Windows
Analysis Report
weird.dll
Overview
General Information
Detection
Score: | 23 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 60% |
Signatures
Classification
- System is w10x64
- loaddll64.exe (PID: 6944 cmdline:
loaddll64. exe "C:\Us ers\user\D esktop\wei rd.dll" MD5: 763455F9DCB24DFEECC2B9D9F8D46D52) - conhost.exe (PID: 6968 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - cmd.exe (PID: 7084 cmdline:
cmd.exe /C rundll32. exe "C:\Us ers\user\D esktop\wei rd.dll",#1 MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) - rundll32.exe (PID: 7140 cmdline:
rundll32.e xe "C:\Use rs\user\De sktop\weir d.dll",#1 MD5: EF3179D498793BF4234F708D3BE28633)
- cleanup
Click to jump to signature section
AV Detection |
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Source: | Integrated Neural Analysis Model: |
Source: | Static PE information: |
Source: | Binary string: | ||
Source: | Binary string: | ||
Source: | Binary string: |
Source: | Static PE information: |
Source: | Binary or memory string: |
Source: | Classification label: |
Source: | Mutant created: |
Source: | Static PE information: |
Source: | Key opened: | Jump to behavior |
Source: | Process created: |
Source: | Process created: | |||
Source: | Process created: | |||
Source: | Process created: | |||
Source: | Process created: | |||
Source: | Process created: | Jump to behavior | ||
Source: | Process created: | Jump to behavior |
Source: | Section loaded: | Jump to behavior | ||
Source: | Section loaded: | Jump to behavior |
Source: | Static PE information: |
Source: | Static PE information: |
Source: | Static PE information: |
Source: | Static PE information: |
Source: | Binary string: | ||
Source: | Binary string: | ||
Source: | Binary string: |
Source: | Static PE information: |
Source: | Process information set: | Jump to behavior |
Source: | Thread sleep time: | Jump to behavior |
Source: | Thread injection, dropped files, key value created, disk infection and DNS query: |
Source: | Last function: |
Source: | Thread delayed: | Jump to behavior |
Source: | Thread injection, dropped files, key value created, disk infection and DNS query: |
Source: | Process created: | Jump to behavior |
Reconnaissance | Resource Development | Initial Access | Execution | Persistence | Privilege Escalation | Defense Evasion | Credential Access | Discovery | Lateral Movement | Collection | Command and Control | Exfiltration | Impact |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Gather Victim Identity Information | Acquire Infrastructure | Valid Accounts | Windows Management Instrumentation | 1 DLL Side-Loading | 11 Process Injection | 1 Rundll32 | OS Credential Dumping | 11 Virtualization/Sandbox Evasion | Remote Services | Data from Local System | Data Obfuscation | Exfiltration Over Other Network Medium | Abuse Accessibility Features |
Credentials | Domains | Default Accounts | Scheduled Task/Job | Boot or Logon Initialization Scripts | 1 DLL Side-Loading | 11 Virtualization/Sandbox Evasion | LSASS Memory | 1 System Information Discovery | Remote Desktop Protocol | Data from Removable Media | Junk Data | Exfiltration Over Bluetooth | Network Denial of Service |
Email Addresses | DNS Server | Domain Accounts | At | Logon Script (Windows) | Logon Script (Windows) | 11 Process Injection | Security Account Manager | Query Registry | SMB/Windows Admin Shares | Data from Network Shared Drive | Steganography | Automated Exfiltration | Data Encrypted for Impact |
Employee Names | Virtual Private Server | Local Accounts | Cron | Login Hook | Login Hook | 1 Timestomp | NTDS | System Network Configuration Discovery | Distributed Component Object Model | Input Capture | Protocol Impersonation | Traffic Duplication | Data Destruction |
Gather Victim Network Information | Server | Cloud Accounts | Launchd | Network Logon Script | Network Logon Script | 1 DLL Side-Loading | LSA Secrets | Internet Connection Discovery | SSH | Keylogging | Fallback Channels | Scheduled Transfer | Data Encrypted for Impact |
This section contains all screenshots as thumbnails, including those not shown in the slideshow.
Source | Detection | Scanner | Label | Link |
---|---|---|---|---|
0% | ReversingLabs |
Joe Sandbox version: | 41.0.0 Charoite |
Analysis ID: | 1540387 |
Start date and time: | 2024-10-23 17:58:18 +02:00 |
Joe Sandbox product: | CloudBasic |
Overall analysis duration: | 0h 1m 54s |
Hypervisor based Inspection enabled: | false |
Report type: | full |
Cookbook file name: | default.jbs |
Analysis system description: | Windows 10 x64 22H2 with Office Professional Plus 2019, Chrome 117, Firefox 118, Adobe Reader DC 23, Java 8 Update 381, 7zip 23.01 |
Number of analysed new started processes analysed: | 4 |
Number of new started drivers analysed: | 0 |
Number of existing processes analysed: | 0 |
Number of existing drivers analysed: | 0 |
Number of injected processes analysed: | 0 |
Technologies: |
|
Analysis Mode: | default |
Analysis stop reason: | Timeout |
Sample name: | weird.dll (renamed file extension from none to dll) |
Original Sample Name: | weird |
Detection: | SUS |
Classification: | sus23.winDLL@6/0@0/0 |
EGA Information: | Failed |
HCA Information: |
|
Cookbook Comments: |
|
- Not all processes where analyzed, report is missing behavior information
- VT rate limit hit for: weird.dll
Time | Type | Description |
---|---|---|
11:59:17 | API Interceptor |
File type: | |
Entropy (8bit): | 5.09498958727029 |
TrID: |
|
File name: | weird.dll |
File size: | 24'064 bytes |
MD5: | 34a7856b9671389544a4a9c37a037250 |
SHA1: | a6a04e0372c58624758fda199c3f1e8180048422 |
SHA256: | e36a6367c6b8b7fa9f2f5b059c5df919d9ec2106e6ae5e8177bc2203e8553ef8 |
SHA512: | 559f7896e82b811a039a63a379da8f02a5fe03e409af2ad52a5635fadcec6a396bda08924fd35967be40188722baf667aa29663f50f92864a4fdbbc30780b43c |
SSDEEP: | 384:MTZHuW4xt1EBWYNwWNZ9lrJrPZRwDJX33nLN4+Q6PNaHnu8:M1Hkt1EvNwAvJLrgNXLNa |
TLSH: | 73B2D510D7D98A36D86B86351CA35A00993BFDD6FA30ABDF1441A31F5C623D09AB2B71 |
File Content Preview: | MZ......................@.......................................................................................................PE..d...k............." ............................D.........................................`................................ |
Icon Hash: | 7ae282899bbab082 |
Entrypoint: | 0x644a0000000 |
Entrypoint Section: | |
Digitally signed: | false |
Imagebase: | 0x644a0000000 |
Subsystem: | windows cui |
Image File Characteristics: | EXECUTABLE_IMAGE, LARGE_ADDRESS_AWARE, DLL |
DLL Characteristics: | HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, TERMINAL_SERVER_AWARE |
Time Stamp: | 0x9AD6A36B [Fri Apr 26 15:23:23 2052 UTC] |
TLS Callbacks: | |
CLR (.Net) Version: | |
OS Version Major: | 5 |
OS Version Minor: | 2 |
File Version Major: | 5 |
File Version Minor: | 2 |
Subsystem Version Major: | 5 |
Subsystem Version Minor: | 2 |
Import Hash: |
Instruction |
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dec ebp |
pop edx |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
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add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
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add byte ptr [eax], al |
inc eax |
add byte ptr [eax], al |
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add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax+00000000h], al |
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add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax+45h], dl |
add byte ptr [eax], al |
xchg byte ptr fs:[ebx], al |
add byte ptr [ebx-5Dh], ch |
salc |
call far 0000h : 00000000h |
add byte ptr [eax], al |
lock add byte ptr [edx], ah |
and byte ptr [ebx], cl |
add cl, byte ptr [ebx] |
add byte ptr [eax], al |
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add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
add byte ptr [eax], al |
mov al, byte ptr [00000644h] |
add byte ptr [eax], dl |
add byte ptr [eax], al |
add byte ptr [edx], al |
add byte ptr [eax], al |
add eax, 00000200h |
add byte ptr [eax], al |
Name | Virtual Address | Virtual Size | Is in Section |
---|---|---|---|
IMAGE_DIRECTORY_ENTRY_EXPORT | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_IMPORT | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_RESOURCE | 0x3000 | 0x57c | .text |
IMAGE_DIRECTORY_ENTRY_EXCEPTION | 0x3e1c | 0x6c | .text |
IMAGE_DIRECTORY_ENTRY_SECURITY | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_BASERELOC | 0x8000 | 0x1b0 | .reloc |
IMAGE_DIRECTORY_ENTRY_DEBUG | 0x7060 | 0x54 | .text |
IMAGE_DIRECTORY_ENTRY_COPYRIGHT | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_GLOBALPTR | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_TLS | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_IAT | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT | 0x0 | 0x0 | |
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR | 0x3580 | 0x48 | .text |
IMAGE_DIRECTORY_ENTRY_RESERVED | 0x0 | 0x0 |
Name | Virtual Address | Virtual Size | Raw Size | MD5 | Xored PE | ZLIB Complexity | File Type | Entropy | Characteristics |
---|---|---|---|---|---|---|---|---|---|
.data | 0x1000 | 0x1580 | 0x1600 | 256866013fbfa471814f579466446cc4 | False | 0.19176136363636365 | data | 2.1533367024494297 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE |
.text | 0x3000 | 0x428f | 0x4400 | 7db6b7201674b4a993763a4c4a500a93 | False | 0.5068359375 | data | 5.780313058378867 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ |
.reloc | 0x8000 | 0x1b0 | 0x200 | 00f9ac86fd9ddadb2971baf4b7a54e15 | False | 0.638671875 | data | 4.6077544975514835 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ |
Name | RVA | Size | Type | Language | Country | ZLIB Complexity |
---|---|---|---|---|---|---|
RT_VERSION | 0x3058 | 0x524 | data | 0.3882978723404255 |
Click to jump to process
Click to jump to process
Click to jump to process
Target ID: | 0 |
Start time: | 11:59:16 |
Start date: | 23/10/2024 |
Path: | C:\Windows\System32\loaddll64.exe |
Wow64 process (32bit): | false |
Commandline: | |
Imagebase: | 0x7ff727250000 |
File size: | 165'888 bytes |
MD5 hash: | 763455F9DCB24DFEECC2B9D9F8D46D52 |
Has elevated privileges: | true |
Has administrator privileges: | true |
Programmed in: | C, C++ or other language |
Reputation: | high |
Has exited: | true |
Target ID: | 1 |
Start time: | 11:59:16 |
Start date: | 23/10/2024 |
Path: | C:\Windows\System32\conhost.exe |
Wow64 process (32bit): | false |
Commandline: | |
Imagebase: | 0x7ff7699e0000 |
File size: | 862'208 bytes |
MD5 hash: | 0D698AF330FD17BEE3BF90011D49251D |
Has elevated privileges: | true |
Has administrator privileges: | true |
Programmed in: | C, C++ or other language |
Reputation: | high |
Has exited: | true |
Target ID: | 2 |
Start time: | 11:59:17 |
Start date: | 23/10/2024 |
Path: | C:\Windows\System32\cmd.exe |
Wow64 process (32bit): | false |
Commandline: | |
Imagebase: | 0x7ff7f2050000 |
File size: | 289'792 bytes |
MD5 hash: | 8A2122E8162DBEF04694B9C3E0B6CDEE |
Has elevated privileges: | true |
Has administrator privileges: | true |
Programmed in: | C, C++ or other language |
Reputation: | high |
Has exited: | true |
Target ID: | 3 |
Start time: | 11:59:17 |
Start date: | 23/10/2024 |
Path: | C:\Windows\System32\rundll32.exe |
Wow64 process (32bit): | false |
Commandline: | |
Imagebase: | 0x7ff78b230000 |
File size: | 71'680 bytes |
MD5 hash: | EF3179D498793BF4234F708D3BE28633 |
Has elevated privileges: | true |
Has administrator privileges: | true |
Programmed in: | C, C++ or other language |
Reputation: | high |
Has exited: | true |