MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9959e90aa4c3f30ba809d83c2f5fe0e4a2cfe1be7aaa0a7c503221de6b2b4ed. 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: b9959e90aa4c3f30ba809d83c2f5fe0e4a2cfe1be7aaa0a7c503221de6b2b4ed
SHA3-384 hash: d5425ede1240e9dafa75e658217b30df3627ef7426b7e8466c69c55caa0828aa8b99ddf9fea4432f7fba4a0bcab7a16e
SHA1 hash: 8e165cf813ea07ef6ce9517066f84cfc4baebf44
MD5 hash: 5af7dbc820c5b955d3f7f85fb3930c16
humanhash: snake-twenty-sixteen-white
File name:b9959e90aa4c3f30ba809d83c2f5fe0e4a2cfe1be7aaa0a7c503221de6b2b4ed
Download: download sample
Signature Formbook
Create hunting rule
File size:829'952 bytes
First seen:2022-06-07 10:55:04 UTC
Last seen:2022-06-07 12:07:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 24576:iVbu95plT2ZIACi4bQ42gDBsiE109SGpD:n9HlKeXiJjgDBsvD
TLSH T133054D44B24C79CFC407C4728CBD9D2065147A6E532BC50F31637A7E99AE3436A26EBE
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon b2b2a8a6aa928e8c (9 x Formbook)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
235
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b9959e90aa4c3f30ba809d83c2f5fe0e4a2cfe1be7aaa0a7c503221de6b2b4ed
Verdict:
Malicious activity
Analysis date:
2022-06-07 11:00:27 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b67956fd-982c-44ff-81ca-a203c06f67c4

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/277327/
Detection(s):
SecuriteInfo.com.Trojan.Siggen17.52229.20399.31376.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/629f2ec59bbf30d03f431965/reports/f0eead8f-eaf2-42ca-8f40-04398b39d75e/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/025600be-28ff-4243-8f80-30457cb99360
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1008066
Signature
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd or bat file
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: 640563 Sample: GjcKrsGUVb Startdate: 07/06/2022 Architecture: WINDOWS Score: 100 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus detection for URL or domain 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 5 other signatures 2->46 10 GjcKrsGUVb.exe 3 2->10         started        14 explorer.exe 1 2->14         started        process3 file4 30 C:\Users\user\AppData\...behaviorgraphjcKrsGUVb.exe.log, ASCII 10->30 dropped 56 Tries to detect virtualization through RDTSC time measurements 10->56 58 Injects a PE file into a foreign processes 10->58 16 GjcKrsGUVb.exe 10->16         started        signatures5 process6 signatures7 32 Modifies the context of a thread in another process (thread injection) 16->32 34 Maps a DLL or memory area into another process 16->34 36 Sample uses process hollowing technique 16->36 38 Queues an APC in another process (thread injection) 16->38 19 explorer.exe 16->19 injected process8 process9 21 wscript.exe 19->21         started        signatures10 48 Self deletion via cmd or bat file 21->48 50 Modifies the context of a thread in another process (thread injection) 21->50 52 Maps a DLL or memory area into another process 21->52 54 Tries to detect virtualization through RDTSC time measurements 21->54 24 cmd.exe 1 21->24         started        26 explorer.exe 104 21->26         started        process11 process12 28 conhost.exe 24->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b9959e90aa4c3f30ba809d83c2f5fe0e4a2cfe1be7aaa0a7c503221de6b2b4ed/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-05-16 05:50:56 UTC
File Type:
PE (.Net Exe)
Extracted files:
23
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xgkz5efkjq7tbouatwb4f5p6bzfcz7q346vkbj6famrb3zvswtwq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:v22n rat spyware stealer trojan
Link:
https://tria.ge/reports/220607-m1nxkshgbp/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Unpacked files
SH256 hash:
668cbe0a93489313a99155f7f271ecbeda6af710c74c300382b35c967cb0ae88
MD5 hash:
1b3228731d7dcfc516ca42afb025e2a9
SHA1 hash:
355cfea2cbacd0ebbea68edf1914fef0651f9a6c
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/37b2fa89-6bfd-4ce5-b530-0b0a804fc6ac/
Parent samples :
ea2658a5a9c2e881e0b36d923947e1ea742ab6f91071d80be1f9977cbe6a96c2
bf9fc9f690971624a76b90184876db7aee742ffe51309340fc7db584d3441876
065447963af3f19bf39599204f7617764ebc6703b795cb5948d7660e01c955ff
b9959e90aa4c3f30ba809d83c2f5fe0e4a2cfe1be7aaa0a7c503221de6b2b4ed
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/37b2fa89-6bfd-4ce5-b530-0b0a804fc6ac/
SH256 hash:
9ba4e807db48cf44614650dd84e42a5b18f5d3ce61a81309344f440aacbcdcec
MD5 hash:
7c53083375da359b46fc21ace7fbfba9
SHA1 hash:
2658fb721a4f4391a22f6fa2bc30b39a3c9aa13c
Link:
https://www.unpac.me/results/37b2fa89-6bfd-4ce5-b530-0b0a804fc6ac/
SH256 hash:
b9959e90aa4c3f30ba809d83c2f5fe0e4a2cfe1be7aaa0a7c503221de6b2b4ed
MD5 hash:
5af7dbc820c5b955d3f7f85fb3930c16
SHA1 hash:
8e165cf813ea07ef6ce9517066f84cfc4baebf44
Link:
https://www.unpac.me/results/37b2fa89-6bfd-4ce5-b530-0b0a804fc6ac/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b9959e90aa4c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/b9959e90aa4c3f30ba809d83c2f5fe0e4a2cfe1be7aaa0a7c503221de6b2b4ed

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
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.

Cape
Cape
https://www.capesandbox.com/analysis/277327/

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