MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f03c40561ba64d0797bcf79bfefd015c8d9ca010f1bd67b3d27ffab584a9911e. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f03c40561ba64d0797bcf79bfefd015c8d9ca010f1bd67b3d27ffab584a9911e
SHA3-384 hash: 39a490c62b4acd52460aec9a65c982a298628fb5d21b4668b20da4842d70594a2d99bd8347601b5daf86952d0f0fe71f
SHA1 hash: 6691440f800cef981aa94b739f70b9d7c87fe465
MD5 hash: 9eebb00c7038e89f5b8d2caca13d2ddf
humanhash: crazy-bluebird-echo-equal
File name:9eebb00c7038e89f5b8d2caca13d2ddf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:545'792 bytes
First seen:2021-09-22 12:08:26 UTC
Last seen:Never
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:lgVpmtiK5oBzfhaOCv+ZWPhpWaB6cg/tpG7VdyQ:y+FoBzh0v+ZYL+DG7Hy
Threatray 9'499 similar samples on MalwareBazaar
TLSH T1E5C42239E3AC8775CE784BBD11A101D44BB0B1C6BF07FA589B85B089ED1B7914026DEE
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
215
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
9eebb00c7038e89f5b8d2caca13d2ddf.exe
Verdict:
Suspicious activity
Analysis date:
2021-09-22 12:21:12 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/72f80dc0-edae-4c4d-9d66-723ec14d5f8a

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/190146/
Detection(s):
SecuriteInfo.com.Variant.MSILHeracles.26929.3556.7472.UNOFFICIAL
Create hunting rule

Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0e2c0fc9-c5b2-41bb-b9fc-6a727c4efb97
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/856029
Signature
.NET source code contains potential unpacker
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 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: 488460 Sample: cO3LF4ms98.exe Startdate: 22/09/2021 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 cO3LF4ms98.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\cO3LF4ms98.exe.log, ASCII 10->28 dropped 54 Tries to detect virtualization through RDTSC time measurements 10->54 56 Injects a PE file into a foreign processes 10->56 14 cO3LF4ms98.exe 10->14         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 17 explorer.exe 14->17 injected process8 dnsIp9 30 absolutadventures.com 199.34.228.77, 49809, 80 WEEBLYUS United States 17->30 32 www.cft8j.com 17->32 34 www.absolutadventures.com 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 explorer.exe 17->21         started        signatures10 process11 signatures12 46 Self deletion via cmd delete 21->46 48 Modifies the context of a thread in another process (thread injection) 21->48 50 Maps a DLL or memory area into another process 21->50 52 Tries to detect virtualization through RDTSC time measurements 21->52 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f03c40561ba64d0797bcf79bfefd015c8d9ca010f1bd67b3d27ffab584a9911e/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-22 09:16:24 UTC
AV detection:
18 of 28 (64.29%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
17dba25e41a7c193a9abafca9194574ff970d56c1defec9a1d4fed04590d9ec4
Formbook
6bcdb1b6795c22308aee5d390cfae409d21a3238a304466dd54c1dee43570afd
Formbook
6c0e85b84f2b1dfdb580a168386ad91efe7f734066ff3a12a0d359fcb4711dca
Formbook
a99b696e8ac16303843b26c95c982d5be9b9fd657d843937cc586c9a8dc29b83
Formbook
af0af3ebf3ac231ad77dbe4cbfa0fb2d48312d4ca0b5431081046ab09aa3b552
Formbook
bb21e5cc104a482d8d806a79b75f20781bde73dfb3ac59d6cd58fed12e9757e5
Formbook
d2d6a8c31acdd92eb9a005e2fac8838a382ab0425fc01bc88616bda185ab7b4c
Formbook
d39ec2fb7fa07bb6886173571262d2324d96b6e879ccc4f2cea46ece183e576a
Formbook
ecacac4e9f514e780ff7124b6fdd97251dcec9947d5815166b2b57d2a41ddf0e
Formbook
fc2480dee0caf0759cb11b01bea00a2588a48267c65ea4e81c66ba2a350fc177
Formbook
+ 9'489 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:fzsg rat spyware stealer trojan
Link:
https://tria.ge/reports/210922-pbghbafagn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.grouplmc.com/fzsg/
Unpacked files
SH256 hash:
83b90d18ad1250a4604f1417f23754c65f834f8c7f1fd29b9f2f634315203fd3
MD5 hash:
4a78ff31505436877b5f3e8378e9baf7
SHA1 hash:
1155e26225d3aae4d49a0645e452d22337f5baa0
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/305cafac-48b1-4719-ab43-a9e42799500c/
Parent samples :
f03c40561ba64d0797bcf79bfefd015c8d9ca010f1bd67b3d27ffab584a9911e
54507294252cb270a6b1944f838eb0428d87fbcfaf05e887126d5754af3ec1fa
83c49019ef9b9520235af445b484a3b3f275729cd92bb960a9264d6704190329
7e647d064a55731e15f05904b636037d2339e84ca425f53cf752004cd8797468
62ee412123d6e8832cebbf33d84d5695adc4fc2d66f0ec7222d9ccd5f21d4866
3c5d2a990e487ad59a140909b2e6047494467b163f6696be5e247f644e4c3210
b877e6f41d83c546f056fa7f88b5f323d944616a9919025e71971d034b56b592
SH256 hash:
5924556e82aef54483403dbf40e2c767d3caa1a8362a337977d448bf18eb643f
MD5 hash:
479c88caa413ee2b7d13cdd5b0c7bd60
SHA1 hash:
f7c39211046a96116ce984fd554276dfdbf8dc5e
Link:
https://www.unpac.me/results/305cafac-48b1-4719-ab43-a9e42799500c/
SH256 hash:
354ce3f0f142aced4efd0d78a8d8579ca7953715b507dc225d485df7dd1375d1
MD5 hash:
83a69585ddc154a9b470684382af305b
SHA1 hash:
d9e226afc9753543cb71c51a650912e69cf13dcd
Link:
https://www.unpac.me/results/305cafac-48b1-4719-ab43-a9e42799500c/
SH256 hash:
cac8b347040a359c02ae5e658d3d76230c7dd7eb33505605ed0b9bc49ff268c7
MD5 hash:
71a894ff252c767b80d65ab1e54fda2b
SHA1 hash:
bcc4ff628585ca28b8b0f2c30e63049b910d4d49
Link:
https://www.unpac.me/results/305cafac-48b1-4719-ab43-a9e42799500c/
SH256 hash:
f03c40561ba64d0797bcf79bfefd015c8d9ca010f1bd67b3d27ffab584a9911e
MD5 hash:
9eebb00c7038e89f5b8d2caca13d2ddf
SHA1 hash:
6691440f800cef981aa94b739f70b9d7c87fe465
Link:
https://www.unpac.me/results/305cafac-48b1-4719-ab43-a9e42799500c/
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/f03c40561ba64d0797bcf79bfefd015c8d9ca010f1bd67b3d27ffab584a9911e

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
Create hunting rule
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.

Web download

Formbook

Executable exe f03c40561ba64d0797bcf79bfefd015c8d9ca010f1bd67b3d27ffab584a9911e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1599299/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/190146/

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