MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4a9a76e7a18ea2e2dcf234b006be09f9fdf1cbd4ac7d88bdf0dced5cb453374. 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 2 File information Comments
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SHA256 hash: f4a9a76e7a18ea2e2dcf234b006be09f9fdf1cbd4ac7d88bdf0dced5cb453374
SHA3-384 hash: 6def451907a78370519aed0cf3e50819e85ab8382bb1abddc912f9c2a908b3b873db382d47d78b9181be98f34db11c64
SHA1 hash: 5a5547c9f5328c4d73458c27a4841b5ff9b5738b
MD5 hash: 559e7d00549bbb00fd6454f597b6ec69
humanhash: delta-north-enemy-ack
File name:f4a9a76e7a18ea2e2dcf234b006be09f9fdf1cbd4ac7d88bdf0dced5cb453374
Download: download sample
Signature Formbook
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File size:1'056'768 bytes
First seen:2022-12-08 10:59:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'665 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:y1uCqdOSSQJs9a79QrjAuu7w+QJID2k9mc1sfu3:yzqdOSS2s9aqrauJNWsf
TLSH T161256BCB2F300E84CB5E34715C8D1B8862923DA149F59CF22B756A786D464FFA69237C
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
166
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
f4a9a76e7a18ea2e2dcf234b006be09f9fdf1cbd4ac7d88bdf0dced5cb453374
Verdict:
No threats detected
Analysis date:
2022-12-08 10:59:08 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ac1b631b-5bc1-4bb8-8794-e922dae846fa

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/344287/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.389-2.UNOFFICIAL
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SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6391c3b975655a0108ea7f29/reports/63cf6a04-47f9-45c3-8340-ff950029e661/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f78fcc24-9727-48a7-b7de-8d92198be8ad
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1130689
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 763416 Sample: R34BngCKKk.exe Startdate: 08/12/2022 Architecture: WINDOWS Score: 100 31 Malicious sample detected (through community Yara rule) 2->31 33 Antivirus detection for URL or domain 2->33 35 Antivirus / Scanner detection for submitted sample 2->35 37 8 other signatures 2->37 10 R34BngCKKk.exe 3 2->10         started        process3 file4 29 C:\Users\user\AppData\...\R34BngCKKk.exe.log, ASCII 10->29 dropped 47 Tries to detect virtualization through RDTSC time measurements 10->47 49 Injects a PE file into a foreign processes 10->49 14 R34BngCKKk.exe 10->14         started        17 R34BngCKKk.exe 10->17         started        signatures5 process6 signatures7 51 Modifies the context of a thread in another process (thread injection) 14->51 53 Maps a DLL or memory area into another process 14->53 55 Sample uses process hollowing technique 14->55 57 Queues an APC in another process (thread injection) 14->57 19 explorer.exe 14->19 injected process8 signatures9 39 Uses ipconfig to lookup or modify the Windows network settings 19->39 22 ipconfig.exe 19->22         started        process10 signatures11 41 Modifies the context of a thread in another process (thread injection) 22->41 43 Maps a DLL or memory area into another process 22->43 45 Tries to detect virtualization through RDTSC time measurements 22->45 25 cmd.exe 1 22->25         started        process12 process13 27 conhost.exe 25->27         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f4a9a76e7a18ea2e2dcf234b006be09f9fdf1cbd4ac7d88bdf0dced5cb453374/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2022-11-22 13:23:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6su2o3t2ddvc4lopenfqa27at6p56hf5jld5rc67bxhnls2fgn2a._file
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:lt63 rat spyware stealer trojan
Link:
https://tria.ge/reports/221208-m32w8acg2v/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/46bb4021-e057-43ad-8bd5-f28ad4280719
Unpacked files
SH256 hash:
f85988a97318ca71790688312a923e4b10cd05790801c747b0f0bb9ebc0a6ee2
MD5 hash:
b1bbc7280df281e302e1c28cc2f26c17
SHA1 hash:
f71f9319c4759421f887af24f914f9193c927199
Detections:
FormBook
Create hunting rule
win_formbook_auto
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win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/97857226-9e98-4ebf-847a-7b6a148d7c82/
Parent samples :
44b473195e8f495f9e53899badaabf0e164b52ec3cc3d73be3c59cc5c570ccd1
66c5b65f8e75acbce3103b6527cc1c32fdb53467c9b22475f36b60b28ed85f26
f4a9a76e7a18ea2e2dcf234b006be09f9fdf1cbd4ac7d88bdf0dced5cb453374
7a0e92402659c86d9da6faf33be3817996718051ea564e34aa43a41606df7be6
548fb330ffeb62ab1fd674a557606885338344c8cc807e2a3f9c64e475bdf2c0
d38f58de7af51ac311b23e3f813e8c33599df3f5fe78661fd8b50b90b7805b22
68cb6a1efb7c442f063eee5ae3f96ae12a3d2fba0852f22aa7a761cf8b1ae31a
SH256 hash:
e17215a47782e0905902f0acc157108a5099a18955c3af501c1c57fd5848a66d
MD5 hash:
e6d6a3247d49e56c7f8f28f42fb7f01f
SHA1 hash:
ff08942fbdc9e9004b0af944f6d4a89126c1ab10
Link:
https://www.unpac.me/results/97857226-9e98-4ebf-847a-7b6a148d7c82/
SH256 hash:
aa7f605b730016e3b067edf8309a364af52e23f957c53abcd3ed514308da8cb2
MD5 hash:
aa2c9649aa665f806b1616cb2628ece5
SHA1 hash:
ac2af73ac0de57ef9395c991a5a90023bd0f840a
Link:
https://www.unpac.me/results/97857226-9e98-4ebf-847a-7b6a148d7c82/
SH256 hash:
00e235f40a9e794b9d6cb9fb9244e321a4e632951bdb809044b0e2af07b98d35
MD5 hash:
48c6f000da9a80f92b48ef6099fa8a37
SHA1 hash:
9b43df5e56005d1ee03f16ff02f26e76272aca7c
Link:
https://www.unpac.me/results/97857226-9e98-4ebf-847a-7b6a148d7c82/
SH256 hash:
0b21144a173235eeae69cdf4d17156962a20cd6103751c24267c9d9fcc99f89e
MD5 hash:
0ecbea1ea7b9cad492daf9d6f3da4362
SHA1 hash:
1c2276427f65e2598b758e25912eb872d74c7012
Link:
https://www.unpac.me/results/97857226-9e98-4ebf-847a-7b6a148d7c82/
SH256 hash:
f4a9a76e7a18ea2e2dcf234b006be09f9fdf1cbd4ac7d88bdf0dced5cb453374
MD5 hash:
559e7d00549bbb00fd6454f597b6ec69
SHA1 hash:
5a5547c9f5328c4d73458c27a4841b5ff9b5738b
Link:
https://www.unpac.me/results/97857226-9e98-4ebf-847a-7b6a148d7c82/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f4a9a76e7a18/report/overview.html
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/f4a9a76e7a18ea2e2dcf234b006be09f9fdf1cbd4ac7d88bdf0dced5cb453374

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.

Cape
Cape
https://www.capesandbox.com/analysis/344287/

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