MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 737cedd9e82602536f0b02d2608b856c49b158928de47bb891d401bae810bdc4. 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: 17


Intelligence 17 IOCs YARA 15 File information Comments
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SHA256 hash: 737cedd9e82602536f0b02d2608b856c49b158928de47bb891d401bae810bdc4
SHA3-384 hash: 6ad99732b1d551240822269979fe171a0dad8becec11392d437cd1cf7cd067eac51db488c203766d780ae9a907f5baeb
SHA1 hash: 18c47e58c9f19d5e5a47b661a41063bce7008ec5
MD5 hash: 6c8cbdc86413e22170390a8d9c482073
humanhash: one-queen-neptune-magazine
File name:SecuriteInfo.com.Win32.RATX-gen.13379.23173
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'037'312 bytes
First seen:2024-02-09 09:17:27 UTC
Last seen:2024-02-12 08:32:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'610 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:EGUmDDxcxFlRhhXOYtiP1mD9qL6EwthL3LQxM7OyeNBnVj/K1:EGZfx+vRhOi9qathLEm7OrvV
Threatray 3'475 similar samples on MalwareBazaar
TLSH T13525E09C765075DFC80BCD7689A81CA4AA6174BB930BD203A06316EC9E0DADBCF145F7
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter SecuriteInfoCom
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
361
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
737cedd9e82602536f0b02d2608b856c49b158928de47bb891d401bae810bdc4.exe
Verdict:
Malicious activity
Analysis date:
2024-02-09 09:18:35 UTC
Tags:
rat remcos remote keylogger
Link:
https://app.any.run/tasks/3d62c051-d95f-40a5-aed2-e6a253a00aef

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/475554/
Detection(s):
SecuriteInfo.com.Win32.RATX-gen.13379.23173.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed remcos
Link:
https://www.filescan.io/uploads/65c5edce4f2aaf5fb5fa24cb/reports/2710448c-a75b-47fd-a79b-90f54a20f059/overview
Verdict:
Malicious
Labled as:
Barys.Generic
Link:
https://www.hybrid-analysis.com/sample/737cedd9e82602536f0b02d2608b856c49b158928de47bb891d401bae810bdc4
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/eaaeb188-74e2-4097-b362-b0308293dbd9
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1389650
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
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
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
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: 1389650 Sample: SecuriteInfo.com.Win32.RATX... Startdate: 09/02/2024 Architecture: WINDOWS Score: 100 49 geoplugin.net 2->49 55 Multi AV Scanner detection for domain / URL 2->55 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 13 other signatures 2->61 8 abRnrlkUj.exe 5 2->8         started        11 SecuriteInfo.com.Win32.RATX-gen.13379.23173.exe 7 2->11         started        signatures3 process4 file5 63 Antivirus detection for dropped file 8->63 65 Multi AV Scanner detection for dropped file 8->65 67 Contains functionality to bypass UAC (CMSTPLUA) 8->67 77 7 other signatures 8->77 14 schtasks.exe 8->14         started        16 abRnrlkUj.exe 8->16         started        18 abRnrlkUj.exe 8->18         started        20 abRnrlkUj.exe 8->20         started        45 C:\Users\user\AppData\Roaming\abRnrlkUj.exe, PE32 11->45 dropped 47 C:\Users\user\AppData\Local\...\tmpE8D7.tmp, XML 11->47 dropped 69 Detected unpacking (changes PE section rights) 11->69 71 Detected unpacking (overwrites its own PE header) 11->71 73 Uses schtasks.exe or at.exe to add and modify task schedules 11->73 75 Adds a directory exclusion to Windows Defender 11->75 22 SecuriteInfo.com.Win32.RATX-gen.13379.23173.exe 3 15 11->22         started        27 powershell.exe 22 11->27         started        29 powershell.exe 23 11->29         started        31 2 other processes 11->31 signatures6 process7 dnsIp8 33 conhost.exe 14->33         started        51 84.38.132.126, 49714, 61445 DATACLUBLV Latvia 22->51 53 geoplugin.net 178.237.33.50, 49717, 80 ATOM86-ASATOM86NL Netherlands 22->53 43 C:\ProgramData\remcos\logs.dat, data 22->43 dropped 79 Installs a global keyboard hook 22->79 35 conhost.exe 27->35         started        37 WmiPrvSE.exe 27->37         started        39 conhost.exe 29->39         started        41 conhost.exe 31->41         started        file9 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/737cedd9e82602536f0b02d2608b856c49b158928de47bb891d401bae810bdc4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/737cedd9e82602536f0b02d2608b856c49b158928de47bb891d401bae810bdc4/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-02-09 07:17:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=on6o3wpieybfg3ylaljgbc4fnre3cwesrxshxoer2qa3v2aqxxca._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
3e32447ea3b5f07c7f6a180269f5443378acb32c5d0e0bf01a5e39264f691587
RemcosRAT
728e6e2b92f46c84865ec974f440661f40b8df3f328a7c2bd842c1c697f6c992
RemcosRAT
82703bb5de0f44978e23f29a593094ae3951c3a623bb40bfd54238978e3c8819
RemcosRAT
86b4d9c62ca9eccd9341136d5d4831548ccb79ed000f29e8a8cc0afcbe639c90
RemcosRAT
9c365f7df9b2bb958a53890dc80a258de1f5ea0781155f7c2b3741b9dd593867
RemcosRAT
a0c4a547b08cd4669362420f9c50b04f084e0174f13911f4e8b95cec7ba12cd8
RemcosRAT
fc4fb593fdecc5e6c82c0c98decab2ccd213153078489787712a082c299d20cd
RemcosRAT
+ 3'465 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:p2-bin rat
Link:
https://tria.ge/reports/240209-k9mprsbg55/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Remcos
Malware Config
C2 Extraction:
84.38.132.126:61445
Unpacked files
SH256 hash:
623c1989571b16e4472971ededede276edb52d75652e5fa9c8d915525a6c55ce
MD5 hash:
e4f9a91345875eebcec0f0600c771fa3
SHA1 hash:
a68bde2b6e567c7d06f9d95eddcf9360c3c97487
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/fc92757b-a749-4613-a633-0142609e2760/
Parent samples :
737cedd9e82602536f0b02d2608b856c49b158928de47bb891d401bae810bdc4
3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b
SH256 hash:
5fe50b7d9a6e9214e727581ebb1dfeb43e175c39ba3966684030f5da4c0c64bf
MD5 hash:
f6b2186dd134aed59815a420cc5ccc8c
SHA1 hash:
569326a8f69da0b50854f18c86805b019cd902fd
Link:
https://www.unpac.me/results/fc92757b-a749-4613-a633-0142609e2760/
SH256 hash:
1f4c849947b2a9aad39f20c1c7a9b6d39c55060f9d32b9ce8235b64019f1e06b
MD5 hash:
576fafc162d4896471eecac27df72e51
SHA1 hash:
54a5e2e8d5ae84f65d3cb4bb4613a9fdd4ceb94d
Link:
https://www.unpac.me/results/fc92757b-a749-4613-a633-0142609e2760/
SH256 hash:
c826e8d1a44c4c8e1c84e5c561037b1850b5d6bffcc36e11f111b4ebe379c0af
MD5 hash:
dc799d2fcc59ba38157aaf431c9aefef
SHA1 hash:
25a6e473d78b63d8c635fcdbb0cada01c310927d
Link:
https://www.unpac.me/results/fc92757b-a749-4613-a633-0142609e2760/
SH256 hash:
737cedd9e82602536f0b02d2608b856c49b158928de47bb891d401bae810bdc4
MD5 hash:
6c8cbdc86413e22170390a8d9c482073
SHA1 hash:
18c47e58c9f19d5e5a47b661a41063bce7008ec5
Link:
https://www.unpac.me/results/fc92757b-a749-4613-a633-0142609e2760/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/737cedd9e826/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/737cedd9e82602536f0b02d2608b856c49b158928de47bb891d401bae810bdc4

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

rar c111221c3c59b9f9c50d57c3880a4c09ecbc358e5bbe69e44b3945660ceb07bb

RemcosRAT

Executable exe 737cedd9e82602536f0b02d2608b856c49b158928de47bb891d401bae810bdc4

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/475554/
  
Dropped by
SHA256 c111221c3c59b9f9c50d57c3880a4c09ecbc358e5bbe69e44b3945660ceb07bb
  
Dropped by
MD5 e03428797abb4b701df5e4699c7bec9d

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