MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 831975e1eb5ae6317af19632eebd4aa9980b7cec60a8c1a36095ec5861186872. 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: 16


Intelligence 16 IOCs YARA 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 831975e1eb5ae6317af19632eebd4aa9980b7cec60a8c1a36095ec5861186872
SHA3-384 hash: 616d7e3b9133fe6d4c8b013959cadb351e89e86208d85802c5e09df3d958224b03e36e6e7287a9c7e8262c1d8335bda1
SHA1 hash: c564c887fa89c68b6cb505ba84a608688f765ce0
MD5 hash: 37c7a1848828bf348e93892c32cd02a3
humanhash: item-november-oven-carpet
File name:x50sq16M5tmr.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:494'592 bytes
First seen:2023-11-30 02:34:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 8d5087ff5de35c3fbb9f212b47d63cad (170 x RemcosRAT)
ssdeep 6144:AXIktXfM8Lv86r9uVWAa2je4Z5zl4hgDHQQs4NTQjoHFsAOZZsAX4cN975Gv:AX7tPMK8ctGe4Dzl4h2QnuPs/Zsg7cv
Threatray 3'048 similar samples on MalwareBazaar
TLSH T18CB49E01BAD1C072D57524300D36F776EAB8BD2028364A7BB3D61D5BFE31190B62A6B7
TrID 32.2% (.EXE) Win64 Executable (generic) (10523/12/4)
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) (4505/5/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon c4d48eaa8ad4d4f8 (1'000 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter pmelson
Tags:exe remcos RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
397
Origin country :
US US
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/461285/
Detection(s):
Win.Trojan.Remcos-9841897-0
Create hunting rule

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Gathering data
Verdict:
Malicious
Labled as:
Remcos.Generic
Link:
https://www.hybrid-analysis.com/sample/831975e1eb5ae6317af19632eebd4aa9980b7cec60a8c1a36095ec5861186872
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/a8191d26-d254-4ce5-b136-4015661d0405
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1350292
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 modify clipboard data
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
Deletes itself after installation
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/831975e1eb5ae6317af19632eebd4aa9980b7cec60a8c1a36095ec5861186872
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/831975e1eb5ae6317af19632eebd4aa9980b7cec60a8c1a36095ec5861186872/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2023-11-30 02:35:05 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
22 of 23 (95.65%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qmmxlypllltdc6xrsyzo5pkkvgmaw7hmmcumdi3asxwfqyiynbza._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
51dabbac77dd37a7643e57d5b709bbffd375b3f0f644d0b677b9f33900317d9e
RemcosRAT
728e6e2b92f46c84865ec974f440661f40b8df3f328a7c2bd842c1c697f6c992
RemcosRAT
831975e1eb5ae6317af19632eebd4aa9980b7cec60a8c1a36095ec5861186872
RemcosRAT
86b4d9c62ca9eccd9341136d5d4831548ccb79ed000f29e8a8cc0afcbe639c90
RemcosRAT
a6eb5df0aa74bbf113e867adf46fc4e227fb72137d4bc5f9359cef4e34cf25ef
RemcosRAT
b4dfd2634ebcea3dfb1dd0becd6b7dd6945fa3d8650c1d3a870ad3185320af45
RemcosRAT
dd548447d54ccb44d04b59aea458b6c9b7bde3224a621df6ff0d6e79ac2bb568
RemcosRAT
ef91fad857fc6fde238f090e51f8d9aed1dc09efc089aa539041ec6cf0d81a0f
RemcosRAT
+ 3'038 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost
Link:
https://tria.ge/reports/231130-c2187aeh55/
Behaviour
Modifies registry class
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Deletes itself
Malware Config
C2 Extraction:
9.tcp.ngrok.io:22201
Unpacked files
SH256 hash:
831975e1eb5ae6317af19632eebd4aa9980b7cec60a8c1a36095ec5861186872
MD5 hash:
37c7a1848828bf348e93892c32cd02a3
SHA1 hash:
c564c887fa89c68b6cb505ba84a608688f765ce0
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_rat_unpacked
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
Link:
https://www.unpac.me/results/32e76f6e-4984-42ab-9361-27b45b8411aa/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/831975e1eb5a/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/831975e1eb5ae6317af19632eebd4aa9980b7cec60a8c1a36095ec5861186872

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: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_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.

Web download

RemcosRAT

Executable exe 831975e1eb5ae6317af19632eebd4aa9980b7cec60a8c1a36095ec5861186872

(this sample)

  
Link
https://www.virustotal.com/gui/file/831975e1eb5ae6317af19632eebd4aa9980b7cec60a8c1a36095ec5861186872/detection
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/461285/

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