MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b1dcf9d1e2518e912abcee672aadcaed51f1aa435e3dc1b3fb43d047ec24f1e. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments 1
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SHA256 hash: 4b1dcf9d1e2518e912abcee672aadcaed51f1aa435e3dc1b3fb43d047ec24f1e
SHA3-384 hash: 2e30220ac8cb3ee828e085f86dd3eeb1e269703e216f3c25ef9a446d461b667f4cb2d690a3ba5646ef9219136b66a239
SHA1 hash: 07f489074f56e64a791e75dd7905b41f2a000153
MD5 hash: fc2310dcaf93e7b285f5ce26db6f774f
humanhash: solar-eight-ink-hotel
File name:fc2310dcaf93e7b285f5ce26db6f774f
Download: download sample
Signature Formbook
Create hunting rule
File size:1'574'400 bytes
First seen:2021-08-12 08:02:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:egcKmNgis3mLyCMfv9VPtes6y/Q68trI+ePV3tebVpqU5RaT2fX/AZrSmXKz0tYw:iKhis3mgfv9VtPojINV9JgaT2fXjvOf
Threatray 7'676 similar samples on MalwareBazaar
TLSH T10E75E63C29B9266FC076C675CBE59827F4009CAF3252AD55A4C73366433AA5379C323E
dhash icon e4b8b878fcdcf9f0 (9 x Formbook, 5 x AgentTesla, 4 x Loki)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
297
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
fc2310dcaf93e7b285f5ce26db6f774f
Verdict:
Suspicious activity
Analysis date:
2021-08-12 08:08:18 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/53fd07b3-56cd-4e67-9c7d-f7c10a0f1c77

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/178526/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.995.739.14860.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
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/c163c554-6a6a-4d3b-b6d9-1e7083ade44c
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/831537
Signature
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Found malware configuration
Machine Learning detection for sample
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
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: 463968 Sample: 1oIgERjqzN Startdate: 12/08/2021 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 1oIgERjqzN.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\1oIgERjqzN.exe.log, ASCII 10->28 dropped 52 Tries to detect virtualization through RDTSC time measurements 10->52 14 1oIgERjqzN.exe 10->14         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 14->54 56 Maps a DLL or memory area into another process 14->56 58 Sample uses process hollowing technique 14->58 60 Queues an APC in another process (thread injection) 14->60 17 explorer.exe 14->17 injected process8 dnsIp9 30 agencepartenaire.com 185.98.131.47, 49733, 80 RMI-FITECHFR France 17->30 32 www.united-for-humanity.net 17->32 34 2 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 chkdsk.exe 17->21         started        signatures10 process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4b1dcf9d1e2518e912abcee672aadcaed51f1aa435e3dc1b3fb43d047ec24f1e/
Threat name:
ByteCode-MSIL.Trojan.Sabsik
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Status:
Malicious
First seen:
2021-08-12 08:03:08 UTC
AV detection:
17 of 46 (36.96%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1f9b5c120efbd32491158582492dc17322b805c955626fbe43f2136a77b1812a
Formbook
24e635e80cecd03066225b27fdb524c4542586b22dc820e05f8a02072008c674
Formbook
30c70e6852155344b71c74dc919b365847a12ef299cda58501051f706e7bbbf4
Formbook
7f3e97e42369a76be6688dc29fe71b83b0754acc7df08a6253460e23da7d1ce7
Formbook
c59d79d86f4d301a0d7c94df257fb8ab803bc69517bc6642e5d6ad4410a7a8bb
Formbook
+ 7'666 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:wt5i rat spyware stealer trojan
Link:
https://tria.ge/reports/210812-wvqcbw88xa/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.nouolive.com/wt5i/
Unpacked files
SH256 hash:
33ac6b8012ce739e72022086b5d39b7fc030c20fa72988f76957685509d5c041
MD5 hash:
83f8ae95a7e6f016f6b00482588086e6
SHA1 hash:
70392939d6d60a913b51084ec1d98eaae8ca4868
Link:
https://www.unpac.me/results/e48551f0-79f4-4ec7-8259-b82b1d71220c/
SH256 hash:
58ac1109befc97494c48a8dc703cce6d690fa139d4c2910693dec84c1bb69b34
MD5 hash:
e47697cc38bea968ecc6109bb430670c
SHA1 hash:
b344ae4c5b3b2265f5a5db27e509a41fb0569516
Link:
https://www.unpac.me/results/e48551f0-79f4-4ec7-8259-b82b1d71220c/
SH256 hash:
b631cbec8797356a20c9cc7fefe132f40eb822309fa77d5b293e79eb39a3cfa8
MD5 hash:
afe3532e924ae2ca6e39dac05e8ef1c6
SHA1 hash:
953d10b9554315b957cb76a60a2eb207f43cdb7e
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/e48551f0-79f4-4ec7-8259-b82b1d71220c/
Parent samples :
24e635e80cecd03066225b27fdb524c4542586b22dc820e05f8a02072008c674
c59d79d86f4d301a0d7c94df257fb8ab803bc69517bc6642e5d6ad4410a7a8bb
7f3e97e42369a76be6688dc29fe71b83b0754acc7df08a6253460e23da7d1ce7
30c70e6852155344b71c74dc919b365847a12ef299cda58501051f706e7bbbf4
1f9b5c120efbd32491158582492dc17322b805c955626fbe43f2136a77b1812a
4b1dcf9d1e2518e912abcee672aadcaed51f1aa435e3dc1b3fb43d047ec24f1e
SH256 hash:
4b1dcf9d1e2518e912abcee672aadcaed51f1aa435e3dc1b3fb43d047ec24f1e
MD5 hash:
fc2310dcaf93e7b285f5ce26db6f774f
SHA1 hash:
07f489074f56e64a791e75dd7905b41f2a000153
Link:
https://www.unpac.me/results/e48551f0-79f4-4ec7-8259-b82b1d71220c/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/4b1dcf9d1e25/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/4b1dcf9d1e2518e912abcee672aadcaed51f1aa435e3dc1b3fb43d047ec24f1e

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 4b1dcf9d1e2518e912abcee672aadcaed51f1aa435e3dc1b3fb43d047ec24f1e

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1527106/
Cape
Cape
https://www.capesandbox.com/analysis/178526/

Comments


Avatar
zbet commented on 2021-08-12 08:02:40 UTC

url : hxxp://phcn.xyz/swagzx.exe