MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 85072c1047d2354b40e07b8ad6628f86208fb392a56cd868b9d166f7f6b462c7. 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: 17


Intelligence 17 IOCs YARA 7 File information Comments

SHA256 hash: 85072c1047d2354b40e07b8ad6628f86208fb392a56cd868b9d166f7f6b462c7
SHA3-384 hash: 79d48d7147a118376e0130834ae6a369a72072fe32ff9947d33659494f4baa623a0398a260e5b7f0c1d3b0991dc88648
SHA1 hash: 313422ac19b51cd0f0827414a6d743639ae8d892
MD5 hash: 668ab80274e478146789a6e13930cae8
humanhash: golf-vermont-winter-california
File name:PRE ALERT DOCS.exe
Download: download sample
Signature RemcosRAT
File size:535'851 bytes
First seen:2023-02-07 14:28:52 UTC
Last seen:2023-02-13 07:07:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 12288:/YNggj0rkQK1tX11pfh8hK5W747mAShDh8Ho1DwccpXo6B6Wdu+xoqw0c:/YNgiGKXzpfh8hKfmAStoU0VBwUlwb
Threatray 2'599 similar samples on MalwareBazaar
TLSH T134B42310BA4E99B7C0B686710EB99376D8E6A948013147AB6354FD8C76F3052CB9E33C
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter James_inthe_box
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
5
# of downloads :
198
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
PRE ALERT DOCS.exe
Verdict:
Malicious activity
Analysis date:
2023-02-07 14:30:23 UTC
Tags:
rat remcos

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process by context flags manipulation
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
nemesis overlay packed shell32.dll
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.
Result
Threat name:
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2023-02-07 12:49:17 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost rat
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Remcos
Malware Config
C2 Extraction:
45.87.61.104:3033
Unpacked files
SH256 hash:
403c50737f275b28d65dcbd8d9decf20d7df84bc1e6f5c0bc9e567dfb98270a0
MD5 hash:
9957e15d7a3889ed0dbdbf93baa86211
SHA1 hash:
f461b82981884154bea5e41dbae65a5e899ab05b
Detections:
Remcos win_remcos_auto
SH256 hash:
9ce4fdfbfd64b2da086e1a28cbb5952c59874fd90ff67396dde004775d92ea6d
MD5 hash:
15b2694d49e36aa75d5bf108bcf6f7b0
SHA1 hash:
845b9bf6d6f70ab3876737dd78234fa30016ef0a
SH256 hash:
85072c1047d2354b40e07b8ad6628f86208fb392a56cd868b9d166f7f6b462c7
MD5 hash:
668ab80274e478146789a6e13930cae8
SHA1 hash:
313422ac19b51cd0f0827414a6d743639ae8d892
Please note that we are no longer able to provide a coverage score for Virus Total.

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:iexplorer_remcos
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:Remcos
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Remcos_b296e965
Author:Elastic Security
Rule name:win_remcos_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

RemcosRAT

Executable exe 85072c1047d2354b40e07b8ad6628f86208fb392a56cd868b9d166f7f6b462c7

(this sample)

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