MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b45dbf75dd0de5a62cb362bcc26b59cdd6a7adae8a74c71c30e7db9c36b20265. 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: 16


Intelligence 16 IOCs YARA 4 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b45dbf75dd0de5a62cb362bcc26b59cdd6a7adae8a74c71c30e7db9c36b20265
SHA3-384 hash: d11c60dfd8d56317b911256e4e25c7d1e88a53b2975b0f61fe849b1097178af4fb6c9c41e0dcd15032801f06951e8fb3
SHA1 hash: e9be17c5254719a7d92c1c9c49041c448e1ed128
MD5 hash: f085472ec4d0a5e37534fc1e87233cf4
humanhash: pizza-london-grey-kitten
File name:f085472ec4d0a5e37534fc1e87233cf4
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:480'768 bytes
First seen:2022-09-11 07:40:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 5d354883fe6f15fcf48045037a99fb7a (118 x RemcosRAT)
ssdeep 12288:umnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSlgn9:WiLJbpI7I2WhQqZ7lg9
TLSH T161A4AE02BAD2C072D57161344D2AE735DABDBC212835997BB3E61D5BFD30180A73A7B2
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 :
357
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
f085472ec4d0a5e37534fc1e87233cf4
Verdict:
Malicious activity
Analysis date:
2022-09-11 07:45:05 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/89bab6dd-ca36-42e5-be0a-7b81e79f9fbb

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/309260/
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% directory
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
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/631d918dd94ccae4108d5f28/reports/8771a827-a4e1-4d7f-a407-72c77043def3/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/7aa39a0f-eb3a-4af0-ac57-75f614a8a089
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1068418
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: 700950 Sample: BxRJs68ccx.exe Startdate: 11/09/2022 Architecture: WINDOWS Score: 100 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus detection for dropped file 2->40 42 Antivirus / Scanner detection for submitted sample 2->42 44 4 other signatures 2->44 9 BxRJs68ccx.exe 4 4 2->9         started        13 testing.exe 2->13         started        15 testing.exe 2->15         started        process3 file4 30 C:\Users\user\AppData\Roaming\testing.exe, PE32 9->30 dropped 32 C:\Users\user\...\testing.exe:Zone.Identifier, ASCII 9->32 dropped 34 C:\Users\user\AppData\Local\...\install.vbs, data 9->34 dropped 54 Contains functionality to steal Chrome passwords or cookies 9->54 56 Contains functionality to steal Firefox passwords or cookies 9->56 58 Delayed program exit found 9->58 17 wscript.exe 1 9->17         started        signatures5 process6 process7 19 cmd.exe 1 17->19         started        process8 21 testing.exe 3 3 19->21         started        25 conhost.exe 19->25         started        dnsIp9 36 51.210.137.26, 2404, 49712, 49716 OVHFR France 21->36 46 Antivirus detection for dropped file 21->46 48 Multi AV Scanner detection for dropped file 21->48 50 Machine Learning detection for dropped file 21->50 52 3 other signatures 21->52 27 svchost.exe 21->27         started        signatures10 process11 signatures12 60 Found evasive API chain (may stop execution after checking mutex) 27->60 62 Contains functionality to steal Chrome passwords or cookies 27->62 64 Contains functionality to steal Firefox passwords or cookies 27->64 66 Delayed program exit found 27->66
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b45dbf75dd0de5a62cb362bcc26b59cdd6a7adae8a74c71c30e7db9c36b20265/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2022-09-10 00:42:04 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wro365o5bxs2mlftmk6me22zzxlkplnorj2mohbq47nzynvsajsq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:b3-7eye persistence rat
Link:
https://tria.ge/reports/220911-jh4crsfabm/
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
Unpacked files
SH256 hash:
b45dbf75dd0de5a62cb362bcc26b59cdd6a7adae8a74c71c30e7db9c36b20265
MD5 hash:
f085472ec4d0a5e37534fc1e87233cf4
SHA1 hash:
e9be17c5254719a7d92c1c9c49041c448e1ed128
Detections:
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/d4b2a476-83ff-4c01-a305-66b80558e33d/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b45dbf75dd0d/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/b45dbf75dd0de5a62cb362bcc26b59cdd6a7adae8a74c71c30e7db9c36b20265

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: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 b45dbf75dd0de5a62cb362bcc26b59cdd6a7adae8a74c71c30e7db9c36b20265

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2299284/
Cape
Cape
https://www.capesandbox.com/analysis/309260/

Comments


Avatar
zbet commented on 2022-09-11 07:40:59 UTC

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