MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c1a4991ae17887dc70504cf13daafef24a394e39dc5e19177ea8d8139432e8b6. 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: 15


Intelligence 15 IOCs YARA 9 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c1a4991ae17887dc70504cf13daafef24a394e39dc5e19177ea8d8139432e8b6
SHA3-384 hash: 28456ed9a3fc5756c0996725f6377929092eb8572efe7e0b9923184af6c077c5bc9613c72bbf5a86a7fa819e0f7f00e8
SHA1 hash: 663e7b9d1431db3b2c6289ca86e2fb5399b1d9e2
MD5 hash: bd67beb2f54f4bc2cbfdc1e829f1fddd
humanhash: ceiling-apart-mexico-uncle
File name:bd67beb2f54f4bc2cbfdc1e829f1fddd
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:903'680 bytes
First seen:2022-09-16 03:51:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:wk4wNzLUW0iNi7b0wqUmkeIyRomdWvqNG1VMp:wkhNzOiNiH0wqBXRTNp
Threatray 1'914 similar samples on MalwareBazaar
TLSH T19715F12B950C5CE2DEB997F22FE3ED84890B392806780DDE9AF1274CD5EB7441181E6D
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 39198a2100401951 (1 x RemcosRAT)
Reporter zbetcheckin
Tags:32 exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
320
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
bd67beb2f54f4bc2cbfdc1e829f1fddd
Verdict:
Malicious activity
Analysis date:
2022-09-16 06:05:37 UTC
Tags:
keylogger remcos
Link:
https://app.any.run/tasks/43017da5-d575-44a6-aed1-5be1813237bc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/310405/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1547.14056.711.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
barys packed remcos
Link:
https://www.filescan.io/uploads/6323f320e66de08ea4a70fb3/reports/58e8f7c7-0309-4a47-81ef-5dd6bff67d25/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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/45d1e5ed-5241-4319-8a50-c0e2c0cb6ff2
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1071372
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Encrypted powershell cmdline option found
Injects a PE file into a foreign processes
Installs a global keyboard hook
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 703914 Sample: jzQyTGyTbT.exe Startdate: 16/09/2022 Architecture: WINDOWS Score: 100 44 contactchoweysafe.ddns.net 2->44 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus / Scanner detection for submitted sample 2->50 52 Multi AV Scanner detection for submitted file 2->52 54 8 other signatures 2->54 8 jzQyTGyTbT.exe 1 7 2->8         started        12 Hvzwf.exe 4 2->12         started        14 Hvzwf.exe 3 2->14         started        signatures3 process4 file5 36 C:\Users\user\AppData\Roaming\...\Hvzwf.exe, PE32 8->36 dropped 38 C:\Users\user\...\Hvzwf.exe:Zone.Identifier, ASCII 8->38 dropped 40 C:\Users\user\AppData\...\jzQyTGyTbT.exe.log, ASCII 8->40 dropped 56 Encrypted powershell cmdline option found 8->56 58 Injects a PE file into a foreign processes 8->58 16 jzQyTGyTbT.exe 2 3 8->16         started        20 powershell.exe 15 8->20         started        60 Antivirus detection for dropped file 12->60 62 Multi AV Scanner detection for dropped file 12->62 64 Machine Learning detection for dropped file 12->64 22 powershell.exe 13 12->22         started        24 Hvzwf.exe 12->24         started        26 powershell.exe 13 14->26         started        28 Hvzwf.exe 14->28         started        signatures6 process7 dnsIp8 42 contactchoweysafe.ddns.net 68.235.35.124, 25505, 49731, 49733 TZULOUS United States 16->42 46 Installs a global keyboard hook 16->46 30 conhost.exe 20->30         started        32 conhost.exe 22->32         started        34 conhost.exe 26->34         started        signatures9 process10
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c1a4991ae17887dc70504cf13daafef24a394e39dc5e19177ea8d8139432e8b6/
Threat name:
ByteCode-MSIL.Downloader.SnakeKeylogger
Create hunting rule
Status:
Malicious
First seen:
2022-09-15 02:12:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
20 of 25 (80.00%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ygsjsgxbpcd5y4cqjtyt3kx66jfdstrz3rpbsf36vdmbhfbs5c3a._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
4bd1f385e71c2b0c8bb27ce271cfd26c696e3049e3e92cd150ba62666bc6221f
RemcosRAT
592f15fec50eda79baadcb6bc5c4cb79de60e5bb285f20fb8e8927477495f065
RemcosRAT
7544af0313e3be873eee7b54815dac5d0dece0bfd39b0c4e93bfe34516baa387
RemcosRAT
7f89f38c1c2a3e42e7fe2d1c286816361fe77aa49d1d474de200df6eb2dbda81
RemcosRAT
9d724226a2a3c8676d4a58b64b636d9dcc178c1d40fcf321309afa14505cf285
RemcosRAT
e1eb708f47303b831f6eb0ddc846e21782e8f727dcb0088fcb997c3bf0d4dbd3
RemcosRAT
e76cebc404b8a79e2ab806a3e501b9d2f7260ea1d12f804320c1130be205dff6
RemcosRAT
+ 1'904 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:daybyday persistence rat
Link:
https://tria.ge/reports/220916-ee2ybaeeg7/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Remcos
Malware Config
C2 Extraction:
contactchoweysafe.ddns.net:25505
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/349c104f-963e-425e-b941-171a502bdfd3
Unpacked files
SH256 hash:
225efb9b5b8049c7168ab0a4e98ac591f156a785f833c1f32efb75d79adff7c9
MD5 hash:
5b46e4da92de4702210e041813c12fc4
SHA1 hash:
f612012697247b96aa392015aea26ad0a365c4b4
Detections:
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/d6abcd59-7076-435e-b3d1-e6be9981ff57/
SH256 hash:
a6acfe617040a5005be0d1675756dc9f09596d3bb2bb3ebc8a2c6881b8c4cfd7
MD5 hash:
db843358b89f4074346cab346720ab06
SHA1 hash:
94d77a5f2d66f20baf557ad30c3ab284665980d9
Link:
https://www.unpac.me/results/d6abcd59-7076-435e-b3d1-e6be9981ff57/
SH256 hash:
dfb38b2e92d269af69921fe917a700ab21f1d7ff280c0916575de2fd17b47c4a
MD5 hash:
d6b207f33fcc82a51fe05e1fca0722fd
SHA1 hash:
0836e8c626208e6c35269fb0c528c105f816d378
Link:
https://www.unpac.me/results/d6abcd59-7076-435e-b3d1-e6be9981ff57/
SH256 hash:
c1a4991ae17887dc70504cf13daafef24a394e39dc5e19177ea8d8139432e8b6
MD5 hash:
bd67beb2f54f4bc2cbfdc1e829f1fddd
SHA1 hash:
663e7b9d1431db3b2c6289ca86e2fb5399b1d9e2
Link:
https://www.unpac.me/results/d6abcd59-7076-435e-b3d1-e6be9981ff57/
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/c1a4991ae17887dc70504cf13daafef24a394e39dc5e19177ea8d8139432e8b6

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_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:pe_imphash
Create hunting rule
Rule name:RansomwareTest4
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:RansomwareTest5
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:Record_Breaker_Similarities
Create hunting rule
Author:DigitalPanda
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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 c1a4991ae17887dc70504cf13daafef24a394e39dc5e19177ea8d8139432e8b6

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2304777/
Cape
Cape
https://www.capesandbox.com/analysis/310405/

Comments


Avatar
zbet commented on 2022-09-16 03:52:11 UTC

url : hxxp://107.172.44.187/91/vbc.exe