MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 557260d94ea20dcd980632dbc467735f881adf78037f64198931427a2d3a4347. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
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SHA256 hash: 557260d94ea20dcd980632dbc467735f881adf78037f64198931427a2d3a4347
SHA3-384 hash: 61e0635811456580b1410ae65866ed59ad0eadaf568e11e794debdfb5b51487e67a9f000a5c6fda8b605080d9b787f51
SHA1 hash: d70eeeb4e05437232ae9e23e564ae730ac7222b9
MD5 hash: a71433b1d8cde8a8acbac55fc0405398
humanhash: potato-wisconsin-don-moon
File name:a71433b1d8cde8a8acbac55fc0405398.exe
Download: download sample
Signature Formbook
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File size:1'238'016 bytes
First seen:2021-11-15 09:18:58 UTC
Last seen:2021-11-15 11:13:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:/8Q+dQaELb1Ai6Vj0OuQMHzgk9El4/HjZ8GNba5ntDYYfvTknSn+fj/kHhTDB:UQPQVYOUgk944/H2t9Y2TkngITmr
TLSH T1A2455B123A55C911C0AA7237CDEF442447FDBDC1BE93DB2A7EAA33BC55223AA08451DD
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
127
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/205862/
Detection(s):
SecuriteInfo.com.W32.MSIL_Kryptik.DWR.genEldorado.16306.17736.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP 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/6192260a3edf00a722d51338/reports/522ee5d5-7027-4126-9c59-43abce97f1f7/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/306d8fbc-5a29-4ae2-8390-b7fe4950aca9
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/889252
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
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 domain / URL
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 signatures2 2 Behavior Graph ID: 521727 Sample: i1p8HQ9DMl.exe Startdate: 15/11/2021 Architecture: WINDOWS Score: 100 32 Multi AV Scanner detection for domain / URL 2->32 34 Found malware configuration 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 6 other signatures 2->38 10 i1p8HQ9DMl.exe 3 2->10         started        process3 file4 30 C:\Users\user\AppData\...\i1p8HQ9DMl.exe.log, ASCII 10->30 dropped 48 Tries to detect virtualization through RDTSC time measurements 10->48 50 Injects a PE file into a foreign processes 10->50 14 i1p8HQ9DMl.exe 10->14         started        signatures5 process6 signatures7 52 Modifies the context of a thread in another process (thread injection) 14->52 54 Maps a DLL or memory area into another process 14->54 56 Sample uses process hollowing technique 14->56 58 Queues an APC in another process (thread injection) 14->58 17 explorer.exe 14->17 injected process8 process9 19 cmd.exe 17->19         started        signatures10 40 Self deletion via cmd delete 19->40 42 Modifies the context of a thread in another process (thread injection) 19->42 44 Maps a DLL or memory area into another process 19->44 46 Tries to detect virtualization through RDTSC time measurements 19->46 22 cmd.exe 1 19->22         started        24 explorer.exe 2 152 19->24         started        26 explorer.exe 1 129 19->26         started        process11 process12 28 conhost.exe 22->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/557260d94ea20dcd980632dbc467735f881adf78037f64198931427a2d3a4347/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-11-15 09:19:08 UTC
AV detection:
19 of 27 (70.37%)
Threat level:
  5/5
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:cy88 rat spyware stealer trojan
Link:
https://tria.ge/reports/211115-k971pshgc9/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.jamesobrien.school/cy88/
Unpacked files
SH256 hash:
b9da25075c3e27a81cdf9207fbd574f974b87ec847bfcdef59d8bd8fade072e0
MD5 hash:
98574b67657a1644171b3038cfd9561b
SHA1 hash:
6fcd3a68800350b0152f995b8e79c15b09eb44d5
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/f0740830-f971-49eb-a5bc-b0350b742a70/
Parent samples :
a1c782659ddb9232f1d6b0619efe815b0fb61d6c4524e28dbfb3bae4b449738a
6bce7b4a9dc4b092b2940ee941b8defdc5d60c56a57b2621aa3ac6b957e3cdfd
557260d94ea20dcd980632dbc467735f881adf78037f64198931427a2d3a4347
ea074d89ce669e6d00d54a7fce58a5394a075611740346df298cb55926ac9a55
55e7f104009ae1f8c59a850b57d7f660dbb8dc7cdeeadc7c1c396294bb656ac0
4253f88eb5e931720c16e56f49babfbf8db93eaa8b6f85146cc2d690aee2b9d2
SH256 hash:
86fe170cc6dd3a576807c1192a06ead68bf210f9ccd14f1a81d4f44c2dbcc25f
MD5 hash:
bf5c170790a9378101dbc312303925e3
SHA1 hash:
bddaf21c02ba5cec7c4dfd1b1f289e23714a8ba8
Link:
https://www.unpac.me/results/f0740830-f971-49eb-a5bc-b0350b742a70/
SH256 hash:
2bbc83904cdb16fec766a08dff6d5c16ab1376e6910c53b780f744faf759365d
MD5 hash:
7e8a883f011fa797f104ece654400ec1
SHA1 hash:
3fa322459934ad7bdd967765055a2ff6a6e71d64
Link:
https://www.unpac.me/results/f0740830-f971-49eb-a5bc-b0350b742a70/
SH256 hash:
557260d94ea20dcd980632dbc467735f881adf78037f64198931427a2d3a4347
MD5 hash:
a71433b1d8cde8a8acbac55fc0405398
SHA1 hash:
d70eeeb4e05437232ae9e23e564ae730ac7222b9
Link:
https://www.unpac.me/results/f0740830-f971-49eb-a5bc-b0350b742a70/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/557260d94ea2/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: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 557260d94ea20dcd980632dbc467735f881adf78037f64198931427a2d3a4347

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1763345/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/205862/

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