MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0263f401d5624ac940224924776925bf38008ebdda2ea5135e66db9c3e5758ad. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments

SHA256 hash: 0263f401d5624ac940224924776925bf38008ebdda2ea5135e66db9c3e5758ad
SHA3-384 hash: b638f481b72f9358d7b519f5ab2ccf4e20f3176085ccf33ef4abd72bd0511663e8e87bb50389771bbe57dff3e22813fa
SHA1 hash: 3b4a3b7a9279dcc039337f43119b22694cb338c6
MD5 hash: b9df5818eb24d26dd3aa91d733c948ba
humanhash: nuts-minnesota-floor-twenty
File name:TaskAudio Driver.exe
Download: download sample
Signature RemcosRAT
File size:1'456'640 bytes
First seen:2021-01-14 17:37:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 751599d89157a16c03825f3309ef258f (1 x RemcosRAT)
ssdeep 24576:OJaKrV4gEC+ycSVTqPejUQ1YvP7Qs5IwVIc9:uZz2eqIleF+ZI
Threatray 1'402 similar samples on MalwareBazaar
TLSH F9656B32BE8E8C77C0271A344C5FA765A53ABE503924485BA7F44D1CDF3A7907C162AB
Reporter o2genum
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
130
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
TaskAudio Driver.exe
Verdict:
Malicious activity
Analysis date:
2021-01-14 17:37:58 UTC
Tags:
installer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Sending a UDP request
Transferring files using the Background Intelligent Transfer Service (BITS)
DNS request
Sending a custom TCP request
Creating a file in the %temp% directory
Enabling the 'hidden' option for files in the %temp% directory
Moving a file to the %temp% directory
Launching cmd.exe command interpreter
Creating a file in the %AppData% subdirectories
Creating a file
Unauthorized injection to a system process
Setting a global event handler for the keyboard
Enabling autorun by creating a file
Result
Threat name:
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Detected Remcos RAT
Drops executable to a common third party application directory
Hijacks the control flow in another process
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 339835 Sample: TaskAudio Driver.exe Startdate: 14/01/2021 Architecture: WINDOWS Score: 100 30 Malicious sample detected (through community Yara rule) 2->30 32 Detected Remcos RAT 2->32 34 Yara detected Remcos RAT 2->34 7 TaskAudio Driver.exe 2->7         started        process3 signatures4 36 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 7->36 38 Hijacks the control flow in another process 7->38 40 Writes to foreign memory regions 7->40 42 Allocates memory in foreign processes 7->42 10 notepad.exe 7->10         started        process5 signatures6 44 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 10->44 46 Hijacks the control flow in another process 10->46 48 Writes to foreign memory regions 10->48 50 Maps a DLL or memory area into another process 10->50 13 cmd.exe 10->13         started        16 cmd.exe 2 17 10->16         started        process7 dnsIp8 52 Contains functionalty to change the wallpaper 13->52 54 Contains functionality to steal Chrome passwords or cookies 13->54 56 Contains functionality to capture and log keystrokes 13->56 62 3 other signatures 13->62 28 51.222.10.175, 49734, 5861 OVHFR France 16->28 20 C:\Users\user\AppData\Roaming\...\mdrs.exe, PE32 16->20 dropped 22 C:\Users\user\AppData\...\libcrypto-1_1.dll, PE32 16->22 dropped 24 C:\Users\user\AppData\Local\...\cghelp.dll, PE32 16->24 dropped 26 C:\Users\user\AppData\...\RuntimeBroker.exe, PE32 16->26 dropped 58 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 16->58 60 Drops executable to a common third party application directory 16->60 file9 signatures10
Result
Malware family:
Score:
  10/10
Tags:
family:remcos rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Blocklisted process makes network request
Remcos
Malware Config
C2 Extraction:
51.222.10.175:5861
Unpacked files
SH256 hash:
c7fbdc61eb62c05e40295617e2db75877672931f751a770d2629e6eab6075f2c
MD5 hash:
abf6c724b20844d5b0073988a58faf1e
SHA1 hash:
7a8269d5b2ae623f8148ce9863f48f7e12ce036b
SH256 hash:
0263f401d5624ac940224924776925bf38008ebdda2ea5135e66db9c3e5758ad
MD5 hash:
b9df5818eb24d26dd3aa91d733c948ba
SHA1 hash:
3b4a3b7a9279dcc039337f43119b22694cb338c6
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:crime_win32_rat_parralax_shell_bin
Author:@VK_Intel
Description:Detects Parallax injected code
Reference:https://twitter.com/VK_Intel/status/1257714191902937088
Rule name:MAL_crime_win32_rat_parallax_shell_bin
Author:@VK_Intel
Description:Detects Parallax injected code
Reference:https://twitter.com/VK_Intel/status/1257714191902937088

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

RemcosRAT

Executable exe 0263f401d5624ac940224924776925bf38008ebdda2ea5135e66db9c3e5758ad

(this sample)

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