MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8092ae8e5c2fcb2f4ed5be1dac0723ef951a8b445c45aa68376d093fa3a5623. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c8092ae8e5c2fcb2f4ed5be1dac0723ef951a8b445c45aa68376d093fa3a5623
SHA3-384 hash: 7a124716d1e01ecfe6c58768ab071c246f3d666fc61833e7ebcf4299150f8752adaa9599f44118a520969b9ed95e8707
SHA1 hash: 4029fb38507d83e47588f9843d8afcf74003f9ea
MD5 hash: 9a41223b386389a4f3f78b5598bac55b
humanhash: jig-william-sixteen-alaska
File name:INV2023021306070335CN.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:7'680 bytes
First seen:2023-02-13 11:31:31 UTC
Last seen:2023-02-13 13:29:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'737 x AgentTesla, 19'595 x Formbook, 12'238 x SnakeKeylogger)
ssdeep 96:YpUIpb4xaVGEp7QLDsc9Vr/RZBzh4HbKlKetY8nXGkzZizNt:QUjwcESLgKV7TNh4HUKetY8nXrNE
Threatray 3'856 similar samples on MalwareBazaar
TLSH T1ABF1F720E7DC8633DE6B8736AC7377C00774A35658D7CB5EACC8114A6C2A78546A3AB1
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter 0xToxin
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
217
Origin country :
IL IL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
INV2023021306070335CN.exe
Verdict:
Malicious activity
Analysis date:
2023-02-13 11:32:58 UTC
Tags:
rat remcos stealer
Link:
https://app.any.run/tasks/0a1bea91-cbb6-4579-a1bc-3b84df093685

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/365020/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.23513.31554.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Creating a file
Reading critical registry keys
Creating a file in the %temp% directory
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63ea1fb46ea97adc8fc0b76a/reports/719082d9-1a32-4342-8da1-03d3ec429ca1/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/c8092ae8e5c2fcb2f4ed5be1dac0723ef951a8b445c45aa68376d093fa3a5623
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/7040e872-e1d9-4156-9653-72ffcfb36a9f
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1173292
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
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Delayed program exit found
Encrypted powershell cmdline option found
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)
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
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)
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 806081 Sample: INV2023021306070335CN.exe Startdate: 13/02/2023 Architecture: WINDOWS Score: 100 60 Malicious sample detected (through community Yara rule) 2->60 62 Antivirus detection for URL or domain 2->62 64 Multi AV Scanner detection for submitted file 2->64 66 8 other signatures 2->66 7 INV2023021306070335CN.exe 16 7 2->7         started        12 Utlzn.exe 14 4 2->12         started        14 Utlzn.exe 2->14         started        process3 dnsIp4 50 transfer.sh 144.76.136.153, 443, 49712, 49718 HETZNER-ASDE Germany 7->50 38 C:\Users\user\AppData\Roaming\...\Utlzn.exe, PE32 7->38 dropped 40 C:\Users\user\...\Utlzn.exe:Zone.Identifier, ASCII 7->40 dropped 42 C:\Users\...\INV2023021306070335CN.exe.log, ASCII 7->42 dropped 74 Encrypted powershell cmdline option found 7->74 76 Writes to foreign memory regions 7->76 78 Allocates memory in foreign processes 7->78 16 aspnet_compiler.exe 2 14 7->16         started        20 powershell.exe 14 7->20         started        80 Multi AV Scanner detection for dropped file 12->80 82 Machine Learning detection for dropped file 12->82 84 Injects a PE file into a foreign processes 12->84 22 powershell.exe 12->22         started        file5 signatures6 process7 dnsIp8 44 obologs.work.gd 185.156.175.35, 34346, 49715, 49716 M247GB Romania 16->44 46 geoplugin.net 178.237.33.50, 49717, 80 ATOM86-ASATOM86NL Netherlands 16->46 52 Contains functionality to bypass UAC (CMSTPLUA) 16->52 54 Contains functionality to steal Chrome passwords or cookies 16->54 56 Contains functionality to inject code into remote processes 16->56 58 2 other signatures 16->58 24 aspnet_compiler.exe 1 16->24         started        27 aspnet_compiler.exe 16->27         started        29 aspnet_compiler.exe 16->29         started        35 25 other processes 16->35 31 conhost.exe 20->31         started        33 conhost.exe 22->33         started        signatures9 process10 dnsIp11 68 Tries to steal Instant Messenger accounts or passwords 24->68 70 Tries to steal Mail credentials (via file / registry access) 24->70 48 192.168.2.1 unknown unknown 35->48 72 Tries to harvest and steal browser information (history, passwords, etc) 35->72 signatures12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c8092ae8e5c2fcb2f4ed5be1dac0723ef951a8b445c45aa68376d093fa3a5623/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-02-13 09:49:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zaesv2hfyl6lf5hnlpq5vqdsh34vdkfuixcfvjudo3ijh6r2kyrq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
032f8672b774c3a0edd3b84b0f809e1901319a2b0a4a60704e75f92bdac4f7bb
RemcosRAT
03541b2cf3bf022eda584b9ead6b6edeb7a47e8ccaa99b2415ee56694c9868cb
RemcosRAT
221784974f49f2b54c90c63ce6cf9550d94b15c3442c29c959300dbbf5b91f61
RemcosRAT
23dd65161a7f297125c40f5c9e12d9c0bc9c314021a74de9d47ec8bc13146b18
RemcosRAT
69b7150f7be7cfd685c50328e9554d28d99e9f7babdf19eb10ea350a3658f2ac
RemcosRAT
9172e039e1e9412067ba121f93ec85c4883992eefe71438b6b02e0635152732d
RemcosRAT
aecb74252f3ae4e3d912c1983de70c06ac29c69b287b31e45d29fbee0ccb5772
RemcosRAT
e876ad440761c60b772b110b7e6f08c4e156ebdb17d78c55aa4594edc65ff78a
RemcosRAT
+ 3'846 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection persistence rat
Link:
https://tria.ge/reports/230213-nm94bscd2x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Checks computer location settings
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
obologs.work.gd:34346
Unpacked files
SH256 hash:
c8092ae8e5c2fcb2f4ed5be1dac0723ef951a8b445c45aa68376d093fa3a5623
MD5 hash:
9a41223b386389a4f3f78b5598bac55b
SHA1 hash:
4029fb38507d83e47588f9843d8afcf74003f9ea
Link:
https://www.unpac.me/results/020c066d-0e7e-4393-95ef-90dfdefd7272/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c8092ae8e5c2/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/c8092ae8e5c2fcb2f4ed5be1dac0723ef951a8b445c45aa68376d093fa3a5623

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.

Cape
Cape
https://www.capesandbox.com/analysis/365020/

Comments