MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 71b4619d3dd4bb8e3619a2ebfe39f71c728d0d723992e44c8564dab8e8035b28. 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 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 71b4619d3dd4bb8e3619a2ebfe39f71c728d0d723992e44c8564dab8e8035b28
SHA3-384 hash: 57beb8d41dd62ff1f55fb3177c5448b0feec2074612b8e8d653634dd4778467e611128176a5f934e406eb9eb751cf840
SHA1 hash: a731381dbb42c380bcb87b8af92fdd3d8a3fb00b
MD5 hash: b453431bd73d0333530edd13f38089b4
humanhash: uncle-florida-march-bulldog
File name:b453431bd73d0333530edd13f38089b4
Download: download sample
Signature Formbook
Create hunting rule
File size:487'424 bytes
First seen:2021-11-29 17:29:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:Yjw9MtWM3wF69tRu1gFJz7BRF/GlbwGGGBxmQ95RQXkb:L9MPAFNgFhFe/h37RAk
Threatray 11'762 similar samples on MalwareBazaar
TLSH T1AAA4016A67948B2BD1B913F9A575FF3907758EA0B912D308AEC078DB3E327410825793
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
105
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b453431bd73d0333530edd13f38089b4
Verdict:
Suspicious activity
Analysis date:
2021-11-29 17:30:02 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/daebd791-845d-443d-96aa-a4b8e78a3387

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS request
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61a50e1dbbfd2af97cba712d/reports/b7bad2b8-3adc-4afc-8ee1-bcd86ae71f9e/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0aa9629d-75ec-4aeb-a119-17c9d387d999
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/898088
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
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 dnsIp2 2 Behavior Graph ID: 530566 Sample: 5hXkMhm5Xu Startdate: 29/11/2021 Architecture: WINDOWS Score: 100 34 www.366466.com 2->34 46 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 7 other signatures 2->52 11 5hXkMhm5Xu.exe 3 2->11         started        15 explorer.exe 84 2->15         started        signatures3 process4 file5 32 C:\Users\user\AppData\...\5hXkMhm5Xu.exe.log, ASCII 11->32 dropped 62 Tries to detect virtualization through RDTSC time measurements 11->62 64 Injects a PE file into a foreign processes 11->64 17 5hXkMhm5Xu.exe 11->17         started        signatures6 process7 signatures8 38 Modifies the context of a thread in another process (thread injection) 17->38 40 Maps a DLL or memory area into another process 17->40 42 Sample uses process hollowing technique 17->42 44 Queues an APC in another process (thread injection) 17->44 20 explorer.exe 17->20 injected process9 process10 22 help.exe 20->22         started        signatures11 54 Self deletion via cmd delete 22->54 56 Modifies the context of a thread in another process (thread injection) 22->56 58 Maps a DLL or memory area into another process 22->58 60 Tries to detect virtualization through RDTSC time measurements 22->60 25 explorer.exe 1 149 22->25         started        28 cmd.exe 1 22->28         started        process12 dnsIp13 36 192.168.2.1 unknown unknown 25->36 30 conhost.exe 28->30         started        process14
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/71b4619d3dd4bb8e3619a2ebfe39f71c728d0d723992e44c8564dab8e8035b28/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-19 04:19:51 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
02a852aaa839120b0e557629b63a754cb302ebe2f11275d3e4fb68f4f1e70532
Formbook
26b24cfe3b0bb84b26fc83ce689b74728ac61f32391772dcc76eab04cc7042b5
Formbook
415d8e7a309e0e7ea9cec8bd06f9170b0dc15aca3a553ff6fa7f6726997800a3
Formbook
534bf82b9bfdae2bd4afd8a8441237b69d926a5bf4d250f076b47b1377305f8f
Formbook
5fd22c8bf1e7e06ccaa6ebc23410086fe0e3bc30b1613cd6ee734f280c0d6979
Formbook
7930bf3f1be9acdf429e2433aa7d0c36985d9a97e580571fee1ffe8cbc0d8f5a
Formbook
974a753b6be631d76aa556b3eb8c6638783a410bd0fbf6e4982a4ae41cf8c305
Formbook
9f59a9c7a38d8031c5b0829da6c4c10951b1de67adada4f567449d4b6ea8d83c
Formbook
c63cb761da677849b8382eb1d926569f00a04d57f2c789b63e7f2eb2e368a00c
Formbook
+ 11'752 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:nqm8 rat spyware stealer trojan
Link:
https://tria.ge/reports/211129-v2569aceam/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.mmsite.site/nqm8/
Unpacked files
SH256 hash:
a9a7faeb7d569598c75f663797622a5486f313dd52b1fa0f530aaad354c49574
MD5 hash:
9f0072037109bbbab69a4994a5ddc493
SHA1 hash:
65ba062434fbd0511f885251fef155bc2dd4e1ee
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/418bacea-1856-411c-9799-1516443834af/
Parent samples :
02a852aaa839120b0e557629b63a754cb302ebe2f11275d3e4fb68f4f1e70532
79b330be28c56e7a86067b9c5300213b939a5f2f6e323e5cf76f8b1c42afe9c5
7930bf3f1be9acdf429e2433aa7d0c36985d9a97e580571fee1ffe8cbc0d8f5a
71b4619d3dd4bb8e3619a2ebfe39f71c728d0d723992e44c8564dab8e8035b28
e4b24664fbf0d04e761c36b6dcfb06c1f301b81a5f4c7c4696b2db972f20708a
SH256 hash:
cc5c5860e83b708cd158454165cbeb714767119946049de5aa7677685be75c14
MD5 hash:
83cbea4dec6e5b64a85ee9b6f9ff7598
SHA1 hash:
5c1d12b792c32ba73b7bf2634da5e4d9fbcd7d4e
Link:
https://www.unpac.me/results/418bacea-1856-411c-9799-1516443834af/
SH256 hash:
436b508a66c98616a03d2f1c196ee32cb47db236f45d1c2677ce37d1e2406907
MD5 hash:
61f6969ad5ab6d9b72e319bab6b6e841
SHA1 hash:
47c5808fb3ca45d3ed2f42b54882b86603f24fae
Link:
https://www.unpac.me/results/418bacea-1856-411c-9799-1516443834af/
SH256 hash:
71b4619d3dd4bb8e3619a2ebfe39f71c728d0d723992e44c8564dab8e8035b28
MD5 hash:
b453431bd73d0333530edd13f38089b4
SHA1 hash:
a731381dbb42c380bcb87b8af92fdd3d8a3fb00b
Link:
https://www.unpac.me/results/418bacea-1856-411c-9799-1516443834af/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/71b4619d3dd4/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/71b4619d3dd4bb8e3619a2ebfe39f71c728d0d723992e44c8564dab8e8035b28

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 71b4619d3dd4bb8e3619a2ebfe39f71c728d0d723992e44c8564dab8e8035b28

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1833029/

Comments


Avatar
zbet commented on 2021-11-29 17:29:11 UTC

url : hxxp://nongbua.nfe.go.th/xhfrUmkmIwdYVe8.exe