MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37e7b15bd9b8ace5fd0e0a61b942748c772c8892d4ea1a4b4769ee72a9021636. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 37e7b15bd9b8ace5fd0e0a61b942748c772c8892d4ea1a4b4769ee72a9021636
SHA3-384 hash: 030d81cf2cc88df7f0cd5cd7b539666b76814f94fa4119fdc878a5cd9bbc83cb7e55aec4f33c52b613199cb2ed18c08e
SHA1 hash: 2767df7cea3b973476902cc74ccee829e5a4cbd9
MD5 hash: e53cdd984882793c93d3e9a9822b4a10
humanhash: batman-nine-cup-echo
File name:SecuriteInfo.com.Win32.RATX-gen.96.23134
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:7'947'264 bytes
First seen:2024-10-23 10:35:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 196608:kGCsGNI92Tb48i0AhQHNzcJ72Yie9TR7PHyA4pVMup0hB:kOsXTpid7rie9VeA4pVk
Threatray 4'527 similar samples on MalwareBazaar
TLSH T171862303B79B8DB3D356A733C5A724040FBAE942729BD71F264E736A78237669900713
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter SecuriteInfoCom
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
408
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
4cb0c81e0a65fad12ae7a55db5839cbb.zip
Verdict:
Malicious activity
Analysis date:
2024-10-23 08:36:10 UTC
Tags:
arch-exec rat remcos remote purecrypter netreactor
Link:
https://app.any.run/tasks/9c19ecda-5097-4a38-b7f2-4ff322829473

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.RATX-gen.96.23134.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6718d2565a02f8393c734b81
Tags:
Autorun Keylog Micro Word
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file
Unauthorized injection to a recently created process
Restart of the analyzed sample
Сreating synchronization primitives
Setting a keyboard event handler
Connection attempt
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
overlay packed remcos
Link:
https://www.filescan.io/uploads/6718d1967184660038540c97/reports/75244fcc-0ba8-4d47-af25-9ed8a4bb6417/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/37e7b15bd9b8ace5fd0e0a61b942748c772c8892d4ea1a4b4769ee72a9021636
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ee12536f-2172-41b6-9370-a4f1ae98327e
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1540103
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
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
Drops VBS files to the startup folder
Found malware configuration
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Drops script at startup location
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1540103 Sample: SecuriteInfo.com.Win32.RATX... Startdate: 23/10/2024 Architecture: WINDOWS Score: 100 29 Suricata IDS alerts for network traffic 2->29 31 Found malware configuration 2->31 33 Malicious sample detected (through community Yara rule) 2->33 35 13 other signatures 2->35 7 wscript.exe 1 2->7         started        10 SecuriteInfo.com.Win32.RATX-gen.96.23134.exe 5 2->10         started        process3 file4 37 Windows Scripting host queries suspicious COM object (likely to drop second stage) 7->37 13 cvchost.exe 2 7->13         started        21 C:\Users\user\AppData\Local\cvchost.exe, PE32 10->21 dropped 23 C:\Users\user\AppData\Roaming\...\cvchost.vbs, ASCII 10->23 dropped 25 C:\Users\user\...\cvchost.exe:Zone.Identifier, ASCII 10->25 dropped 39 Drops VBS files to the startup folder 10->39 41 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->41 16 SecuriteInfo.com.Win32.RATX-gen.96.23134.exe 3 1 10->16         started        signatures5 process6 dnsIp7 43 Antivirus detection for dropped file 13->43 45 Multi AV Scanner detection for dropped file 13->45 47 Contains functionality to bypass UAC (CMSTPLUA) 13->47 51 6 other signatures 13->51 19 cvchost.exe 13->19         started        27 193.29.13.204, 49877, 49879, 49891 RO Romania 16->27 49 Installs a global keyboard hook 16->49 signatures8 process9
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/37e7b15bd9b8ace5fd0e0a61b942748c772c8892d4ea1a4b4769ee72a9021636
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/37e7b15bd9b8ace5fd0e0a61b942748c772c8892d4ea1a4b4769ee72a9021636/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-10-19 22:53:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=g7t3cw6zxcwol7iobjq3sqturr3szces2tvbus2hnhxhfkiccy3a._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0bb66047b9a8fc0ad9312c27166c507b82be23e28441be00b0e09b010068bdb6
RemcosRAT
6a8c2987ea059d7ad328722dfe1d8c7e08f257fbf3b7ef9dfd37b8e2f485840a
RemcosRAT
70fde5e9ea72ec208951adecf91801b752d72390a87d7defb288d67553a446a1
RemcosRAT
a22fb5a6beb7587e89ed509ba36d193070c2cb7ef5cc9cb2393823037265c39b
RemcosRAT
b670e59f539f07cfa6e43d69a9792f1fa38cf6dbdd92bca0db08511727e9308d
RemcosRAT
error
RemcosRAT
+ 4'517 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery
Link:
https://tria.ge/reports/241023-mm9bcsvfqg/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Drops file in Windows directory
Suspicious use of SetThreadContext
Drops startup file
Suspicious use of NtCreateUserProcessOtherParentProcess
Verdict:
Malicious
Tags:
remcos
YARA:
n/a
Link:
https://app.threat.zone/submission/6c0c843e-f29b-4617-ba70-a52199f0017d
Unpacked files
SH256 hash:
2b16592099954cbd1b9114bdab36072f57cca3ecdeeceb39625394da580314f4
MD5 hash:
8821baa3dbb7de92f924216cf6d28137
SHA1 hash:
e1eceaafba1d6b06e31da8bca76e3698b1b5832c
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/8989340e-d409-4daf-a29b-830b821727a9/
SH256 hash:
37e7b15bd9b8ace5fd0e0a61b942748c772c8892d4ea1a4b4769ee72a9021636
MD5 hash:
e53cdd984882793c93d3e9a9822b4a10
SHA1 hash:
2767df7cea3b973476902cc74ccee829e5a4cbd9
Link:
https://www.unpac.me/results/8989340e-d409-4daf-a29b-830b821727a9/
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/37e7b15bd9b8ace5fd0e0a61b942748c772c8892d4ea1a4b4769ee72a9021636

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:NETexecutableMicrosoft
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 (GUARD_CF)high

Comments