MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8d1b7f35cfe8b82cfb3403113b8c8f1b6910b293208157b988418a082dd6eba. 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


FatalRAT


Vendor detections: 12


Intelligence 12 IOCs 1 YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b8d1b7f35cfe8b82cfb3403113b8c8f1b6910b293208157b988418a082dd6eba
SHA3-384 hash: cce3ef012f7f77516f13b3eb3ce344f11cf1ab134e5f1013d5329c7711496dc59f6fda2d5e7bdb02a4fc3d1e6f24a50e
SHA1 hash: 82dacfef360cba32b7515877c70083ebcfd9a7a4
MD5 hash: abecbc4dbed5809df67c446202c8ee57
humanhash: massachusetts-november-fruit-dakota
File name:abecbc4dbed5809df67c446202c8ee57.exe
Download: download sample
Signature FatalRAT
Create hunting rule
File size:93'704 bytes
First seen:2025-08-06 23:30:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 87bed5a7cba00c7e1f4015f1bdae2183 (3'034 x Jadtre, 23 x IcedID, 17 x Blackmoon)
ssdeep 1536:ipDnq+5h/tDSZ15Wwd6QpDnq+5h/tDSZ15Wwdq:ipDRzSZaCtpDRzSZaCq
TLSH T1C8937D037B27D159F620CC3C18424A9C67597F72CD1378ABA2613EB73D3A0D62E16A72
TrID 88.8% (.EXE) Mew compressed Win32 Executable (67744/24/5)
5.9% (.EXE) Win32 Executable (generic) (4504/4/1)
2.6% (.EXE) Generic Win/DOS Executable (2002/3)
2.6% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
dhash icon 04ccfee2ece4a484 (5 x Regrun, 3 x Rahiwi, 2 x Mydoom)
Reporter abuse_ch
Tags:exe FatalRAT


Avatar
abuse_ch
FatalRAT C2:
121.54.190.122:8000

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
121.54.190.122:8000 https://threatfox.abuse.ch/ioc/1565359/

Intelligence

File Origin
# of uploads :
1
# of downloads :
48
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
abecbc4dbed5809df67c446202c8ee57.exe
Verdict:
No threats detected
Analysis date:
2025-08-06 23:30:55 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/12e2be6a-2b8a-484b-943b-79788a640ac0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/19391/
Detection(s):
PUA.Win.Packer.MEW-1
Create hunting rule

Win.Worm.Fi3erncgrqmib-9956633-0
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6893e5c61e8a59ee04e6c53e
Tags:
brontok packed virus encpk
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed packed packer_detected
Link:
https://www.filescan.io/uploads/6893e5be2fbe0788fb1b11c5/reports/f6a23a1a-82d5-4cde-9bcb-548c77924dec/overview
Verdict:
Malicious
Labled as:
Opanki.worm.b
Link:
https://www.hybrid-analysis.com/sample/b8d1b7f35cfe8b82cfb3403113b8c8f1b6910b293208157b988418a082dd6eba
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/163adddc-37d0-4cd2-b154-4e445f55046c
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/1751873
Signature
Antivirus / Scanner detection for submitted sample
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b8d1b7f35cfe8b82cfb3403113b8c8f1b6910b293208157b988418a082dd6eba
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b8d1b7f35cfe8b82cfb3403113b8c8f1b6910b293208157b988418a082dd6eba/
Verdict:
Malicious
Threat:
Worm.Win32.VB
Link:
https://tip.neiki.dev/file/b8d1b7f35cfe8b82cfb3403113b8c8f1b6910b293208157b988418a082dd6eba
Threat name:
Win32.Worm.Ludbaruma
Create hunting rule
Status:
Malicious
First seen:
2025-08-03 02:27:22 UTC
File Type:
PE (Exe)
Extracted files:
25
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xdi3p42472fyft5tiayrhogi6g3jcczjgiebk64yqqmkbaw5n25a._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/250806-3hlmhahl9z/
Verdict:
Malicious
Tags:
Win.Worm.Fi3erncgrqmib-9956633-0
YARA:
n/a
Link:
https://app.threat.zone/submission/f5f03ea2-dc42-4c23-ae52-b3a77113a4e1
Unpacked files
SH256 hash:
b8d1b7f35cfe8b82cfb3403113b8c8f1b6910b293208157b988418a082dd6eba
MD5 hash:
abecbc4dbed5809df67c446202c8ee57
SHA1 hash:
82dacfef360cba32b7515877c70083ebcfd9a7a4
Link:
https://www.unpac.me/results/d258f1b9-51a5-4f66-a900-08984f98e9f6/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b8d1b7f35cfe/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b8d1b7f35cfe8b82cfb3403113b8c8f1b6910b293208157b988418a082dd6eba

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:INDICATOR_EXE_Packed_MEW
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with MEW
Rule name:mew_11_xx
Create hunting rule
Author:Kevin Falcoz
Description:MEW 11
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.

Cape
Cape
https://www.capesandbox.com/analysis/19391/

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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryA

Comments