MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6420ceb34588ec91292aa6fcaa2b77b99a4b492a009f51a409fd240d138c7856. 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 2 File information Comments
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SHA256 hash: 6420ceb34588ec91292aa6fcaa2b77b99a4b492a009f51a409fd240d138c7856
SHA3-384 hash: 412827027ffbef256d16b7792f22a8646d2942313110cc08561bbe55a4f25beeeb288f2865f9d744d8ff454636bb5778
SHA1 hash: b72a45ff73af01d8b3e2fa8cd808adc3d32aafbb
MD5 hash: f284df40d295f75659c24cd2b9b23c69
humanhash: michigan-black-table-juliet
File name:f284df40d295f75659c24cd2b9b23c69.exe
Download: download sample
Signature Formbook
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File size:871'936 bytes
First seen:2022-02-09 16:16:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:1zvbtvcM/9lqvlvHLFWxN5EvpmOgO4fGX8Gj7geFb+Sea9:Rbtvf1lqvlvHEx4v8bAP86Zea9
Threatray 13'462 similar samples on MalwareBazaar
TLSH T1CE05BE2F086E123AC5BCDB715884CE1FB992CD663537A41D29863DDB25367B270D222F
File icon (PE):PE icon
dhash icon 68686cdcc6a6d2e1 (13 x AgentTesla, 5 x Formbook, 4 x AZORult)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
217
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/239723/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.25375.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/6203e90b9c257bc16263cff7/reports/d4761d10-ca62-4780-93f8-8215ba30d133/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/fb7c781c-bcda-4731-94ab-2b66620d6a57
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/937050
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
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
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: 569538 Sample: ouaDi26PhE.exe Startdate: 09/02/2022 Architecture: WINDOWS Score: 100 37 www.40daysfor40nights.com 2->37 39 40daysfor40nights.com 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 Yara detected AntiVM3 2->45 47 4 other signatures 2->47 11 ouaDi26PhE.exe 3 2->11         started        signatures3 process4 file5 35 C:\Users\user\AppData\...\ouaDi26PhE.exe.log, ASCII 11->35 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 15 ouaDi26PhE.exe 11->15         started        18 ouaDi26PhE.exe 11->18         started        20 ouaDi26PhE.exe 11->20         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 65 Queues an APC in another process (thread injection) 15->65 22 explorer.exe 15->22 injected process9 process10 24 explorer.exe 22->24         started        27 autoconv.exe 22->27         started        signatures11 49 Self deletion via cmd delete 24->49 51 Modifies the context of a thread in another process (thread injection) 24->51 53 Maps a DLL or memory area into another process 24->53 55 Tries to detect virtualization through RDTSC time measurements 24->55 29 cmd.exe 1 24->29         started        31 explorer.exe 2 159 24->31         started        process12 process13 33 conhost.exe 29->33         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/6420ceb34588ec91292aa6fcaa2b77b99a4b492a009f51a409fd240d138c7856/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-02-09 12:12:02 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
23 of 27 (85.19%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
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Similar samples:
6f2d71733b4bcab1a04a40168f2900963a9f65c0081a6f1d1832d18b6bae16bb
Formbook
7b73a6d63c4835022e71c1630ae42dbeaadc566532b1b85757b385246e19fcbe
Formbook
8c16cbf4df8137db774d2cb97cc386b052ca7a0b77ee1572fe7a5fc9a5a22ae0
Formbook
ce931ede894759cdd518d9dd8f4a9888b7fa3656bd6fa3bc0b66514b985efb5d
Formbook
d0ce91945a10abde8e7569759e78430c80fb8fa42589dfaccf565cf6895f8846
Formbook
d5f77ba2b2ad58cfad5ae3111994ad0f889967e6d4f67ecb9cedf1b8f10a6149
Formbook
e76b1a4f9aa3787900758ce81367f40587ca3d6a3a7ab6d1d02537e12cb10c37
Formbook
f556af7cd24cc02eba24924d19c42966a1a98b84dfabd78c523c55f492d54acd
Formbook
f61f02c5be2ef5988f474ffc148b099942ab8582cd4aac8b3c991436f6230592
Formbook
+ 13'452 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:qugo rat spyware stealer trojan
Link:
https://tria.ge/reports/220209-trd5caahd7/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Unpacked files
SH256 hash:
fd1cb547ff1500174018e7ab3eea419a830d951b2d43ae31d3828d2a2da6a63d
MD5 hash:
4bf2f0d3497ff405174d0c95e000f829
SHA1 hash:
d7e7f210d1f854b3e99ced28e977bc0cb4e49b33
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/0acd4ce1-7914-4840-a0cd-431ef575f4bf/
Parent samples :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 hash:
93bb9c00f872249ede91fdd37c1348771ee63894ad27571f1fd7414935c140b2
MD5 hash:
8f60a565e14e5669650677e12836f8f9
SHA1 hash:
f903e7790fee02321bccc5a1b0d6fba4d76b8c41
Link:
https://www.unpac.me/results/0acd4ce1-7914-4840-a0cd-431ef575f4bf/
SH256 hash:
0cc119786b104cf0aa261a208bf38802b339774ff3d7a42afcd8329d2d7d21c9
MD5 hash:
263b5190f7ac42d83c756dcdf38147bb
SHA1 hash:
78f419fe3936ed7d603706c47230cd3e6ff79ffe
Link:
https://www.unpac.me/results/0acd4ce1-7914-4840-a0cd-431ef575f4bf/
SH256 hash:
6420ceb34588ec91292aa6fcaa2b77b99a4b492a009f51a409fd240d138c7856
MD5 hash:
f284df40d295f75659c24cd2b9b23c69
SHA1 hash:
b72a45ff73af01d8b3e2fa8cd808adc3d32aafbb
Link:
https://www.unpac.me/results/0acd4ce1-7914-4840-a0cd-431ef575f4bf/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/6420ceb34588/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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.

Web download

Formbook

Executable exe 6420ceb34588ec91292aa6fcaa2b77b99a4b492a009f51a409fd240d138c7856

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1986800/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/239723/

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