MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 23af85d9373c400f00f17590112f4545c9a522427bf6e1de80dcb028b8538bbd. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 23af85d9373c400f00f17590112f4545c9a522427bf6e1de80dcb028b8538bbd
SHA3-384 hash: 2eba40c4b7efb337fc2b7e7b5540bf3ad059369c60248c4dc1b3929dd51d0fe14640cee64dde37174799e694c5622cfd
SHA1 hash: 2430b0940aabcfb61121d23ce1536cb39bb9b747
MD5 hash: ebb1e4da68836326013efc9c468a4294
humanhash: mountain-colorado-sad-bluebird
File name:Bill No. SFSAH24-23-394 PDF.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:903'680 bytes
First seen:2023-04-19 12:55:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 24576:EBBZvWgK7pND3ZoY7kNAza6HJxjoKRxlHlpu790G:GVWgK7XD3ZoY7bXzE+lHlpa0
Threatray 1'847 similar samples on MalwareBazaar
TLSH T1821512ADA7E5DAA7C5580F7E0006219D3B7451E3363AC278EF47419EEB87F084D99283
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter cocaman
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
278
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
Bill No. SFSAH24-23-394 PDF.exe
Verdict:
Malicious activity
Analysis date:
2023-04-19 12:58:56 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/148a832f-1297-4095-9e85-a899a0522f5c

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/383288/
Detection(s):
Sanesecurity.Malware.28872.BadIN4.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/643fe4e47a31c790ffdbd8ad/reports/b4559310-2ff7-48f2-a457-9474cd2988db/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/23af85d9373c400f00f17590112f4545c9a522427bf6e1de80dcb028b8538bbd
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/9fed8946-57e1-4539-96b5-6430bfba7a6c
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1217559
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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 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: 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 Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 850499 Sample: Bill_No._SFSAH24-23-394_PDF.exe Startdate: 20/04/2023 Architecture: WINDOWS Score: 100 48 Multi AV Scanner detection for domain / URL 2->48 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 9 other signatures 2->54 7 Bill_No._SFSAH24-23-394_PDF.exe 7 2->7         started        11 pYFXaTgYnO.exe 5 2->11         started        process3 file4 36 C:\Users\user\AppData\...\pYFXaTgYnO.exe, PE32 7->36 dropped 38 C:\Users\...\pYFXaTgYnO.exe:Zone.Identifier, ASCII 7->38 dropped 40 C:\Users\user\AppData\Local\...\tmpBC96.tmp, XML 7->40 dropped 42 C:\...\Bill_No._SFSAH24-23-394_PDF.exe.log, ASCII 7->42 dropped 56 Uses schtasks.exe or at.exe to add and modify task schedules 7->56 58 Adds a directory exclusion to Windows Defender 7->58 60 Injects a PE file into a foreign processes 7->60 13 Bill_No._SFSAH24-23-394_PDF.exe 2 2 7->13         started        18 powershell.exe 21 7->18         started        20 schtasks.exe 1 7->20         started        22 Bill_No._SFSAH24-23-394_PDF.exe 7->22         started        62 Multi AV Scanner detection for dropped file 11->62 64 Machine Learning detection for dropped file 11->64 24 schtasks.exe 1 11->24         started        26 pYFXaTgYnO.exe 11->26         started        28 pYFXaTgYnO.exe 11->28         started        signatures5 process6 dnsIp7 46 51.75.209.245, 2406 OVHFR France 13->46 44 C:\ProgramData\remcos\logs.dat, data 13->44 dropped 66 Installs a global keyboard hook 13->66 30 conhost.exe 18->30         started        32 conhost.exe 20->32         started        34 conhost.exe 24->34         started        file8 signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/23af85d9373c400f00f17590112f4545c9a522427bf6e1de80dcb028b8538bbd/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-04-19 09:24:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=eoxylwjxhraa6ahrowibcl2fixe2kiscpp3odxua3sycroctro6q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0c5bd52278038e9194792544aa9ba56fa2fc62cdd74b5f5e47d8ab6ee7db5d0e
RemcosRAT
10889504234fe600c781aefe6ba0918e2e1d98a777f6e4e03da6d006a06bffb0
RemcosRAT
187e9a262dac093e04914b16b11f41adec97c3115f4a6b5e5cf1125d2be8eeca
RemcosRAT
23b3b5a24a51826ddb55a28333f4bfb9455f891f946e7d71a8d1eb3bab1f02f2
RemcosRAT
3d35655b8a265b213dba9d23a9542e024895cba4c18dbfb782cb844125c23654
RemcosRAT
475bd18814dd4181d931894380857accd1428b171ae2f077a6b706411a0005ef
RemcosRAT
6760ae6bf21620a631a5fd3c6d56a01080be0fa127db8322ec2eb87ce17728e7
RemcosRAT
8aad378acd6bb2912809751007cc762facf7eefcc867b5fd8ace1e1728329c08
RemcosRAT
9d4c77bd302c7e10db596ec2584943791c5c70038014fd786735cb0f4e2b931a
RemcosRAT
b84d775cf5de9234ec178e4a94c5c459f0c6e8ad3bffc977ba20b116b4d9d88e
RemcosRAT
+ 1'837 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost rat
Link:
https://tria.ge/reports/230419-p6b63saf27/
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:
51.75.209.245:2406
Unpacked files
SH256 hash:
fa05711139c3fa43c711c276f195438e3d92837f512a42a7d8d5f5b3e6baa0d4
MD5 hash:
8ed8ab5cf24bef5d4356da8cd01e36c6
SHA1 hash:
e8b107e95286bcb8a5941d7dc0bf8e0c7f9adea9
Link:
https://www.unpac.me/results/b65e9dbc-80fb-4d83-839d-0d2f78c8dc0f/
SH256 hash:
8502bfe74918cc2fc0d3b8565167ff1c0dc2e11c1f25406076ffce9dc7f3dd10
MD5 hash:
62d90bd5cc3df4c50c383ac06b85bd21
SHA1 hash:
997cf4f40921fc312f4c1a87f1d71bb9487ccb33
Detections:
Remcos
Create hunting rule
raccoonstealer
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/b65e9dbc-80fb-4d83-839d-0d2f78c8dc0f/
Parent samples :
c64b3ee3dfd544007588d8c520a074ce31491ca1d59e379c0f2a1883c952508c
ae99e5f5eb81585b852e6dcf8657b0c3b41b450e00f9598897cb9881c46c0202
d26656040bd7bea16a5d9fa6d1ebd5696592bb06e998a7ac2bac3f09a5ef8b5b
e359436a84893d01ef907930d534a4e7688da9e02efcf42875bd69410dfff89c
3bb3809def3682ee9d4f1dee904c6e09ebf574a48f2c0edba910313ee2e4d9dc
52e2a0d6ec4940ac71db48d62f8de4fa9ea7ea4a0abfaff91175ea2e0ec0d998
edce5dbfb898a647b0c7065a87a14c62a28f3bb95912ff842a23ba95d488fb47
7a2d285fe35b5030edfc71be23f97d3dc8ace48f6a7183135bd59c14d8dfd33f
fe13c562eb51184678071a87b4a1383fd1103b867c45510895d9cc9a817b155b
8b6a0f607c8aa32a95838d10b496bdbd68b86a457ef49f8043badb21f5b12b2a
07050af33c4d45af03caa34bbf61a832ec4cfb84535aaae85097176e0defcf11
32369a358b4448ddac71ca827be83465a2afc4be4d64b8693fbc0bac455b08a1
3c336f0766602ad44789d9fecbc8a2ec417bcdf97bb5dd091c8587d0507bb1bc
56fc6644385db6a7e927858e276af6f8e6a33302f82bde48633975ba452954a2
3696d769fc0cfbf1d2e53dc532c7f33ac7fbad2eb7744f8df3e188734e2c5472
05a5e41d72b42e2ab08a2b9afce8780ba729f20128a86b83e649df6292a4e7b0
0771775f6646f28170c196d4ddba3ecdd1b0ada28c15dcc5b85f5c374c7b6987
acdead749ad0efa2a07733904a8c37c75d94db2d2fadf2b22a5dee38499b40f9
2e5243c0f25a508026aa4bc82e7cdddd2df91f556c8509ac6e2b60d3ef17b517
6760ae6bf21620a631a5fd3c6d56a01080be0fa127db8322ec2eb87ce17728e7
8aad378acd6bb2912809751007cc762facf7eefcc867b5fd8ace1e1728329c08
c4696bab213507b524fecce34faa2c1594669a95593f6ff1abf76cfa329b7b58
50e39da793e84dc45780be3dca5aed8fa300ae2aaf7708a58da92e31865f2e81
9bfac87ca7cc550553ff3db0da040499c96ff7d68c694243e07c06017da63b8b
892ec6b7d5d18610afae6178542d991ee4b6b47adc7b61a02f78cc270f0cb84a
9c530365dda476ecf306d42b00922e73a98d4d213c6dea99953e6412e21a39af
23af85d9373c400f00f17590112f4545c9a522427bf6e1de80dcb028b8538bbd
5af982e3e7bfb72f09c58c942243bda454f917bc5e0a5b048e579b2c5faa1085
d89c98d73846067d4468833805f50a5830208fa4e5512b5144ef764b339b264c
SH256 hash:
40c050c20d957d26b932faf690f9c2933a194aa6607220103ec798f46ac03403
MD5 hash:
c768bac25fc6f0551a11310e7caba8d5
SHA1 hash:
95f9195e959fb48277c95d1dd1c97a4edff7cb3a
Link:
https://www.unpac.me/results/b65e9dbc-80fb-4d83-839d-0d2f78c8dc0f/
SH256 hash:
5e5c8fe4e53980a98b48fe6b19155edf0f0d285ed899c61dbf4f880583ddf1d2
MD5 hash:
b3bbc5461d12f07ea893bf415dfe7c89
SHA1 hash:
40c3156c471d2afe3fd88c7d20cf93e5782e1bd6
Link:
https://www.unpac.me/results/b65e9dbc-80fb-4d83-839d-0d2f78c8dc0f/
SH256 hash:
fcc53cb32404974d88813b97a5099f86a4aabb22f402a3514065160c54db1802
MD5 hash:
16222ff4ed627b07228e19e7bb5cb473
SHA1 hash:
250f8e5329480780eedf45f4d339197a2c9506d6
Link:
https://www.unpac.me/results/b65e9dbc-80fb-4d83-839d-0d2f78c8dc0f/
SH256 hash:
23af85d9373c400f00f17590112f4545c9a522427bf6e1de80dcb028b8538bbd
MD5 hash:
ebb1e4da68836326013efc9c468a4294
SHA1 hash:
2430b0940aabcfb61121d23ce1536cb39bb9b747
Link:
https://www.unpac.me/results/b65e9dbc-80fb-4d83-839d-0d2f78c8dc0f/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/23af85d9373c/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/23af85d9373c400f00f17590112f4545c9a522427bf6e1de80dcb028b8538bbd

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

RemcosRAT

ace 5bed37b819a1e3f3ac571524a1086c4969e7df93aadd759311c005be0a8c0499

RemcosRAT

Executable exe 23af85d9373c400f00f17590112f4545c9a522427bf6e1de80dcb028b8538bbd

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 5bed37b819a1e3f3ac571524a1086c4969e7df93aadd759311c005be0a8c0499
Cape
Cape
https://www.capesandbox.com/analysis/383288/
  
Dropped by
MD5 9eb09418887bd63102bbae65499352f2

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