MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f1767a23201e1d5d234ead79f84de4a76f789aaa83f920b8cf4e0783f125d17c. 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 3 File information Comments
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SHA256 hash: f1767a23201e1d5d234ead79f84de4a76f789aaa83f920b8cf4e0783f125d17c
SHA3-384 hash: 75d1f2715473004910c306a2e62de099e1a9584b9e2e095fdee6b94f109947838b9438496f8629daeb98dce05f486c8d
SHA1 hash: 865c6e103cb41eeedf8dc9fcfa054baecb9e24d6
MD5 hash: 6cb158a72fe81919e8d4243df627903e
humanhash: nuts-freddie-sierra-london
File name:6cb158a72fe81919e8d4243df627903e.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:745'472 bytes
First seen:2021-11-22 13:37:47 UTC
Last seen:2021-11-22 15:49:12 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:z8OF+HRZjhvZf+upfQDmidsKH9M+lk8KzKRwS5Uz:KmQYSi5dMIEp
Threatray 11'423 similar samples on MalwareBazaar
TLSH T1C6F45B3032957396CC7A4BB40C6461C42737B6493D18D75DACC922DEAD62F6B8B237A3
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
123
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
20211122.doc
Verdict:
Malicious activity
Analysis date:
2021-11-22 18:16:35 UTC
Tags:
exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/b83eb847-47d9-4487-b8a0-9bec694d289c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Gathering data
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.25002.29679.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/619b9d3f94a88037d2fe6c09/reports/a09ca457-917b-4e61-9022-f29cb738c177/overview
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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fe274d43-4a67-4eae-bb60-d2d29090ee66
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/893863
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
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
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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: 526346 Sample: 5n5qSw8TXQ.exe Startdate: 22/11/2021 Architecture: WINDOWS Score: 100 37 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 7 other signatures 2->43 10 5n5qSw8TXQ.exe 3 2->10         started        process3 file4 33 C:\Users\user\AppData\...\5n5qSw8TXQ.exe.log, ASCII 10->33 dropped 53 Tries to detect virtualization through RDTSC time measurements 10->53 14 5n5qSw8TXQ.exe 10->14         started        signatures5 process6 signatures7 55 Modifies the context of a thread in another process (thread injection) 14->55 57 Maps a DLL or memory area into another process 14->57 59 Sample uses process hollowing technique 14->59 61 Queues an APC in another process (thread injection) 14->61 17 explorer.exe 14->17 injected process8 process9 19 rundll32.exe 17->19         started        signatures10 45 Self deletion via cmd delete 19->45 47 Modifies the context of a thread in another process (thread injection) 19->47 49 Maps a DLL or memory area into another process 19->49 51 Tries to detect virtualization through RDTSC time measurements 19->51 22 explorer.exe 2 147 19->22         started        25 cmd.exe 1 19->25         started        27 explorer.exe 1 147 19->27         started        29 explorer.exe 19->29         started        process11 dnsIp12 35 192.168.2.1 unknown unknown 22->35 31 conhost.exe 25->31         started        process13
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f1767a23201e1d5d234ead79f84de4a76f789aaa83f920b8cf4e0783f125d17c/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-22 13:38:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
32
AV detection:
18 of 27 (66.67%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
241582074a493ed1b28fa87dcab270e4057eac6fbe0171e14dce9f99c601f2b3
Formbook
314bd86207357fc3a95e237d2728a03369d2707a9c6adc333d6a5398bfc80767
Formbook
3204a354d2ccb2058144116ede288693583a38b0c84b41903c2ceaebd19e9348
Formbook
4253f88eb5e931720c16e56f49babfbf8db93eaa8b6f85146cc2d690aee2b9d2
Formbook
5824f8d2a1ca44f7fb1aa815930628448e183d6f9344a3f289c8a56953a52afb
Formbook
5fd22c8bf1e7e06ccaa6ebc23410086fe0e3bc30b1613cd6ee734f280c0d6979
Formbook
6cbe56928a6ebd559194c8ca4537521d2485a728598d679d2d70de7052cb1501
Formbook
84c2b9e7449d2cf1ec1d43b13a9163e6fe355e3f8d301b34b7930d24f916725a
Formbook
a33cbeb94697eb2355ea92f44f065e52461adaf621ad548d066dc73d6d76eeb9
Formbook
a75c86c3baabf9dea3dd33fde9e53eb91608ba0466d947ac6f9506de45d099ea
Formbook
+ 11'413 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:fa83 rat spyware stealer trojan
Link:
https://tria.ge/reports/211122-qxefhsaeh8/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.nshocam.com/fa83/
Unpacked files
SH256 hash:
180b50344d1b6b506d9832816f7a88ec8a04afe44cc114c1aff99bffe3868bf8
MD5 hash:
85425e1cd507aaf0dd799778f8fe432d
SHA1 hash:
1a26201e8f44fa3efa8b4e78b843445f40616447
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/aef7e8e1-e2d8-44d3-9163-1211a1b4daa6/
Parent samples :
a75c86c3baabf9dea3dd33fde9e53eb91608ba0466d947ac6f9506de45d099ea
84c2b9e7449d2cf1ec1d43b13a9163e6fe355e3f8d301b34b7930d24f916725a
f1767a23201e1d5d234ead79f84de4a76f789aaa83f920b8cf4e0783f125d17c
ed2f68ce6d715976cfad3c41991685f1a190713626aea55c454da90682aa7ccb
6876e8698f67c2b477c89b891199d3485051a14f52284f39e35a8e8057f53fae
fd7d542aa6e922020e6fb15fc151be03a967ca01b09c75cd267302b873f1a79c
1409ef2f3a8f71bcac7c0e335380f5a804535dba5dca598429298a53aaec9e04
039cb9fe74c15a9ef07f795f41f1a05bf2adad49566c866f94befed5815503e4
54562896613b429de9564f501b6d277537a57dc5d0a9bbaa5260e3ffc055a543
84f01d9761a5e76774cac6a3a21c50e3b653f725276d32ea3a10d7ec00e14c99
4ae2cc851969d2bf66879df62acb3860edf32e3224b3a81460fc84ca476cf8e4
a5ad2e2a940e084ddec9db413a6c44a30b6029c8cf2bafb1320d67b1c60280e3
3a536da54a1cdf554d1fe3301c4a7936f889a7c86e166cb081429450e97cd4f6
SH256 hash:
8af228e78d2759989b883573602596369d1de404c3369d72d5068fd68a78ec83
MD5 hash:
a0e205a054072685f6adf07a25cc596b
SHA1 hash:
4db6dc6cad4514fdfc423096712b2b32ac1fca91
Link:
https://www.unpac.me/results/aef7e8e1-e2d8-44d3-9163-1211a1b4daa6/
SH256 hash:
f30ca642597c059f9dbcc6cfea27687245fbcaf5456be0b7a4528d946f3a0a05
MD5 hash:
0f6349011cf5446131faf0cadbace87b
SHA1 hash:
0cd48b5cb5a0ca095043c333c9002ba5273e92e8
Link:
https://www.unpac.me/results/aef7e8e1-e2d8-44d3-9163-1211a1b4daa6/
SH256 hash:
f1767a23201e1d5d234ead79f84de4a76f789aaa83f920b8cf4e0783f125d17c
MD5 hash:
6cb158a72fe81919e8d4243df627903e
SHA1 hash:
865c6e103cb41eeedf8dc9fcfa054baecb9e24d6
Link:
https://www.unpac.me/results/aef7e8e1-e2d8-44d3-9163-1211a1b4daa6/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/f1767a23201e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/f1767a23201e1d5d234ead79f84de4a76f789aaa83f920b8cf4e0783f125d17c

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:pe_imphash
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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 f1767a23201e1d5d234ead79f84de4a76f789aaa83f920b8cf4e0783f125d17c

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1793076/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/208189/

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