MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ac3a6ad13ede048573f561b04558c5b3e0e84a2a4af280b559794087018e369d. 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 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ac3a6ad13ede048573f561b04558c5b3e0e84a2a4af280b559794087018e369d
SHA3-384 hash: 02daf75dafd7e06996c8fb54398d847d05c3334ddbf2aa5e3c4cddb38651ccf93adb5c270bb3059cfd0d49e57859405f
SHA1 hash: b4483a96a83eaaff671e35c8ad9494541b1f1819
MD5 hash: 576b4d3d9aad213f9e89c7354194bf78
humanhash: four-eighteen-uncle-seventeen
File name:decode_f3932b52d30026ca8f7c14f62f77f596f809ac671466373b397038aa528e4d77
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:493'056 bytes
First seen:2023-08-15 14:50:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 04d77d421b8e5297898a3fce39d74267 (41 x RemcosRAT)
ssdeep 12288:tRXxReZj3WZfj/2eSseWFaIe2+f8CL47bs/ZO2LDU:tx7cyF2eSsewS8W47eZj
Threatray 2'456 similar samples on MalwareBazaar
TLSH T1CFA4AF02BAC1C072D57651300D2AF775DAF9BD20183A457BB3DA1D9BFD70190B63AAB2
TrID 32.2% (.EXE) Win64 Executable (generic) (10523/12/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4505/5/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon c4d48eaa8ad4d4f8 (1'000 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter jstrosch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
372
Origin country :
US US
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
decode_f3932b52d30026ca8f7c14f62f77f596f809ac671466373b397038aa528e4d77
Verdict:
Malicious activity
Analysis date:
2023-08-15 15:04:39 UTC
Tags:
rat remcos remote keylogger
Link:
https://app.any.run/tasks/f1ca1d71-2d45-47c2-a5a0-de0b70763a8b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/442897/
Detection(s):
Win.Trojan.Remcos-9841897-0
Create hunting rule

Win.Trojan.Remcos-10002580-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Setting a keyboard event handler
DNS request
Sending a custom TCP request
Creating a file
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/102914/overview
Behaviour
MalwareBazaar
MeasuringTime
CheckCmdLine
EvasionQueryPerformanceCounter
Gathering data
Verdict:
Malicious
Labled as:
Backdoor.Remcos
Link:
https://www.hybrid-analysis.com/sample/ac3a6ad13ede048573f561b04558c5b3e0e84a2a4af280b559794087018e369d
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/094e8b0f-1a01-4462-8dfe-2e13bccf512f
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1291554
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
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
Contains functionalty to change the wallpaper
Delayed program exit found
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
Sigma detected: Remcos
Uses dynamic DNS services
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ac3a6ad13ede048573f561b04558c5b3e0e84a2a4af280b559794087018e369d/
Threat name:
Win32.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2023-08-15 14:51:10 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vq5gvuj63ycik47vmgyekwgfwpqoqsrkjlzibnkzpfaioamog2oq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0e25b5299c3df59e05d296b1478d43094d5d81e1a5b8706fd355b36388244326
RemcosRAT
1c9708a7c1cca2ffb1fb6711828553521a81c313bd3dcefba441e546d2457e5d
RemcosRAT
29cbb0d27bbc787365e8c2aa11205b0218a178eda781bca644f8c77e55ad03c7
RemcosRAT
40495077a292c313a58d5d42004097acf6372f0ab3f7e20c14872e7623edf6a2
RemcosRAT
55b379ec8cd752f104605bdbd88048c1c3b49c328b393ba496494a118ef5ae16
RemcosRAT
67c7c5ec03b9334d1a132f2b0fd7ddc99515ccdb2372aa3b16463ea34d09f060
RemcosRAT
df906c77d802e4e977ff24b11e1840d6948338250023a27b2b30ad9ac6e3f4ba
RemcosRAT
e970fdbbcd35127388ad909820df33fbe5d0a7bd4b52ccde011c5782edfe03fc
RemcosRAT
f60667b9e2a0a25221cdb47844149beb3b1cd08abbc3360e8684fad9d8aaa20e
RemcosRAT
f82c643baf10986a8ad197d2565b7a093aa1eef8b9d4463f4a42d3cc81a45b8f
RemcosRAT
+ 2'446 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:new-28jul
Link:
https://tria.ge/reports/230815-r77eqadb5w/
Behaviour
Suspicious use of SetWindowsHookEx
Malware Config
C2 Extraction:
procesjudicial2.duckdns.org:2254
Unpacked files
SH256 hash:
ac3a6ad13ede048573f561b04558c5b3e0e84a2a4af280b559794087018e369d
MD5 hash:
576b4d3d9aad213f9e89c7354194bf78
SHA1 hash:
b4483a96a83eaaff671e35c8ad9494541b1f1819
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/3ad8cd47-ca68-4c91-88e5-b77c70d70a99/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ac3a6ad13ede/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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/442897/

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