MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a9915e261e819e5388755f6e20a93b55c096eb7b81b930c7212a77be734a97b2. 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
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SHA256 hash: a9915e261e819e5388755f6e20a93b55c096eb7b81b930c7212a77be734a97b2
SHA3-384 hash: 9215eab5175f54e10b53170446b290b62820d15372f61b09480a0adee6d913c8d9e7eba744221ab2b949f59d13f20f1d
SHA1 hash: cf29d5bd872939433b7fae902f4a946dc9a90111
MD5 hash: 059ca05759623fbfbcaee71704460455
humanhash: batman-comet-arkansas-thirteen
File name:triage_dropped_file
Download: download sample
Signature Formbook
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File size:530'944 bytes
First seen:2022-04-07 14:36:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:MelxdE0ZQg7AwP/sPywLIgvY9bFWDiF4t8xKgEefPFX2IBahS:zESsPFLW9bFWy4tQTEefPFX2IB8S
Threatray 14'717 similar samples on MalwareBazaar
TLSH T1A5B4122CFAFBCD16C6D80B36D5D5081857B1D74D6163EB0E638D6AE90D133A70E82A93
File icon (PE):PE icon
dhash icon b2cccccce8b2b28a (21 x AgentTesla, 14 x Formbook, 11 x SnakeKeylogger)
Reporter malwarelabnet
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
286
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
triage_dropped_file
Verdict:
Malicious activity
Analysis date:
2022-04-07 20:18:32 UTC
Tags:
formbook
Link:
https://app.any.run/tasks/510a9c7e-08b4-497d-99ba-cc1051d394d8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/261746/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Stealer.23680.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control.exe fareit obfuscated packed
Link:
https://www.filescan.io/uploads/624ef6d7cccdcb9947249f23/reports/f51002e6-1b82-4fc8-92ec-a22f11c5097a/overview
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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1ca12a05-1cb4-4131-9a5e-b6fb9041cd45
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/972475
Signature
.NET source code contains potential unpacker
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
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 604959 Sample: triage_dropped_file Startdate: 07/04/2022 Architecture: WINDOWS Score: 100 34 Found malware configuration 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 Antivirus detection for URL or domain 2->38 40 8 other signatures 2->40 10 triage_dropped_file.exe 3 2->10         started        process3 file4 30 C:\Users\user\...\triage_dropped_file.exe.log, ASCII 10->30 dropped 52 Tries to detect virtualization through RDTSC time measurements 10->52 14 triage_dropped_file.exe 10->14         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 14->54 56 Maps a DLL or memory area into another process 14->56 58 Sample uses process hollowing technique 14->58 60 Queues an APC in another process (thread injection) 14->60 17 explorer.exe 14->17 injected process8 dnsIp9 32 www.liumilac.com 17->32 42 System process connects to network (likely due to code injection or exploit) 17->42 21 wlanext.exe 17->21         started        24 autochk.exe 17->24         started        signatures10 process11 signatures12 44 Self deletion via cmd delete 21->44 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 26 cmd.exe 1 21->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/a9915e261e819e5388755f6e20a93b55c096eb7b81b930c7212a77be734a97b2/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-04-07 14:36:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
15 of 26 (57.69%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vgiv4jq6qgpfhcdvl5xcbkj3kxajn233qg4tbrzbfj33442ks6za._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
043b45f9d94820186d7324c5f6e0fd7661de15ad29104fd43294e2f3839efa06
Formbook
09e3f4ef9fdeaf20b19ba8e36c342375f61458f226ccc5a857b055321bc5ab89
Formbook
39992920b2ad02ba761413d61b8c4b7eef23827d26cb50b4236f97c5af7d4d33
Formbook
5fd22c8bf1e7e06ccaa6ebc23410086fe0e3bc30b1613cd6ee734f280c0d6979
Formbook
6bd24ce0a16599d97686146c6a822023f0f4896fcee914eed9a4e45a7e46b864
Formbook
c6cbe14f336bc97cc4bf2db682cc36efc1b371f6cc45509ee347c29348903676
Formbook
e22a659b73048b31aba79fce8de22ddd5a287494b763fec8d5779869dfebbf31
Formbook
fd47fb1d9ae6d4fa2d64afcc600498076f0f8803cb134782723c4a8bd0ae81b4
Formbook
ff3e94ded64b43f620ba549db99baa31abdd763209b60f7c9fc884b82cfac6d3
Formbook
ffc1923acd60afc54f768c2f509edea31a11f82f2a1873f4bc12f69c73f9de71
Formbook
+ 14'707 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:s20a rat spyware stealer trojan
Link:
https://tria.ge/reports/220407-rykjlahdg3/
Behaviour
Enumerates system info in registry
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
Unpacked files
SH256 hash:
e11871df824c3130e35f2c94d672404e18ebefddf3172d166f2e640ad3686c73
MD5 hash:
4379771ccd9b927712ef2505214161df
SHA1 hash:
6636b7b80e279de67c60b52277f566463afebf8e
Link:
https://www.unpac.me/results/bcd99999-12d6-47bc-bfa4-cb2edea27150/
SH256 hash:
608488d334c8f702e2dc140c87414b8a5a05d3d3ddcb31ab840ac549fbd683bb
MD5 hash:
fa4da8554318e9395677a1c3df1509db
SHA1 hash:
246f88056b9069970f1bf112e6d6467ca2b8881e
Link:
https://www.unpac.me/results/bcd99999-12d6-47bc-bfa4-cb2edea27150/
SH256 hash:
a9915e261e819e5388755f6e20a93b55c096eb7b81b930c7212a77be734a97b2
MD5 hash:
059ca05759623fbfbcaee71704460455
SHA1 hash:
cf29d5bd872939433b7fae902f4a946dc9a90111
Link:
https://www.unpac.me/results/bcd99999-12d6-47bc-bfa4-cb2edea27150/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a9915e261e819e5388755f6e20a93b55c096eb7b81b930c7212a77be734a97b2

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
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Rule name:Skystars_Malware_Imphash
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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/261746/

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