MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0f4d1dbae1cbb430bd201e362d7325a9a462de60d0fa04de4c3ef871de11248d. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0f4d1dbae1cbb430bd201e362d7325a9a462de60d0fa04de4c3ef871de11248d
SHA3-384 hash: 7bdec3c9359ba617517fc6365381bac53195d73596a0bb232970f5fa43d1800ed4941b8f66fdcd45e0f3229da375a661
SHA1 hash: 110a96f1b5c12fd037d859893a24006f0fa3fd04
MD5 hash: 0936b7713936d51076fe77b8c8da04e0
humanhash: football-island-mexico-nitrogen
File name:0936b7713936d51076fe77b8c8da04e0.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:866'816 bytes
First seen:2022-10-27 08:31:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:8Ho/fOuZ8LRDppurpXjit1hUYr10dBtyyGLosbYE8f4VRn2Ar:wUGuZ8tDCRjizhbrW4pE0pVt
TLSH T1C6057A24239B4F07D0EACF74B871D6B017A25D7FA97DCA86CAD46CFB74222A4690C543
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter abuse_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
275
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
0936b7713936d51076fe77b8c8da04e0.exe
Verdict:
Malicious activity
Analysis date:
2022-10-27 08:39:18 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7bf06137-c5e1-4180-a097-7cc911d2dd33

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/324786/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.738.21420.20652.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching cmd.exe command interpreter
Creating a file in the Windows subdirectories
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Launching a process
Running batch commands
Creating a process with a hidden window
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Blocking the User Account Control
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/3960bf2e-e43b-4122-a30e-1811df07c67f
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1099102
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an autostart registry key pointing to binary in C:\Windows
Detected Remcos RAT
Disables UAC (registry)
Drops executables to the windows directory (C:\Windows) and starts them
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to delay execution (extensive OutputDebugStringW loop)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
UAC bypass detected (mscfile / eventvwr.exe)
Uses cmd line tools excessively to alter registry or file data
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 731753 Sample: wBTfR6I4VU.exe Startdate: 27/10/2022 Architecture: WINDOWS Score: 100 74 Multi AV Scanner detection for domain / URL 2->74 76 Malicious sample detected (through community Yara rule) 2->76 78 Antivirus detection for URL or domain 2->78 80 11 other signatures 2->80 11 wBTfR6I4VU.exe 3 2->11         started        15 Microsoft Intel Audio.exe 2 2->15         started        17 Microsoft Intel Audio.exe 2 2->17         started        process3 file4 70 C:\Users\user\AppData\...\wBTfR6I4VU.exe.log, ASCII 11->70 dropped 102 Injects a PE file into a foreign processes 11->102 19 wBTfR6I4VU.exe 1 5 11->19         started        23 wBTfR6I4VU.exe 11->23         started        104 Drops executables to the windows directory (C:\Windows) and starts them 15->104 25 Microsoft Intel Audio.exe 15->25         started        27 Microsoft Intel Audio.exe 17->27         started        signatures5 process6 file7 66 C:\Windows\...\Microsoft Intel Audio.exe, PE32 19->66 dropped 68 Microsoft Intel Au...exe:Zone.Identifier, ASCII 19->68 dropped 82 Creates an autostart registry key pointing to binary in C:\Windows 19->82 29 cmd.exe 1 19->29         started        32 cmd.exe 1 19->32         started        84 UAC bypass detected (mscfile / eventvwr.exe) 25->84 34 eventvwr.exe 25->34         started        36 eventvwr.exe 25->36         started        signatures8 process9 signatures10 106 Uses ping.exe to sleep 29->106 38 Microsoft Intel Audio.exe 3 29->38         started        41 PING.EXE 1 29->41         started        44 conhost.exe 29->44         started        108 Uses cmd line tools excessively to alter registry or file data 32->108 110 Uses ping.exe to check the status of other devices and networks 32->110 46 reg.exe 1 32->46         started        48 conhost.exe 32->48         started        50 mmc.exe 34->50         started        process11 dnsIp12 96 Injects a PE file into a foreign processes 38->96 52 Microsoft Intel Audio.exe 2 1 38->52         started        72 127.0.0.1 unknown unknown 41->72 98 Disables UAC (registry) 46->98 55 mmc.exe 50->55         started        signatures13 process14 signatures15 86 Detected Remcos RAT 52->86 88 Writes to foreign memory regions 52->88 90 Allocates memory in foreign processes 52->90 92 Injects a PE file into a foreign processes 52->92 57 cmd.exe 1 52->57         started        60 iexplore.exe 52->60         started        94 Tries to delay execution (extensive OutputDebugStringW loop) 55->94 process16 signatures17 100 Uses cmd line tools excessively to alter registry or file data 57->100 62 conhost.exe 57->62         started        64 reg.exe 1 57->64         started        process18
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0f4d1dbae1cbb430bd201e362d7325a9a462de60d0fa04de4c3ef871de11248d/
Threat name:
Win32.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2022-10-26 17:10:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
35
AV detection:
21 of 40 (52.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=b5gr3oxbzo2dbpjady3c24zfvgsgfxta2d5ajxsmh34hdxqresgq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:oct 25th rdp brand:microsoft evasion persistence phishing rat trojan
Link:
https://tria.ge/reports/221027-kfas4sbef3/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Modifies registry key
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Detected potential entity reuse from brand microsoft.
Drops file in System32 directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Remcos
UAC bypass
Malware Config
C2 Extraction:
gcrozonav.duckdns.org:4045
Unpacked files
SH256 hash:
64dd4e39f7bd25d424f78ee2ccd6d8e69d0e180b4cfc7b066e75de78c68456bd
MD5 hash:
b48dbb566d3b529db0c940016c4f1ff1
SHA1 hash:
8842c870be3a7fab20a01e78019a4c91594bfeb2
Link:
https://www.unpac.me/results/0d9fb1ad-c026-4149-aa1e-d3fbd3534ede/
SH256 hash:
1b1202d3bde040bbf01cd093b86ff6a54e23b568592e181d56ceb5d35ec97218
MD5 hash:
82fc27e0bfcf82ddacd8a7b9ef60d77c
SHA1 hash:
69307cb08110b49adaab6746fc0f34c33ff1a8cc
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_g0
Create hunting rule
Link:
https://www.unpac.me/results/0d9fb1ad-c026-4149-aa1e-d3fbd3534ede/
SH256 hash:
4c36b46c8d956425f1e5baf899170f773430050594efae3aeb78e2fdd0146f08
MD5 hash:
2beee4e52d642b5a8602b66333af2031
SHA1 hash:
ae332b9d67682ce1662a32845e306eb900d94e41
Link:
https://www.unpac.me/results/0d9fb1ad-c026-4149-aa1e-d3fbd3534ede/
SH256 hash:
cfc16a2dbb933b1b85807d48966e9301b9fc34f4c44e7357713ca88b54bf4ab4
MD5 hash:
aabd0bdc81026ade6c57383f21d5c227
SHA1 hash:
4b26936bb8c03be6d7963184215a5ab594ecb765
Link:
https://www.unpac.me/results/0d9fb1ad-c026-4149-aa1e-d3fbd3534ede/
SH256 hash:
3e5b968cc062c2fcb6641006f9253de71fda88793f7229eeebbe9e430744fb5e
MD5 hash:
792611d758a1b1d421e789216e776618
SHA1 hash:
455f19d0dbeed6f0cb4ed2e18fbe4717e0749840
Link:
https://www.unpac.me/results/0d9fb1ad-c026-4149-aa1e-d3fbd3534ede/
SH256 hash:
0f4d1dbae1cbb430bd201e362d7325a9a462de60d0fa04de4c3ef871de11248d
MD5 hash:
0936b7713936d51076fe77b8c8da04e0
SHA1 hash:
110a96f1b5c12fd037d859893a24006f0fa3fd04
Link:
https://www.unpac.me/results/0d9fb1ad-c026-4149-aa1e-d3fbd3534ede/
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/0f4d1dbae1cbb430bd201e362d7325a9a462de60d0fa04de4c3ef871de11248d

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: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.

Web download

RemcosRAT

Executable exe 0f4d1dbae1cbb430bd201e362d7325a9a462de60d0fa04de4c3ef871de11248d

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2272201/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/324786/

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