MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 df5481a99a394e2019c2665fa75f4b81bb4cf0afcd5b7c268ea6f01988ece3fc. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: df5481a99a394e2019c2665fa75f4b81bb4cf0afcd5b7c268ea6f01988ece3fc
SHA3-384 hash: 1a46b076d773fabe1e3ebfbe8803c2fdb2b532e6c14169be5f7e7a3777f8d7a1d38387d1fe7722b1d1edbc32d3e50d9f
SHA1 hash: 14e4d495dd7c6d02424c16c8c57c5912a4db418d
MD5 hash: da6b84ba6274fb9988ec6416600b1444
humanhash: jupiter-spaghetti-indigo-robert
File name:df5481a99a394e2019c2665fa75f4b81bb4cf0afcd5b7c268ea6f01988ece3fc
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:635'917 bytes
First seen:2023-05-14 09:36:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 12288:AYAiFm60o0rQlhFPAGH0G4t9fnwLBZBTgCbHnl1/b:AYZFm6J0rQlYaFQnwdLcCbHn3
TLSH T1E5D4AC45D2C598DEE56377707C2FF9DC18639E3A4668AE869E263C252573E632033C0E
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 355135313c66a41c (1 x AgentTesla, 1 x RemcosRAT)
Reporter petikvx
Tags:RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
109
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
df5481a99a394e2019c2665fa75f4b81bb4cf0afcd5b7c268ea6f01988ece3fc
Verdict:
Malicious activity
Analysis date:
2023-05-14 09:38:13 UTC
Tags:
remcos
Link:
https://app.any.run/tasks/2fb40177-0c91-4972-a4f0-e8214845edd4

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/389321/
Detection(s):
SecuriteInfo.com.Variant.Cerbu.175522.21270.6339.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
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
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/84112/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
comodo nemesis overlay packed remcos shell32.dll
Link:
https://www.filescan.io/uploads/6460abc0c91c7e59599bb030/reports/b385e5fb-cf5c-4f37-8673-9a826bf22a7f/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/df5481a99a394e2019c2665fa75f4b81bb4cf0afcd5b7c268ea6f01988ece3fc
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/8fe6bbb1-8b20-4a23-b32a-0903be1c8fb6
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1232713
Signature
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
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
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
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
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/df5481a99a394e2019c2665fa75f4b81bb4cf0afcd5b7c268ea6f01988ece3fc/
Threat name:
Win32.Trojan.Nemesis
Create hunting rule
Status:
Malicious
First seen:
2023-05-09 09:15:03 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
28 of 37 (75.68%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=35kidkm2hfhcagocmzp2ox2lqg5uz4fpzvnxyjuou3ybtchm4p6a._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost persistence rat
Link:
https://tria.ge/reports/230514-llgdhsbd99/
Behaviour
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Remcos
Malware Config
C2 Extraction:
127.0.0.1:55433
185.65.134.166:55433
10.11.0.5:55433
45.128.234.54:55433
Unpacked files
SH256 hash:
805750afb91035a343b2695d45d2598e0b4a431c611057e5eb5ff8714b30f2ef
MD5 hash:
badead6a5a8710596211cf0d9d2fe0b1
SHA1 hash:
4d20cf9adf2e8845bbb1dcff4ffcb3b60614775b
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/55fe5146-6253-44f2-9ce1-09fde0a16333/
SH256 hash:
1cb673208a633482e523447524025bdae3941370067e9f3dcfd822e35d3c4d63
MD5 hash:
8b3b98017a650a621b116c84808ebfbc
SHA1 hash:
247e6bcbb9eb911766a8d649bb3670fee7eecd3c
Link:
https://www.unpac.me/results/55fe5146-6253-44f2-9ce1-09fde0a16333/
SH256 hash:
df5481a99a394e2019c2665fa75f4b81bb4cf0afcd5b7c268ea6f01988ece3fc
MD5 hash:
da6b84ba6274fb9988ec6416600b1444
SHA1 hash:
14e4d495dd7c6d02424c16c8c57c5912a4db418d
Link:
https://www.unpac.me/results/55fe5146-6253-44f2-9ce1-09fde0a16333/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/df5481a99a394e2019c2665fa75f4b81bb4cf0afcd5b7c268ea6f01988ece3fc

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
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Rule name:win_remcos_auto
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/389321/

Comments