MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f55af4e1b592a12334c4434887b9bfd7429b4218e9c4b3b7cef3e345f4489f06. 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: 14


Intelligence 14 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f55af4e1b592a12334c4434887b9bfd7429b4218e9c4b3b7cef3e345f4489f06
SHA3-384 hash: ed500e4337b5b8d0d42ece3990f171bf519dd21a6a43a05341b6b8a958336a6065cb60910d9658db4d81454140861426
SHA1 hash: 7d684ad86d93362002a6d21455f0e7986883ede2
MD5 hash: 7da00d767d77a1e0baf6a1d4576cf173
humanhash: carbon-pasta-oxygen-sad
File name:Professional CV.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:563'243 bytes
First seen:2022-12-08 10:48:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash ab6770b0a8635b9d92a5838920cfe770 (84 x Formbook, 30 x AgentTesla, 15 x Loki)
ssdeep 12288:gaMhjAriHbIoM/NKCCVj3HTMiypdK54AzX0J3v:gaMggbCKCqzHTMvKuskJ/
TLSH T156C42363D7C470F3E44352B68AB6A763E064F716A176B4A6AF340F339E623D5E812047
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
194
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/344272/
Detection(s):
SecuriteInfo.com.Win32.CrypterX-gen.13695.988.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Searching for the window
Сreating synchronization primitives
Setting a keyboard event handler
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6391c11e04e0e79bdf417887/reports/5f6201e2-357a-4c4f-a78d-38c8967ac314/overview
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/505a2203-3a82-4fce-89c7-fb64a7feea19
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1130624
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Uses dynamic DNS services
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 763348 Sample: Professional CV.exe Startdate: 08/12/2022 Architecture: WINDOWS Score: 100 52 Multi AV Scanner detection for domain / URL 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Antivirus detection for URL or domain 2->56 58 6 other signatures 2->58 7 Professional CV.exe 19 2->7         started        10 plgrhulfhnvtgw.exe 1 2->10         started        13 plgrhulfhnvtgw.exe 1 2->13         started        process3 file4 36 C:\Users\user\AppData\Local\...\izspkwfa.exe, PE32 7->36 dropped 15 izspkwfa.exe 1 3 7->15         started        60 Multi AV Scanner detection for dropped file 10->60 19 WerFault.exe 4 10 10->19         started        21 conhost.exe 10->21         started        23 WerFault.exe 10 13->23         started        25 conhost.exe 13->25         started        signatures5 process6 file7 40 C:\Users\user\AppData\...\plgrhulfhnvtgw.exe, PE32 15->40 dropped 46 Multi AV Scanner detection for dropped file 15->46 48 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->48 50 Maps a DLL or memory area into another process 15->50 27 izspkwfa.exe 2 17 15->27         started        32 conhost.exe 15->32         started        34 izspkwfa.exe 15->34         started        signatures8 process9 dnsIp10 42 drremcoz1.ddns.net 185.246.220.39, 1307, 49715, 49722 LVLT-10753US Germany 27->42 44 geoplugin.net 178.237.33.50, 49718, 80 ATOM86-ASATOM86NL Netherlands 27->44 38 C:\ProgramData\remcos\logs.dat, data 27->38 dropped 62 Installs a global keyboard hook 27->62 file11 signatures12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f55af4e1b592a12334c4434887b9bfd7429b4218e9c4b3b7cef3e345f4489f06/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-12-07 13:46:53 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
18 of 26 (69.23%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6vnpjynvskqsgngeineipon725bjwqqy5hclhn6o6prul5cit4da._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost persistence rat
Link:
https://tria.ge/reports/221208-mwnq1scf8s/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
drremcoz1.ddns.net:1307
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/55fa14ae-6693-4506-a957-2259e2a34b6c
Unpacked files
SH256 hash:
683efe74532bed30e1f0a73e9e7485e2d11e444b7766cd7d2611d84ecc79fa22
MD5 hash:
c5124d216e7b0f383ba7e05b69d84379
SHA1 hash:
9e07ed49d15d00e15d5b603e2b74902284cb560a
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/9d35143d-87f5-4a93-9a7e-2fcd9b1ffb5f/
Parent samples :
d2153ad12373ea7fab1232d8e957da465e2a7a6b5439f34d9ba6e3e177ab6c76
45cd8dd797af4fd769eef00243134c46c38bd9e65e15d7bd2e9b834d5e8b3095
f23af58c2cf4e24dc720b940dfcbb7a12793de187354f892b8ee9cbec7c3332e
38e450e0f888c722ba57ed39900759397ede821614371832456b7fa29143aaba
f55af4e1b592a12334c4434887b9bfd7429b4218e9c4b3b7cef3e345f4489f06
a5d0f96c465bc9f36b29fb88333dc996f63c39ec6ed8cc2acb5a5b36ad31500f
SH256 hash:
e7f200b95e0e7d7276a3f6bbfda1b27f14a5dd89cc36d414819197866df63dc1
MD5 hash:
482256f61042530722f057269600a69a
SHA1 hash:
a88cff3841c84fa03d2090ff50d24d8116cb10e8
Link:
https://www.unpac.me/results/9d35143d-87f5-4a93-9a7e-2fcd9b1ffb5f/
SH256 hash:
f55af4e1b592a12334c4434887b9bfd7429b4218e9c4b3b7cef3e345f4489f06
MD5 hash:
7da00d767d77a1e0baf6a1d4576cf173
SHA1 hash:
7d684ad86d93362002a6d21455f0e7986883ede2
Link:
https://www.unpac.me/results/9d35143d-87f5-4a93-9a7e-2fcd9b1ffb5f/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f55af4e1b592/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/f55af4e1b592a12334c4434887b9bfd7429b4218e9c4b3b7cef3e345f4489f06

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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/344272/

Comments