MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 77b9a0c1a2227c43cf08700532888479d5dc29067277625745a151804f96cd44. 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 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 77b9a0c1a2227c43cf08700532888479d5dc29067277625745a151804f96cd44
SHA3-384 hash: 24eaa830745aa594432c7750c3139e2307da8678b0865a969bb18cdf46d51295a42ca01c76d09fb0d912058114591ade
SHA1 hash: 9314ebf50907dbe3592f693122c8609cdbab3e13
MD5 hash: c9bad87f14e2fa7872bd26796e81ec0e
humanhash: bacon-william-black-ink
File name:xoiHrcDMQ2n5.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:494'592 bytes
First seen:2023-10-02 17:04:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 8d5087ff5de35c3fbb9f212b47d63cad (170 x RemcosRAT)
ssdeep 6144:K/7iPrcL3ArwhBq7Kjsn9iHGXg0lwGS9MNNhdFvPxps9gsAOZZuAXec7Av7ov:K/uPq3AfK496Gw0lwGXN3pvs/ZuJv8v
Threatray 2'627 similar samples on MalwareBazaar
TLSH T121B49E01BAD2C072D57514300D36F776EABCBD202826497BB3DA1D5BFE31190B62A6B7
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 pmelson
Tags:exe remcos RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
309
Origin country :
US US
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/452717/
Detection(s):
Win.Trojan.Remcos-9841897-0
Create hunting rule

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Setting a keyboard event handler
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Creating a file
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control evasive exploit explorer fingerprint greyware keylogger lolbin shell32
Link:
https://www.filescan.io/uploads/651af83f49c6a4ce497ffcfa/reports/3b4c1b96-fa52-43bc-ae03-e58c274b90ea/overview
Verdict:
Malicious
Labled as:
Backdoor.Remcos
Link:
https://www.hybrid-analysis.com/sample/77b9a0c1a2227c43cf08700532888479d5dc29067277625745a151804f96cd44
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/3c52d278-5d47-4260-9b03-ddb578b32328
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1318160
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 register a low level keyboard hook
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
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/77b9a0c1a2227c43cf08700532888479d5dc29067277625745a151804f96cd44/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2023-10-02 17:05:06 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
22 of 23 (95.65%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=o642bqncej6ehtyioactfceephk5ykigoj3wev2fufiyat4wzvca._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
30423662efb2bc06468689cd76e932013950d6fd8646f072ebedea0df0a1fd4d
RemcosRAT
327946233fb8a8dba8e47aa58499a1d06b50fc635d9ec674156617a039d7e85a
RemcosRAT
6483ccee0337b0393c9799ca324992b61655cf331cb31c79edcf3f1160e95148
RemcosRAT
81e133f9aae32be3ff7a818fe7fa37eea017740c139e825641cf50dfaaa2a0a9
RemcosRAT
914741181590f27bfb7f365db3e72c8a65e3b1744a80d614ef568b10f059fb46
RemcosRAT
9bf55d8f3b892e6b8706ec526eaa51cc8a1a727b45759494e2e388979a5708b8
RemcosRAT
d1e1c9332fa8a6bd045fd4ccfa11055a4e17d1cad72239aab2400870191c4185
RemcosRAT
d31044022de445b61ba735083a47c5fd1f4d5c8dfcf544da489572ce3fafdc79
RemcosRAT
e029bc85866faf62332458961316cf1561c335b06076936f9e1ae87cbc0a868e
RemcosRAT
ea9723cd4dfeb319cedc75c0dd4cb5fa326b995580aee939085780092aafcda9
RemcosRAT
+ 2'617 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:trabjo-gente
Link:
https://tria.ge/reports/231002-vlt42sda31/
Behaviour
Modifies registry class
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
Deletes itself
Malware Config
C2 Extraction:
war.bumbleshrimp.com:3337
Unpacked files
SH256 hash:
77b9a0c1a2227c43cf08700532888479d5dc29067277625745a151804f96cd44
MD5 hash:
c9bad87f14e2fa7872bd26796e81ec0e
SHA1 hash:
9314ebf50907dbe3592f693122c8609cdbab3e13
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/84a30722-e5db-4859-89b4-78b3232a0a9c/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/77b9a0c1a222/report/overview.html
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/77b9a0c1a2227c43cf08700532888479d5dc29067277625745a151804f96cd44

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:DebuggerCheck__QueryInfo
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.
Rule name:win_remcos_rat_unpacked
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

RemcosRAT

Executable exe 77b9a0c1a2227c43cf08700532888479d5dc29067277625745a151804f96cd44

(this sample)

  
Link
https://www.virustotal.com/gui/file/77b9a0c1a2227c43cf08700532888479d5dc29067277625745a151804f96cd44/detection
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/452717/

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