MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 94ad9a52ad59b1368c435cc1237918cec7826080b724bba5a63880829c96b064. 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: 9


Intelligence 9 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 94ad9a52ad59b1368c435cc1237918cec7826080b724bba5a63880829c96b064
SHA3-384 hash: a0c300807ee53528c113f69fad15740ab4dd4b5a736345fe434f89e9eff168d38e6db4a48b8fc04d179afc66db3427a9
SHA1 hash: 13f8ce6b84f28f1814ab9cf61b896a76590082c5
MD5 hash: 9aeeb584d6881d02a52dd1e28436a6d9
humanhash: mango-thirteen-cola-fanta
File name:9aeeb584d6881d02a52dd1e28436a6d9.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:427'520 bytes
First seen:2020-11-20 07:43:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'475 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:dGuT3Aw+wMsCWgMXjdU92eOjCBZS61pEDFJRjPiGE8eGtMrkIdfUcq:13Aw+NMJU8ekCBZSEpEJCGE8eGarko
Threatray 1'151 similar samples on MalwareBazaar
TLSH 7A941B076BC64AA0CA71F4B793ECD5F953B0F1DB0B0057AB020956E2EE473D6290F699
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
97
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Launching cmd.exe command interpreter
Creating a process from a recently created file
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.
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/543798
Signature
.NET source code contains very large array initializations
Connects to many ports of the same IP (likely port scanning)
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Creates an autostart registry key pointing to binary in C:\Windows
Creates an undocumented autostart registry key
Detected Remcos RAT
Drops executables to the windows directory (C:\Windows) and starts them
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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 cmd line tools excessively to alter registry or file data
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 320996 Sample: juOFdCSmBX.exe Startdate: 20/11/2020 Architecture: WINDOWS Score: 100 78 Malicious sample detected (through community Yara rule) 2->78 80 Multi AV Scanner detection for submitted file 2->80 82 Detected Remcos RAT 2->82 84 4 other signatures 2->84 11 juOFdCSmBX.exe 5 2->11         started        15 svshost.exe 2->15         started        process3 file4 70 C:\Users\user\AppData\...\juOFdCSmBX.exe.log, ASCII 11->70 dropped 96 Hides that the sample has been downloaded from the Internet (zone.identifier) 11->96 17 cmd.exe 1 11->17         started        19 cmd.exe 2 11->19         started        signatures5 process6 file7 22 sytem32.exe 3 17->22         started        26 conhost.exe 17->26         started        68 C:\Users\user\AppData\Roaming\...\sytem32.exe, PE32 19->68 dropped 28 conhost.exe 19->28         started        process8 dnsIp9 74 192.168.2.1 unknown unknown 22->74 86 Multi AV Scanner detection for dropped file 22->86 88 Uses cmd line tools excessively to alter registry or file data 22->88 90 Contains functionality to steal Chrome passwords or cookies 22->90 92 5 other signatures 22->92 30 sytem32.exe 4 4 22->30         started        34 cmd.exe 1 22->34         started        36 cmd.exe 1 22->36         started        38 7 other processes 22->38 signatures10 process11 dnsIp12 72 C:\Windows\SysWOW64\License\svshost.exe, PE32 30->72 dropped 100 Creates an autostart registry key pointing to binary in C:\Windows 30->100 41 wscript.exe 1 30->41         started        102 Uses cmd line tools excessively to alter registry or file data 34->102 43 reg.exe 1 1 34->43         started        46 conhost.exe 34->46         started        48 conhost.exe 36->48         started        50 reg.exe 1 36->50         started        76 k55nfjeasa.ad-center.marketing 185.222.57.210, 48019, 49707 ROOTLAYERNETNL Netherlands 38->76 52 conhost.exe 38->52         started        54 reg.exe 1 38->54         started        56 conhost.exe 38->56         started        58 9 other processes 38->58 file13 signatures14 process15 signatures16 60 cmd.exe 41->60         started        94 Creates an undocumented autostart registry key 43->94 process17 signatures18 98 Drops executables to the windows directory (C:\Windows) and starts them 60->98 63 svshost.exe 60->63         started        66 conhost.exe 60->66         started        process19 signatures20 104 Multi AV Scanner detection for dropped file 63->104 106 Hides that the sample has been downloaded from the Internet (zone.identifier) 63->106
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/94ad9a52ad59b1368c435cc1237918cec7826080b724bba5a63880829c96b064/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-11-17 04:17:11 UTC
AV detection:
19 of 29 (65.52%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=sswzuuvnlgytndcdltasg6iyz3dyeyeaw4slxjnghcaifhewwbsa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
15170d0dbe467efc4e38156ed4e03702ae19af44c100d7df7a75c6dbdb7ac587
RemcosRAT
29e976622956314e13cff9fce7e829a27827214ddcfd41ccd33fc4faca45b566
RemcosRAT
4791861118e0be776fd14153e2feca7d25f5a91a6c32a997385f5ae272e3d7c8
RemcosRAT
5b10f4a23880b51923a0df3e9e3c37f40eb0d3cc93de7b463da62f936a501385
RemcosRAT
622f7ee6cbf2416dcbc86cf3fc47133bc797edc5869642f161d61a3fad7b1d88
RemcosRAT
6c50d72da5ab733ffcc197ef2f403e4b490673164ea72012440fcbfa72ac31fc
RemcosRAT
73d81b006456f319cc451766b237a7b18cb902405ff47c3f5e9c9d6feb40047f
RemcosRAT
93d03d01d8db67b90274877ff9248f33af80094ced24376805ab660a670ea5bd
RemcosRAT
ca62c5cf8e6f3260dbe15a469e90197612af8843d897f65c7fdde87554ebae51
RemcosRAT
da7f542b91835ba3090350c2936641058c361e332eda9222f0674dfcbefd4ce9
RemcosRAT
+ 1'141 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/201120-4g1n28dlge/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Program crash
Drops file in System32 directory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Modifies WinLogon for persistence
Remcos
Malware Config
C2 Extraction:
k55nfjeasa.ad-center.marketing:48019
Unpacked files
SH256 hash:
94ad9a52ad59b1368c435cc1237918cec7826080b724bba5a63880829c96b064
MD5 hash:
9aeeb584d6881d02a52dd1e28436a6d9
SHA1 hash:
13f8ce6b84f28f1814ab9cf61b896a76590082c5
Link:
https://www.unpac.me/results/14a2b191-663b-4f14-a61f-829b9e297495/
SH256 hash:
6913a6a60bd645633ccadc69e112718b334e8342974e1ac42a9c29133b539ae7
MD5 hash:
d63d71b1efcb1998b972a151ad7c94d7
SHA1 hash:
234ab12f2279cb26d84c53511d578bfd1762870a
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/14a2b191-663b-4f14-a61f-829b9e297495/
SH256 hash:
4f690f3cf792f24a571f09740cf25d0979bde8c11180a26864056643c30479cd
MD5 hash:
304cc4a1948539064cfec5b70bd83e21
SHA1 hash:
32b3754f52323fd71b8349f01c9dd4bc4fecd880
Link:
https://www.unpac.me/results/14a2b191-663b-4f14-a61f-829b9e297495/
SH256 hash:
f9c341679423a3ac010b7da292ab6d1ef0ae7e995cd085ada95e1384ba3af38c
MD5 hash:
b1c72a8e99542c64507470535686ddd9
SHA1 hash:
fe3bec4b6e2b7091db68705feb59090c24c8b6ed
Link:
https://www.unpac.me/results/14a2b191-663b-4f14-a61f-829b9e297495/
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:ach_RemcosRAT
Create hunting rule
Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Create hunting rule
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Remcos
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
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:autogenerated rule brought to you by yara-signator

File information

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

Comments