MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f5c63fbbf956263891daefd4ae18360cdb945bae61d696645955e546311bc845. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f5c63fbbf956263891daefd4ae18360cdb945bae61d696645955e546311bc845
SHA3-384 hash: 1226e485c7ef470a1b41dd0292a19c55be761468b7dc862da11dd78ccac468988d9b5c66f5f5d80aab63cb79527892c8
SHA1 hash: 8347f689ca3655d17237ee164a8e2b1c83f0cbba
MD5 hash: c4d9cfc543a401d4752d4b48422ea059
humanhash: apart-yankee-zulu-arizona
File name:file
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'033'216 bytes
First seen:2023-02-15 14:58:38 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'642 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 12288:f5KFQmymXknLaxx0PA1oGOMWuBOL7Mzwy0hIHpyhkHwXwopUU35vZ6sapRuT5GQ:hKbUkRjmkwytJyhKwTpUwKRuT5J
TLSH T11125F10B2DC267A2C4D58C74F7A944E823F44E5B1524E79F2DC832E8DEB974A66031B7
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 98a2a6a08383a200 (9 x RemcosRAT, 3 x Formbook, 1 x AgentTesla)
Reporter jstrosch
Tags:.NET exe MSIL RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
207
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-02-15 15:03:15 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b9a1f863-78ca-4edb-8ade-82aebfa40c9f

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/366682/
Detection(s):
SecuriteInfo.com.Variant.MSILHeracles.64696.27294.25461.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Creating a window
Running batch commands
Launching a process
Creating a file
Enabling autorun
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed remcos
Link:
https://www.filescan.io/uploads/63ecf33b846a958a5816800d/reports/a9dcfb29-322c-4146-9bdf-ac7a81b2ad31/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f5c63fbbf956263891daefd4ae18360cdb945bae61d696645955e546311bc845
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5ea4657a-1b3e-4b16-b055-1342c0a46a38
Result
Threat name:
DarkTortilla, Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1176344
Signature
.NET source code contains very large array initializations
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected DarkTortilla Crypter
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 809150 Sample: file.exe Startdate: 16/02/2023 Architecture: WINDOWS Score: 100 39 www.google.com 2->39 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus detection for URL or domain 2->49 51 Multi AV Scanner detection for dropped file 2->51 53 7 other signatures 2->53 8 file.exe 15 4 2->8         started        signatures3 process4 dnsIp5 45 www.google.com 142.250.203.100, 443, 49692, 49703 GOOGLEUS United States 8->45 37 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 8->37 dropped 57 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->57 13 cmd.exe 1 8->13         started        16 cmd.exe 3 8->16         started        file6 signatures7 process8 file9 59 Uses ping.exe to sleep 13->59 61 Uses ping.exe to check the status of other devices and networks 13->61 19 reg.exe 1 1 13->19         started        22 PING.EXE 1 13->22         started        25 conhost.exe 13->25         started        33 C:\Users\user\AppData\Roaming\...\jgckhg.exe, PE32 16->33 dropped 35 C:\Users\user\...\jgckhg.exe:Zone.Identifier, ASCII 16->35 dropped 27 conhost.exe 16->27         started        29 PING.EXE 1 16->29         started        31 PING.EXE 1 16->31         started        signatures10 process11 dnsIp12 55 Creates an undocumented autostart registry key 19->55 41 127.0.0.1 unknown unknown 22->41 43 192.168.2.1 unknown unknown 22->43 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f5c63fbbf956263891daefd4ae18360cdb945bae61d696645955e546311bc845/
Threat name:
ByteCode-MSIL.Trojan.Pwsx
Create hunting rule
Status:
Malicious
First seen:
2023-02-15 07:28:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
62
AV detection:
20 of 39 (51.28%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6xdd7o7zkytdreo257kk4gbwbtnziw5omhljmzczkxsummi3zbcq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
n/a
Score:
  10/10
Tags:
persistence
Link:
https://tria.ge/reports/230215-scqn6aca9z/
Behaviour
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Executes dropped EXE
Modifies WinLogon for persistence
Unpacked files
SH256 hash:
f5c63fbbf956263891daefd4ae18360cdb945bae61d696645955e546311bc845
MD5 hash:
c4d9cfc543a401d4752d4b48422ea059
SHA1 hash:
8347f689ca3655d17237ee164a8e2b1c83f0cbba
Link:
https://www.unpac.me/results/fce3b03e-2ea4-41d4-9446-a5e7a0f71257/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f5c63fbbf956/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/f5c63fbbf956263891daefd4ae18360cdb945bae61d696645955e546311bc845

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.

Web download

RemcosRAT

Executable exe f5c63fbbf956263891daefd4ae18360cdb945bae61d696645955e546311bc845

(this sample)

  
Delivery method
Distributed via web download
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2539950/
Cape
Cape
https://www.capesandbox.com/analysis/366682/

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