MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7203454526083d110cbea6b01f16405f8098411474c9c78aebb6e77925877661. 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: 13


Intelligence 13 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7203454526083d110cbea6b01f16405f8098411474c9c78aebb6e77925877661
SHA3-384 hash: 9cbefc3391e367513e9dd239e9a083f3951826d9068bb6917a80f48c5c5c51f41e867a77a5012ac4d1b4bbe29020e12d
SHA1 hash: 18bdfa12cb776fe29a61a617af28e83ddfe64991
MD5 hash: 2fc9ed112c46595cc9fb526b5063c80b
humanhash: kitten-potato-rugby-lamp
File name:2fc9ed112c46595cc9fb526b5063c80b.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:2'054'336 bytes
First seen:2020-12-16 08:33:34 UTC
Last seen:2020-12-16 10:49:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:VRBCLF91Orcnn3NZeQAYNkEV7trulHr3KAutDRRDWg45YjYdNtnDtc0JGBldTcyK:O9KEZv0y+r3SN/4eYRnDtVgO
Threatray 1'634 similar samples on MalwareBazaar
TLSH 3B956B10F800395FB98A42B06ED756E9A2D6310A26331B398D63697DDA1D18B7CDFC73
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
swryijgrvcsgkopnmcdertvgdswbvmophtfdczxs.ydns.eu:2017 (192.253.246.143)

Intelligence

File Origin
# of uploads :
2
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2fc9ed112c46595cc9fb526b5063c80b.exe
Verdict:
Malicious activity
Analysis date:
2020-12-16 08:36:19 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c567a0c3-e9e0-458a-9574-e20081a9f9cb

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/108281/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.35734162.6766.14066.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Deleting a recently created file
Running batch commands
DNS request
Sending a custom TCP request
Reading critical registry keys
Creating a window
Adding an access-denied ACE
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
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
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Setting a global event handler for the keyboard
Stealing user critical data
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:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/563993
Signature
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
Country aware sample found (crashes after keyboard check)
Detected Remcos RAT
Detected unpacking (creates a PE file in dynamic memory)
Hides threads from debuggers
Injects a PE file into a foreign processes
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
Sigma detected: Remcos
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file access)
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 331080 Sample: 5cvGoSGNa6.exe Startdate: 16/12/2020 Architecture: WINDOWS Score: 100 67 Malicious sample detected (through community Yara rule) 2->67 69 Multi AV Scanner detection for submitted file 2->69 71 Detected Remcos RAT 2->71 73 4 other signatures 2->73 11 5cvGoSGNa6.exe 2 2->11         started        14 vlc.exe 2 2->14         started        16 vlc.exe 2 2->16         started        process3 signatures4 85 Contains functionality to steal Chrome passwords or cookies 11->85 87 Contains functionality to capture and log keystrokes 11->87 89 Contains functionality to inject code into remote processes 11->89 91 Contains functionality to steal Firefox passwords or cookies 11->91 18 5cvGoSGNa6.exe 4 4 11->18         started        21 WerFault.exe 23 9 11->21         started        93 Hides threads from debuggers 14->93 24 WerFault.exe 14->24         started        26 vlc.exe 14->26         started        28 vlc.exe 16->28         started        process5 dnsIp6 53 C:\Users\user\AppData\Roaming\vlc.exe, PE32 18->53 dropped 55 C:\Users\user\...\vlc.exe:Zone.Identifier, ASCII 18->55 dropped 30 wscript.exe 1 18->30         started        63 192.168.2.1 unknown unknown 21->63 57 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 21->57 dropped 59 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 24->59 dropped file7 process8 process9 32 cmd.exe 1 30->32         started        process10 34 vlc.exe 2 32->34         started        37 conhost.exe 32->37         started        signatures11 75 Multi AV Scanner detection for dropped file 34->75 77 Detected unpacking (creates a PE file in dynamic memory) 34->77 79 Machine Learning detection for dropped file 34->79 81 5 other signatures 34->81 39 vlc.exe 2 1 34->39         started        43 WerFault.exe 34->43         started        process12 dnsIp13 65 swryijgrvcsgkopnmcdertvgdswbvmophtfdczxs.ydns.eu 192.253.246.143, 2017, 49741, 49742 LEASEWEB-USA-NYC-11US United States 39->65 83 Injects a PE file into a foreign processes 39->83 46 vlc.exe 39->46         started        49 vlc.exe 39->49         started        51 vlc.exe 39->51         started        61 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 43->61 dropped file14 signatures15 process16 signatures17 95 Tries to steal Instant Messenger accounts or passwords 46->95 97 Tries to steal Mail credentials (via file access) 46->97 99 Tries to harvest and steal browser information (history, passwords, etc) 49->99
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7203454526083d110cbea6b01f16405f8098411474c9c78aebb6e77925877661/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2020-12-16 08:34:08 UTC
AV detection:
16 of 29 (55.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=oibukrjgba6rcdf6u2yb6fsal6ajqqiuote4pcxlw3txsjmhozqq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0e09c1fc128ae9653e52e92c6db0a1151dc2a502a5b3f891e99ae2606f1c07f6
RemcosRAT
11b16ba733f2f4f10ac58021eecaf5668551a73e2a1acfae99745c50bfccbb44
RemcosRAT
344e6fbb3b331ae13507bca32206ceea89837dc6c02eeadeeee979d8312199b6
RemcosRAT
346c5380b5669b73b9fc43a1a17c31ea17985488e9ea947d93a1c6858ebab5e1
RemcosRAT
3ae83a13a6fe98f6d3b293d69aa7e58e4752e4b1353978e1a390314f725ea44e
RemcosRAT
44cfe2788bdba5231ad53ac96614b4f0a8fe0bded01a712db0bca1317af6bd7d
RemcosRAT
61248c209119bd790c6ad906dd9d12e7a03455c2b2f6e4b7d1432aed6ae92439
RemcosRAT
a66b740c103035f94d2d78140ead520be0e9ee0c218ab7dc17ebb3cfa2ea4f86
RemcosRAT
c032e316eefbacca4b3ddfe7fc2ee9ac5f86daea767232d2322f7fdfe4b18993
RemcosRAT
f7e29cbf47c9804eb341836873ea6837be7a46639978f44d9ba2670d47e68d56
RemcosRAT
+ 1'624 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat spyware
Link:
https://tria.ge/reports/201216-vrcjnavhwx/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Executes dropped EXE
ServiceHost packer
Remcos
Malware Config
C2 Extraction:
swryijgrvcsgkopnmcdertvgdswbvmophtfdczxs.ydns.eu:2017
Unpacked files
SH256 hash:
7203454526083d110cbea6b01f16405f8098411474c9c78aebb6e77925877661
MD5 hash:
2fc9ed112c46595cc9fb526b5063c80b
SHA1 hash:
18bdfa12cb776fe29a61a617af28e83ddfe64991
Link:
https://www.unpac.me/results/5f185653-02d6-44bb-8f3d-a7d7b52e94b8/
SH256 hash:
c28776e4da94e8d180afa06141d91d5c0d762e8bdbd95489dc3729ca0156cd96
MD5 hash:
af7d83f794015dad5248e4fd7d0e7e1c
SHA1 hash:
814ad2d07fcb8bcee48dfdc6f5ad27890471118d
Link:
https://www.unpac.me/results/5f185653-02d6-44bb-8f3d-a7d7b52e94b8/
SH256 hash:
34bfc36efe337852e5ed90e0c29bfbe49dd565352c3b9a76649a4fdd67166a44
MD5 hash:
5163ffad188c223e74e1c69bb4e82397
SHA1 hash:
80bcf4cdaaec6687113b8b086309f7275c232216
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/5f185653-02d6-44bb-8f3d-a7d7b52e94b8/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/7203454526083d110cbea6b01f16405f8098411474c9c78aebb6e77925877661

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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
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 7203454526083d110cbea6b01f16405f8098411474c9c78aebb6e77925877661

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/917470/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/108281/

Comments