MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a9391048b93070a9917724955f78d6946074d241ed6c543ad0f36243830ee02b. 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 4 File information Comments

SHA256 hash: a9391048b93070a9917724955f78d6946074d241ed6c543ad0f36243830ee02b
SHA3-384 hash: 75151d3c2de51d214b622e19b158f452d41b5ddbde52081c54fcde6af24cc14cb45d9b78a1bf384f6f7a5b6b99598467
SHA1 hash: d6d64f16cb2b558d6e6fd11deb65015476ac2be3
MD5 hash: fcd76d547a1104890068db7a865c16d7
humanhash: neptune-delta-item-fillet
File name:April Statement - 22387.exe
Download: download sample
Signature RemcosRAT
File size:885'611 bytes
First seen:2022-05-10 09:02:09 UTC
Last seen:2022-05-10 09:37:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 12288:yO5RW8vc3VscL6DGnNsjOUwge0I0QSMsrAZu1kxyq+2U/k:yO54F3VKGK7wgeadM5ZuTR9/k
Threatray 1'209 similar samples on MalwareBazaar
TLSH T10615CFA868D76516C54ECC7EA85320C23E759E109B66A0F34F7875261E3F244C386BFB
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 c680da9a8a92fe06 (1 x RemcosRAT)
Reporter GovCERT_CH
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
250
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
April Statement - 22387.exe
Verdict:
Malicious activity
Analysis date:
2022-05-10 09:07:14 UTC
Tags:
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 window
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Sending a custom TCP request
DNS 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
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe 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 URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
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)
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.RemcosRAT
Status:
Malicious
First seen:
2022-05-10 07:03:22 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
20 of 41 (48.78%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost persistence rat
Behaviour
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
172.94.88.13:5888
Unpacked files
SH256 hash:
211f0ad2fc3087ea862d30f5d1e1efc07ff131ff9cfd548aa6e158ddd231c500
MD5 hash:
a1952b712a59797f74c7312b321692f3
SHA1 hash:
c86ef6e5e71aed88e1fde4d900be9118f592a267
SH256 hash:
85b6ab786e2734cf0bbc6b5008363b6829978b43a4b84b493ca25d8e5dd10fc4
MD5 hash:
6604897b0923e0badf2c95017fc04016
SHA1 hash:
7a3335a905270c54841e747f68534b2d042455c8
Detections:
win_remcos_auto
SH256 hash:
a9391048b93070a9917724955f78d6946074d241ed6c543ad0f36243830ee02b
MD5 hash:
fcd76d547a1104890068db7a865c16d7
SHA1 hash:
d6d64f16cb2b558d6e6fd11deb65015476ac2be3
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_rat
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
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 a9391048b93070a9917724955f78d6946074d241ed6c543ad0f36243830ee02b

(this sample)

  
Dropped by
RemcosRAT
  
Delivery method
Distributed via e-mail attachment

Comments