MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 581490b0a14adee57f1862645ccf257d1db7720d31ba7a8b58756f1a11672223. 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
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SHA256 hash: 581490b0a14adee57f1862645ccf257d1db7720d31ba7a8b58756f1a11672223
SHA3-384 hash: e6122b0d932b1d6aa895151ee58de719e7995e6103f009da45d74cb1c6845fc6b5ddb43a9f5d69a658c4357e034a132b
SHA1 hash: 9ace857b6b03b77ae78cbeaec751dc7601760ce4
MD5 hash: cdb08aadb8cd8a9a4fa973c6ab77c6a9
humanhash: romeo-oxygen-pip-dakota
File name:cdb08aadb8cd8a9a4fa973c6ab77c6a9.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:501'248 bytes
First seen:2021-09-27 08:34:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:uyIF/OVFY9oPOkgP1Xkgh3KWycIBLe12fVjKTLysb754bGJ+x:uyIFsO9MGJ3/R0fVjKTWsX54SE
Threatray 9'647 similar samples on MalwareBazaar
TLSH T191B4F16EA02DA70FCDCFC3BFB060191D6A69E581B384D5489FA350F5655CB3A06898CF
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
160
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
cdb08aadb8cd8a9a4fa973c6ab77c6a9.exe
Verdict:
Suspicious activity
Analysis date:
2021-09-27 08:54:47 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/0324148c-a291-4f08-8617-83d7e47e98f9

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/191983/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1048-2.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e895e3bb-7a57-47a3-b507-78265687f003
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/858760
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
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)
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: 491193 Sample: JaUEDJDvt2.exe Startdate: 27/09/2021 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 JaUEDJDvt2.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\JaUEDJDvt2.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 JaUEDJDvt2.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 suamui.net 112.78.2.22, 49778, 80 ODS-AS-VNOnlinedataservicesVN Viet Nam 17->30 32 www.ngomen.online 162.213.250.2, 49760, 80 NAMECHEAP-NETUS United States 17->32 34 3 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 raserver.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:
n/a
Link:
https://mwdb.cert.pl/sample/581490b0a14adee57f1862645ccf257d1db7720d31ba7a8b58756f1a11672223/
Threat name:
ByteCode-MSIL.Trojan.Heracles
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Status:
Malicious
First seen:
2021-09-27 08:35:06 UTC
AV detection:
16 of 45 (35.56%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
043b45f9d94820186d7324c5f6e0fd7661de15ad29104fd43294e2f3839efa06
Formbook
1758a9b18032ce82f4e95249413ee1a8cbade1ef2cb773bc958502801f3af738
Formbook
49d82a6b19fe35893b419696bace48db225826ccfa73da61ca22f59f7f045406
Formbook
4c5887639c1dfcc0349690d98e9c8034029a6fa2f2e6bdbba96371bf23ce3301
Formbook
6c0e85b84f2b1dfdb580a168386ad91efe7f734066ff3a12a0d359fcb4711dca
Formbook
7024147e75938acd54b804df172c63b57c794e1980632c5f8190ae1e9d0da82a
Formbook
7162b4c9de1772aa721d26d185fd1b7e32a9de5c6ebfd86cab3ef0ed7561a837
Formbook
99b495e7c6df7f7bf887cd2d7f143e4103dfaf57990a0712bac7d33a2c6d6f0c
Formbook
af0af3ebf3ac231ad77dbe4cbfa0fb2d48312d4ca0b5431081046ab09aa3b552
Formbook
d39ec2fb7fa07bb6886173571262d2324d96b6e879ccc4f2cea46ece183e576a
Formbook
+ 9'637 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:if60 rat spyware stealer trojan
Link:
https://tria.ge/reports/210927-kg44cagbbq/
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.handelsbetriebposavec.com/if60/
Unpacked files
SH256 hash:
ade224c5af46b5e0b4a3650a5544b20e9dad7e6fa5aeeac0037e05d83fdcb177
MD5 hash:
42ae73cdadc87e07cc5e94668c52eb8e
SHA1 hash:
d1882744abbca9ac468f23867a264a5a2a49743f
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/29d412bc-c2ae-4468-98ee-ab93e7380625/
Parent samples :
d39ec2fb7fa07bb6886173571262d2324d96b6e879ccc4f2cea46ece183e576a
7162b4c9de1772aa721d26d185fd1b7e32a9de5c6ebfd86cab3ef0ed7561a837
99b495e7c6df7f7bf887cd2d7f143e4103dfaf57990a0712bac7d33a2c6d6f0c
49d82a6b19fe35893b419696bace48db225826ccfa73da61ca22f59f7f045406
1758a9b18032ce82f4e95249413ee1a8cbade1ef2cb773bc958502801f3af738
581490b0a14adee57f1862645ccf257d1db7720d31ba7a8b58756f1a11672223
680993e1220c8d918f192ae23c5c01b6357c58ad68b7cc59fa122c09b7b85cdd
SH256 hash:
840cec63be8491ee645e2a1c666be0b1f83840218238574c46a9992c1f5fcd2d
MD5 hash:
07e1fc4130a9fe0feed9c7edee905ea7
SHA1 hash:
3c95b7ab1daf8fdd73a3d056ddbcc828a1893dcf
Link:
https://www.unpac.me/results/29d412bc-c2ae-4468-98ee-ab93e7380625/
SH256 hash:
e49d278ae2c0b0dcec7cad7bea9e5d8883376b66a591a513fc60b126bec74e45
MD5 hash:
afcad3bc38dcb126e8c5df01a70a6ebb
SHA1 hash:
3772d61e3df6643e07c8b271a735c7c195e55561
Link:
https://www.unpac.me/results/29d412bc-c2ae-4468-98ee-ab93e7380625/
SH256 hash:
a984ca3a550ac26aa5b6a0f15162362392cd7520a42244b0e76210365ad4945d
MD5 hash:
8ad31fb4095ab83bec3a9694cacc6acf
SHA1 hash:
121e387fcc80b465a0c6d3d3a33960c982d848f7
Link:
https://www.unpac.me/results/29d412bc-c2ae-4468-98ee-ab93e7380625/
SH256 hash:
581490b0a14adee57f1862645ccf257d1db7720d31ba7a8b58756f1a11672223
MD5 hash:
cdb08aadb8cd8a9a4fa973c6ab77c6a9
SHA1 hash:
9ace857b6b03b77ae78cbeaec751dc7601760ce4
Link:
https://www.unpac.me/results/29d412bc-c2ae-4468-98ee-ab93e7380625/
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/581490b0a14adee57f1862645ccf257d1db7720d31ba7a8b58756f1a11672223

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
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 581490b0a14adee57f1862645ccf257d1db7720d31ba7a8b58756f1a11672223

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1589241/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/191983/

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