MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b6985a0568fb69f8598bba6ab1b7468768d089fc3b84ca82ff5710530486264. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1b6985a0568fb69f8598bba6ab1b7468768d089fc3b84ca82ff5710530486264
SHA3-384 hash: 67769f69464755bedee075a69ce32155cd9406892fba7b22e036b812edded67ba37e3125c179b0ab71b2ab6ff5007335
SHA1 hash: 1f299f2ed627d5d60654ffd814aede22c2e2488d
MD5 hash: 774809cf03d8fb29897c212249d13d6a
humanhash: oregon-paris-whiskey-spaghetti
File name:774809cf03d8fb29897c212249d13d6a
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:892'928 bytes
First seen:2022-07-28 17:33:04 UTC
Last seen:2022-07-28 18:40:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 24576:+Hg0oPfb6YEV913qYCoCimzVMNJwjpOx4Ky:+HgrbhKF4gJwUOK
TLSH T11C15236863818596E6FF937C8800C070A738D64277A5C2627BD155BE38D73B34FA16EB
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.3% (.SCR) Windows screen saver (13101/52/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter zbetcheckin
Tags:32 exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
409
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/294963/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.38260.23576.9663.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
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
Running batch commands
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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/426cbb8d-d9d6-4153-81ed-8b36a54b15dc
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1042675
Signature
.NET source code contains potential unpacker
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Injects a PE file into a foreign processes
Installs a global keyboard hook
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 675169 Sample: Ys8Dl5TmVW Startdate: 28/07/2022 Architecture: WINDOWS Score: 100 50 Malicious sample detected (through community Yara rule) 2->50 52 Antivirus detection for URL or domain 2->52 54 Antivirus detection for dropped file 2->54 56 8 other signatures 2->56 10 Ys8Dl5TmVW.exe 3 2->10         started        14 os.exe 2 2->14         started        16 os.exe 2 2->16         started        process3 file4 44 C:\Users\user\AppData\...\Ys8Dl5TmVW.exe.log, ASCII 10->44 dropped 60 Contains functionality to steal Chrome passwords or cookies 10->60 62 Contains functionality to inject code into remote processes 10->62 64 Contains functionality to steal Firefox passwords or cookies 10->64 66 Delayed program exit found 10->66 18 Ys8Dl5TmVW.exe 4 4 10->18         started        68 Injects a PE file into a foreign processes 14->68 21 os.exe 14->21         started        23 os.exe 16->23         started        signatures5 process6 file7 38 C:\Users\user\AppData\Roaming\os.exe, PE32 18->38 dropped 40 C:\Users\user\...\os.exe:Zone.Identifier, ASCII 18->40 dropped 42 C:\Users\user\AppData\Local\...\install.vbs, data 18->42 dropped 25 wscript.exe 1 18->25         started        process8 process9 27 cmd.exe 1 25->27         started        process10 29 os.exe 3 27->29         started        32 conhost.exe 27->32         started        signatures11 70 Multi AV Scanner detection for dropped file 29->70 72 Machine Learning detection for dropped file 29->72 74 Injects a PE file into a foreign processes 29->74 34 os.exe 2 1 29->34         started        process12 dnsIp13 46 clearvisoingraphicsremcoz.ddns.net 37.0.8.138, 3542 WKD-ASIE Netherlands 34->46 48 192.168.2.1 unknown unknown 34->48 58 Installs a global keyboard hook 34->58 signatures14
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1b6985a0568fb69f8598bba6ab1b7468768d089fc3b84ca82ff5710530486264/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2022-07-27 09:28:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dnuylicwr63j7bmyxotkwg3unb3i2ce7yo4ezkbp6vyqkmcimjsa._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:xp_host persistence rat
Link:
https://tria.ge/reports/220728-v4xb5ahga9/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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:
clearvisoingraphicsremcoz.ddns.net:3542
Unpacked files
SH256 hash:
44743dda09e3d58941f2330a4e3d11641a9cd1cb41306f30dd2575a17ccaec19
MD5 hash:
4e48d643ecc61d79cbff0d725c81ad88
SHA1 hash:
9c53f29dcfb790898ec9d90b8a77547064786e4e
Link:
https://www.unpac.me/results/217d4c87-a92b-4572-a307-f83fd098d800/
SH256 hash:
806badbc46562870aaa9b04620a932944a6d58e5f107ebcccf0e2f69f9290fbe
MD5 hash:
b690f04b76add6f991feb24ba1645c0f
SHA1 hash:
71700b1a9ed5ce39c1b0490b7226c52d2cccbf20
Link:
https://www.unpac.me/results/217d4c87-a92b-4572-a307-f83fd098d800/
SH256 hash:
6d582baa224aba22ac3d0a90913a9d706b36315d0e85abca09b520c05fb0cb5e
MD5 hash:
c8efa9f4d3584139736aeeaf914c6e83
SHA1 hash:
71079dce747039899c12756aa7624e68a3a04b1c
Detections:
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/217d4c87-a92b-4572-a307-f83fd098d800/
SH256 hash:
0a1c433525b6f4b5d2dad2b3e5dab4f5806418138b191bcd53348058c0259afc
MD5 hash:
e67b7af739696247ac5e0318eba33475
SHA1 hash:
6980baf3748685baf234f7638485e37ec1d5f362
Link:
https://www.unpac.me/results/217d4c87-a92b-4572-a307-f83fd098d800/
SH256 hash:
1b6985a0568fb69f8598bba6ab1b7468768d089fc3b84ca82ff5710530486264
MD5 hash:
774809cf03d8fb29897c212249d13d6a
SHA1 hash:
1f299f2ed627d5d60654ffd814aede22c2e2488d
Link:
https://www.unpac.me/results/217d4c87-a92b-4572-a307-f83fd098d800/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1b6985a0568f/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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
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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 1b6985a0568fb69f8598bba6ab1b7468768d089fc3b84ca82ff5710530486264

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2262315/
Cape
Cape
https://www.capesandbox.com/analysis/294963/

Comments


Avatar
zbet commented on 2022-07-28 17:33:16 UTC

url : hxxp://45.85.190.156/321/vbc.exe