MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a543a1c165826c1cc9c6703e02ff50f398e80221ecd6df58b9bd125abf161ead. 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


RemcosRAT


Vendor detections: 17


Intelligence 17 IOCs YARA 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a543a1c165826c1cc9c6703e02ff50f398e80221ecd6df58b9bd125abf161ead
SHA3-384 hash: 29e2fd306a61370abce28d88792f54f531c8df750d4a05b6e61d4129b4ed5de66309f68fa7e69a16d14735320c7ccc76
SHA1 hash: 75e2776f7f50a678afcfea55b998796e55141049
MD5 hash: 65648db3b2762142eb97ca37fb8e68be
humanhash: bakerloo-carbon-video-green
File name:a543a1c165826c1cc9c6703e02ff50f398e80221ecd6df58b9bd125abf161ead
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:493'056 bytes
First seen:2025-01-10 14:11:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 12288:HuD09AUkNIGBYYv4eK13x13nZHSRVMf139F5wIB7+IwtHwBtVCbesvZDSq+DY:609AfNIEYsunZvZ49ZBs
TLSH T1BAA4BE01B6D2C072D57625300D26E775DEBDBD212835897BB3DA1D67FE30180E63AAB2
TrID 32.2% (.EXE) Win64 Executable (generic) (10522/11/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4504/4/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
File icon (PE):PE icon
dhash icon c4d48eaa8ad4d4f8 (1'000 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter adrian__luca
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
331
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a543a1c165826c1cc9c6703e02ff50f398e80221ecd6df58b9bd125abf161ead
Verdict:
No threats detected
Analysis date:
2025-01-09 14:56:30 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/9221d759-21ef-4883-b4e5-e3adbbadbcaf

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Trojan.Remcos-9841897-0
Create hunting rule

Win.Trojan.Remcos-10002580-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=677fe398ffdcee13ec88cb0b
Tags:
ransomware dropper remcos virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd evasive exploit explorer fingerprint lolbin microsoft_visual_cc packed packed rat remcos windows
Link:
https://www.filescan.io/uploads/67812ab71b01484d158e3318/reports/cc385003-9959-4b49-b310-4b57d12e5b86/overview
Verdict:
Malicious
Labled as:
Remcos.Generic
Link:
https://www.hybrid-analysis.com/sample/a543a1c165826c1cc9c6703e02ff50f398e80221ecd6df58b9bd125abf161ead
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:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/fd48e11d-9d29-46be-9130-51f5fdd74ee4
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1588946
Signature
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
Score:
95%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a543a1c165826c1cc9c6703e02ff50f398e80221ecd6df58b9bd125abf161ead
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a543a1c165826c1cc9c6703e02ff50f398e80221ecd6df58b9bd125abf161ead/
Threat name:
Win32.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-01-09 14:56:26 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uvb2dqlfqjwbzsogoa7af72q6omoqarb5tln6wfzxujfvpywd2wq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost discovery
Link:
https://tria.ge/reports/250110-rh3p8swnd1/
Behaviour
Program crash
System Location Discovery: System Language Discovery
Malware Config
C2 Extraction:
192.210.150.26:3678
Verdict:
Malicious
Tags:
rat remcos Win.Trojan.Remcos-9841897-0
YARA:
malware_windows_remcos_rat REMCOS_RAT_variants Remcos_Payload win_remcos_rat_unpacked Windows_Trojan_Remcos_b296e965 MAL_EXE_Remcos_RAT_Jul_22 Remcos
Link:
https://app.threat.zone/submission/91c48217-5d0f-4ee2-b6b0-c58b63cc99f2
Unpacked files
SH256 hash:
a543a1c165826c1cc9c6703e02ff50f398e80221ecd6df58b9bd125abf161ead
MD5 hash:
65648db3b2762142eb97ca37fb8e68be
SHA1 hash:
75e2776f7f50a678afcfea55b998796e55141049
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_w0
Create hunting rule
Link:
https://www.unpac.me/results/68ab07d8-7ce0-4bc2-96fa-468e11a51f3a/
Please note that we are no longer able to provide a coverage score for Virus Total.

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:lsi_remcos
Create hunting rule
Author:anonym
Description:Remcos_V5 Payload
Rule name:lsi_remcos2
Create hunting rule
Author:anonym
Description:Remcos_V5 Payload
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Remcos_unpacked_PulseIntel
Create hunting rule
Author:PulseIntel
Description:Remcos Payload
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
Rule name:win_remcos_rat_unpacked
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:win_remcos_w0
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Create hunting rule
Author:Matthew @ Embee_Research

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
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments