MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 73ff4330d94b2b189d52e8129a1ee362185700f3e811355cbb6022944da5b78c. 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: 73ff4330d94b2b189d52e8129a1ee362185700f3e811355cbb6022944da5b78c
SHA3-384 hash: 451a419da7423472513b0a6f0b1e7136919c6df9ac005e8ce36da06b03da405992068387d24ef20f1f37e0cc347942b6
SHA1 hash: 71c398ac09427f22869cdb6d83a891d8617c4886
MD5 hash: 3e10d7e784512fdf6f80f46f58835025
humanhash: hot-december-connecticut-sad
File name:3e10d7e784512fdf6f80f46f58835025
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:480'768 bytes
First seen:2022-09-16 08:14:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 5d354883fe6f15fcf48045037a99fb7a (118 x RemcosRAT)
ssdeep 12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSan9:uiLJbpI7I2WhQqZ7a9
TLSH T1B0A4AE02BAD2C072D57161344D2AE735DABDBD202835997BB3E61D5BFD30180A73A7B2
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 :
303
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
avemaria
Create hunting rule
ID:
1
File name:
http://81.161.229.110/htdocs/
Verdict:
Malicious activity
Analysis date:
2022-09-15 10:02:41 UTC
Tags:
opendir loader evasion trojan snake stealer rat avemaria arkei warzone nanocore asyncrat quasar keylogger remcos
Link:
https://app.any.run/tasks/59c3580f-a513-4e9f-991d-b16d585ec27d

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/310485/
Detection(s):
Win.Trojan.Remcos-9841897-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
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:
  7/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/37845/overview
Behaviour
MalwareBazaar
MeasuringTime
CheckMutex
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/632430a236ccf428b25ef536/reports/21aada31-2b60-4497-a7a6-e7a2ab7b17f9/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/7eeb599c-6000-4c97-9a63-f0baf632b639
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1071478
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
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
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 704021 Sample: KGSWnpLtq5.exe Startdate: 16/09/2022 Architecture: WINDOWS Score: 100 42 Malicious sample detected (through community Yara rule) 2->42 44 Antivirus detection for dropped file 2->44 46 Antivirus / Scanner detection for submitted sample 2->46 48 6 other signatures 2->48 9 KGSWnpLtq5.exe 5 5 2->9         started        13 stationwin.exe 1 1 2->13         started        15 stationwin.exe 1 1 2->15         started        17 stationwin.exe 1 1 2->17         started        process3 file4 36 C:\Users\user\AppData\...\stationwin.exe, PE32 9->36 dropped 38 C:\Users\...\stationwin.exe:Zone.Identifier, ASCII 9->38 dropped 40 C:\Users\user\AppData\Local\...\install.vbs, data 9->40 dropped 50 Contains functionality to steal Chrome passwords or cookies 9->50 52 Contains functionality to steal Firefox passwords or cookies 9->52 54 Delayed program exit found 9->54 19 wscript.exe 1 9->19         started        56 Writes to foreign memory regions 13->56 58 Maps a DLL or memory area into another process 13->58 21 iexplore.exe 13->21         started        23 iexplore.exe 15->23         started        25 iexplore.exe 17->25         started        signatures5 process6 process7 27 cmd.exe 1 19->27         started        process8 29 stationwin.exe 2 1 27->29         started        32 conhost.exe 27->32         started        signatures9 60 Antivirus detection for dropped file 29->60 62 Machine Learning detection for dropped file 29->62 64 Writes to foreign memory regions 29->64 66 Maps a DLL or memory area into another process 29->66 34 iexplore.exe 29->34         started        process10
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/73ff4330d94b2b189d52e8129a1ee362185700f3e811355cbb6022944da5b78c/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2022-09-16 08:15:09 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
22 of 25 (88.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=op7ugmgzjmvrrhks5ajjuhxdmimfoaht5aitkxf3marjitnfw6ga._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:static_win1 persistence rat
Link:
https://tria.ge/reports/220916-j5jxmsfbc3/
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/7208823f-514a-481a-bdbd-2462d55adc3c
Unpacked files
SH256 hash:
73ff4330d94b2b189d52e8129a1ee362185700f3e811355cbb6022944da5b78c
MD5 hash:
3e10d7e784512fdf6f80f46f58835025
SHA1 hash:
71c398ac09427f22869cdb6d83a891d8617c4886
Detections:
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/52bd5355-3827-464e-b986-9aacc401f03e/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/73ff4330d94b/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/73ff4330d94b2b189d52e8129a1ee362185700f3e811355cbb6022944da5b78c

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 73ff4330d94b2b189d52e8129a1ee362185700f3e811355cbb6022944da5b78c

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/310485/
  
URLhaus
https://urlhaus.abuse.ch/url/2305006/

Comments


Avatar
zbet commented on 2022-09-16 08:14:14 UTC

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