MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bd4ef5e45ec6e18bc4fc2225588ea4d01151f8f82aeb073a75868bdbcfc66b5a. 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 YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bd4ef5e45ec6e18bc4fc2225588ea4d01151f8f82aeb073a75868bdbcfc66b5a
SHA3-384 hash: d64b62b67144ee62ef9b818eccc0973e04d2adf494bb1ed384aed7a2329439a05dfa44527ac205ea7f9cb6374c542707
SHA1 hash: 33fbfcd22b1e2fe2dcead6b4410f2e25ce6d8306
MD5 hash: e6959f4b669656929b46353359a37b14
humanhash: bacon-nitrogen-romeo-nine
File name:maL634DHQGpEwYR.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:535'552 bytes
First seen:2020-10-18 17:11:35 UTC
Last seen:2020-10-19 01:23:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:uS9EXB2rnxBTPrv45rdrHJfZF/BveAt7hei6tZ0KeoPRiR44ngPwAYUJNreqCcAz:BlxpPOrNBbBlhwa0RQ42y1J9Arwk
Threatray 1'096 similar samples on MalwareBazaar
TLSH 88B4BE2A1A05AF24E17D9377D0D40464D3FEDC47D322C5AABEF832CE4596F986263B06
Reporter abuse_ch
Tags:exe nVpn RAT RemcosRAT UPS


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: mysmtp4
Sending IP: 52.247.209.58
From: UPS Customer Service <pkinfo@ups.com>
Subject: UPS - Package Arrival Notification
Attachment: UPS Detail.img (contains "maL634DHQGpEwYR.exe")

u875414.nsupdate.info
u875414.nvpn.to
u875414.duckdns.org
u875414.ddns.net

Intelligence

File Origin
# of uploads :
3
# of downloads :
130
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/72679/
Detection(s):
SecuriteInfo.com.RSharedStrings.28352.15519.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
DNS request
Setting a global event handler for the keyboard
Sending a TCP request to an infection source
Enabling autorun by creating a file
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/494686
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
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: 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)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file access)
Tries to steal Mail credentials (via file registry)
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: 299793 Sample: maL634DHQGpEwYR.exe Startdate: 18/10/2020 Architecture: WINDOWS Score: 100 48 Malicious sample detected (through community Yara rule) 2->48 50 Multi AV Scanner detection for dropped file 2->50 52 Sigma detected: Scheduled temp file as task from temp location 2->52 54 9 other signatures 2->54 7 maL634DHQGpEwYR.exe 7 2->7         started        process3 file4 28 C:\Users\user\AppData\...\qtGzDXlGHRtng.exe, PE32 7->28 dropped 30 C:\...\qtGzDXlGHRtng.exe:Zone.Identifier, ASCII 7->30 dropped 32 C:\Users\user\AppData\Local\...\tmp547A.tmp, XML 7->32 dropped 34 C:\Users\user\...\maL634DHQGpEwYR.exe.log, ASCII 7->34 dropped 56 Detected unpacking (creates a PE file in dynamic memory) 7->56 58 Tries to steal Mail credentials (via file registry) 7->58 60 Contains functionality to steal Chrome passwords or cookies 7->60 62 4 other signatures 7->62 11 maL634DHQGpEwYR.exe 2 3 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 36 u875414.duckdns.org 11->36 38 u875414.ddns.net 11->38 40 2 other IPs or domains 11->40 64 Injects a PE file into a foreign processes 11->64 17 maL634DHQGpEwYR.exe 1 11->17         started        20 maL634DHQGpEwYR.exe 13 11->20         started        22 maL634DHQGpEwYR.exe 11->22         started        26 2 other processes 11->26 24 conhost.exe 15->24         started        signatures8 process9 signatures10 42 Tries to steal Instant Messenger accounts or passwords 17->42 44 Tries to steal Mail credentials (via file access) 17->44 46 Tries to harvest and steal browser information (history, passwords, etc) 20->46
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/bd4ef5e45ec6e18bc4fc2225588ea4d01151f8f82aeb073a75868bdbcfc66b5a/
Threat name:
Win32.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2020-10-18 14:07:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xvhplzc6y3qyxrh4eisvrdve2aivd6hyflvqootvq2f5xt6gnnna._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
26cfb1b24425c97fc4588631b23ca93def5d84efb2300d81bdbbb48443207292
RemcosRAT
346c5380b5669b73b9fc43a1a17c31ea17985488e9ea947d93a1c6858ebab5e1
RemcosRAT
3ae83a13a6fe98f6d3b293d69aa7e58e4752e4b1353978e1a390314f725ea44e
RemcosRAT
485c1301f4bc84bc2d274f53222cf7ca5fbd8af8728d1aaa977a6574f577fb87
RemcosRAT
7133d7e48e25500913021a3d2c6d4efa3d9ace18d9887cd899f64c3c598c037a
RemcosRAT
763d415415add2ffc6d482373e211c8c8b647ee46ade5e8dacce10f79d515e2b
RemcosRAT
7f767ca610703568153db9fd01aa25c9fb1e4e5c740d669699649fdd4785ab69
RemcosRAT
8247f1c9100f98350ccc39ee0512d24a86c29881763eb262197347908a1315c4
RemcosRAT
9930543939f97818319ed031530d9e084994331aa4b06a304faeb321bbcc63db
RemcosRAT
c8b30a9f515a5568cc22aca8057a1923440516345a926e027baf3906615ce105
RemcosRAT
+ 1'086 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
rat family:remcos spyware
Link:
https://tria.ge/reports/201018-99g2v9x1w6/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Remcos
Unpacked files
SH256 hash:
493567bbc8911d1bd3076785c547ad30eb1967d6295d0da1357944eca3af8008
MD5 hash:
468931907cfb2bca5459884517ac961e
SHA1 hash:
75dedb588ff579f1b3795c9f2e8a979ecefee6e9
Link:
https://www.unpac.me/results/ffbe37a0-bd2f-43d2-9ed6-4cec396fe403/
SH256 hash:
c1f3014efaf2118b11c25949e395c114ab71a7363fb2912875339b3191a938bc
MD5 hash:
4d22e69c7664bdadfaacf22ea9cd43e2
SHA1 hash:
a66ba2f18dad08b883efd6eb7403fd219921490f
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/ffbe37a0-bd2f-43d2-9ed6-4cec396fe403/
Parent samples :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 hash:
7ff139cf063753052ec5b32567c258721ca1a80852c5969933c971f1e5d69ba5
MD5 hash:
f0229eae5a3b7d6e7e052de963ee35b6
SHA1 hash:
e1f75115180875ae7d8e8d65497025c3cc541f67
Link:
https://www.unpac.me/results/ffbe37a0-bd2f-43d2-9ed6-4cec396fe403/
SH256 hash:
bac5797bde4b2810766a40d95bcdb825ac5b395fcbadd139daa19a44a6cdc049
MD5 hash:
a92cc1f6e0a2742350dfda6726db14c0
SHA1 hash:
e5404e3ed46498deb8ad8966a774540c2b8e9c1e
Link:
https://www.unpac.me/results/ffbe37a0-bd2f-43d2-9ed6-4cec396fe403/
SH256 hash:
bd4ef5e45ec6e18bc4fc2225588ea4d01151f8f82aeb073a75868bdbcfc66b5a
MD5 hash:
e6959f4b669656929b46353359a37b14
SHA1 hash:
33fbfcd22b1e2fe2dcead6b4410f2e25ce6d8306
Link:
https://www.unpac.me/results/ffbe37a0-bd2f-43d2-9ed6-4cec396fe403/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Farheyt
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/bd4ef5e45ec6e18bc4fc2225588ea4d01151f8f82aeb073a75868bdbcfc66b5a

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: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:RSharedStrings
Create hunting rule
Author:Katie Kleemola
Description:identifiers for remote and gmremote
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.

Malspam

RemcosRAT

img 33050792ac86e7e40818bc2014d049cd5434579b86362d65c85a897385b1f5e7

RemcosRAT

Executable exe bd4ef5e45ec6e18bc4fc2225588ea4d01151f8f82aeb073a75868bdbcfc66b5a

(this sample)

  
Dropped by
MD5 a8aa1e56401255038582edc547c53e67
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/72679/
  
Dropped by
SHA256 33050792ac86e7e40818bc2014d049cd5434579b86362d65c85a897385b1f5e7

Comments