MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a3816b1412f7868e2f73d449838fbf77a82a78a46ba53acb3a66c5558eb87d43. 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 5 File information Comments
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SHA256 hash: a3816b1412f7868e2f73d449838fbf77a82a78a46ba53acb3a66c5558eb87d43
SHA3-384 hash: 8e31aecd653c2c24d47adf0d1b166af764314647a0cb5dbad09402d4996af689d591a870149323982bfadecd7e282434
SHA1 hash: 790860204ecc5f331ad844a9614db470852cc5c1
MD5 hash: 2cea15fdc11177ec98c806718ae931c3
humanhash: pizza-angel-idaho-shade
File name:a3816b1412f7868e2f73d449838fbf77a82a78a46ba53acb3a66c5558eb87d43
Download: download sample
Signature Formbook
Create hunting rule
File size:916'992 bytes
First seen:2025-01-10 14:08:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'611 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:D2xj3LCnYnJNArZcf0L4Fugn/gcrN7vA:yknYJ6Fcfy4FN/gSv
TLSH T11A151264529BE806C8D21BB04573E7F86264DD89F911C30B5FEA7EFFBD7625624803A0
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 0048496961686800 (5 x Formbook, 2 x RemcosRAT, 1 x Loki)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
183
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a3816b1412f7868e2f73d449838fbf77a82a78a46ba53acb3a66c5558eb87d43
Verdict:
No threats detected
Analysis date:
2025-01-10 14:26:05 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/90794ce1-be20-4818-acad-fe3f020c41cd

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.3133.20258.22455.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67812a212c8240e189bb82ed
Tags:
remcos virus micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected remcos vbnet
Link:
https://www.filescan.io/uploads/67812a0d0e6ff2c7570326e1/reports/b60a1616-7d52-44b5-8196-1073d37e228c/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/a3816b1412f7868e2f73d449838fbf77a82a78a46ba53acb3a66c5558eb87d43
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/dcab997d-2dca-4a3c-bda7-4652ef0426ec
Result
Threat name:
FormBook, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1564948
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
Machine Learning detection for sample
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)
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
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1564948 Sample: 1k24tbb-00241346.exe Startdate: 29/11/2024 Architecture: WINDOWS Score: 100 31 www.tageting.shop 2->31 33 www.ssps.shop 2->33 35 16 other IPs or domains 2->35 45 Suricata IDS alerts for network traffic 2->45 47 Antivirus / Scanner detection for submitted sample 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 7 other signatures 2->51 10 1k24tbb-00241346.exe 3 2->10         started        signatures3 process4 file5 29 C:\Users\user\...\1k24tbb-00241346.exe.log, ASCII 10->29 dropped 63 Injects a PE file into a foreign processes 10->63 14 1k24tbb-00241346.exe 10->14         started        signatures6 process7 signatures8 65 Maps a DLL or memory area into another process 14->65 17 QfGRujHtFW.exe 14->17 injected process9 signatures10 43 Found direct / indirect Syscall (likely to bypass EDR) 17->43 20 find.exe 13 17->20         started        process11 signatures12 53 Tries to steal Mail credentials (via file / registry access) 20->53 55 Tries to harvest and steal browser information (history, passwords, etc) 20->55 57 Modifies the context of a thread in another process (thread injection) 20->57 59 3 other signatures 20->59 23 QfGRujHtFW.exe 20->23 injected 27 firefox.exe 20->27         started        process13 dnsIp14 37 dojodigitize.shop 15.197.142.173, 49733, 80 TANDEMUS United States 23->37 39 0be.info 173.0.157.187, 49842, 49849, 49855 SERVERS-COMUS United States 23->39 41 9 other IPs or domains 23->41 61 Found direct / indirect Syscall (likely to bypass EDR) 23->61 signatures15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a3816b1412f7868e2f73d449838fbf77a82a78a46ba53acb3a66c5558eb87d43
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a3816b1412f7868e2f73d449838fbf77a82a78a46ba53acb3a66c5558eb87d43/
Threat name:
ByteCode-MSIL.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-11-28 02:59:13 UTC
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uoawwfas66di4l3t2reyhd57o6ucu6fenostvsz2m3cvldvypvbq._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/250110-rf7amswmft/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/5e225786-063c-4e02-a838-b665e0877b71
Unpacked files
SH256 hash:
ec8deadfb161c0233ebbf2a749e82560cf0a6f65e2b7c189f6c531c51a7c5d59
MD5 hash:
6928a1e1f991e5d03bfda70d81ab28a2
SHA1 hash:
b7d1065bb8de35d6d97cf752583b5beecd492be8
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/5c778e51-cbae-41e3-a058-23f7202f5da9/
Parent samples :
74f33c5f79ed66213b0cc26c0b677a92d7164e21ab8b3208eb8555d360277201
a3816b1412f7868e2f73d449838fbf77a82a78a46ba53acb3a66c5558eb87d43
SH256 hash:
6ff6afc71b25fc4637d3c25c752165e0f461103bc389ca4855322e223e129769
MD5 hash:
2d7dec446e71fc3fdfe6118ecd32f41d
SHA1 hash:
0e4f0185e733e13a200b9ba01cd57e7ad06404ec
Link:
https://www.unpac.me/results/5c778e51-cbae-41e3-a058-23f7202f5da9/
SH256 hash:
d846948ee5c3d35b9d01ce5b14dda1daac908796ad0c36cd48365095a6638820
MD5 hash:
76881c74a131d3ffabbe8e6b3835d88b
SHA1 hash:
c4cf2351d204e9ac35956eb60bc127152cfd19ae
Link:
https://www.unpac.me/results/5c778e51-cbae-41e3-a058-23f7202f5da9/
SH256 hash:
891f641d7dc3c0376287823222190e6f62755fa2f3953a129b7217aba11edc66
MD5 hash:
b1229b8c200e7b40abf2b65c197dcd96
SHA1 hash:
0cd5ee9e8a2f779ed9afc9b2e9bca1a8c8d42d63
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/5c778e51-cbae-41e3-a058-23f7202f5da9/
SH256 hash:
67dcf18fdd4c10ffb663147b020f3ad61318901788b549b9ed9f3e1048d0aa73
MD5 hash:
a6377ea44fc38dd0821b260a6b2ef2a7
SHA1 hash:
000a27dbb56df395033adf78ef97339d2f001178
Link:
https://www.unpac.me/results/5c778e51-cbae-41e3-a058-23f7202f5da9/
SH256 hash:
a3816b1412f7868e2f73d449838fbf77a82a78a46ba53acb3a66c5558eb87d43
MD5 hash:
2cea15fdc11177ec98c806718ae931c3
SHA1 hash:
790860204ecc5f331ad844a9614db470852cc5c1
Link:
https://www.unpac.me/results/5c778e51-cbae-41e3-a058-23f7202f5da9/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.87
Link:
https://yomi.yoroi.company/submissions/a3816b1412f7868e2f73d449838fbf77a82a78a46ba53acb3a66c5558eb87d43

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
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

The table below shows additional information about this malware sample such as delivery method and external references.

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 (HIGH_ENTROPY_VA)high

Comments