MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91677aa9196e065f40cebb6b50c95524f24161a45436469568954d2bc5d9903c. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
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SHA256 hash: 91677aa9196e065f40cebb6b50c95524f24161a45436469568954d2bc5d9903c
SHA3-384 hash: aef1ffd2822b9f8ec4315851f7dea399feae9f4bff32af36e9fa69a20f87acec27904c48f471d78615225c6729d2fd9c
SHA1 hash: ffd578bea2b7361954b4176b725343ad5b7740f8
MD5 hash: 3c2a2030b37abcf39f1ad1af970360cf
humanhash: asparagus-queen-sink-comet
File name:SOA-456612.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:782'336 bytes
First seen:2021-07-07 11:33:41 UTC
Last seen:2021-07-07 12:49:12 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'450 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:yXN13jUWOOaKYww0hb+Phi9iq6pgYRqZZ3QzKDUJrdZW98QkK3TUY/ludKman/gj:wrUWI0wZJplqZu2gT
Threatray 6'236 similar samples on MalwareBazaar
TLSH 76F48C9C3650B6DFC85BC977CAA81C24EB60B4B7930BD253A05712AD9D0E69BCF150F2
Reporter JAMESWT_WT
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
153
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SOA-456612.ace
Verdict:
Malicious activity
Analysis date:
2021-07-07 11:31:03 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/ecf0de27-9eeb-4c07-832f-fe3f47e0780b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/170169/
Detection(s):
SecuriteInfo.com.Trojan.Siggen14.27312.8923.24605.UNOFFICIAL
Create hunting rule

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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/272b825e-490c-43ff-8d8b-2e00cb6568a6
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/812819
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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 domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 445230 Sample: SOA-456612.exe Startdate: 07/07/2021 Architecture: WINDOWS Score: 100 38 Multi AV Scanner detection for domain / URL 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 9 other signatures 2->44 10 SOA-456612.exe 3 2->10         started        process3 file4 34 C:\Users\user\AppData\...\SOA-456612.exe.log, ASCII 10->34 dropped 48 Tries to detect virtualization through RDTSC time measurements 10->48 50 Injects a PE file into a foreign processes 10->50 14 SOA-456612.exe 10->14         started        17 SOA-456612.exe 10->17         started        19 SOA-456612.exe 10->19         started        21 SOA-456612.exe 10->21         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 Queues an APC in another process (thread injection) 14->64 23 explorer.exe 14->23 injected process8 dnsIp9 36 www.rulrr.info 45.88.202.115, 49780, 80 ANONYMIZEEpikNetworkCH Switzerland 23->36 46 System process connects to network (likely due to code injection or exploit) 23->46 27 svchost.exe 23->27         started        signatures10 process11 signatures12 52 Modifies the context of a thread in another process (thread injection) 27->52 54 Maps a DLL or memory area into another process 27->54 56 Tries to detect virtualization through RDTSC time measurements 27->56 30 cmd.exe 1 27->30         started        process13 process14 32 conhost.exe 30->32         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/91677aa9196e065f40cebb6b50c95524f24161a45436469568954d2bc5d9903c/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-07-06 14:36:31 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=sftxvkiznydf6qgoxnvvbskvetzecynekq3enflisvgsxrozsa6a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
169ccc389d18d44f4693c1de00f47e1b405f530ea90903b68c23523fe86592b7
Formbook
25644ff35da89545c702b633182c4ff1f649dd64c9c8249be9afe7090359d87d
Formbook
3d5d3eb3853ff82697da75cf6da041f61f72e06d686010a02d52ebaa63ddca65
Formbook
47795e947ae1864d553396ae7b191c6c507f2e5e50ced435018906c43f2364e5
Formbook
a2e99d0aabd8f0ad83b885eccf313563526a58b2da435bf34dad29294c712efe
Formbook
a3703cc485d2a99cfec122203ed2d7dd83274af8bd0b3bcfab3fd590dd5c308c
Formbook
af2f2ca290589cc5582a0da252931b616dc62a88f53a9f9e00e9663b3ea2548a
Formbook
b3c5b3cf581d15fcbacf67b4bdba199bfe7089704875746109b3206eb07b99e2
Formbook
d0116b0ea676a655b1d55a2b7a79fb2585c1d04803e9d1d6f9cd1da15f789138
Formbook
d869fa27fd5d5a229609f218572f1625820cb8176ba6c1616714e40d4e6b7897
Formbook
+ 6'226 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210707-eq95qxvkfe/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.currogpheasantshoot.com/bk2s/
Unpacked files
SH256 hash:
9edf1c4a917114023912e8859ddfbad96f75cef379e38be492db2e7a8af2bcff
MD5 hash:
50128c12d1684370428e286e6807844e
SHA1 hash:
ea2131d6ff85b7128b511e5fb351220200199a82
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/5db1b108-b6a0-428e-a202-571e16cdae4b/
Parent samples :
169ccc389d18d44f4693c1de00f47e1b405f530ea90903b68c23523fe86592b7
a3703cc485d2a99cfec122203ed2d7dd83274af8bd0b3bcfab3fd590dd5c308c
91677aa9196e065f40cebb6b50c95524f24161a45436469568954d2bc5d9903c
SH256 hash:
14a6fea569ba14fd0e164853c1b9f2e50f5043d9731913dc467e930178fd527e
MD5 hash:
0cc18a89bc2280485124dd91b77d6450
SHA1 hash:
ab125930c54ce66c2ed9f296b167e82d8986b813
Link:
https://www.unpac.me/results/5db1b108-b6a0-428e-a202-571e16cdae4b/
SH256 hash:
5bede9eedf6ae6df5a9d587c116c9583b31474c159c2b53486b000093cb3fde6
MD5 hash:
072eeac61b35d3f09edee4ff4f80f52d
SHA1 hash:
696fd9905a47e526470c2e234fef32f1ec1b74ad
Link:
https://www.unpac.me/results/5db1b108-b6a0-428e-a202-571e16cdae4b/
SH256 hash:
91677aa9196e065f40cebb6b50c95524f24161a45436469568954d2bc5d9903c
MD5 hash:
3c2a2030b37abcf39f1ad1af970360cf
SHA1 hash:
ffd578bea2b7361954b4176b725343ad5b7740f8
Link:
https://www.unpac.me/results/5db1b108-b6a0-428e-a202-571e16cdae4b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/91677aa9196e065f40cebb6b50c95524f24161a45436469568954d2bc5d9903c

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/170169/

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