MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf618789e2d59d7bb417670150e59434cbf04c0300847740718f03f89591af58. 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: 10


Intelligence 10 IOCs YARA 9 File information Comments

SHA256 hash: bf618789e2d59d7bb417670150e59434cbf04c0300847740718f03f89591af58
SHA3-384 hash: bebfd44a0cdebaae5707760ae7a546a683d258b881177460ef8997c94bd9b84b40e1d32c17b8eb0e9149e6955124d07e
SHA1 hash: 5a4439041cb45857deca2df9eedcadb4da6fc930
MD5 hash: 43cba30128a5b9347851bd3c230ebe5b
humanhash: alabama-spaghetti-sink-winner
File name:QUOTE#450009123.exe
Download: download sample
Signature RemcosRAT
File size:237'568 bytes
First seen:2020-11-30 08:03:40 UTC
Last seen:2020-12-10 08:19:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'477 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 3072:Lf3Rn/Y+WlIRIF3B9/IHvDaQF4vCwU9RHjpuR8PaXAXv52U1gEEbAhfmLlSgVZKU:ral7R9wHuxC5lPn5+d8mog3l3J1i48
Threatray 1'185 similar samples on MalwareBazaar
TLSH 7334121657C84733E7664177B8D0A9006A35AB80B881CFAA37DC590D2F72FC2E765B72
Reporter GovCERT_CH
Tags:RemcosRAT

Intelligence


File Origin
# of uploads :
40
# of downloads :
167
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the Windows subdirectories
Creating a file in the %temp% directory
Creating a file
Creating a process from a recently created file
Creating a process with a hidden window
Deleting a recently created file
Running batch commands
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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 MicroClip
Detection:
malicious
Classification:
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 steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Creates an autostart registry key pointing to binary in C:\Windows
Detected Remcos RAT
Detected unpacking (creates a PE file in dynamic memory)
Drops executables to the windows directory (C:\Windows) and starts them
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
Sigma detected: Suspicious Svchost Process
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected MicroClip
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 324482 Sample: QUOTE#450009123.exe Startdate: 30/11/2020 Architecture: WINDOWS Score: 100 60 Malicious sample detected (through community Yara rule) 2->60 62 Multi AV Scanner detection for submitted file 2->62 64 Detected Remcos RAT 2->64 66 4 other signatures 2->66 13 QUOTE#450009123.exe 3 2->13         started        17 msworrd.exe 2 2->17         started        19 msworrd.exe 2 2->19         started        process3 file4 56 C:\Users\user\...\QUOTE#450009123.exe.log, ASCII 13->56 dropped 82 Contains functionality to steal Chrome passwords or cookies 13->82 84 Contains functionality to capture and log keystrokes 13->84 86 Contains functionality to inject code into remote processes 13->86 88 Contains functionality to steal Firefox passwords or cookies 13->88 21 QUOTE#450009123.exe 4 5 13->21         started        90 Drops executables to the windows directory (C:\Windows) and starts them 17->90 92 Injects a PE file into a foreign processes 17->92 25 msworrd.exe 17->25         started        27 msworrd.exe 17->27         started        29 msworrd.exe 19->29         started        signatures5 process6 file7 52 C:\Windows\SysWOW64\mssofficee\msworrd.exe, PE32 21->52 dropped 54 C:\Windows\...\msworrd.exe:Zone.Identifier, ASCII 21->54 dropped 74 Creates an autostart registry key pointing to binary in C:\Windows 21->74 31 wscript.exe 1 21->31         started        signatures8 process9 process10 33 cmd.exe 1 31->33         started        process11 35 msworrd.exe 3 33->35         started        38 conhost.exe 33->38         started        signatures12 68 Multi AV Scanner detection for dropped file 35->68 70 Detected unpacking (creates a PE file in dynamic memory) 35->70 72 Injects a PE file into a foreign processes 35->72 40 msworrd.exe 35->40         started        process13 dnsIp14 58 89.249.74.213, 40511, 49756, 49759 M247GB United Kingdom 40->58 76 Writes to foreign memory regions 40->76 78 Allocates memory in foreign processes 40->78 80 Injects a PE file into a foreign processes 40->80 44 svchost.exe 40->44         started        signatures15 process16 process17 46 iexplore.exe 44->46         started        process18 48 iexplore.exe 46->48         started        50 iexplore.exe 46->50         started       
Threat name:
ByteCode-MSIL.Trojan.DelShad
Status:
Malicious
First seen:
2020-11-30 08:04:06 UTC
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos persistence rat
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
Suspicious behavior: GetForegroundWindowSpam
Drops file in System32 directory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
89.249.74.213:40511
Unpacked files
SH256 hash:
5142c2d22ddeeecfa1ab8bcb80ebe559d2f120479bf80242f09ed70db8018b4a
MD5 hash:
079f1ff28e619fa3a97c09fc43e1dcda
SHA1 hash:
4ed20fde4e573b939669c9b60d7216d8cccbcc9e
Detections:
win_remcos_g0 win_remcos_auto
SH256 hash:
83c08f0721c8b0c96e3d6a8f3ccaf5c96fbcc427d574625c34424c3429fefaa1
MD5 hash:
3c5dbcc3bb27e913e14efd8054811373
SHA1 hash:
b0eba9388abddaef9d5aa49ccd5dbab2924cced0
SH256 hash:
173e655835acb8af9db3e4fdf147e3dc25d826f0e7bbf42f5249ce10e7fec1e0
MD5 hash:
197f07b7f4ef2de674852818b8e642c0
SHA1 hash:
7137a39ede24370db2598b5550dfc8bcd3eb4042
SH256 hash:
bf618789e2d59d7bb417670150e59434cbf04c0300847740718f03f89591af58
MD5 hash:
43cba30128a5b9347851bd3c230ebe5b
SHA1 hash:
5a4439041cb45857deca2df9eedcadb4da6fc930
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
Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:Keylog_bin_mem
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Remcos
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Rule name:win_remcos_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_remcos_g0
Author:Daniel Plohmann <daniel.plohmann<at>fkie.fraunhofer.de>

File information


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

74d4e2a3a5bdb341089c77ad894d6cb14aa60254cf723a62f302d250edf7af34

RemcosRAT

Executable exe bf618789e2d59d7bb417670150e59434cbf04c0300847740718f03f89591af58

(this sample)

  
Dropped by
MD5 99cabb8cf2338574824fdda52bff189d
  
Dropped by
SHA256 74d4e2a3a5bdb341089c77ad894d6cb14aa60254cf723a62f302d250edf7af34
  
Dropped by
RemcosRAT
  
Delivery method
Distributed via e-mail attachment

Comments