MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6666e726f66dfa52c7c2e17523f4a72b3936539fd6baddea1cf5b2b35e9f49b0. 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: 16


Intelligence 16 IOCs YARA 10 File information Comments 1
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SHA256 hash: 6666e726f66dfa52c7c2e17523f4a72b3936539fd6baddea1cf5b2b35e9f49b0
SHA3-384 hash: 6ae7a168aa71c4a93cf320c1e196f17d27d79ac6003d220a6c049b6384b2538ac38fc04851a5f3e01c2c61eec561bbd6
SHA1 hash: c0f50ea3c3e9d09c6a8f9eb9804c83a39b26c0c6
MD5 hash: 43022a991b2fb09650339b7c68d48e05
humanhash: west-skylark-neptune-spaghetti
File name:43022a991b2fb09650339b7c68d48e05
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:330'135 bytes
First seen:2022-10-10 10:11:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (728 x GuLoader, 451 x Formbook, 295 x Loki)
ssdeep 6144:HNeZmg0lKfChzAZBdm7zOB7XPsOqblZVZ3XNJ:HNlgNqhzAHGzOtuDH3
TLSH T1056413003A21C4B3D8638A712F75B73A5F6AD65729B2570BA3026F1E7F62783590F781
TrID 48.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
16.4% (.EXE) Win64 Executable (generic) (10523/12/4)
10.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.0% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter zbetcheckin
Tags:32 exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
235
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/318309/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.2.6896.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Creating a file
Launching the default Windows debugger (dwwin.exe)
Creating a process with a hidden window
Creating a window
Running batch commands
Sending a custom TCP request
Setting a keyboard event handler
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/42202/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/6343eff4f70d3755bbbf882c/reports/2b19bf75-07ea-4071-a020-f6939d495281/overview
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.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8f52fa8c-c2e1-43b9-9da3-23db11c8790c
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1086790
Signature
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
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
Delayed program exit found
Found hidden mapped module (file has been removed from disk)
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
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 / registry access)
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 719347 Sample: p7jZQPkTPA.exe Startdate: 10/10/2022 Architecture: WINDOWS Score: 100 91 Malicious sample detected (through community Yara rule) 2->91 93 Antivirus detection for dropped file 2->93 95 Multi AV Scanner detection for dropped file 2->95 97 6 other signatures 2->97 12 p7jZQPkTPA.exe 18 2->12         started        15 remcos.exe 2->15         started        18 remcos.exe 1 2->18         started        20 remcos.exe 2->20         started        process3 file4 71 C:\Users\user\AppData\...\gisapetjym.exe, PE32 12->71 dropped 22 gisapetjym.exe 1 12->22         started        73 C:\Users\user\AppData\Local\Temp\A099.tmp, PE32 15->73 dropped 75 C:\Users\user\AppData\Local\Temp\9703.tmp, PE32 15->75 dropped 77 C:\Users\user\AppData\Local\Temp\8A7F.tmp, PE32 15->77 dropped 127 Maps a DLL or memory area into another process 15->127 79 C:\Users\user\AppData\Local\Temp\3867.tmp, PE32 18->79 dropped 26 remcos.exe 18->26         started        28 WerFault.exe 18->28         started        81 C:\Users\user\AppData\Local\Temp\6320.tmp, PE32 20->81 dropped 30 remcos.exe 20->30         started        32 WerFault.exe 20->32         started        signatures5 process6 file7 69 C:\Users\user\AppData\Local\Temp\FD71.tmp, PE32 22->69 dropped 105 Contains functionalty to change the wallpaper 22->105 107 Machine Learning detection for dropped file 22->107 109 Contains functionality to steal Chrome passwords or cookies 22->109 111 5 other signatures 22->111 34 gisapetjym.exe 5 4 22->34         started        37 WerFault.exe 23 9 22->37         started        signatures8 process9 dnsIp10 65 C:\ProgramData\Remcos\remcos.exe, PE32 34->65 dropped 67 C:\Users\user\AppData\Local\...\install.vbs, data 34->67 dropped 40 wscript.exe 1 34->40         started        89 192.168.2.1 unknown unknown 37->89 file11 process12 process13 42 cmd.exe 1 40->42         started        process14 44 remcos.exe 1 42->44         started        48 conhost.exe 42->48         started        file15 83 C:\Users\user\AppData\Local\Temp\1A11.tmp, PE32 44->83 dropped 119 Multi AV Scanner detection for dropped file 44->119 121 Machine Learning detection for dropped file 44->121 123 Found hidden mapped module (file has been removed from disk) 44->123 125 Maps a DLL or memory area into another process 44->125 50 remcos.exe 2 17 44->50         started        54 WerFault.exe 19 9 44->54         started        signatures16 process17 dnsIp18 85 geoplugin.net 178.237.33.50, 49705, 80 ATOM86-ASATOM86NL Netherlands 50->85 87 91.192.100.20, 49703, 49704, 7967 AS-SOFTPLUSCH Switzerland 50->87 99 Maps a DLL or memory area into another process 50->99 101 Sample uses process hollowing technique 50->101 103 Installs a global keyboard hook 50->103 56 remcos.exe 50->56         started        59 remcos.exe 50->59         started        61 remcos.exe 50->61         started        63 8 other processes 50->63 signatures19 process20 signatures21 113 Tries to steal Instant Messenger accounts or passwords 56->113 115 Tries to steal Mail credentials (via file / registry access) 56->115 117 Tries to harvest and steal browser information (history, passwords, etc) 63->117
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6666e726f66dfa52c7c2e17523f4a72b3936539fd6baddea1cf5b2b35e9f49b0/
Threat name:
Win32.Trojan.GenericML
Create hunting rule
Status:
Malicious
First seen:
2022-10-10 10:11:05 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mztoojxwnx5ffr6c4f2sh5fhfm4tmu47225n32q46wzlgxu7jgya._file
Verdict:
malicious
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:test collection persistence rat spyware stealer upx
Link:
https://tria.ge/reports/221010-l8hj4abfbp/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
UPX packed file
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
91.192.100.20:7967
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0d4b7b51-81aa-4eb1-b0f6-ec73029fd23f
Unpacked files
SH256 hash:
6eed9b3d658b78350df592eeac27e672dcb06b596ee92ea3dcedb48f3bedae12
MD5 hash:
bde82f7ae3aa0ef8abcfd541aa8fdb56
SHA1 hash:
d68ae4535984b7fa28468e10440ef2fbc419ecfa
Detections:
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/2b6ae8ce-6cfa-4771-a8ad-0e304ba73a61/
Parent samples :
9bd4004d7b777b2b3e5228419c24ded2b93b128b1a9becd9d8914c008a04d2a0
6666e726f66dfa52c7c2e17523f4a72b3936539fd6baddea1cf5b2b35e9f49b0
4f7e671c26e269961ffa6a6639a5522b66c06c8c119bdfb297797473bb7b4cbc
SH256 hash:
d0036fa480f0d092386d9d0f1198e4fabf7dc953511015ea02301c6ed65c84a2
MD5 hash:
8ff49027fb167fc0f2a75204f278ce10
SHA1 hash:
0dcdb8c6f75485cb6cdee3b35674f43ffdf82693
Link:
https://www.unpac.me/results/2b6ae8ce-6cfa-4771-a8ad-0e304ba73a61/
SH256 hash:
6666e726f66dfa52c7c2e17523f4a72b3936539fd6baddea1cf5b2b35e9f49b0
MD5 hash:
43022a991b2fb09650339b7c68d48e05
SHA1 hash:
c0f50ea3c3e9d09c6a8f9eb9804c83a39b26c0c6
Link:
https://www.unpac.me/results/2b6ae8ce-6cfa-4771-a8ad-0e304ba73a61/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6666e726f66d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/6666e726f66dfa52c7c2e17523f4a72b3936539fd6baddea1cf5b2b35e9f49b0

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:INDICATOR_EXE_Packed_MPress
Create hunting rule
Author:ditekSHen
Description:Detects executables built or packed with MPress PE compressor
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:QbotStuff
Create hunting rule
Author:anonymous
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
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:Detects win.remcos.

File information

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

Web download

RemcosRAT

Executable exe 6666e726f66dfa52c7c2e17523f4a72b3936539fd6baddea1cf5b2b35e9f49b0

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2354986/
Cape
Cape
https://www.capesandbox.com/analysis/318309/

Comments


Avatar
zbet commented on 2022-10-10 10:11:35 UTC

url : hxxp://103.114.107.27/winsave/vbc.exe