MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 622f7ee6cbf2416dcbc86cf3fc47133bc797edc5869642f161d61a3fad7b1d88. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 622f7ee6cbf2416dcbc86cf3fc47133bc797edc5869642f161d61a3fad7b1d88
SHA3-384 hash: 29def41d636dd1ffbc1d66b991c8b93a2e2da6c3e19261e1161921cc0f481be64206acfcd9413531d4ea9c4dda9dd746
SHA1 hash: d17d498e590b2cce6553378088c05ef8472f61c1
MD5 hash: c8f6f42690addd613e0edcc113f3a7c9
humanhash: saturn-avocado-tennessee-speaker
File name:SecuriteInfo.com.BehavesLike.Win32.Generic.fh.32572
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:330'752 bytes
First seen:2020-11-20 02:17:20 UTC
Last seen:2020-11-20 02:52:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:ReVTEtnwzDzY9NZS61ptFJRjPiGE8eGtMrkIdfInt:ReVTEtnwzHANZSEpzCGE8eGarkoA
Threatray 1'145 similar samples on MalwareBazaar
TLSH 0464350B2AD341B0C680DD72B7EA91A851F486AF560AB7BB158597F1EF0138E36174F3
Reporter SecuriteInfoCom
Tags:RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
120
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Launching cmd.exe command interpreter
Creating a file
Creating a process from a recently created file
Launching a process
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun
Result
Verdict:
UNKNOWN
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/543724
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)
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: 320959 Sample: SecuriteInfo.com.BehavesLik... Startdate: 20/11/2020 Architecture: WINDOWS Score: 100 88 Malicious sample detected (through community Yara rule) 2->88 90 Multi AV Scanner detection for submitted file 2->90 92 Detected Remcos RAT 2->92 94 4 other signatures 2->94 11 SecuriteInfo.com.BehavesLike.Win32.Generic.fh.exe 5 2->11         started        15 svshost.exe 2->15         started        17 svshost.exe 2->17         started        process3 file4 82 SecuriteInfo.com.B....Generic.fh.exe.log, ASCII 11->82 dropped 116 Hides that the sample has been downloaded from the Internet (zone.identifier) 11->116 19 cmd.exe 1 11->19         started        21 cmd.exe 2 11->21         started        signatures5 process6 file7 24 Sytem.exe 3 19->24         started        27 conhost.exe 19->27         started        78 C:\Users\user\AppData\Roaming\...\Sytem.exe, PE32 21->78 dropped 29 conhost.exe 21->29         started        31 conhost.exe 21->31         started        33 reg.exe 21->33         started        process8 signatures9 108 Multi AV Scanner detection for dropped file 24->108 110 Uses cmd line tools excessively to alter registry or file data 24->110 112 Contains functionality to steal Chrome passwords or cookies 24->112 114 4 other signatures 24->114 35 Sytem.exe 4 4 24->35         started        38 Sytem.exe 3 24->38         started        41 cmd.exe 1 24->41         started        43 6 other processes 24->43 process10 dnsIp11 98 Creates an autostart registry key pointing to binary in C:\Windows 35->98 46 wscript.exe 1 35->46         started        80 C:\Windows\SysWOW64\License\svshost.exe, PE32 38->80 dropped 49 wscript.exe 38->49         started        100 Uses cmd line tools excessively to alter registry or file data 41->100 51 reg.exe 1 1 41->51         started        54 conhost.exe 41->54         started        84 k55nfjeasa.ad-center.marketing 185.222.57.210, 48019, 49718 ROOTLAYERNETNL Netherlands 43->84 56 conhost.exe 43->56         started        58 conhost.exe 43->58         started        60 reg.exe 1 43->60         started        62 5 other processes 43->62 file12 signatures13 process14 dnsIp15 86 192.168.2.1 unknown unknown 46->86 64 cmd.exe 46->64         started        66 cmd.exe 49->66         started        102 Creates an undocumented autostart registry key 51->102 signatures16 process17 signatures18 69 svshost.exe 64->69         started        72 conhost.exe 64->72         started        96 Drops executables to the windows directory (C:\Windows) and starts them 66->96 74 svshost.exe 66->74         started        76 conhost.exe 66->76         started        process19 signatures20 104 Multi AV Scanner detection for dropped file 69->104 106 Hides that the sample has been downloaded from the Internet (zone.identifier) 69->106
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/622f7ee6cbf2416dcbc86cf3fc47133bc797edc5869642f161d61a3fad7b1d88/
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2020-11-19 23:48:56 UTC
AV detection:
20 of 29 (68.97%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mixx5zwl6jaw3s6intz7yrythpdzp3ofq2lef4lb2ynd7ll3dwea._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
15170d0dbe467efc4e38156ed4e03702ae19af44c100d7df7a75c6dbdb7ac587
RemcosRAT
4791861118e0be776fd14153e2feca7d25f5a91a6c32a997385f5ae272e3d7c8
RemcosRAT
5b10f4a23880b51923a0df3e9e3c37f40eb0d3cc93de7b463da62f936a501385
RemcosRAT
6274c01dd6783517a68267d2c6c2af38143ed35074cfc2372d8bc385a7c5f4e9
RemcosRAT
6c882aeb918e424cefe1068a6d3fbff5526c31e185716bf3a0d5ae0295772f09
RemcosRAT
763d415415add2ffc6d482373e211c8c8b647ee46ade5e8dacce10f79d515e2b
RemcosRAT
936027b0c02941505eb900045a050c0806b30a8d49c7d34fff9eff42a8168b27
RemcosRAT
ba3395e7301ce7255a39782381436119ea73c2905f97f26185ededb0e57881d2
RemcosRAT
ca62c5cf8e6f3260dbe15a469e90197612af8843d897f65c7fdde87554ebae51
RemcosRAT
f412da03defe68cc6e1f264449adf519a4c5470c51e7b502854f7fbf358f8516
RemcosRAT
+ 1'135 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-aj81pcwb6a/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies registry class
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:
622f7ee6cbf2416dcbc86cf3fc47133bc797edc5869642f161d61a3fad7b1d88
MD5 hash:
c8f6f42690addd613e0edcc113f3a7c9
SHA1 hash:
d17d498e590b2cce6553378088c05ef8472f61c1
Link:
https://www.unpac.me/results/b3309d53-7037-4019-83d6-9762bf3bc6ac/
SH256 hash:
4f690f3cf792f24a571f09740cf25d0979bde8c11180a26864056643c30479cd
MD5 hash:
304cc4a1948539064cfec5b70bd83e21
SHA1 hash:
32b3754f52323fd71b8349f01c9dd4bc4fecd880
Link:
https://www.unpac.me/results/b3309d53-7037-4019-83d6-9762bf3bc6ac/
SH256 hash:
542282ed737d2cb55e3cb59d05e58e8dbf6473d63461194a9ba597f0f3eb5d75
MD5 hash:
0ab09caf48c9dcbcbd53aef80493abd2
SHA1 hash:
fd985c8ed98d443fde035be26592b92662b9c5ea
Link:
https://www.unpac.me/results/b3309d53-7037-4019-83d6-9762bf3bc6ac/
SH256 hash:
9790a6aa3d28d77d320c8f32938122c1212b7f6291daa7511f854a3fcd0fb037
MD5 hash:
6e53bc3c0364eefd1d448d25e026975d
SHA1 hash:
f11ea87b0638531f442b113feb19dbaae81ad518
Link:
https://www.unpac.me/results/b3309d53-7037-4019-83d6-9762bf3bc6ac/
SH256 hash:
96197f55710a81ab1e66a84f0ac9d7c146c3a79a8d6ce53b7d8d0493984cf586
MD5 hash:
7159032c713686155de46d52d4132c41
SHA1 hash:
1a4c5d1c4496792cd3036ffb8e17e5669da834cf
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/b3309d53-7037-4019-83d6-9762bf3bc6ac/
Parent samples :
622f7ee6cbf2416dcbc86cf3fc47133bc797edc5869642f161d61a3fad7b1d88
08d64c718925a60031cbc3bc7b431127b0097401d9d5e403136bd1394583a0be
f7e29cbf47c9804eb341836873ea6837be7a46639978f44d9ba2670d47e68d56
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.

Web download

RemcosRAT

Executable exe 622f7ee6cbf2416dcbc86cf3fc47133bc797edc5869642f161d61a3fad7b1d88

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/834685/
  
Delivery method
Distributed via web download

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