MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aa8f0cb77774a1f43eefe9952ce8750a2398b6f85abcd11c974ba8fd0c74b30a. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: aa8f0cb77774a1f43eefe9952ce8750a2398b6f85abcd11c974ba8fd0c74b30a
SHA3-384 hash: f2f671e958255d132a37eeecf6bf43504546eb2ace452ce37bb795df9d28615f106c8c5445a472464b213dc1e398affd
SHA1 hash: e23b2b40b33f1c633fb5b62ecb177f8de9d5f84f
MD5 hash: e191d3582e7361069121ae5beb9a8667
humanhash: six-black-thirteen-fix
File name:aa8f0cb77774a1f43eefe9952ce8750a2398b6f85abcd11c974ba8fd0c74b30a
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:880'640 bytes
First seen:2023-03-08 13:24:00 UTC
Last seen:2023-03-08 14:31:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:g6cGFWz+QeT5mz7ppNmvfSpjIKHyvtfcGj/J:g9CWz+pT0z7ppIvKpjIEyvdLjB
Threatray 1'677 similar samples on MalwareBazaar
TLSH T10C1523E5232B577BCAB84BF314B02581137532376A02EF2E1D4946D85A12F02F946BFB
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 8060e0e080204000 (7 x AgentTesla, 6 x Formbook, 3 x Loki)
Reporter adrian__luca
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
217
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
aa8f0cb77774a1f43eefe9952ce8750a2398b6f85abcd11c974ba8fd0c74b30a
Verdict:
Malicious activity
Analysis date:
2023-03-08 13:22:50 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/2c645628-13f5-48e6-a8e4-693c5ae8327e

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/372585/
Detection(s):
Sanesecurity.Malware.28872.BadIN4.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/64088c74aa9d4ecc35bc362b/reports/04085df1-cfc6-4cf7-828f-068160f0ce06/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/aa8f0cb77774a1f43eefe9952ce8750a2398b6f85abcd11c974ba8fd0c74b30a
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d5c6675e-2676-4652-acd8-afaffbdec613
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1189453
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 822329 Sample: whTKhhmaSk.exe Startdate: 08/03/2023 Architecture: WINDOWS Score: 100 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus detection for URL or domain 2->48 50 Sigma detected: Scheduled temp file as task from temp location 2->50 52 7 other signatures 2->52 7 whTKhhmaSk.exe 7 2->7         started        11 vwgCsbYgrCu.exe 5 2->11         started        process3 file4 32 C:\Users\user\AppData\...\vwgCsbYgrCu.exe, PE32 7->32 dropped 34 C:\Users\...\vwgCsbYgrCu.exe:Zone.Identifier, ASCII 7->34 dropped 36 C:\Users\user\AppData\Local\...\tmpDF3F.tmp, XML 7->36 dropped 38 C:\Users\user\AppData\...\whTKhhmaSk.exe.log, ASCII 7->38 dropped 54 Uses schtasks.exe or at.exe to add and modify task schedules 7->54 56 Adds a directory exclusion to Windows Defender 7->56 58 Injects a PE file into a foreign processes 7->58 13 whTKhhmaSk.exe 2 16 7->13         started        18 powershell.exe 21 7->18         started        20 schtasks.exe 1 7->20         started        60 Multi AV Scanner detection for dropped file 11->60 62 Contains functionality to bypass UAC (CMSTPLUA) 11->62 64 Machine Learning detection for dropped file 11->64 66 3 other signatures 11->66 22 schtasks.exe 1 11->22         started        24 vwgCsbYgrCu.exe 11->24         started        signatures5 process6 dnsIp7 42 ziggynas10.ddns.net 194.5.98.58, 2340, 49715 DANILENKODE Netherlands 13->42 44 geoplugin.net 178.237.33.50, 49716, 80 ATOM86-ASATOM86NL Netherlands 13->44 40 C:\ProgramData\remcos\logs.dat, data 13->40 dropped 68 Installs a global keyboard hook 13->68 26 conhost.exe 18->26         started        28 conhost.exe 20->28         started        30 conhost.exe 22->30         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/aa8f0cb77774a1f43eefe9952ce8750a2398b6f85abcd11c974ba8fd0c74b30a/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-02-14 11:39:36 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
23 of 39 (58.97%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vkhqzn3xosq7ipxp5gksz2dvbirzrnxylk6nchexjoup2dduwmfa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
10e7d385a77db70e2905f90926006e74f0a0d5b4cd205d761056d84f70276daa
RemcosRAT
37ebb9622d13e5e8db8d9fa58aef6cfe9278877a18357a91a65022130892f8a6
RemcosRAT
7a2d285fe35b5030edfc71be23f97d3dc8ace48f6a7183135bd59c14d8dfd33f
RemcosRAT
8b6a0f607c8aa32a95838d10b496bdbd68b86a457ef49f8043badb21f5b12b2a
RemcosRAT
9172e039e1e9412067ba121f93ec85c4883992eefe71438b6b02e0635152732d
RemcosRAT
e9b9ee1dc81aa5f6446ae52d861ae97fd211a3ccf58746e7154ce384457d3460
RemcosRAT
f7298d0fd7a37ec9a02c0ea92c682f5778c8624b0093f51130096a8309f13d83
RemcosRAT
+ 1'667 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost rat
Link:
https://tria.ge/reports/230308-qnyssshf5z/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Remcos
Malware Config
C2 Extraction:
ziggynas10.ddns.net:2340
Unpacked files
SH256 hash:
c7b8f8665d3669fecec00c09e001af2f45079e36837d36a5a2acb4449aa4020e
MD5 hash:
7b303d8e391f16e3df29b6409777f5c1
SHA1 hash:
5b6242d176fef524f3787a64ff31c1fd9f2781a0
Link:
https://www.unpac.me/results/77b77515-c193-475a-a781-fe232208c423/
SH256 hash:
5aa65d463101f5205d9ebeb90f64a42fc6a9c67f90e41a1a33a30295d25bac62
MD5 hash:
4a3bb154281f7f97d76f2bc1f458b650
SHA1 hash:
1594fca9092fb829ee76e2cacf209b717e06daf4
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/77b77515-c193-475a-a781-fe232208c423/
SH256 hash:
37909aea87005744892f1ab0bec252747ac6da34df5284d4234c642aa0445e58
MD5 hash:
a0928bf23d9fa78320cc2f7f0b639441
SHA1 hash:
e7af29db07d61da7f1ae16ba85bbf6ea9a803a11
Link:
https://www.unpac.me/results/77b77515-c193-475a-a781-fe232208c423/
SH256 hash:
46cb32256dba295b72212185d3bf29e54de9f78fe32a8e43c82288285c3bf721
MD5 hash:
453d8d23d417dacecac4ad0235d2b420
SHA1 hash:
6aaffef79f32f151aef9d5c548ac9055ea6c2f35
Link:
https://www.unpac.me/results/77b77515-c193-475a-a781-fe232208c423/
SH256 hash:
8f0c7e3047346b8d6477ff6d4639fd6157602c7ebc840f3432b99263f1cb415c
MD5 hash:
e5b073b30db1b058298f5df032164e4d
SHA1 hash:
15d3ada4e7ac01b766615b9b66785e7e2ae9b0ca
Link:
https://www.unpac.me/results/77b77515-c193-475a-a781-fe232208c423/
SH256 hash:
aa8f0cb77774a1f43eefe9952ce8750a2398b6f85abcd11c974ba8fd0c74b30a
MD5 hash:
e191d3582e7361069121ae5beb9a8667
SHA1 hash:
e23b2b40b33f1c633fb5b62ecb177f8de9d5f84f
Link:
https://www.unpac.me/results/77b77515-c193-475a-a781-fe232208c423/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/aa8f0cb77774/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/aa8f0cb77774a1f43eefe9952ce8750a2398b6f85abcd11c974ba8fd0c74b30a

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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/372585/

Comments