MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4960b0a063c800279ba12fbee0e6cd6c4dbd9805c635f41bb178374e17082f11. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



Formbook


Vendor detections: 14


Intelligence 14 IOCs YARA 3 File information Comments

SHA256 hash: 4960b0a063c800279ba12fbee0e6cd6c4dbd9805c635f41bb178374e17082f11
SHA3-384 hash: b1e53449c891aade96fabc3cceb03865851c5376319ddc3eb9e272dc6600b595afaf776412d82184ed35a1bcd27b942a
SHA1 hash: e5314f304e7d70982b46693063c337e93646ae9a
MD5 hash: 02d272c7fda0537f81a965ab824a166a
humanhash: quebec-aspen-kilo-monkey
File name:PO _B930038838.exe
Download: download sample
Signature Formbook
File size:607'744 bytes
First seen:2022-06-15 11:20:16 UTC
Last seen:2022-06-15 12:05:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:WlfsXKarruJBOspA76z2M4HEt3X2jUW4fywmjCFCH1H:9Karru3OQz2o2wmjMC
Threatray 13'890 similar samples on MalwareBazaar
TLSH T103D4E03023B84729D56AA7FDF020907507FAB627B12AF7EE5B0174D919D27818923E73
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter malwarelabnet
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
262
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching cmd.exe command interpreter
Creating a window
Launching a process
Creating a process with a hidden window
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 646107 Sample: PO _B930038838.exe Startdate: 15/06/2022 Architecture: WINDOWS Score: 100 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus detection for URL or domain 2->50 52 Multi AV Scanner detection for dropped file 2->52 54 10 other signatures 2->54 10 PO _B930038838.exe 7 2->10         started        process3 file4 40 C:\Users\user\AppData\...\adVYjDLavucKJ.exe, PE32 10->40 dropped 42 C:\...\adVYjDLavucKJ.exe:Zone.Identifier, ASCII 10->42 dropped 44 C:\Users\user\AppData\Local\...\tmpE960.tmp, XML 10->44 dropped 46 C:\Users\user\...\PO _B930038838.exe.log, ASCII 10->46 dropped 56 Adds a directory exclusion to Windows Defender 10->56 58 Injects a PE file into a foreign processes 10->58 14 PO _B930038838.exe 10->14         started        17 powershell.exe 24 10->17         started        19 powershell.exe 25 10->19         started        21 schtasks.exe 10->21         started        signatures5 process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 23 explorer.exe 14->23 injected 25 conhost.exe 17->25         started        27 conhost.exe 19->27         started        29 conhost.exe 21->29         started        process8 process9 31 explorer.exe 23->31         started        signatures10 68 Modifies the context of a thread in another process (thread injection) 31->68 70 Maps a DLL or memory area into another process 31->70 72 Tries to detect virtualization through RDTSC time measurements 31->72 34 cmd.exe 31->34         started        36 explorer.exe 31->36         started        process11 process12 38 conhost.exe 34->38         started       
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2022-06-15 04:25:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:n6ef rat spyware stealer suricata trojan
Behaviour
Creates scheduled task(s)
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
f8f84deab420564bf979f060786a68241ba6ee40a6c38e10fadd22e6a00fdbb9
MD5 hash:
61653b3c6b630caf2791c71207db79ce
SHA1 hash:
8d38d97ad7079ab494ba38993874cc52cedb6be9
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
5e95b92999dc337f367d2c8e91e68daadbcdfc537d2d11fa2612ce68a58e8d04
MD5 hash:
e3df2dd40f0ce5dcd593a52653983ca4
SHA1 hash:
d7d895a35867dc41c8a03ab5ec3aa4e38e1a08a3
SH256 hash:
62a84649e6e54773a7a6d94988e7682d949f6fc102ac9729589539bae8093a23
MD5 hash:
3eaf438a0eaa96b16aee001e9d8ed4a1
SHA1 hash:
88eca33f1eb70e5b9d5c78a66e95f9029d8681a6
SH256 hash:
59756af9db8ad076632df3900e144bd26f3197564bb5d5af433bea0f66d5c5ec
MD5 hash:
834af651197501e0a2d4866fa4c66bf5
SHA1 hash:
1ed352ad753090f2554b59e9352aa5157e8a07c9
SH256 hash:
4960b0a063c800279ba12fbee0e6cd6c4dbd9805c635f41bb178374e17082f11
MD5 hash:
02d272c7fda0537f81a965ab824a166a
SHA1 hash:
e5314f304e7d70982b46693063c337e93646ae9a
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:exploit_any_poppopret
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Comments