Windows Analysis Report
1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe

Overview

General Information

Sample name: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe
Analysis ID: 1561553
MD5: 2d7c75f028b353192b3701aa85394937
SHA1: 0217caad3688f814524a1befc7a2c7cac994c11b
SHA256: ad4efc90ae107111294d887b791c90776d0a0de2f6b4290c9437919430a71672
Tags: base64-decodedexeuser-abuse_ch
Infos:

Detection

LummaC
Score: 84
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

Found malware configuration
Multi AV Scanner detection for submitted file
Yara detected LummaC Stealer
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
LummaC encrypted strings found
Machine Learning detection for sample
Sample uses string decryption to hide its real strings
AV process strings found (often used to terminate AV products)
Checks if the current process is being debugged
Detected potential crypto function
Found inlined nop instructions (likely shell or obfuscated code)
One or more processes crash
PE file does not import any functions
Uses 32bit PE files
Uses code obfuscation techniques (call, push, ret)

Classification

Name Description Attribution Blogpost URLs Link
Lumma Stealer, LummaC2 Stealer Lumma Stealer (aka LummaC2 Stealer) is an information stealer written in C language that has been available through a Malware-as-a-Service (MaaS) model on Russian-speaking forums since at least August 2022. It is believed to have been developed by the threat actor "Shamel", who goes by the alias "Lumma". Lumma Stealer primarily targets cryptocurrency wallets and two-factor authentication (2FA) browser extensions, before ultimately stealing sensitive information from the victim's machine. Once the targeted data is obtained, it is exfiltrated to a C2 server via HTTP POST requests using the user agent "TeslaBrowser/5.5"." The stealer also features a non-resident loader that is capable of delivering additional payloads via EXE, DLL, and PowerShell. No Attribution https://malpedia.caad.fkie.fraunhofer.de/details/win.lumma

AV Detection

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Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe Malware Configuration Extractor: LummaC {"C2 url": ["thicktoys.sbs", "faintbl0w.sbs", "300snails.sbs", "3xc1aimbl0w.sbs"], "Build id": "rMQbTX--Newcrupt"}
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe ReversingLabs: Detection: 26%
Source: Submited Sample Integrated Neural Analysis Model: Matched 99.9% probability
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe Joe Sandbox ML: detected
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe String decryptor: faintbl0w.sbs
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe String decryptor: 300snails.sbs
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe String decryptor: 3xc1aimbl0w.sbs
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe String decryptor: thicktoys.sbs
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe String decryptor: 300snails.sbs
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe String decryptor: lid=%s&j=%s&ver=4.0
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe String decryptor: TeslaBrowser/5.5
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe String decryptor: - Screen Resoluton:
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe String decryptor: - Physical Installed Memory:
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe String decryptor: Workgroup: -
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe String decryptor: rMQbTX--Newcrupt
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe Static PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE
Source: C:\Users\user\Desktop\1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe Code function: 4x nop then mov ebx, dword ptr [esp] 4_2_0040694B
Source: C:\Users\user\Desktop\1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe Code function: 4x nop then movzx edx, byte ptr [esp+ecx-6DF80C8Dh] 4_2_0043E5E9
Source: C:\Users\user\Desktop\1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe Code function: 4x nop then cmp ebx, 000007FFh 4_2_0040978C
Source: C:\Users\user\Desktop\1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe Code function: 4x nop then cmp ebx, 000007FFh 4_2_00409716

Networking

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Source: Malware configuration extractor URLs: thicktoys.sbs
Source: Malware configuration extractor URLs: faintbl0w.sbs
Source: Malware configuration extractor URLs: 300snails.sbs
Source: Malware configuration extractor URLs: 3xc1aimbl0w.sbs
Source: Amcache.hve.8.dr String found in binary or memory: http://upx.sf.net
Source: C:\Users\user\Desktop\1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe Code function: 4_2_00406091 4_2_00406091
Source: C:\Users\user\Desktop\1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe Code function: 4_2_00402987 4_2_00402987
Source: C:\Users\user\Desktop\1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe Process created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 6648 -s 224
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe Static PE information: No import functions for PE file found
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe Static PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE
Source: classification engine Classification label: mal84.troj.evad.winEXE@2/5@0/0
Source: C:\Windows\SysWOW64\WerFault.exe Mutant created: \Sessions\1\BaseNamedObjects\Local\WERReportingForProcess6648
Source: C:\Windows\SysWOW64\WerFault.exe File created: C:\ProgramData\Microsoft\Windows\WER\Temp\f17783c6-dbde-4383-b71b-522c95663622 Jump to behavior
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
Source: C:\Users\user\Desktop\1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers Jump to behavior
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe ReversingLabs: Detection: 26%
Source: unknown Process created: C:\Users\user\Desktop\1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe "C:\Users\user\Desktop\1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe"
Source: C:\Users\user\Desktop\1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe Process created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 6648 -s 224
Source: C:\Users\user\Desktop\1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe Section loaded: apphelp.dll Jump to behavior
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe Static PE information: DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE
Source: C:\Users\user\Desktop\1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe Code function: 4_2_00437D8E push dword ptr [ecx+ebx*8-7Dh]; ret 4_2_00437E57
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: FAILCRITICALERRORS | NOGPFAULTERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: FAILCRITICALERRORS | NOGPFAULTERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: FAILCRITICALERRORS | NOGPFAULTERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: FAILCRITICALERRORS | NOGPFAULTERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: FAILCRITICALERRORS | NOGPFAULTERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe Process information set: NOOPENFILEERRORBOX Jump to behavior
Source: Amcache.hve.8.dr Binary or memory string: VMware
Source: Amcache.hve.8.dr Binary or memory string: VMware Virtual USB Mouse
Source: Amcache.hve.8.dr Binary or memory string: vmci.syshbin
Source: Amcache.hve.8.dr Binary or memory string: VMware, Inc.
Source: Amcache.hve.8.dr Binary or memory string: VMware20,1hbin@
Source: Amcache.hve.8.dr Binary or memory string: c:\windows\system32\driverstore\filerepository\vmci.inf_amd64_68ed49469341f563
Source: Amcache.hve.8.dr Binary or memory string: Ascsi/cdrom&ven_necvmwar&prod_vmware_sata_cd00/4&224f42ef&0&000000
Source: Amcache.hve.8.dr Binary or memory string: .Z$c:/windows/system32/drivers/vmci.sys
Source: Amcache.hve.8.dr Binary or memory string: :scsi/disk&ven_vmware&prod_virtual_disk/4&1656f219&0&000000
Source: Amcache.hve.8.dr Binary or memory string: pci\ven_15ad&dev_0740&subsys_074015ad,pci\ven_15ad&dev_0740,root\vmwvmcihostdev
Source: Amcache.hve.8.dr Binary or memory string: c:/windows/system32/drivers/vmci.sys
Source: Amcache.hve.8.dr Binary or memory string: scsi/cdrom&ven_necvmwar&prod_vmware_sata_cd00/4&224f42ef&0&000000
Source: Amcache.hve.8.dr Binary or memory string: vmci.sys
Source: Amcache.hve.8.dr Binary or memory string: vmci.syshbin`
Source: Amcache.hve.8.dr Binary or memory string: \driver\vmci,\driver\pci
Source: Amcache.hve.8.dr Binary or memory string: scsi/disk&ven_vmware&prod_virtual_disk/4&1656f219&0&000000
Source: Amcache.hve.8.dr Binary or memory string: VMware20,1
Source: Amcache.hve.8.dr Binary or memory string: Microsoft Hyper-V Generation Counter
Source: Amcache.hve.8.dr Binary or memory string: NECVMWar VMware SATA CD00
Source: Amcache.hve.8.dr Binary or memory string: VMware Virtual disk SCSI Disk Device
Source: Amcache.hve.8.dr Binary or memory string: scsi\cdromnecvmwarvmware_sata_cd001.00,scsi\cdromnecvmwarvmware_sata_cd00,scsi\cdromnecvmwar,scsi\necvmwarvmware_sata_cd001,necvmwarvmware_sata_cd001,gencdrom
Source: Amcache.hve.8.dr Binary or memory string: scsi\diskvmware__virtual_disk____2.0_,scsi\diskvmware__virtual_disk____,scsi\diskvmware__,scsi\vmware__virtual_disk____2,vmware__virtual_disk____2,gendisk
Source: Amcache.hve.8.dr Binary or memory string: Microsoft Hyper-V Virtualization Infrastructure Driver
Source: Amcache.hve.8.dr Binary or memory string: VMware PCI VMCI Bus Device
Source: Amcache.hve.8.dr Binary or memory string: VMware VMCI Bus Device
Source: Amcache.hve.8.dr Binary or memory string: VMware Virtual RAM
Source: Amcache.hve.8.dr Binary or memory string: BiosVendor:VMware, Inc.,BiosVersion:VMW201.00V.20829224.B64.2211211842,BiosReleaseDate:11/21/2022,BiosMajorRelease:0xff,BiosMinorRelease:0xff,SystemManufacturer:VMware, Inc.,SystemProduct:VMware20,1,SystemFamily:,SystemSKUNumber:,BaseboardManufacturer:,BaseboardProduct:,BaseboardVersion:,EnclosureType:0x1
Source: Amcache.hve.8.dr Binary or memory string: VMware-42 27 88 19 56 cc 59 1a-97 79 fb 8c bf a1 e2 9d
Source: Amcache.hve.8.dr Binary or memory string: vmci.inf_amd64_68ed49469341f563
Source: C:\Users\user\Desktop\1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe Process queried: DebugPort Jump to behavior
Source: C:\Users\user\Desktop\1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe Process queried: DebugPort Jump to behavior

HIPS / PFW / Operating System Protection Evasion

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Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe, 00000004.00000000.1277830079.0000000000442000.00000008.00000001.01000000.00000004.sdmp String found in binary or memory: faintbl0w.sbs
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe, 00000004.00000000.1277830079.0000000000442000.00000008.00000001.01000000.00000004.sdmp String found in binary or memory: 300snails.sbs
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe, 00000004.00000000.1277830079.0000000000442000.00000008.00000001.01000000.00000004.sdmp String found in binary or memory: 3xc1aimbl0w.sbs
Source: 1732382826559c62d8b84c02e95636f46212b9f803082b7868187644fff4926ca8a53349c1874.dat-decoded.exe, 00000004.00000000.1277830079.0000000000442000.00000008.00000001.01000000.00000004.sdmp String found in binary or memory: thicktoys.sbs
Source: Amcache.hve.8.dr Binary or memory string: c:\programdata\microsoft\windows defender\platform\4.18.23080.2006-0\msmpeng.exe
Source: Amcache.hve.8.dr Binary or memory string: msmpeng.exe
Source: Amcache.hve.8.dr Binary or memory string: c:\program files\windows defender\msmpeng.exe
Source: Amcache.hve.8.dr Binary or memory string: c:\programdata\microsoft\windows defender\platform\4.18.23090.2008-0\msmpeng.exe
Source: Amcache.hve.8.dr Binary or memory string: MsMpEng.exe

Stealing of Sensitive Information

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Source: Yara match File source: decrypted.binstr, type: MEMORYSTR

Remote Access Functionality

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Source: Yara match File source: decrypted.binstr, type: MEMORYSTR
No contacted IP infos