MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 546ca9154ddc425843391ba45da25d60e4c89d85d34dfc5028fb56ed94861bbf. 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: 10


Intelligence 10 IOCs YARA File information Comments

SHA256 hash: 546ca9154ddc425843391ba45da25d60e4c89d85d34dfc5028fb56ed94861bbf
SHA3-384 hash: 20723c8fc6d539702b30740901934295784ed1d855ca763fc79e415b198db5f7422a7d62fa3be57d6c8eea68198b276b
SHA1 hash: 3b2e603bfc8a7491b39c2b727f12d62358cef795
MD5 hash: 1325e793007a9ea3807988d6154b12ba
humanhash: avocado-april-apart-thirteen
File name:S12GF803.exe
Download: download sample
Signature Formbook
File size:566'784 bytes
First seen:2020-10-05 11:20:57 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:JqsXWjM6SAMdxEaExI2dNFv5WVh6FNhVonj:JqL3MrfExI2dwVh6F5oj
Threatray 2'306 similar samples on MalwareBazaar
TLSH E3C4BEB58E442AD7C7AD1975C400A23052FEFE091351FA6B2FA67CD172B3249BB61EC4
Reporter abuse_ch
Tags:DEU exe FormBook geo


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: pizza-vip06.virtualhosting.hk
Sending IP: 203.135.158.191
From: edward.sun@hengtai-law.co.uk
Subject: Gerichtsbeschluss
Attachment: S12GF803.zip (contains "S12GF803.exe")

Intelligence


File Origin
# of uploads :
1
# of downloads :
102
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Benign windows process drops PE files
Creates an undocumented autostart registry key
Detected FormBook malware
Injects a PE file into a foreign processes
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
Sigma detected: Steal Google chrome login data
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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 access)
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 293083 Sample: S12GF803.exe Startdate: 05/10/2020 Architecture: WINDOWS Score: 100 56 Malicious sample detected (through community Yara rule) 2->56 58 Multi AV Scanner detection for dropped file 2->58 60 Multi AV Scanner detection for submitted file 2->60 62 5 other signatures 2->62 10 S12GF803.exe 3 2->10         started        process3 file4 46 C:\Users\user\AppData\...\S12GF803.exe.log, ASCII 10->46 dropped 76 Tries to detect virtualization through RDTSC time measurements 10->76 78 Injects a PE file into a foreign processes 10->78 14 S12GF803.exe 10->14         started        signatures5 process6 signatures7 82 Modifies the context of a thread in another process (thread injection) 14->82 84 Maps a DLL or memory area into another process 14->84 86 Sample uses process hollowing technique 14->86 88 Queues an APC in another process (thread injection) 14->88 17 explorer.exe 6 14->17 injected process8 dnsIp9 50 www.thamys.xyz 199.192.22.171, 49751, 49752, 49753 NAMECHEAP-NETUS United States 17->50 52 www.svipjv4y.com 104.27.148.242, 49746, 49747, 49748 CLOUDFLARENETUS United States 17->52 54 www.wlmio.com 66.96.160.157, 49744, 80 BIZLAND-SDUS United States 17->54 38 C:\Users\user\AppData\...\2dj8anupd4ft8nh.exe, PE32 17->38 dropped 40 C:\...\2dj8anupd4ft8nh.exe, PE32 17->40 dropped 64 System process connects to network (likely due to code injection or exploit) 17->64 66 Benign windows process drops PE files 17->66 22 msdt.exe 1 18 17->22         started        26 2dj8anupd4ft8nh.exe 2 17->26         started        file10 signatures11 process12 file13 42 C:\Users\user\AppData\...\5QNlogrv.ini, data 22->42 dropped 44 C:\Users\user\AppData\...\5QNlogri.ini, data 22->44 dropped 68 Detected FormBook malware 22->68 70 Creates an undocumented autostart registry key 22->70 72 Tries to steal Mail credentials (via file access) 22->72 74 4 other signatures 22->74 28 cmd.exe 2 22->28         started        32 cmd.exe 1 22->32         started        signatures14 process15 file16 48 C:\Users\user\AppData\Local\Temp\DB1, SQLite 28->48 dropped 80 Tries to harvest and steal browser information (history, passwords, etc) 28->80 34 conhost.exe 28->34         started        36 conhost.exe 32->36         started        signatures17 process18
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-10-05 07:40:23 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook persistence
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Modifies Internet Explorer settings
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Deletes itself
Reads user/profile data of web browsers
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.thamys.xyz/gss/
Unpacked files
SH256 hash:
546ca9154ddc425843391ba45da25d60e4c89d85d34dfc5028fb56ed94861bbf
MD5 hash:
1325e793007a9ea3807988d6154b12ba
SHA1 hash:
3b2e603bfc8a7491b39c2b727f12d62358cef795
SH256 hash:
01dd844990e0c5fdcea0f88712253aa1ef4750316f0734ab7099306170b5ea2a
MD5 hash:
eb593633270aa19162cf64663df9dd6c
SHA1 hash:
2ec57181471ff10abe9a04239ca3ea86ea4252b9
SH256 hash:
df8c2b62d8eed13ec8262a925897de8c3e24a812d3d82857aaef0992d85a83c0
MD5 hash:
44d7ea93b5b6757691cad6f27995e4e0
SHA1 hash:
45ea5fbd4edb77f4b3855bd8e68086afe5d99297
SH256 hash:
26e43cf1912523208a019992335ad325183dd59309eff05a78b53778f08ac855
MD5 hash:
63a894152d3255f42dcbb5251e470eb2
SHA1 hash:
6f2ed3894180651b6aff1db48e5518b49094f80b
SH256 hash:
815dba4fc93f63797acb27d5f67848d32845c2ff42618115d9c98bfe778f5cef
MD5 hash:
c7631fcb7db6695b49f92612a6383de7
SHA1 hash:
14bbadd62fa0ad080cfa96f1e697ba009acb2182
Detections:
win_formbook_g0 win_formbook_auto
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Malspam

Formbook

Executable exe 546ca9154ddc425843391ba45da25d60e4c89d85d34dfc5028fb56ed94861bbf

(this sample)

  
Delivery method
Distributed via e-mail attachment

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