MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 20dce91112af0877f90dc6a13884380b3be7ac57192f4648660785fb0ca52d59. 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 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 20dce91112af0877f90dc6a13884380b3be7ac57192f4648660785fb0ca52d59
SHA3-384 hash: 123aa9ebf9760f6560dad1db6ee25dbad787c442cd5be5b8c80676672328179b6fe87f3ffd7d03aa89d60fc7da5d73a3
SHA1 hash: 9cbd8bc774dab51b9de1aedc4db2f8c8bc849ef2
MD5 hash: befa5caf0d58431b6d84d14207a5e06e
humanhash: single-burger-carbon-seven
File name:Overdue Invoice.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'018'880 bytes
First seen:2023-11-06 09:35:11 UTC
Last seen:2023-11-06 11:16:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:AK/WTXydcJ4TF0J8cfKHdVZ9iyg0jufd9:AK/WTiddTF0J5fYRmfd9
TLSH T100251204A3F9BB27E5BA97FA4475644907B024BE64BDD64D4CC1B8CB05B2F042B52F2B
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
194.147.140.212:1999

Intelligence

File Origin
# of uploads :
2
# of downloads :
415
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/458205/
Detection(s):
SecuriteInfo.com.Win32.TrojanX-gen.26453.27039.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for synchronization primitives
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Setting a keyboard event handler
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed remcos
Link:
https://www.filescan.io/uploads/6548b387946b6ab224591aa9/reports/b135d419-03d2-4db1-a081-fd24943e1df0/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/20dce91112af0877f90dc6a13884380b3be7ac57192f4648660785fb0ca52d59
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:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5dc85e03-6276-455e-b8fc-3cff09669015
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1337529
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
Contains functionality to modify clipboard data
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Snort IDS alert for network traffic
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 / registry access)
Tries to steal Mail credentials (via file registry)
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1337529 Sample: Overdue_Invoice.exe Startdate: 06/11/2023 Architecture: WINDOWS Score: 100 27 geoplugin.net 2->27 39 Snort IDS alert for network traffic 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 11 other signatures 2->45 8 Overdue_Invoice.exe 3 2->8         started        signatures3 process4 signatures5 47 Contains functionality to bypass UAC (CMSTPLUA) 8->47 49 Tries to steal Mail credentials (via file registry) 8->49 51 Contains functionalty to change the wallpaper 8->51 53 7 other signatures 8->53 11 Overdue_Invoice.exe 3 15 8->11         started        process6 dnsIp7 29 194.147.140.212, 1999, 49731, 49742 PTPEU unknown 11->29 31 geoplugin.net 178.237.33.50, 49733, 80 ATOM86-ASATOM86NL Netherlands 11->31 25 C:\ProgramData\remcos\logs.dat, data 11->25 dropped 55 Maps a DLL or memory area into another process 11->55 57 Installs a global keyboard hook 11->57 16 Overdue_Invoice.exe 1 11->16         started        19 Overdue_Invoice.exe 1 11->19         started        21 Overdue_Invoice.exe 2 11->21         started        23 2 other processes 11->23 file8 signatures9 process10 signatures11 33 Tries to steal Instant Messenger accounts or passwords 16->33 35 Tries to harvest and steal browser information (history, passwords, etc) 16->35 37 Tries to steal Mail credentials (via file / registry access) 19->37
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/20dce91112af0877f90dc6a13884380b3be7ac57192f4648660785fb0ca52d59
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/20dce91112af0877f90dc6a13884380b3be7ac57192f4648660785fb0ca52d59/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2023-11-06 09:36:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=edooseisv4ehp6iny2qtrbbybm56plcxdexumsdga6c7wdfffvmq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:good rat
Link:
https://tria.ge/reports/231106-lkxdcabh34/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Remcos
Malware Config
C2 Extraction:
194.147.140.212:1999
Unpacked files
SH256 hash:
2d6cfe09bd8d3837ca47a3f5a9716568c20bfd91d5684cab29afecb996fd81bc
MD5 hash:
396d082d02746822e87c85dba4421c0f
SHA1 hash:
e6615351c6d70787d9860927caa7ccc845572e1b
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/8bd76c48-a051-4c80-8e58-16f7ed690cd8/
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/8bd76c48-a051-4c80-8e58-16f7ed690cd8/
SH256 hash:
d8e8ba900247e39fbba02c06ff0e88fbafabd9f1bd6fa7dee940134c6322653a
MD5 hash:
35f6ede45e86dfa92ca8423c4ad7c46b
SHA1 hash:
5c600105b70b1cb42c9e1b52a810481c360c3a69
Link:
https://www.unpac.me/results/8bd76c48-a051-4c80-8e58-16f7ed690cd8/
SH256 hash:
bfef9eac82e53e8d63bcb3b3022880eaf8f22cbbc6c69f3782b59c438f649f12
MD5 hash:
ddf81912128dd196140e9be656c3a212
SHA1 hash:
51221baf7115f7f2de03cd00b8b25cfde9241a35
Link:
https://www.unpac.me/results/8bd76c48-a051-4c80-8e58-16f7ed690cd8/
SH256 hash:
20dce91112af0877f90dc6a13884380b3be7ac57192f4648660785fb0ca52d59
MD5 hash:
befa5caf0d58431b6d84d14207a5e06e
SHA1 hash:
9cbd8bc774dab51b9de1aedc4db2f8c8bc849ef2
Link:
https://www.unpac.me/results/8bd76c48-a051-4c80-8e58-16f7ed690cd8/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/20dce91112af/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/20dce91112af0877f90dc6a13884380b3be7ac57192f4648660785fb0ca52d59

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
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:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
Rule name:win_remcos_w0
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Create hunting rule
Author:Matthew @ Embee_Research

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/458205/

Comments