MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 538b607c03aa2d0960c396529399921f957f421a3ca084d140316e2ee21889cc. 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: 13


Intelligence 13 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 538b607c03aa2d0960c396529399921f957f421a3ca084d140316e2ee21889cc
SHA3-384 hash: 7dc60fefa7820d271b63c391c1c560c3646ad047876fd8d8ea940a1d5681a6874067f91b0eb10dd269b32206d2b947ec
SHA1 hash: 85623a3ed6c13e545391799189789bb90cecaa9f
MD5 hash: e8ba6aeac4ae8bd22e2da73a2e142104
humanhash: floor-timing-lithium-missouri
File name:538b607c03aa2d0960c396529399921f957f421a3ca084d140316e2ee21889cc.bin
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'721'128 bytes
First seen:2023-04-17 07:02:05 UTC
Last seen:2023-04-17 07:44:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash aa1aadf245c81cf32c06c49d2b88f3ab (1 x RemcosRAT)
ssdeep 49152:KMB7dVnp3UdOddfxpdkSZlrLJ2gBOn+xYiWi:KMzV1iOdd5pvZvsn+Ki
Threatray 1'825 similar samples on MalwareBazaar
TLSH T19485AE552989CE99C641AF34C0E1EA39023DDE512C090903BED87FE67A32FCE7865E57
TrID 42.7% (.EXE) Win32 Executable (generic) (4505/5/1)
19.2% (.EXE) OS/2 Executable (generic) (2029/13)
19.0% (.EXE) Generic Win/DOS Executable (2002/3)
18.9% (.EXE) DOS Executable Generic (2000/1)
File icon (PE):PE icon
dhash icon 006099919199e920 (1 x AveMariaRAT, 1 x RemcosRAT)
Reporter JAMESWT_WT
Tags:exe RemcosRAT signed

Code Signing Certificate

Organisation:Integrated Plotting Solutions Limited
Issuer:Sectigo Public Code Signing CA R36
Algorithm:sha384WithRSAEncryption
Valid from:2022-11-07T00:00:00Z
Valid to:2023-11-07T23:59:59Z
Serial number: 5294f0f841f29855e33a18402421949a
Intelligence: 2 malware samples on MalwareBazaar are signed with this code signing certificate
MalwareBazaar Blocklist:This certificate is on the MalwareBazaar code signing certificate blocklist (CSCB)
Cert Central Blocklist:This certificate is on the Cert Central blocklist
Thumbprint Algorithm:SHA256
Thumbprint: df744f6b9430237821e3f2bc6edafb4a92354dda1734a60d5e0d816256aefb47
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
248
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
538b607c03aa2d0960c396529399921f957f421a3ca084d140316e2ee21889cc - 副本.exe
Verdict:
No threats detected
Analysis date:
2023-04-07 05:28:21 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/527f61d5-0ba9-4f01-b842-2fa14118353d

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/382727/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.66278809.29975.1563.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Setting a keyboard event handler
Creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
greyware overlay packed remcos
Link:
https://www.filescan.io/uploads/643cef28000396b4e998eaa3/reports/cd2be9ab-0b9f-481c-bd64-5dff7138d631/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/538b607c03aa2d0960c396529399921f957f421a3ca084d140316e2ee21889cc
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.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7a774a82-5976-4eca-8f07-eb3b671e2733
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1215002
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Contains functionality to access PhysicalDrive, possible boot sector overwrite
Contains functionality to infect the boot sector
Found API chain indicative of sandbox detection
Found evasive API chain (may execute only if attached device has certain properties)
Found malware configuration
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/538b607c03aa2d0960c396529399921f957f421a3ca084d140316e2ee21889cc/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2023-04-06 08:18:21 UTC
File Type:
PE (Exe)
Extracted files:
64
AV detection:
13 of 20 (65.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kofwa7adviwqsygdszjjhgmsd6kx6qq2hsqijukagfxc5yqyrhga._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
1ad7a11b90fe0a21efb62ed36e1e9b1de9071cd6e73a59caca933aa81ea54d94
RemcosRAT
3a573796b5e6f1cc3a92eef7e268fa4e74aeddf34f5dd62f7b02109fe560ecd2
RemcosRAT
3d4ffcd1cd594f452ad1c374933eea8dd36d21a6d01372cc7f1afc636d26fa72
RemcosRAT
661c658fee6ad38a71803820b9eeb55f8cc9fb905117d55002d4da85696a26d2
RemcosRAT
76005c1982c2d4df1995d8ba0e2163ac84b5009823466b9e043a5a017e15c9cd
RemcosRAT
818bd67db5fe30f5cfdab861f996f30fa20427e3e1aa65ffe6d98f6c7af7558d
RemcosRAT
a2cbf70ab3ebedd2c768816596fade8e94d1dd0d6025001ac59a71860e45b808
RemcosRAT
a4da37e92ca54c8851ad144fba875b61e2018f69bbe43b11926d8f8d831b56f0
RemcosRAT
d631846a6b827332486abee9223f46c0beb25334d6722a8bf43641c4e32b5741
RemcosRAT
+ 1'815 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:logonui rat
Link:
https://tria.ge/reports/230417-hvcvxaeh8x/
Behaviour
Suspicious use of SetWindowsHookEx
Remcos
Malware Config
C2 Extraction:
45.137.116.253:443
Unpacked files
SH256 hash:
538b607c03aa2d0960c396529399921f957f421a3ca084d140316e2ee21889cc
MD5 hash:
e8ba6aeac4ae8bd22e2da73a2e142104
SHA1 hash:
85623a3ed6c13e545391799189789bb90cecaa9f
Link:
https://www.unpac.me/results/7b7573d1-7643-47c0-85db-a43ee02b4f67/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/538b607c03aa/report/overview.html
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: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:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
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/382727/

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