MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 848aee75718b5e635f13a64dcb64dd0c0d4d44228952d2941a9c4c1c14fd7ea1. 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: 848aee75718b5e635f13a64dcb64dd0c0d4d44228952d2941a9c4c1c14fd7ea1
SHA3-384 hash: 7dccbee5fbe96659e2d410655e8affee41dd9261116c2ec58295dc77ab7b68caff9a32a4886da473dd0a46e7188d06e9
SHA1 hash: 238f66f3053f2e154bf0a099aeab72698f6689e3
MD5 hash: f87e2aeb7bcbbb476a5d157602e47dca
humanhash: gee-tango-robin-timing
File name:CHT International.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:870'400 bytes
First seen:2021-02-16 06:25:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:EILpqyf4jsY/ipLmA0Hrx5ulDUyXzzq1CXvQaAQbiWzx51SwasKcZtlH0j2qDSvV:EIIyfws4FrnIvq0f5A4iWzx5nasRtpy
Threatray 59 similar samples on MalwareBazaar
TLSH CB05236973ACDA56C4BE67B3C8A0E16423B4B41897ECD3C63F6C719D06523D867A070B
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: vps.helitactica.xyz
Sending IP: 203.159.80.22
From: office@kolsitegroups.com
Subject: Purchase New Order 3401
Attachment: POCM 202100322.zip (contains "CHT International.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
115
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/117288/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.42845.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Deleting 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
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/608622
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
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
Delayed program exit found
Detected Remcos RAT
Detected unpacking (creates a PE file in dynamic memory)
Found malware configuration
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: Suspicious Svchost Process
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 353341 Sample: CHT International.exe Startdate: 16/02/2021 Architecture: WINDOWS Score: 100 66 fgtrert.duckdns.orgqweerreww.duckdns.org 2->66 68 fgtrert.duckdns.org 2->68 74 Found malware configuration 2->74 76 Malicious sample detected (through community Yara rule) 2->76 78 Multi AV Scanner detection for submitted file 2->78 80 12 other signatures 2->80 14 CHT International.exe 3 2->14         started        18 remcos.exe 2 2->18         started        20 remcos.exe 2 2->20         started        signatures3 process4 file5 60 C:\Users\user\...\CHT International.exe.log, ASCII 14->60 dropped 96 Injects a PE file into a foreign processes 14->96 22 CHT International.exe 4 5 14->22         started        25 CHT International.exe 14->25         started        27 remcos.exe 18->27         started        29 remcos.exe 20->29         started        signatures6 process7 file8 56 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 22->56 dropped 58 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 22->58 dropped 31 wscript.exe 1 22->31         started        process9 process10 33 cmd.exe 1 31->33         started        process11 35 remcos.exe 3 33->35         started        39 conhost.exe 33->39         started        file12 54 C:\Users\user\AppData\...\remcos.exe.log, ASCII 35->54 dropped 82 Multi AV Scanner detection for dropped file 35->82 84 Detected unpacking (creates a PE file in dynamic memory) 35->84 86 Machine Learning detection for dropped file 35->86 88 5 other signatures 35->88 41 remcos.exe 4 3 35->41         started        signatures13 process14 dnsIp15 70 fgtrert.duckdns.org 45.145.185.209, 8494 DEDIPATH-LLCUS Netherlands 41->70 72 fgtrert.duckdns.orgqweerreww.duckdns.org 41->72 90 Writes to foreign memory regions 41->90 92 Allocates memory in foreign processes 41->92 94 Injects a PE file into a foreign processes 41->94 45 svchost.exe 41->45         started        signatures16 process17 process18 47 iexplore.exe 45->47         started        process19 49 iexplore.exe 47->49         started        52 iexplore.exe 47->52         started        dnsIp20 62 github.com 140.82.121.4, 443, 49734, 49735 GITHUBUS United States 49->62 64 avatars.githubusercontent.com 185.199.108.133, 443, 49738, 49739 FASTLYUS Netherlands 49->64
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/848aee75718b5e635f13a64dcb64dd0c0d4d44228952d2941a9c4c1c14fd7ea1/
Threat name:
ByteCode-MSIL.Trojan.Pwsx
Create hunting rule
Status:
Malicious
First seen:
2021-02-16 02:46:07 UTC
AV detection:
12 of 29 (41.38%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qsfo45lrrnpggxytuzg4wzg5bqgu2rbcrfjnffa2trgbyfh5p2qq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
08c85e93e63fba43e25a3e7bf4e3d9b47783a8acf74a75be9eceffdc68d46cf4
RemcosRAT
1e84802e4da3346e3e59e6da6054df5e2dd12b5a8b4df058cef5a43108cf07df
RemcosRAT
707b7a71040cf271f095df37823268efda90905603fa025719806b68edf13045
RemcosRAT
80893e190d49fdc68aec0754db2ffe46c60dccecff6d6d42591858ddba315fa6
RemcosRAT
8d087e56deb745a40c704cd0a508f9f07b697b3ff44ae660ee581f7f42e4e160
RemcosRAT
a5c4ff37cba66018c7df21c2f69fc5e02f351acac0fb3db099ed71218a99dc4e
RemcosRAT
a8bcefc2310761d35f797a3d74edf9bbd5e3b144453f26e71924dca43d1966f0
RemcosRAT
ac03de9eb86c038c61523da3b2e8e8d6748f6f45762e44564547f96df37acbe4
RemcosRAT
b4ac6ef619dad164d5807395559ed299ce39cd5ec375aa86229d6617973a81fe
RemcosRAT
c053301127b648916dd0ec9318a9cd0f48a1acde54962e680ad94cf1167a4ef3
RemcosRAT
+ 49 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/210216-9gn42tdz4a/
Behaviour
Modifies registry class
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Unpacked files
SH256 hash:
698e6f3c69982aa721305f1d305e85ac403d82dd9b8e2970e5dba11ef9d39592
MD5 hash:
38b8e25cb862f7f156cfa75b18d4d565
SHA1 hash:
cbe083b5a8d8626404cb0e2e7d755a786a9fc7c9
Link:
https://www.unpac.me/results/18777e9c-4669-4f74-ad24-81f5667b8d74/
SH256 hash:
ce6c454e873fbfbcb1687855c40baafbc93be0a5c1b94ba2c112ad6696139fd8
MD5 hash:
51ec5074914e246b625e4804ddad7c53
SHA1 hash:
203ac95b3fac1586f6bd0476ed7f8558ca27a293
Detections:
win_remcos_g0
Create hunting rule
Link:
https://www.unpac.me/results/18777e9c-4669-4f74-ad24-81f5667b8d74/
Parent samples :
b4ac6ef619dad164d5807395559ed299ce39cd5ec375aa86229d6617973a81fe
848aee75718b5e635f13a64dcb64dd0c0d4d44228952d2941a9c4c1c14fd7ea1
8c0e5872f00565c21bdf5f5f930ebbfdb116913962150eb35fd3a603e058a045
c31d64d3488602019a27cdb355e3a75abf41c457d6d2aa26f6d88c2a4d3fc30a
SH256 hash:
2ec41720b412f91f91daaefea38007449491b2c016238aa8f23b6866c89bc788
MD5 hash:
987ce346069cf47535e5ac57265c7228
SHA1 hash:
d0085325ed78fcac6d1f605753237abd1c40db22
Link:
https://www.unpac.me/results/18777e9c-4669-4f74-ad24-81f5667b8d74/
SH256 hash:
848aee75718b5e635f13a64dcb64dd0c0d4d44228952d2941a9c4c1c14fd7ea1
MD5 hash:
f87e2aeb7bcbbb476a5d157602e47dca
SHA1 hash:
238f66f3053f2e154bf0a099aeab72698f6689e3
Link:
https://www.unpac.me/results/18777e9c-4669-4f74-ad24-81f5667b8d74/
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/848aee75718b5e635f13a64dcb64dd0c0d4d44228952d2941a9c4c1c14fd7ea1

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_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule

File information

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

Malspam

RemcosRAT

zip 94e8a6833f7e7c032ebf5d826f11876df763683aa55aa69a89fbfaef04937cfc

RemcosRAT

Executable exe 848aee75718b5e635f13a64dcb64dd0c0d4d44228952d2941a9c4c1c14fd7ea1

(this sample)

  
Dropped by
MD5 d8e447308f00fa0042a153471d08390f
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/117288/
  
Dropped by
SHA256 94e8a6833f7e7c032ebf5d826f11876df763683aa55aa69a89fbfaef04937cfc

Comments