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Windows
Analysis Report
Specification and Quantity Pdf.exe
Overview
General Information
Detection
FormBook
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus detection for URL or domain
Detected FormBook malware
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Steal Google chrome login data
Suricata IDS alerts for network traffic
System process connects to network (likely due to code injection or exploit)
Yara detected FormBook
AI detected suspicious sample
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Drops PE files to the user root directory
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Rundll32 Execution Without CommandLine Parameters
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Allocates memory with a write watch (potentially for evading sandboxes)
Checks if the current process is being debugged
Contains functionality for execution timing, often used to detect debuggers
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains functionality to call native functions
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to query locales information (e.g. system language)
Contains functionality to read the PEB
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected potential crypto function
Drops PE files
Drops PE files to the user directory
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found decision node followed by non-executed suspicious APIs
Found evasive API chain (date check)
Found inlined nop instructions (likely shell or obfuscated code)
Found large amount of non-executed APIs
Found potential string decryption / allocating functions
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
PE / OLE file has an invalid certificate
PE file contains sections with non-standard names
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Sample file is different than original file name gathered from version info
Sigma detected: Potential Browser Data Stealing
Sigma detected: Powershell Defender Exclusion
Sigma detected: Uncommon Svchost Parent Process
Sigma detected: Use Short Name Path in Command Line
Uses code obfuscation techniques (call, push, ret)
Yara signature match
Classification
- System is w10x64
- Specification and Quantity Pdf.exe (PID: 7692 cmdline:
"C:\Users\ user\Deskt op\Specifi cation and Quantity Pdf.exe" MD5: 686FED0AF9EEBB2581701D4E08E9FF0B) - conhost.exe (PID: 7712 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - powershell.exe (PID: 7812 cmdline:
"C:\Window s\system32 \WindowsPo werShell\v 1.0\powers hell.exe" Add-MpPref erence -Ex clusionPat h $env:Use rProfile MD5: 04029E121A0CFA5991749937DD22A1D9) - conhost.exe (PID: 7820 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - WmiPrvSE.exe (PID: 8096 cmdline:
C:\Windows \system32\ wbem\wmipr vse.exe -s ecured -Em bedding MD5: 60FF40CFD7FB8FE41EE4FE9AE5FE1C51) - svchost.exe (PID: 7924 cmdline:
"C:\Window s\System32 \svchost.e xe" MD5: B7F884C1B74A263F746EE12A5F7C9F6A) - wmplayer.exe (PID: 7956 cmdline:
"C:\Progra m Files (x 86)\Window s Media Pl ayer\wmpla yer.exe" MD5: A7790328035BBFCF041A6D815F9C28DF) - explorer.exe (PID: 4056 cmdline:
C:\Windows \Explorer. EXE MD5: 662F4F92FDE3557E86D110526BB578D5) - rundll32.exe (PID: 8156 cmdline:
"C:\Window s\SysWOW64 \rundll32. exe" MD5: 889B99C52A60DD49227C5E485A016679) - cmd.exe (PID: 1352 cmdline:
/c copy "C :\Users\us er\AppData \Local\Goo gle\Chrome \User Data \Default\L ogin Data" "C:\Users \user~1\Ap pData\Loca l\Temp\DB1 " /V MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - conhost.exe (PID: 6524 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - firefox.exe (PID: 6192 cmdline:
"C:\Progra m Files\Mo zilla Fire fox\Firefo x.exe" MD5: C86B1BE9ED6496FE0E0CBE73F81D8045)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
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Formbook, Formbo | FormBook contains a unique crypter RunPE that has unique behavioral patterns subject to detection. It was initially called "Babushka Crypter" by Insidemalware. |
{"C2 list": ["www.playdoapp.online/n7ak/"], "decoy": ["wise-transfer.info", "jam-nins.com", "thebestsocialcrm.com", "majomeow222.com", "ancientshadowguilt.space", "gentleman-china.com", "parquemermoz.store", "taxuw.com", "sharqiyapaints.com", "libraryofkath.com", "1949wan.com", "synqr.net", "bitchessgirls.com", "btonu.cfd", "coding-bootcamps-16314.com", "leadership22-tdh.site", "maximsboutique.com", "irishsummertruffles.com", "sdnaqianchuan.com", "uyews.xyz", "mostvisitors.com", "prembug.com", "lebondtrip.com", "villavouno.com", "solanosotostudio.com", "pbx1.website", "littleeturtle.com", "supremeajock.biz", "turborings.run", "parkpeninsula.online", "goodstuff.tv", "17qld.com", "thehandycrewcompany.com", "alwaystuesdaytacos.com", "entribeworks.com", "susanboyleinfo.com", "volkovastyu.com", "tradingmoja.com", "germancompany-eg.com", "gameofgem.com", "hbdpcq.com", "budsdesigns.com", "sistemrizal.xyz", "395boulderbrookdr.com", "forounlock.com", "cp2967.com", "creatividadymedia.com", "marocquadchallenge.com", "tuktukwines.com", "tripskorea.com", "eyvonnesewingshop.com", "1690.biz", "perfectkick.website", "jreengineering.tech", "lilmeow.store", "ttjsdispatchingllc.com", "carltonellis.com", "redantholdings.com", "luxuryworkingfarms.com", "appsecintelligence.com", "studmate.online", "imogenbot.store", "netheerlandart.com", "bikelegalkentucky.com"]}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_FormBook | Yara detected FormBook | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
Windows_Trojan_Formbook_1112e116 | unknown | unknown |
| |
Formbook_1 | autogenerated rule brought to you by yara-signator | Felix Bilstein - yara-signator at cocacoding dot com |
| |
Formbook | detect Formbook in memory | JPCERT/CC Incident Response Group |
| |
Click to see the 40 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_FormBook | Yara detected FormBook | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
Windows_Trojan_Formbook_1112e116 | unknown | unknown |
| |
Formbook_1 | autogenerated rule brought to you by yara-signator | Felix Bilstein - yara-signator at cocacoding dot com |
| |
Formbook | detect Formbook in memory | JPCERT/CC Incident Response Group |
| |
Click to see the 25 entries |
System Summary |
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Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Nasreddine Bencherchali (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: frack113, Nasreddine Bencherchali: |
Source: | Author: Roberto Rodriguez @Cyb3rWard0g (rule), oscd.community (improvements): |
Source: | Author: vburov: |
Stealing of Sensitive Information |
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Source: | Author: Joe Security: |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-09-22T17:27:13.393340+0200 | 2031453 | 1 | Malware Command and Control Activity Detected | 192.168.2.7 | 49713 | 23.227.38.74 | 80 | TCP |
2024-09-22T17:29:39.690092+0200 | 2031453 | 1 | Malware Command and Control Activity Detected | 192.168.2.7 | 49716 | 78.46.88.140 | 80 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-09-22T17:27:13.456161+0200 | 2829004 | 1 | Malware Command and Control Activity Detected | 192.168.2.7 | 49714 | 23.227.38.74 | 80 | TCP |
2024-09-22T17:28:14.376902+0200 | 2829004 | 1 | Malware Command and Control Activity Detected | 192.168.2.7 | 49715 | 203.161.60.191 | 80 | TCP |
2024-09-22T17:29:41.658867+0200 | 2829004 | 1 | Malware Command and Control Activity Detected | 192.168.2.7 | 49717 | 78.46.88.140 | 80 | TCP |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Code function: | 0_2_00007FF773D34450 | |
Source: | Code function: | 0_2_00007FF773D30200 | |
Source: | Code function: | 0_2_00007FF773D0CC30 | |
Source: | Code function: | 0_2_00007FF773CDFAA0 | |
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Source: | Code function: | 0_2_00007FF773CDF9C0 | |
Source: | Code function: | 0_2_00007FF773CC9FC0 | |
Source: | Code function: | 6_2_00417D89 | |
Source: | Code function: | 10_2_00356CB3 | |
Source: | Code function: | 10_2_00357D89 |
Networking |
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Source: | Network Connect: | Jump to behavior | ||
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Source: | Code function: | 8_2_10A47F82 |
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