MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 536e19198d8723feea5c3ebfa3f87c785c6b2e23d83a79b73c0977b27460dbf1. 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 5 File information Comments

SHA256 hash: 536e19198d8723feea5c3ebfa3f87c785c6b2e23d83a79b73c0977b27460dbf1
SHA3-384 hash: 18ccf539768e4a5b428a244b64189fc11dacc6432b9cb8a51a185fcb06545d273d3a8c58395349d44402407b159a2e20
SHA1 hash: 3c2b2f8e7eddd1b6ff803a4de1d7a8e5549b8021
MD5 hash: 30ca02340fe862ea4493afec6edff8e8
humanhash: vegan-item-black-solar
File name:SecuriteInfo.com.Gen.Variant.Nemesis.7190.21106.30399
Download: download sample
Signature RemcosRAT
File size:553'549 bytes
First seen:2022-11-17 06:34:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 29b61e5a552b3a9bc00953de1c93be41 (174 x Formbook, 82 x AgentTesla, 81 x Loki)
ssdeep 12288:WA6iuFVxzjfuqr2gqtIhI7WCELqGM2vOtrWPjeU:JWFV5jnqgZKsqAvOtrWPjX
Threatray 1'186 similar samples on MalwareBazaar
TLSH T1CBC4236321E8A4A3EFC705394C9BC47DCA7B812211787CD30BBD6E5BEE27907856605B
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon f4f679b179698cd4 (17 x RemcosRAT, 4 x SnakeKeylogger, 2 x NanoCore)
Reporter SecuriteInfoCom
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
212
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
SecuriteInfo.com.Gen.Variant.Nemesis.7190.21106.30399
Verdict:
Malicious activity
Analysis date:
2022-11-17 06:37:58 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
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Setting a keyboard event handler
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
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.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Uses dynamic DNS services
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 748210 Sample: SecuriteInfo.com.Gen.Varian... Startdate: 17/11/2022 Architecture: WINDOWS Score: 100 46 Multi AV Scanner detection for domain / URL 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus detection for URL or domain 2->50 52 6 other signatures 2->52 7 SecuriteInfo.com.Gen.Variant.Nemesis.7190.21106.30399.exe 18 2->7         started        10 cqjwb.exe 2->10         started        13 cqjwb.exe 2->13         started        process3 file4 28 C:\Users\user\AppData\Local\...\hmxaubj.exe, PE32 7->28 dropped 15 hmxaubj.exe 1 2 7->15         started        56 Antivirus detection for dropped file 10->56 58 Multi AV Scanner detection for dropped file 10->58 60 Maps a DLL or memory area into another process 10->60 19 cqjwb.exe 10->19         started        21 cqjwb.exe 13->21         started        signatures5 process6 file7 32 C:\Users\user\AppData\Roaming\...\cqjwb.exe, PE32 15->32 dropped 38 Antivirus detection for dropped file 15->38 40 Multi AV Scanner detection for dropped file 15->40 42 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->42 44 4 other signatures 15->44 23 hmxaubj.exe 2 16 15->23         started        signatures8 process9 dnsIp10 34 ucremcz1.ddns.net 185.216.71.149, 1823, 49695 CLOUDCOMPUTINGDE Germany 23->34 36 geoplugin.net 178.237.33.50, 49696, 80 ATOM86-ASATOM86NL Netherlands 23->36 30 C:\Users\user\AppData\Roaming\...\logs.dat, data 23->30 dropped 54 Installs a global keyboard hook 23->54 file11 signatures12
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2022-11-17 01:38:50 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:uc persistence rat
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
ucremcz1.ddns.net:1823
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
335f5f886aa20e48fb92bb4b6a03b5e3aa255227100314e6d607b1b615bd94f7
MD5 hash:
fe0b6ef7899c739d4899f75c281d4835
SHA1 hash:
f2fe29d528c64d9d4babd806863b4634a6820902
SH256 hash:
c2296809155417083c5c50349b1c817a942c72a3411251fbcd6900558be81ed1
MD5 hash:
2dbb39ff68e2110693f6fa79a766c3be
SHA1 hash:
6eccdf701150d004c49aff4070f0f34c16ae1a0b
Detections:
Remcos win_remcos_auto
SH256 hash:
536e19198d8723feea5c3ebfa3f87c785c6b2e23d83a79b73c0977b27460dbf1
MD5 hash:
30ca02340fe862ea4493afec6edff8e8
SHA1 hash:
3c2b2f8e7eddd1b6ff803a4de1d7a8e5549b8021
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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Remcos
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
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