MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 23b3b5a24a51826ddb55a28333f4bfb9455f891f946e7d71a8d1eb3bab1f02f2. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 23b3b5a24a51826ddb55a28333f4bfb9455f891f946e7d71a8d1eb3bab1f02f2
SHA3-384 hash: 7af72e47822144da70cdc5ccae43a7ed77b00a61b71551efd5651607ffcdbe6828cf0e2d5c49254b42c94581b9ca6daa
SHA1 hash: 166ab389ad2ec6985be965bb67959bfb44dd5e42
MD5 hash: b028bba4b62f463198c8968a58d78533
humanhash: kitten-jupiter-lion-victor
File name:b028bba4b62f463198c8968a58d78533.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:872'960 bytes
First seen:2023-04-14 06:57:34 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 24576:qHiU9iizZmnHiqcVO+6feQCpmYbxSx0kki9d0K:iiesvcgeXp/xSWvR
Threatray 1'921 similar samples on MalwareBazaar
TLSH T11A052300512CA3A3E69C8BBE386BD7002B73231BB774D61E688D10EB1911F85675AFD7
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 RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
237
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
Orderconfirmation.doc
Verdict:
Malicious activity
Analysis date:
2023-04-14 05:53:32 UTC
Tags:
exploit cve-2017-11882 loader keylogger remcos
Link:
https://app.any.run/tasks/134d795c-9724-4e58-b816-502316b67364

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/382200/
Detection(s):
Sanesecurity.Malware.28872.BadIN4.UNOFFICIAL
Create hunting rule

Win.Trojan.EmbeddedDotNetBinary-9940868-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
comodo packed
Link:
https://www.filescan.io/uploads/6438f97b8cbb8f4be303bbd3/reports/553b84e9-a8fe-4f3d-8e90-1b5743344ba3/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/23b3b5a24a51826ddb55a28333f4bfb9455f891f946e7d71a8d1eb3bab1f02f2
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/51c9947f-2871-4314-98fd-ebc8a06ca9be
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1213733
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Found malware configuration
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/23b3b5a24a51826ddb55a28333f4bfb9455f891f946e7d71a8d1eb3bab1f02f2/
Threat name:
ByteCode-MSIL.Trojan.Pwsx
Create hunting rule
Status:
Malicious
First seen:
2023-04-14 06:58:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
9 of 24 (37.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=eoz3liskkgbg3w2vukbth5f7xfcv7ci7srxh24ni2hvtxky7alza._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
10889504234fe600c781aefe6ba0918e2e1d98a777f6e4e03da6d006a06bffb0
RemcosRAT
2010a7e1a136a9881ba4db4beb99088ea77ea2997d36e6d1d16fc696b34fda8b
RemcosRAT
38455251726a64db957d8e30e6c1dc1ca2b10c35691dadbcf3bf8172babe94e3
RemcosRAT
3a7511034e72aa8874f3763cb01604464c74571237bc08906578ed9dcf2c137f
RemcosRAT
3d35655b8a265b213dba9d23a9542e024895cba4c18dbfb782cb844125c23654
RemcosRAT
b19c0bb20a5fe51658666464950c582cef626cdf1f50bf5c775109a0cf2267db
RemcosRAT
b84d775cf5de9234ec178e4a94c5c459f0c6e8ad3bffc977ba20b116b4d9d88e
RemcosRAT
c9ec59e23695adca831f06aca398c511cac81f2fd65c7353f14b4725791ab80a
RemcosRAT
cadf95355bd6ea18fdd3555ea3f85d102f40b3df0dc36b332f9ad8b505105f6e
RemcosRAT
f3e4dd541766cd7a3af91ef964b91ded632f13ebe69bd4fb5eadd563c0207059
RemcosRAT
+ 1'911 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/230414-hrg1fsgg62/
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:
bmarch459.sytes.net:6110
Unpacked files
SH256 hash:
40c050c20d957d26b932faf690f9c2933a194aa6607220103ec798f46ac03403
MD5 hash:
c768bac25fc6f0551a11310e7caba8d5
SHA1 hash:
95f9195e959fb48277c95d1dd1c97a4edff7cb3a
Link:
https://www.unpac.me/results/2a2a29e2-86b8-466f-bbcb-b55533c7c54a/
SH256 hash:
1a74b799c1a40a793e526da7e8e0de843cd00a39fd21736888fa42ed399de005
MD5 hash:
4d61d1ba711188097ea6d10b4175a7ec
SHA1 hash:
91c0382c4470028b26f4ba4d96bf09556827663c
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/2a2a29e2-86b8-466f-bbcb-b55533c7c54a/
Parent samples :
3d35655b8a265b213dba9d23a9542e024895cba4c18dbfb782cb844125c23654
23b3b5a24a51826ddb55a28333f4bfb9455f891f946e7d71a8d1eb3bab1f02f2
7f930ad707464ff08068026c219b7d470da3adedf984f0b0897e1adb4126440d
59d9df7e128711ba9e34b6a6cac31cd50e25c5e350849abfc1b53e8c25854719
27d5b86fa6821ac78a1ad2ad6dbc94cd34d24e461ebc1fa15a0014acd4cd71d6
fe5441d6898cf0dea8ca087588a0b8cbc0154a011f4b81de03d370a237b86ebf
SH256 hash:
36a52b3523d7a443b80f135808dbaab3125ead8d53a17765cc9e37faef2adf4a
MD5 hash:
dfa6d3087481c003d42cac340bdd6260
SHA1 hash:
7eda8e9c972da97da603b09df1165b79ae4afbba
Link:
https://www.unpac.me/results/2a2a29e2-86b8-466f-bbcb-b55533c7c54a/
SH256 hash:
0979772adad7906f160df43d4cfa216cd05e0ac519ffe902b00ba5f7f78dfdaf
MD5 hash:
fb4ba987b9aab2aa3c0abc5a55dd6125
SHA1 hash:
5b34f2ce6232ef02777e669e95f5597aac850959
Link:
https://www.unpac.me/results/2a2a29e2-86b8-466f-bbcb-b55533c7c54a/
SH256 hash:
f074b2c09142fa55caae482b5ec6ba350fda0ac62329bb825d61f21e2e7059a1
MD5 hash:
567bbf43aac601560b1def4a872d4089
SHA1 hash:
21dfc6e6ecf39c9c23927c114ca911559ca4593e
Link:
https://www.unpac.me/results/2a2a29e2-86b8-466f-bbcb-b55533c7c54a/
SH256 hash:
23b3b5a24a51826ddb55a28333f4bfb9455f891f946e7d71a8d1eb3bab1f02f2
MD5 hash:
b028bba4b62f463198c8968a58d78533
SHA1 hash:
166ab389ad2ec6985be965bb67959bfb44dd5e42
Link:
https://www.unpac.me/results/2a2a29e2-86b8-466f-bbcb-b55533c7c54a/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/23b3b5a24a51/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Dotnet_Hidden_Executables_Detect
Create hunting rule
Author:Mehmet Ali Kerimoglu (@CYB3RMX)
Description:This rule detects hidden PE file presence.
Reference:https://github.com/CYB3RMX/Qu1cksc0pe
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.

Web download

RemcosRAT

Executable exe 23b3b5a24a51826ddb55a28333f4bfb9455f891f946e7d71a8d1eb3bab1f02f2

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2295669/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/382200/

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