MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6e14859642862aa879cc5b6913e74317121f51c9560499e0a94ed59b95202022. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments

SHA256 hash: 6e14859642862aa879cc5b6913e74317121f51c9560499e0a94ed59b95202022
SHA3-384 hash: 276f0628ea986bcee9367738f824fc066d1480d322a8878a6f34c9c1c299a7cd516952923afba132ab07b23ebaf5f799
SHA1 hash: 1dde2ee6131180d57ab8a0b19b66b59bcb3a03bf
MD5 hash: 87e493380c0b867f378f84d9c300f29d
humanhash: dakota-coffee-sad-california
File name:Purchas.exe
Download: download sample
Signature Formbook
File size:558'080 bytes
First seen:2022-04-06 12:14:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:HejULv+NqJ0BBnyWtXGB1KumK86GrUq74I9zxsnrhXwWCUAFMqFnIHgHIyproPDS:He4+N6WdGBcE86Grv0VU1IHiryxaq
Threatray 14'633 similar samples on MalwareBazaar
TLSH T1E3C4024922882716DC3C67F694360DB40771AF3B7D22F5ED5EC1B6EA28337D84912A87
File icon (PE):PE icon
dhash icon 7cf6b6aa8ed0e8b4 (18 x Formbook, 3 x SnakeKeylogger, 2 x NanoCore)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
244
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Launching the process to change network settings
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe obfuscated packed
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
.NET source code contains potential unpacker
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
Self deletion via cmd delete
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 603949 Sample: Purchas.exe Startdate: 06/04/2022 Architecture: WINDOWS Score: 100 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 7 other signatures 2->42 10 Purchas.exe 3 2->10         started        process3 file4 30 C:\Users\user\AppData\...\Purchas.exe.log, ASCII 10->30 dropped 54 Tries to detect virtualization through RDTSC time measurements 10->54 14 Purchas.exe 10->14         started        17 Purchas.exe 10->17         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 19 explorer.exe 14->19 injected process8 dnsIp9 32 www.kelaikemc.com 38.63.8.215, 49832, 80 COGENT-174US United States 19->32 34 www.wecome.club 19->34 44 System process connects to network (likely due to code injection or exploit) 19->44 23 WWAHost.exe 19->23         started        signatures10 process11 signatures12 46 Self deletion via cmd delete 23->46 48 Modifies the context of a thread in another process (thread injection) 23->48 50 Maps a DLL or memory area into another process 23->50 52 Tries to detect virtualization through RDTSC time measurements 23->52 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2022-04-06 10:14:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
31
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:d1n3 rat spyware stealer suricata trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
fe58122a2dc9f6b7c57eb945796affbcaa214b940cc31ea78bb3a93ec99b78bd
MD5 hash:
d4be86e94d2483566e3b788be1cf4658
SHA1 hash:
9e859c78492536bbcb13ce9a1efdebf5b73a6316
SH256 hash:
c41321b794fd2f956210021c1a89ec6bf155325ecf896333087acef13328cb1f
MD5 hash:
f599d55b4485b86ec492543816040907
SHA1 hash:
6d3eb6097d7af4991f6fc956755af70217050908
SH256 hash:
d7740601696115a019ed535270de2d17a22fb91d12393d7a226e8ada8eaf96d5
MD5 hash:
ec1ae5040196c389998848651ba99ad0
SHA1 hash:
274328218cb55ad766f0089de4540d349755b812
SH256 hash:
6e14859642862aa879cc5b6913e74317121f51c9560499e0a94ed59b95202022
MD5 hash:
87e493380c0b867f378f84d9c300f29d
SHA1 hash:
1dde2ee6131180d57ab8a0b19b66b59bcb3a03bf
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: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.

Malspam

Formbook

Executable exe 6e14859642862aa879cc5b6913e74317121f51c9560499e0a94ed59b95202022

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

Comments