MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8dd8b145ec24876f20be6dcbf4818b5e6d38a2b5cba55d19ea5590d14208d787. 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: 18


Intelligence 18 IOCs YARA 13 File information Comments

SHA256 hash: 8dd8b145ec24876f20be6dcbf4818b5e6d38a2b5cba55d19ea5590d14208d787
SHA3-384 hash: edc0a884a8839f8c5fc7e50c768e1b854e313f6fc31f25397f995bfa741de8f5962a5b444a84e2c1fa66e5fa53111183
SHA1 hash: b16a1465db7890d8865e26666cb187a73ad29e23
MD5 hash: 0cad3dbf5f55a2930a84bbf7bf1a568d
humanhash: maine-neptune-item-two
File name:Rooming list.exe
Download: download sample
Signature RemcosRAT
File size:1'147'904 bytes
First seen:2023-08-19 08:21:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:BSoUQ4BU6CXEFENRLBZE3RmZDWkhkz+t/cOlIoxXz1WvDuS7K:Ib4JBZEBam+t/zFX0LuEK
Threatray 494 similar samples on MalwareBazaar
TLSH T17C352355734D4E9BC9FE83BED0D0661447B0816B6A8AF3DF6C4E0B660D187DE6A0324B
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 866979b233d4d0ae (1 x RemcosRAT)
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
185.225.75.245:2404

Intelligence


File Origin
# of uploads :
1
# of downloads :
302
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
Rooming list.exe
Verdict:
Malicious activity
Analysis date:
2023-08-19 08:22:39 UTC
Tags:
rat remcos stealer keylogger

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
Launching a process
Creating a file
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
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:
obfuscated packed packed
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:
phis.troj.spyw.expl.evad
Score:
100 / 100
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 modify clipboard data
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
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 domain / URL
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Snort IDS alert for network traffic
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 AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1293790 Sample: Rooming_list.exe Startdate: 19/08/2023 Architecture: WINDOWS Score: 100 33 Snort IDS alert for network traffic 2->33 35 Multi AV Scanner detection for domain / URL 2->35 37 Found malware configuration 2->37 39 11 other signatures 2->39 7 Rooming_list.exe 1 2->7         started        process3 signatures4 41 Writes to foreign memory regions 7->41 43 Allocates memory in foreign processes 7->43 45 Injects a PE file into a foreign processes 7->45 10 vbc.exe 3 15 7->10         started        process5 dnsIp6 29 closen.kozow.com 185.225.75.245, 2404, 49710, 49711 MAYAKBG Germany 10->29 31 geoplugin.net 178.237.33.50, 49712, 80 ATOM86-ASATOM86NL Netherlands 10->31 25 C:\ProgramData\remcos\logs.dat, data 10->25 dropped 47 Contains functionality to bypass UAC (CMSTPLUA) 10->47 49 Contains functionality to steal Chrome passwords or cookies 10->49 51 Contains functionality to inject code into remote processes 10->51 53 5 other signatures 10->53 15 vbc.exe 1 10->15         started        18 vbc.exe 1 10->18         started        20 vbc.exe 1 10->20         started        22 23 other processes 10->22 file7 signatures8 process9 dnsIp10 55 Tries to steal Instant Messenger accounts or passwords 15->55 57 Tries to steal Mail credentials (via file / registry access) 15->57 27 192.168.2.1 unknown unknown 22->27 59 Tries to harvest and steal browser information (history, passwords, etc) 22->59 signatures11
Threat name:
Win32.Trojan.Generic
Status:
Suspicious
First seen:
2023-08-19 08:22:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
18 of 24 (75.00%)
Threat level:
  2/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost rat
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Uses the VBS compiler for execution
Remcos
Malware Config
C2 Extraction:
closen.kozow.com:2404
Unpacked files
SH256 hash:
fd61d6b61e399f290ee5f2887104bb44fa750615f49bbb1a9f8da37d64eede3f
MD5 hash:
3a571e60df32781aaf5bec2b319545bf
SHA1 hash:
5ffdab66cb8a334e751122e536a0b5c633d4125b
SH256 hash:
d3d4d1b8f646644f62cb1178807cb3c6fcbe1b8c326beeeb73c5a821ef34d052
MD5 hash:
dc3c8e512949eed6cc1a6cd7c1af803d
SHA1 hash:
39a0f23dc1ede603d031b35b0a358c607c7cc784
Detections:
Remcos win_remcos_auto
SH256 hash:
8dd8b145ec24876f20be6dcbf4818b5e6d38a2b5cba55d19ea5590d14208d787
MD5 hash:
0cad3dbf5f55a2930a84bbf7bf1a568d
SHA1 hash:
b16a1465db7890d8865e26666cb187a73ad29e23
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:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:iexplorer_remcos
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_EXE_Packed_SmartAssembly
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:NET
Author:malware-lu
Rule name:pe_imphash
Rule name:Remcos
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:ThreadControl__Context
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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.

Comments