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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 84679cf34b287601a2a31bc0ddae62c2eab3178f86e6a8f79b52bc644de13fd4. 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: 13


Intelligence 13 IOCs YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 84679cf34b287601a2a31bc0ddae62c2eab3178f86e6a8f79b52bc644de13fd4
SHA3-384 hash: b9436d2d7a4eb2e91dcc791721cf28045bc9c593d0bc4c1f729dd119600f7f768a1a6faca8921dc815f861eda0b97310
SHA1 hash: af9a9d9af88aad456a9477987edabea7c79f51b9
MD5 hash: 635a192fb79b97d88e078ab3824d271c
humanhash: neptune-arkansas-zebra-green
File name:bTxb.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:239'104 bytes
First seen:2024-02-05 11:07:23 UTC
Last seen:2024-02-14 10:07:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash bc4f8e98d1041d53dd63bfb91ed10d0a (52 x RemcosRAT)
ssdeep 6144:6mvl3n8iOiB4RBucKa3h80tK2gBWvADGGw6j1o:nvlX8i8RB5JvADGGnj
TLSH T1403412982F66EC65F2C090F45801D1F072EA2C761EA7264D07E4BF57BCBD650BE96063
TrID 54.9% (.EXE) UPX compressed Win32 Executable (27066/9/6)
13.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.1% (.EXE) Win32 Executable (generic) (4504/4/1)
4.1% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon c4d48eaa8ad4d4f8 (1'213 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter pmelson
Tags:exe remcos RemcosRAT

Intelligence

File Origin
# of uploads :
7
# of downloads :
338
Origin country :
US US
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/474682/
Detection(s):
Win.Trojan.Remcos-9841897-0
Create hunting rule

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

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
evasive fingerprint hook packed packed packed rat upx
Link:
https://www.filescan.io/uploads/65c0c19619fc380914220599/reports/e8da2625-4aa0-46b6-843f-414806e6c337/overview
Verdict:
Malicious
Labled as:
DeepScan:Generic.Remcos
Link:
https://www.hybrid-analysis.com/sample/84679cf34b287601a2a31bc0ddae62c2eab3178f86e6a8f79b52bc644de13fd4
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7b08adda-65c4-4d96-88c5-74b3eeeb583f
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/1386721
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
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
Found malware configuration
Installs a global keyboard hook
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
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)
Uses dynamic DNS services
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/84679cf34b287601a2a31bc0ddae62c2eab3178f86e6a8f79b52bc644de13fd4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/84679cf34b287601a2a31bc0ddae62c2eab3178f86e6a8f79b52bc644de13fd4/
Threat name:
Win32.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-02-05 11:08:07 UTC
File Type:
PE (Exe)
Extracted files:
17
AV detection:
34 of 38 (89.47%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qrtzz42lfb3adivddpan3ltcylvlgf4pq3tkr543kk6gitpbh7ka._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:ofia6474646 collection rat spyware stealer upx
Link:
https://tria.ge/reports/240205-m8j9csgcgl/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Reads user/profile data of web browsers
UPX packed file
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
money001.duckdns.org:9596
salwanazeeze.duckdns.org:9595
Unpacked files
SH256 hash:
7dd37f840963b51b6f5d77b13999d2f192f5cad343325eb0a1564b158688e2a0
MD5 hash:
ddfa2ee7c9d22c9c2e0cda08a10fb93a
SHA1 hash:
e43b7402115fb7af77f4569790179016e9fd06ad
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/926496c1-aad4-435e-bac7-132dbde1cdb3/
SH256 hash:
84679cf34b287601a2a31bc0ddae62c2eab3178f86e6a8f79b52bc644de13fd4
MD5 hash:
635a192fb79b97d88e078ab3824d271c
SHA1 hash:
af9a9d9af88aad456a9477987edabea7c79f51b9
Link:
https://www.unpac.me/results/926496c1-aad4-435e-bac7-132dbde1cdb3/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/84679cf34b28/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.97
Link:
https://yomi.yoroi.company/submissions/84679cf34b287601a2a31bc0ddae62c2eab3178f86e6a8f79b52bc644de13fd4

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
Rule name:UPXv20MarkusLaszloReiser
Create hunting rule
Author:malware-lu
Rule name:upx_3
Create hunting rule
Author:Kevin Falcoz
Description:UPX 3.X
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
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_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.

Web download

RemcosRAT

Executable exe 84679cf34b287601a2a31bc0ddae62c2eab3178f86e6a8f79b52bc644de13fd4

(this sample)

  
Link
https://www.virustotal.com/gui/file/84679cf34b287601a2a31bc0ddae62c2eab3178f86e6a8f79b52bc644de13fd4/detection
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/474682/

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