MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f3cfe8c3bf473c8603e31287ebe7ed5511a2fc03e9257d159951a3f716a91ce6. 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: 19


Intelligence 19 IOCs YARA 8 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f3cfe8c3bf473c8603e31287ebe7ed5511a2fc03e9257d159951a3f716a91ce6
SHA3-384 hash: 1d9bc8b6ebeab22cb624306c8c810b089a5db1cddba900d7d7a5a10759e9688931b99f88c12e7eef1bf9fa305e598522
SHA1 hash: 6418dd94d0e83b218c65d6ac57243dc64eac5c34
MD5 hash: 1a6b314dc2f5c411dd904437b3f6c938
humanhash: golf-september-uranus-tango
File name:1a6b314dc2f5c411dd904437b3f6c938
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:480'768 bytes
First seen:2022-09-16 07:58:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 5d354883fe6f15fcf48045037a99fb7a (118 x RemcosRAT)
ssdeep 12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSnn9:uiLJbpI7I2WhQqZ7n9
TLSH T17BA4AE02BAD2C072D57161344D2AEB35DABDBD202835997B73E61D5BFD30180A73A7B2
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 zbetcheckin
Tags:32 exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
315
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
redline
Create hunting rule
ID:
1
File name:
http://81.161.229.110/htdocs/
Verdict:
Malicious activity
Analysis date:
2022-09-15 10:26:27 UTC
Tags:
opendir loader keylogger trojan rat redline remcos stealer avemaria nanocore arkei warzone evasion quasar agenttesla
Link:
https://app.any.run/tasks/0a842668-3faf-4537-92e9-cefbdaa63612

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/310477/
Detection(s):
Win.Trojan.Remcos-9841897-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Creating a window
Running batch commands
Setting a keyboard event handler
Launching a process
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/37838/overview
Behaviour
MalwareBazaar
MeasuringTime
CheckCmdLine
EvasionQueryPerformanceCounter
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd.exe eventvwr.exe fingerprint greyware keylogger rat shell32.dll
Link:
https://www.filescan.io/uploads/63242d11b564f001cc8d4775/reports/b28d5990-fbf9-423b-8454-0791e4f27012/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/cc0a7148-3131-428c-823d-9712b5762223
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1071464
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Found evasive API chain (may stop execution after checking mutex)
Installs a global keyboard hook
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 704007 Sample: JTNESH268R.exe Startdate: 16/09/2022 Architecture: WINDOWS Score: 100 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus detection for dropped file 2->42 44 Antivirus / Scanner detection for submitted sample 2->44 46 4 other signatures 2->46 9 JTNESH268R.exe 5 5 2->9         started        13 stationwin2.exe 2->13         started        15 stationwin2.exe 2->15         started        17 stationwin2.exe 2->17         started        process3 file4 32 C:\Users\user\AppData\...\stationwin2.exe, PE32 9->32 dropped 34 C:\Users\...\stationwin2.exe:Zone.Identifier, ASCII 9->34 dropped 36 C:\Users\user\AppData\Local\...\install.vbs, data 9->36 dropped 56 Contains functionality to steal Chrome passwords or cookies 9->56 58 Contains functionality to steal Firefox passwords or cookies 9->58 60 Delayed program exit found 9->60 19 wscript.exe 1 9->19         started        signatures5 process6 process7 21 cmd.exe 1 19->21         started        process8 23 stationwin2.exe 3 4 21->23         started        27 conhost.exe 21->27         started        dnsIp9 38 51.210.137.26, 2404, 49707, 49708 OVHFR France 23->38 48 Antivirus detection for dropped file 23->48 50 Multi AV Scanner detection for dropped file 23->50 52 Machine Learning detection for dropped file 23->52 54 3 other signatures 23->54 29 svchost.exe 23->29         started        signatures10 process11 signatures12 62 Found evasive API chain (may stop execution after checking mutex) 29->62 64 Contains functionality to steal Chrome passwords or cookies 29->64 66 Contains functionality to steal Firefox passwords or cookies 29->66 68 Delayed program exit found 29->68
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f3cfe8c3bf473c8603e31287ebe7ed5511a2fc03e9257d159951a3f716a91ce6/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2022-09-16 07:59:10 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6ph6rq57i46ima7dckd6xz7nkui2f7ad5esx2fmzkgr7ofvjdtta._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:static_win2 persistence rat
Link:
https://tria.ge/reports/220916-jvdymsagfk/
Behaviour
Modifies registry class
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
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
51.210.137.26:2404
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/236c229c-c00b-4873-a0ca-1f031ed4da89
Unpacked files
SH256 hash:
f3cfe8c3bf473c8603e31287ebe7ed5511a2fc03e9257d159951a3f716a91ce6
MD5 hash:
1a6b314dc2f5c411dd904437b3f6c938
SHA1 hash:
6418dd94d0e83b218c65d6ac57243dc64eac5c34
Detections:
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/5d5ee6e0-a648-46a0-aec6-f1be508e50d4/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f3cfe8c3bf47/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/f3cfe8c3bf473c8603e31287ebe7ed5511a2fc03e9257d159951a3f716a91ce6

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:RansomwareTest4
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:RansomwareTest5
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:RansomwareTest6
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:Record_Breaker_Similarities
Create hunting rule
Author:DigitalPanda
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
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.

Web download

RemcosRAT

Executable exe f3cfe8c3bf473c8603e31287ebe7ed5511a2fc03e9257d159951a3f716a91ce6

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2304972/
Cape
Cape
https://www.capesandbox.com/analysis/310477/

Comments


Avatar
zbet commented on 2022-09-16 07:59:06 UTC

url : hxxp://81.161.229.110/htdocs/yRHAbNfDWARkKtC.exe