MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a175371e9373a87e16ced87d403fb50247705163ea786a5eba3209cb66ed4390. 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 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a175371e9373a87e16ced87d403fb50247705163ea786a5eba3209cb66ed4390
SHA3-384 hash: d8ff085e0994611a225fe3b7aee2d10010dc84f2f363a30b706899c9051edc1f992795864184e1b269f9ba590114b587
SHA1 hash: bfb619c64db6473bf8dbbf91c75a430945707ab3
MD5 hash: b1db2292ba6cdddc3237f97f0ee0324f
humanhash: snake-quebec-oklahoma-batman
File name:17020384843af0d57b8c47e4f7c45e8ba4414521303dd4972bbccb99aeb71a0d3645cbebd8676.dat-decoded
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:494'592 bytes
First seen:2023-12-08 12:28:07 UTC
Last seen:2024-04-17 14:33:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 8d5087ff5de35c3fbb9f212b47d63cad (170 x RemcosRAT)
ssdeep 6144:y/7iPrcL3ArwhBq7Kjsn9iHGXg0lwGS9MNNhdFvPxps9gsAOZZuAXec7k7ov:y/uPq3AfK496Gw0lwGXN3pvs/ZuR8v
TLSH T164B49E01BAD2C072D57514300D3AF776EABCBD202826497BB3D61D5BFE31190B62A6B7
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 abuse_ch
Tags:base64-decoded exe RemcosRAT


Avatar
abuse_ch
Malware dropped as base64 encoded payload

Intelligence

File Origin
# of uploads :
2
# of downloads :
304
Origin country :
DE DE
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/463579/
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
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Sending a custom TCP request
Sending an HTTP GET request
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control evasive exploit explorer fingerprint greyware hook keylogger lolbin remcos shell32
Link:
https://www.filescan.io/uploads/65730c0eeba1080314875aec/reports/86d6eded-076e-467c-bc6f-59fb23fa90ff/overview
Verdict:
Malicious
Labled as:
Backdoor.Remcos
Link:
https://www.hybrid-analysis.com/sample/a175371e9373a87e16ced87d403fb50247705163ea786a5eba3209cb66ed4390
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/8430da2b-9eee-4f21-b3aa-a1483be5ae5b
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1356197
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 domain / URL
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
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a175371e9373a87e16ced87d403fb50247705163ea786a5eba3209cb66ed4390
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a175371e9373a87e16ced87d403fb50247705163ea786a5eba3209cb66ed4390/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2023-10-09 12:04:06 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
33 of 37 (89.19%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uf2tohutoouh4fwo3b6uap5vajdxauld5j4guxv2gie4wzxnioia._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost
Link:
https://tria.ge/reports/231208-pqcsnsdh31/
Behaviour
Suspicious use of SetWindowsHookEx
Malware Config
C2 Extraction:
sembe.duckdns.org:14645
Unpacked files
SH256 hash:
a175371e9373a87e16ced87d403fb50247705163ea786a5eba3209cb66ed4390
MD5 hash:
b1db2292ba6cdddc3237f97f0ee0324f
SHA1 hash:
bfb619c64db6473bf8dbbf91c75a430945707ab3
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
win_remcos_rat_unpacked
Create hunting rule
Link:
https://www.unpac.me/results/6b192262-1d5b-4bba-8d1f-7c358b372da5/
Parent samples :
52e86b12783755a700ee53510574a5a3d99ecf2bfa5468438a5addef9bfe75c4
a175371e9373a87e16ced87d403fb50247705163ea786a5eba3209cb66ed4390
f4eaa74eb268a58cff6f5d37607758bd49cc00af060da799857ae10cfd59efb2
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a175371e9373/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/a175371e9373a87e16ced87d403fb50247705163ea786a5eba3209cb66ed4390

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.
Rule name:win_remcos_w0
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Create hunting rule
Author:Matthew @ Embee_Research

File information

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

3af0d57b8c47e4f7c45e8ba4414521303dd4972bbccb99aeb71a0d3645cbebd8

RemcosRAT

Executable exe a175371e9373a87e16ced87d403fb50247705163ea786a5eba3209cb66ed4390

(this sample)

  
Dropped by
SHA256 3af0d57b8c47e4f7c45e8ba4414521303dd4972bbccb99aeb71a0d3645cbebd8
  
Dropped by
MD5 853c04a0494a2256e063583a4aab465b
  
URLhaus
https://urlhaus.abuse.ch/url/2738818/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/463579/

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