MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b39bf079197ed9f529e222dd50feb28bf27615c728fb1ee5e71ddc8a9b21930d. 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: b39bf079197ed9f529e222dd50feb28bf27615c728fb1ee5e71ddc8a9b21930d
SHA3-384 hash: 5c0a5c4a3bc6607c676f06b1e9447f2bda677dc4c42abd8f671da38a42c528b8043a21d537aa5e968b2d02ee3459c0de
SHA1 hash: e896dde4cae775417219ab7ee6db4d920a8f3272
MD5 hash: 11e752eea64e8f54de50d0d42a71be4e
humanhash: vegan-oklahoma-low-mexico
File name:SecuriteInfo.com.Artemis11E752EEA64E.7178
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:832'000 bytes
First seen:2021-01-27 15:06:52 UTC
Last seen:2021-01-27 16:46:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:Aqfu19SBtqKuCwaBLC0WntYVxfa/2aPouCwaBt:gSBtq9ZaxKoa/2gfZa
Threatray 1'469 similar samples on MalwareBazaar
TLSH DC057CD2FC16EAD0D3A4CE71D053C5F846393FA9D86191832D20BDAA367FF525B81A06
Reporter SecuriteInfoCom
Tags:RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
182
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Artemis11E752EEA64E.7178
Verdict:
Malicious activity
Analysis date:
2021-01-27 15:10:42 UTC
Tags:
rat remcos trojan stealer keylogger
Link:
https://app.any.run/tasks/93fb2cfc-1f5e-4255-acf1-f0181dd21880

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/114112/
Detection(s):
SecuriteInfo.com.Artemis11E752EEA64E.7178.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Creating a file in the %AppData% subdirectories
Creating a process from 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
Enabling autorun by creating a file
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:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/591989
Signature
.NET source code contains potential unpacker
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
Detected Remcos RAT
Detected unpacking (creates a PE file in dynamic memory)
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
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 345040 Sample: SecuriteInfo.com.Artemis11E... Startdate: 27/01/2021 Architecture: WINDOWS Score: 100 61 Malicious sample detected (through community Yara rule) 2->61 63 Multi AV Scanner detection for dropped file 2->63 65 Sigma detected: Scheduled temp file as task from temp location 2->65 67 11 other signatures 2->67 9 remcos.exe 5 2->9         started        13 SecuriteInfo.com.Artemis11E752EEA64E.exe 6 2->13         started        process3 file4 49 C:\Users\user\AppData\...\remcos.exe.log, ASCII 9->49 dropped 69 Multi AV Scanner detection for dropped file 9->69 71 Detected unpacking (creates a PE file in dynamic memory) 9->71 73 Machine Learning detection for dropped file 9->73 81 2 other signatures 9->81 15 remcos.exe 2 4 9->15         started        19 schtasks.exe 1 9->19         started        51 C:\Users\user\AppData\Roaming\ItXxDNzPr.exe, PE32 13->51 dropped 53 C:\Users\user\AppData\Local\...\tmp3437.tmp, XML 13->53 dropped 55 SecuriteInfo.com.A...1E752EEA64E.exe.log, ASCII 13->55 dropped 75 Contains functionality to steal Chrome passwords or cookies 13->75 77 Contains functionality to capture and log keystrokes 13->77 79 Contains functionality to inject code into remote processes 13->79 21 SecuriteInfo.com.Artemis11E752EEA64E.exe 4 5 13->21         started        24 schtasks.exe 1 13->24         started        26 SecuriteInfo.com.Artemis11E752EEA64E.exe 13->26         started        signatures5 process6 dnsIp7 57 greenfieldsde.duckdns.org 195.20.109.90, 49724, 49726, 49727 BANDWIDTH-ASGB United Kingdom 15->57 59 Injects a PE file into a foreign processes 15->59 28 remcos.exe 13 15->28         started        31 remcos.exe 15->31         started        33 remcos.exe 15->33         started        35 conhost.exe 19->35         started        45 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 21->45 dropped 47 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 21->47 dropped 37 wscript.exe 1 21->37         started        39 conhost.exe 24->39         started        file8 signatures9 process10 signatures11 83 Tries to harvest and steal browser information (history, passwords, etc) 28->83 41 cmd.exe 1 37->41         started        process12 process13 43 conhost.exe 41->43         started       
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b39bf079197ed9f529e222dd50feb28bf27615c728fb1ee5e71ddc8a9b21930d/
Threat name:
ByteCode-MSIL.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-01-27 07:03:13 UTC
AV detection:
17 of 29 (58.62%)
Threat level:
  1/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=won7a6izp3m7kkpcelovb7vsrpzhmfohfd5r5zphdxoivgzbsmgq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0b32f0d8ef0ef999d370afa5a8d00a176c5335ccc69ea4370a20df9ee14616ef
RemcosRAT
0dd717bee251b18b3324e6644ce2210d02c69de5b03ae51ac0c38f14a0757869
RemcosRAT
112f430a8cc28d3889163bbaf9811c74c3d2af2c9af672d16f0f7888df6d51e2
RemcosRAT
3b1b352f3c4d0fe235b45d9db418e1e4155ab31265ee368ed646ac38071a2eda
RemcosRAT
5b10f4a23880b51923a0df3e9e3c37f40eb0d3cc93de7b463da62f936a501385
RemcosRAT
c7af68bcec3b1c2e3a87f08111ab75b525799c5386fa85b529f8690bfa1c766a
RemcosRAT
c935dd6128830f5506af13b5e46043d4f8b2781e345936f06964722865ab0c6e
RemcosRAT
cdcac20482aa52d29a0fcc8d9891a97cc87ea26cf678e93db4a5412f10ff85cd
RemcosRAT
d34e588c8bef9cef39708c52f7f372bcd4b5fc39e4eaf0b9193aa586a10d7cc2
RemcosRAT
dfd3c33bf7be405cea03a045f3df2d9ff35f04c7da918eb916b6f224a58eea1f
RemcosRAT
+ 1'459 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence ransomware rat spyware
Link:
https://tria.ge/reports/210127-pfw9pwvn5s/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
greenfieldsde.duckdns.org:6553
Unpacked files
SH256 hash:
12b819720c38c9a4aa19be843cabd92930e109f3cd4072e9a43f8439889b0fd2
MD5 hash:
ca19d1cb5ffc5b1d67c45ab334ffb3d6
SHA1 hash:
05827da89d2f37195fcf6875fd6e7d4e155847c5
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/60c649c1-594f-4620-a165-1bea0579c197/
Parent samples :
b39bf079197ed9f529e222dd50feb28bf27615c728fb1ee5e71ddc8a9b21930d
327396e5d45963437ca911467811dd873249c8fd6c7cc06a5123517725b71154
SH256 hash:
7f487268f55391b1fb1e619c6e385985b0e655dba9df3e7d99e88a70525ef3f7
MD5 hash:
bfd840d530dd3343e1a44374cafec1ca
SHA1 hash:
44b7372cc280d30e4726dbf44e65e9fe8608d831
Link:
https://www.unpac.me/results/60c649c1-594f-4620-a165-1bea0579c197/
SH256 hash:
a2a0bbbe8c9ee88441356010f63455c50dfcafe663db757bbc453c815c51d720
MD5 hash:
11e80c54bfeff7f0c120dae46df0a8be
SHA1 hash:
d597b9b0dcac06f0aa00a931bb90de8eba564651
Link:
https://www.unpac.me/results/60c649c1-594f-4620-a165-1bea0579c197/
SH256 hash:
b39bf079197ed9f529e222dd50feb28bf27615c728fb1ee5e71ddc8a9b21930d
MD5 hash:
11e752eea64e8f54de50d0d42a71be4e
SHA1 hash:
e896dde4cae775417219ab7ee6db4d920a8f3272
Link:
https://www.unpac.me/results/60c649c1-594f-4620-a165-1bea0579c197/
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/b39bf079197ed9f529e222dd50feb28bf27615c728fb1ee5e71ddc8a9b21930d

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.

Cape
Cape
https://www.capesandbox.com/analysis/114112/

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