MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f6c430b1e0bb1a26107c680629aee4c56c858b427eeffd016118e50de980f251. 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: 18


Intelligence 18 IOCs YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f6c430b1e0bb1a26107c680629aee4c56c858b427eeffd016118e50de980f251
SHA3-384 hash: 52c1321ff8b60efc1c677c816987e1609e831e9171f22ac9b279481294aba3ef8eb3029a05817e285023920352337a85
SHA1 hash: a559afd1a6a5fe9e958bb33b4e98cbea47c8c407
MD5 hash: 4c6adac3c48411a762b612e4b92c1798
humanhash: steak-one-fourteen-hawaii
File name:AWB 5331810761.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:891'392 bytes
First seen:2023-11-21 12:42:22 UTC
Last seen:2023-11-21 14:19:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:FDZXuqBmt/TyM5zVoTNsXboalrivoSVD4Si:H9Bmt7fzVoTaXP4oSV
Threatray 4'321 similar samples on MalwareBazaar
TLSH T15415236C6DC1EF69CADE0A7508F4D0CA47F4A610A82BEF4A4D92595D4C2F7BC81D078E
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)
File icon (PE):PE icon
dhash icon 3000f07171b04430 (8 x AgentTesla, 1 x RemcosRAT)
Reporter lowmal3
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
333
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
AWB 5331810761.exe
Verdict:
Malicious activity
Analysis date:
2023-11-21 12:43:42 UTC
Tags:
rat remcos remote
Link:
https://app.any.run/tasks/e4506983-8f2b-4f66-a85c-2cf5f0addddc

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/459513/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
DNS request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/655ca5d8572de6e10cb156d3/reports/e2f01a20-c94b-4157-84fc-bd47443d99db/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/f6c430b1e0bb1a26107c680629aee4c56c858b427eeffd016118e50de980f251
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/df110a68-60c7-4dc4-9ebb-2d48f538368c
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1345782
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
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
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
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1345782 Sample: AWB_5331810761.exe Startdate: 21/11/2023 Architecture: WINDOWS Score: 100 39 geoplugin.net 2->39 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus detection for URL or domain 2->49 51 10 other signatures 2->51 8 mtOEpu.exe 5 2->8         started        11 AWB_5331810761.exe 7 2->11         started        signatures3 process4 file5 53 Multi AV Scanner detection for dropped file 8->53 55 Contains functionality to bypass UAC (CMSTPLUA) 8->55 57 Contains functionalty to change the wallpaper 8->57 65 6 other signatures 8->65 14 schtasks.exe 1 8->14         started        16 mtOEpu.exe 8->16         started        18 mtOEpu.exe 8->18         started        35 C:\Users\user\AppData\Roaming\mtOEpu.exe, PE32 11->35 dropped 37 C:\Users\user\AppData\Local\...\tmp380B.tmp, XML 11->37 dropped 59 Uses schtasks.exe or at.exe to add and modify task schedules 11->59 61 Adds a directory exclusion to Windows Defender 11->61 63 Injects a PE file into a foreign processes 11->63 20 AWB_5331810761.exe 3 14 11->20         started        23 powershell.exe 22 11->23         started        25 schtasks.exe 1 11->25         started        signatures6 process7 dnsIp8 27 conhost.exe 14->27         started        41 91.92.242.85, 4285, 49708 THEZONEBG Bulgaria 20->41 43 geoplugin.net 178.237.33.50, 49710, 80 ATOM86-ASATOM86NL Netherlands 20->43 29 conhost.exe 20->29         started        31 conhost.exe 23->31         started        33 conhost.exe 25->33         started        process9
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f6c430b1e0bb1a26107c680629aee4c56c858b427eeffd016118e50de980f251
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f6c430b1e0bb1a26107c680629aee4c56c858b427eeffd016118e50de980f251/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-11-21 12:43:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
19 of 22 (86.36%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=63cdbmpaxmncmed4nadctlxeyvwilc2cp3x72albddsq32ma6jiq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
2e5c4d023167875977767da513d8889f1fc09fb18fdadfd95c66a6a890b5ca3f
RemcosRAT
483d7f7379d43c9fb3effb226cb58a443f48105bda3a9a6310a76729d7c1b3bd
RemcosRAT
491a7d02ded7d63a9a098e361513409c040eeb9e8e03f38c2a1ec1e5d322c3f8
RemcosRAT
52e86b12783755a700ee53510574a5a3d99ecf2bfa5468438a5addef9bfe75c4
RemcosRAT
f6c430b1e0bb1a26107c680629aee4c56c858b427eeffd016118e50de980f251
RemcosRAT
+ 4'311 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:admin rat
Link:
https://tria.ge/reports/231121-pxw5wsfb51/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Remcos
Malware Config
C2 Extraction:
91.92.242.85:4285
Unpacked files
SH256 hash:
3fc435481d7ef0079bdad4dd86185e61a5092a5df4a3e17a75266cf283effaa1
MD5 hash:
ead80ad88662af6f37f0c49fe6e3fb44
SHA1 hash:
dbeb4019c7337347d1c6d0913c9249021cafd849
Link:
https://www.unpac.me/results/84f793c5-2a08-4f48-8c2c-045b0b17c7a3/
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/84f793c5-2a08-4f48-8c2c-045b0b17c7a3/
SH256 hash:
2591f182342ee9cd09d56338892d140c7eb901fa5bbe693783ca06cfc8d244fc
MD5 hash:
0d87a6677134a7d3fd5bd34b03ee4be2
SHA1 hash:
5cc34db166e7aac14c8251a9930c8f9a36b21b9c
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_rat_unpacked
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
Link:
https://www.unpac.me/results/84f793c5-2a08-4f48-8c2c-045b0b17c7a3/
Parent samples :
43456ca9a4bb3e0570211c5120caf389756f2a38a6dc38290471a1f58e9fbbfb
7577b9bf9939eb0865359788ce1f0d96eee3f79d401e5fa8ebb3e05d507f46d1
f6c430b1e0bb1a26107c680629aee4c56c858b427eeffd016118e50de980f251
0f9412ecf0cc7aed883fb1dadd80dbd59115b20ad5076b79854ec07e062b00f3
bd4d24cb135194ab4f43d8b8d93ea81b73dad049a686577eb385a00195e69dbd
SH256 hash:
2d729a403aaaac6af71b32f8d0a0c38311a946044e92d710f598d86da712d1ac
MD5 hash:
4dc26b1ad7241fdb5a6e2f979eeb2f6f
SHA1 hash:
1bb0cf44cbbb0bad39f837a7500d763708360477
Link:
https://www.unpac.me/results/84f793c5-2a08-4f48-8c2c-045b0b17c7a3/
SH256 hash:
f6c430b1e0bb1a26107c680629aee4c56c858b427eeffd016118e50de980f251
MD5 hash:
4c6adac3c48411a762b612e4b92c1798
SHA1 hash:
a559afd1a6a5fe9e958bb33b4e98cbea47c8c407
Link:
https://www.unpac.me/results/84f793c5-2a08-4f48-8c2c-045b0b17c7a3/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f6c430b1e0bb/report/overview.html
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/f6c430b1e0bb1a26107c680629aee4c56c858b427eeffd016118e50de980f251

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: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: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.

Malspam

RemcosRAT

Executable exe f6c430b1e0bb1a26107c680629aee4c56c858b427eeffd016118e50de980f251

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/459513/

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