MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1844c54e3b36bd69aeeeea0ddd335114f344f20904fcdfcd5a3980328ebf19c. 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 File information Comments

SHA256 hash: a1844c54e3b36bd69aeeeea0ddd335114f344f20904fcdfcd5a3980328ebf19c
SHA3-384 hash: a8af23472d93b647a5c9f8b26d18c3d5ab8d02b31e93fe502acc066bfcf13a7cdf91d6bf0abe95d79fa1f6135d88a20c
SHA1 hash: 18368f04293fc7ce3e9ab6d5a9650d42cd2ac822
MD5 hash: e481e4352cbd8ab6ead3cff49d473c37
humanhash: spaghetti-bacon-wyoming-fifteen
File name:BOQ and MEP WORKS.exe
Download: download sample
Signature Formbook
File size:504'064 bytes
First seen:2022-03-28 02:52:50 UTC
Last seen:2022-03-28 09:01:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:OGi8ZrvylOb/v5DQW8M5Ii9/3izavT79w8dS2W25pxvb/0YYlM1TKviw3QFSrSlf:nvQ4v5kOIzarphdvhj/Ee1Miwgv
Threatray 14'487 similar samples on MalwareBazaar
TLSH T1F6B41246B7D0EE73C29B15B05DC2DB349334FD945A672B6333A07B9F3D320A6A806295
File icon (PE):PE icon
dhash icon 30d8eca4f1f67680 (1 x Formbook)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
4
# of downloads :
225
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching the process to change network settings
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Reading critical registry keys
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe formbook overlay packed shell32.dll
Result
Verdict:
MALICIOUS
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
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses netsh to modify the Windows network and firewall settings
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 597942 Sample: BOQ and MEP WORKS.exe Startdate: 28/03/2022 Architecture: WINDOWS Score: 100 34 www.easydank.com 2->34 36 www.mousevoyages.com 2->36 38 parking.namesilo.com 2->38 54 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 6 other signatures 2->60 12 BOQ and MEP WORKS.exe 18 2->12         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\...\tkfvxhgd.exe, PE32 12->32 dropped 15 tkfvxhgd.exe 12->15         started        process6 signatures7 72 Tries to detect virtualization through RDTSC time measurements 15->72 18 tkfvxhgd.exe 15->18         started        process8 signatures9 46 Modifies the context of a thread in another process (thread injection) 18->46 48 Maps a DLL or memory area into another process 18->48 50 Sample uses process hollowing technique 18->50 52 Queues an APC in another process (thread injection) 18->52 21 explorer.exe 18->21 injected process10 dnsIp11 40 locksmith-san-rafael.com 192.254.225.180, 49834, 80 UNIFIEDLAYER-AS-1US United States 21->40 42 www.u-satukta.com 107.148.67.23, 49860, 80 PEGTECHINCUS United States 21->42 44 www.locksmith-san-rafael.com 21->44 62 System process connects to network (likely due to code injection or exploit) 21->62 64 Uses netsh to modify the Windows network and firewall settings 21->64 25 netsh.exe 21->25         started        signatures12 process13 signatures14 66 Modifies the context of a thread in another process (thread injection) 25->66 68 Maps a DLL or memory area into another process 25->68 70 Tries to detect virtualization through RDTSC time measurements 25->70 28 cmd.exe 1 25->28         started        process15 process16 30 conhost.exe 28->30         started       
Threat name:
Win32.Trojan.Nsisx
Status:
Malicious
First seen:
2022-03-28 02:53:08 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
14 of 42 (33.33%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:dn19 rat spyware stealer trojan
Behaviour
Gathers network information
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
Loads dropped DLL
Blocklisted process makes network request
Executes dropped EXE
Formbook Payload
Formbook
Unpacked files
SH256 hash:
75f0e20d3952be0efac0521fd7b76ab9002a8436f66d4ef19c84402706afec38
MD5 hash:
24120c4a50f32c6a057cd17071981fb2
SHA1 hash:
dc0ba6ff6088750fd49d871b3aba2fef486f16aa
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
571eda9acdc7318c41c1a1d6eee2090dc15febc55817b8567eeda8f751434263
MD5 hash:
cd4ed0f40888c2ce76ad593d14d08256
SHA1 hash:
d34ec74ced9506da43d781a2f61de99f70ecff89
SH256 hash:
a1844c54e3b36bd69aeeeea0ddd335114f344f20904fcdfcd5a3980328ebf19c
MD5 hash:
e481e4352cbd8ab6ead3cff49d473c37
SHA1 hash:
18368f04293fc7ce3e9ab6d5a9650d42cd2ac822
Malware family:
FormBook
Verdict:
Malicious
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 a1844c54e3b36bd69aeeeea0ddd335114f344f20904fcdfcd5a3980328ebf19c

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

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