MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8342c94ddfd4cca232e9d1cd5faed48fdce02a694b062606b938401b502a0c30. 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: 11


Intelligence 11 IOCs 1 YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8342c94ddfd4cca232e9d1cd5faed48fdce02a694b062606b938401b502a0c30
SHA3-384 hash: 1e79314924da52aef62c67ea4d259d184599a9351650abdf024588a50f5a721bcd949c42adecdc612f562368a6b82d3d
SHA1 hash: ec50ac6001ce5d5c49d9ce88fbc8973f23cfa23d
MD5 hash: c7b80400921853bb5ed15ad3f9dbd362
humanhash: cardinal-july-batman-nineteen
File name:Purchase Order April-EBS22-0010903.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:234'496 bytes
First seen:2022-03-29 06:52:11 UTC
Last seen:2022-03-29 08:13:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 3072:Vt/5y1i+cIZQ80OE9cxzB2FP5EAblfv2KL8QR6ru5RjBOK2bIThf:V55Ci+cIWY5BYCGlWs4k2
TLSH T1BC34F7607E052487E68F88F2398E41E6DA91B928F351AC0F63D1BD2DC56B5F04E5E1EC
File icon (PE):PE icon
dhash icon b2bec096ac968682 (15 x AgentTesla, 5 x Formbook, 3 x AveMariaRAT)
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
136.144.41.64:4675

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
136.144.41.64:4675 https://threatfox.abuse.ch/ioc/460937/

Intelligence

File Origin
# of uploads :
2
# of downloads :
261
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/258954/
Detection(s):
SecuriteInfo.com.W32.MSIL_Kryptik.GRB.genEldorado.18983.30320.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file in the %AppData% subdirectories
Creating a file
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed update.exe
Link:
https://www.filescan.io/uploads/6242acd01f2042394848b5b6/reports/5ccaa7bb-1299-458e-ada8-acff24d6bbad/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:
KeyBase
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/835d9e1c-e693-49a9-a9d8-dd9bd37b3cc3
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/966477
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 598982 Sample: Purchase Order April-EBS22-... Startdate: 29/03/2022 Architecture: WINDOWS Score: 100 58 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->58 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 9 other signatures 2->64 7 Purchase Order April-EBS22-0010903.exe 16 7 2->7         started        12 Zlivaeqjz.exe 14 4 2->12         started        14 Zlivaeqjz.exe 3 2->14         started        process3 dnsIp4 48 trieutin.com 119.17.253.214, 443, 49759, 49780 NETNAM-AS-APNetnamCompanyVN Viet Nam 7->48 40 C:\Users\user\AppData\...\Zlivaeqjz.exe, PE32 7->40 dropped 42 C:\Users\...\Zlivaeqjz.exe:Zone.Identifier, ASCII 7->42 dropped 44 Purchase Order Apr...S22-0010903.exe.log, ASCII 7->44 dropped 66 Writes to foreign memory regions 7->66 68 Injects a PE file into a foreign processes 7->68 16 MSBuild.exe 2 7->16         started        20 cmd.exe 1 7->20         started        70 Multi AV Scanner detection for dropped file 12->70 72 Machine Learning detection for dropped file 12->72 22 cmd.exe 1 12->22         started        24 MSBuild.exe 12->24         started        26 cmd.exe 14->26         started        file5 signatures6 process7 dnsIp8 46 136.144.41.64, 4675, 49777 WORLDSTREAMNL Netherlands 16->46 50 Contains functionality to steal Chrome passwords or cookies 16->50 52 Contains functionality to inject code into remote processes 16->52 54 Contains functionality to steal Firefox passwords or cookies 16->54 56 Delayed program exit found 16->56 28 conhost.exe 20->28         started        30 timeout.exe 1 20->30         started        32 conhost.exe 22->32         started        34 timeout.exe 22->34         started        36 conhost.exe 26->36         started        38 timeout.exe 26->38         started        signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8342c94ddfd4cca232e9d1cd5faed48fdce02a694b062606b938401b502a0c30/
Threat name:
ByteCode-MSIL.Downloader.Seraph
Create hunting rule
Status:
Malicious
First seen:
2022-03-29 06:53:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
14 of 26 (53.85%)
Threat level:
  3/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qnbmsto72tgkemxj2hgv7lwur7ooaktjjmdcmbvzhbabwubkbqya._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection persistence rat suricata
Link:
https://tria.ge/reports/220329-hnmfrsgear/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Checks computer location settings
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
suricata: ET MALWARE Remocs 3.x Unencrypted Checkin
suricata: ET MALWARE Remocs 3.x Unencrypted Server Response
Malware Config
C2 Extraction:
136.144.41.64:4675
Unpacked files
SH256 hash:
8342c94ddfd4cca232e9d1cd5faed48fdce02a694b062606b938401b502a0c30
MD5 hash:
c7b80400921853bb5ed15ad3f9dbd362
SHA1 hash:
ec50ac6001ce5d5c49d9ce88fbc8973f23cfa23d
Link:
https://www.unpac.me/results/48ab97be-161e-4adc-8d1d-6f9d4499456b/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/8342c94ddfd4/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/8342c94ddfd4cca232e9d1cd5faed48fdce02a694b062606b938401b502a0c30

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/258954/

Comments