MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf959c8b9bbb333f1ba32b7b6100d6c799cf6d21411914ac288bf9971b3ada13. 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: 20


Intelligence 20 IOCs 1 YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bf959c8b9bbb333f1ba32b7b6100d6c799cf6d21411914ac288bf9971b3ada13
SHA3-384 hash: 94bad49fcb7e3deb1f31630d7a1e7a58fdb5408d8463be294ff8494ef9e5d9e138b6fa4a9755508ef195660a78cd2c8e
SHA1 hash: ecb7694e316c82d3cb91bd76aa395169f8345a27
MD5 hash: 7e0fb6d08352c44ae511b38003e9d852
humanhash: bakerloo-neptune-wyoming-charlie
File name:7E0FB6D08352C44AE511B38003E9D852.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:994'304 bytes
First seen:2024-08-31 06:00:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:lum6Hz4CHoQy8c6vIGhRAqYVw0On9y8Vo3/9V+M:lum68CFy8JI/Dw0Onse
TLSH T17B2522B0BA5A8DA6CC4983F20C3A46310267AD0C54E9D91E70DA3E6B77B33633555D3E
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
File icon (PE):PE icon
dhash icon 68d8d8c8d9a9c1d9 (96 x SnakeKeylogger, 67 x RemcosRAT, 66 x Formbook)
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
103.161.133.245:9898

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
103.161.133.245:9898 https://threatfox.abuse.ch/ioc/1317612/

Intelligence

File Origin
# of uploads :
1
# of downloads :
513
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
7E0FB6D08352C44AE511B38003E9D852.exe
Verdict:
Malicious activity
Analysis date:
2024-08-31 06:03:28 UTC
Tags:
rat remcos evasion
Link:
https://app.any.run/tasks/8ef22c52-37d9-4438-ba66-caf22483a3b4

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.14249.22863.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66d2b1a22f84dc7f9a0a4df2
Tags:
Discovery Infostealer Network Stealth Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file
Сreating synchronization primitives
Connection attempt
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated overlay packed
Link:
https://www.filescan.io/uploads/66d2b19f3c4b518fb3a56218/reports/1d0eb8ea-ecd5-4548-97c0-d3b41a5b9885/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/bf959c8b9bbb333f1ba32b7b6100d6c799cf6d21411914ac288bf9971b3ada13
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/73afe7f4-f431-4d29-8492-0fa4d2bb6c3d
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1502145
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Detected Remcos RAT
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: Silenttrinity Stager Msbuild Activity
Suricata IDS alerts for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1502145 Sample: 1aoZQ33GDn.exe Startdate: 31/08/2024 Architecture: WINDOWS Score: 100 25 geoplugin.net 2->25 27 56.126.166.20.in-addr.arpa 2->27 29 2 other IPs or domains 2->29 41 Suricata IDS alerts for network traffic 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 14 other signatures 2->47 8 1aoZQ33GDn.exe 3 2->8         started        signatures3 process4 file5 23 C:\Users\user\AppData\...\1aoZQ33GDn.exe.log, ASCII 8->23 dropped 49 Writes to foreign memory regions 8->49 51 Allocates memory in foreign processes 8->51 53 Injects a PE file into a foreign processes 8->53 12 MSBuild.exe 3 13 8->12         started        signatures6 process7 dnsIp8 31 geoplugin.net 178.237.33.50, 49735, 80 ATOM86-ASATOM86NL Netherlands 12->31 33 103.161.133.245, 49732, 49734, 9898 AARNET-AS-APAustralianAcademicandResearchNetworkAARNe unknown 12->33 55 Contains functionality to bypass UAC (CMSTPLUA) 12->55 57 Detected Remcos RAT 12->57 59 Tries to steal Mail credentials (via file registry) 12->59 61 7 other signatures 12->61 16 MSBuild.exe 1 12->16         started        19 MSBuild.exe 1 12->19         started        21 MSBuild.exe 2 12->21         started        signatures9 process10 signatures11 35 Tries to steal Instant Messenger accounts or passwords 16->35 37 Tries to steal Mail credentials (via file / registry access) 16->37 39 Tries to harvest and steal browser information (history, passwords, etc) 19->39
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/bf959c8b9bbb333f1ba32b7b6100d6c799cf6d21411914ac288bf9971b3ada13
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/bf959c8b9bbb333f1ba32b7b6100d6c799cf6d21411914ac288bf9971b3ada13/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-08-28 12:46:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=x6kzzc43xmzt6g5dfn5wcagwy6m463jbiemrjlbirp4zogz23ijq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection credential_access discovery rat stealer
Link:
https://tria.ge/reports/240831-gqwa1syhkg/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Credentials from Password Stores: Credentials from Web Browsers
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Remcos
Malware Config
C2 Extraction:
103.161.133.245:9898
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/5325bbaa-13e8-40c6-8c24-a622ac114b45
Unpacked files
SH256 hash:
2c63ef7de725cdb262d44838f30d2897909842b0610ea16fbaed47d5add6f599
MD5 hash:
d95aa52be10488d7ff365334a968253c
SHA1 hash:
fbacd03f445f87b1ef22a463dbe9b0129ebd4037
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_w0
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
Link:
https://www.unpac.me/results/77047801-3bb3-4ec6-9ad6-a7b529bf0137/
Parent samples :
3f3e5f6ad074cfe5d07c1d8854fad3ad3244d7a049ad1e44f1e1109eb8d3ff12
bf959c8b9bbb333f1ba32b7b6100d6c799cf6d21411914ac288bf9971b3ada13
6046803acf690fbb6e646be03c4a59201fe1a96b8791dd4bf8d2bc4c7eeb7d32
SH256 hash:
512b670fdf74d5b2187d11e03bc5fa9ddce90099cd21e85c4db4eb38b0a65052
MD5 hash:
cb6b90e0376e5c02ca1a2e26a7864ab1
SHA1 hash:
61fbaced5f31f409999099e737a1cc4f8c6bac7a
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/77047801-3bb3-4ec6-9ad6-a7b529bf0137/
SH256 hash:
cca9dd2796f457a3577f8ffb019b5a919f5c6a2043f576e17f73b04bd9b48335
MD5 hash:
1e05a6df34136b46702b71840e4659f2
SHA1 hash:
20a2e26c3662d28b701ae92d6223e33a6d3c4e2e
Link:
https://www.unpac.me/results/77047801-3bb3-4ec6-9ad6-a7b529bf0137/
SH256 hash:
bf959c8b9bbb333f1ba32b7b6100d6c799cf6d21411914ac288bf9971b3ada13
MD5 hash:
7e0fb6d08352c44ae511b38003e9d852
SHA1 hash:
ecb7694e316c82d3cb91bd76aa395169f8345a27
Link:
https://www.unpac.me/results/77047801-3bb3-4ec6-9ad6-a7b529bf0137/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bf959c8b9bbb/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/bf959c8b9bbb333f1ba32b7b6100d6c799cf6d21411914ac288bf9971b3ada13

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: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.

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

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