MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37d591fc9cbb5d1880fa42ec39099bb85d6d98d367657a464d55bec146de1385. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 37d591fc9cbb5d1880fa42ec39099bb85d6d98d367657a464d55bec146de1385
SHA3-384 hash: b95b29be55190d72688a6c937348b91e90abc6c169c9fe1c772f48dd1b105eee4891d6590fb8f0833bc6c4bb36723f7f
SHA1 hash: bc13bfa2277ef959d6d86841b5d18b0c9595e8b1
MD5 hash: 948d139bfb4861e870504a095cc19e7b
humanhash: victor-sink-finch-jersey
File name:orA5ALUAmWVn51g.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:703'488 bytes
First seen:2024-10-10 16:23:23 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 12288:t7jgjbquQJrkkNk6vwyVdDOOOA82HzwIFFuOWkdBu2paTbcgsGPWqp4l:hgkdIyVdlO1UwEuOWkvue4bdI04l
Threatray 4'198 similar samples on MalwareBazaar
TLSH T1FDE412E6151AE932C9B203B10031D7BB0B7A7D8DF422E31B5AEDDCD376067A87994391
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
File icon (PE):PE icon
dhash icon 1ee5e39be66238a0 (9 x Formbook, 3 x MassLogger, 2 x SnakeKeylogger)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
398
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
orA5ALUAmWVn51g.exe
Verdict:
No threats detected
Analysis date:
2024-10-10 16:53:33 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/71af1ccb-276c-4105-b57f-e1e78e666e46

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.BackDoor.AgentTeslaNET.27.10498.21423.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6707ffa6ab31793a7b215814
Tags:
malware
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6707ffa488204e432568cc00/reports/6558c539-15b5-4bef-84a3-f8fdf9b8ba68/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/37d591fc9cbb5d1880fa42ec39099bb85d6d98d367657a464d55bec146de1385
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:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/389213a0-d64f-46a1-b864-fade6e02eb37
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1530975
Signature
.NET source code contains potential unpacker
AI detected suspicious sample
Found direct / indirect Syscall (likely to bypass EDR)
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1530975 Sample: orA5ALUAmWVn51g.exe Startdate: 10/10/2024 Architecture: WINDOWS Score: 100 31 www.aismart-contractor.xyz 2->31 33 www.zhongzhuankk389.sbs 2->33 35 9 other IPs or domains 2->35 45 Suricata IDS alerts for network traffic 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Multi AV Scanner detection for submitted file 2->49 53 5 other signatures 2->53 10 orA5ALUAmWVn51g.exe 3 2->10         started        signatures3 51 Performs DNS queries to domains with low reputation 31->51 process4 file5 29 C:\Users\user\...\orA5ALUAmWVn51g.exe.log, ASCII 10->29 dropped 65 Injects a PE file into a foreign processes 10->65 14 orA5ALUAmWVn51g.exe 10->14         started        signatures6 process7 signatures8 67 Maps a DLL or memory area into another process 14->67 17 RckKhRmXhY.exe 14->17 injected process9 signatures10 43 Found direct / indirect Syscall (likely to bypass EDR) 17->43 20 cleanmgr.exe 13 17->20         started        process11 signatures12 55 Tries to steal Mail credentials (via file / registry access) 20->55 57 Tries to harvest and steal browser information (history, passwords, etc) 20->57 59 Modifies the context of a thread in another process (thread injection) 20->59 61 3 other signatures 20->61 23 RckKhRmXhY.exe 20->23 injected 27 firefox.exe 20->27         started        process13 dnsIp14 37 fourier.tech 15.197.204.56, 52896, 52897, 52898 TANDEMUS United States 23->37 39 blind4aday.life 84.32.84.32, 52884, 52885, 52886 NTT-LT-ASLT Lithuania 23->39 41 5 other IPs or domains 23->41 63 Found direct / indirect Syscall (likely to bypass EDR) 23->63 signatures15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/37d591fc9cbb5d1880fa42ec39099bb85d6d98d367657a464d55bec146de1385
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/37d591fc9cbb5d1880fa42ec39099bb85d6d98d367657a464d55bec146de1385/
Threat name:
Win32.Trojan.SnakeLogger
Create hunting rule
Status:
Malicious
First seen:
2024-10-10 16:24:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=g7kzd7e4xnorrah2ilwdscm3xbow3ggtm5sxursnkw7mcrw6cocq._file
Verdict:
malicious
Label(s):
unknown_loader_037
Create hunting rule
Similar samples:
34920a90105dca3971cbd0871a0f34203c6b398197b8239eba454d502100f9ee
Formbook
5c843f8c13233f441ab303066ddbfa573d4a27c75b3c3afac042448796299244
Formbook
8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f
Formbook
a44cc5b971dcc6bb80c84e850b2529ef6f3e78cc24ce574ae3d2daacc8b9ea51
Formbook
e0e7d67763efac156e039e3b9b8e4cf0e269109164788c4901f338f1399699ee
Formbook
error
Formbook
+ 4'188 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/241010-twc3vavdla/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/199a68d4-c10a-4deb-a800-82083eb0124d
Unpacked files
SH256 hash:
a42e17bea076098f078a454484275534e4ecd93eb339326d88a6fbf6c9427327
MD5 hash:
c34e995a219cb8b309b7116bb752616b
SHA1 hash:
1cb496143b2f3b1b95e282144b952ce951db3e36
Detections:
win_formbook_g0
Create hunting rule
win_formbook_w0
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Link:
https://www.unpac.me/results/aa3129a0-efd6-489d-bf22-8fb56f7efe3a/
SH256 hash:
1dff06715a3058f489d8e328808c5476481ec23b7bcbc6166bf86d96515cb592
MD5 hash:
c66afc354330d2e2c0a54eac06b20171
SHA1 hash:
99b5ee9ffdf0f390c8e849969caa8b12a505e0a5
Link:
https://www.unpac.me/results/aa3129a0-efd6-489d-bf22-8fb56f7efe3a/
SH256 hash:
ea72f09a3e2db37b19bfa374fe98de07c0f5a1b2dce60ae875c17d996d312b38
MD5 hash:
bee035eaba04a77312f1bb527a3f4183
SHA1 hash:
8542e144f98b03728b4d255ee3f470d5d80e93a8
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/aa3129a0-efd6-489d-bf22-8fb56f7efe3a/
Parent samples :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 hash:
1ef0690d3337b9595e42c304e6e6f24a42caa372d9ac947ed93ab6f702af2ba3
MD5 hash:
1bc29f6f48452732a39e96c0f2c8d8ac
SHA1 hash:
1f45831490afdf340a573f7fe36302d860959652
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/aa3129a0-efd6-489d-bf22-8fb56f7efe3a/
SH256 hash:
37d591fc9cbb5d1880fa42ec39099bb85d6d98d367657a464d55bec146de1385
MD5 hash:
948d139bfb4861e870504a095cc19e7b
SHA1 hash:
bc13bfa2277ef959d6d86841b5d18b0c9595e8b1
Link:
https://www.unpac.me/results/aa3129a0-efd6-489d-bf22-8fb56f7efe3a/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/37d591fc9cbb/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.61
Link:
https://yomi.yoroi.company/submissions/37d591fc9cbb5d1880fa42ec39099bb85d6d98d367657a464d55bec146de1385

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
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.

Malspam

Formbook

Executable exe 37d591fc9cbb5d1880fa42ec39099bb85d6d98d367657a464d55bec146de1385

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments