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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c4ec288c3ae80a59a799b95facdccf7a1678f8d4d354d2c07019f078c2d90988. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c4ec288c3ae80a59a799b95facdccf7a1678f8d4d354d2c07019f078c2d90988
SHA3-384 hash: 71aa67f82e7b5650e951678070ee269bd636ab96fa3b2165e933aae1a0e1c060b92c0e0183477820739193c791110e58
SHA1 hash: ae79257049ca56a315245233c29e88e55852d269
MD5 hash: 547805ed81de01127783eb1800aefc84
humanhash: august-butter-sweet-lithium
File name:lib64.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:2'700'800 bytes
First seen:2022-12-07 05:37:55 UTC
Last seen:2022-12-07 08:33:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'287 x AgentTesla, 20'696 x Formbook, 12'401 x SnakeKeylogger)
ssdeep 49152:o90L3Cwdt5qXwDGhLvA3WngsmwS1eU3yKy4qfEb95TABPLdSdcm2JwY:NL3Cw/5DGhLvA5XwS1TiKy4fDT8PLYda
Threatray 2'313 similar samples on MalwareBazaar
TLSH T189C5232F1775E812D89914FB6FA705DAA8B0261D3166877363B31C3ACD6D303398B2D6
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)
dhash icon e896f04decf0d4e8 (1 x MarsStealer, 1 x RemcosRAT, 1 x XWorm)
Reporter JAMESWT_WT
Tags:exe github-com-alibaba2044 remcos RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
264
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
lib64.exe
Verdict:
Malicious activity
Analysis date:
2022-12-07 05:40:33 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7d7f9b22-be54-46ab-bee3-8e89e3537814

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/343718/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1660.25431.18941.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
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/639026bd9a505ad9423dc927/reports/e81f47fc-d181-411f-8775-20c2700fb844/overview
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/9f1abf1f-5203-4f1b-b962-cdbed5024ce4
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1129610
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
C2 URLs / IPs found in malware configuration
Encrypted powershell cmdline option found
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
Yara detected Remcos RAT
Yara Genericmalware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 762335 Sample: lib64.exe Startdate: 07/12/2022 Architecture: WINDOWS Score: 100 42 Malicious sample detected (through community Yara rule) 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 Yara detected Remcos RAT 2->46 48 6 other signatures 2->48 7 lib64.exe 1 7 2->7         started        11 libinfo.exe 4 2->11         started        13 libinfo.exe 3 2->13         started        process3 file4 34 C:\Users\user\AppData\Roaming\...\libinfo.exe, PE32 7->34 dropped 36 C:\Users\user\...\libinfo.exe:Zone.Identifier, ASCII 7->36 dropped 38 C:\Users\user\AppData\Local\...\lib64.exe.log, ASCII 7->38 dropped 50 Encrypted powershell cmdline option found 7->50 15 lib64.exe 2 7->15         started        18 powershell.exe 16 7->18         started        20 lib64.exe 7->20         started        52 Multi AV Scanner detection for dropped file 11->52 54 Machine Learning detection for dropped file 11->54 22 powershell.exe 13 11->22         started        24 libinfo.exe 11->24         started        26 powershell.exe 9 13->26         started        signatures5 process6 dnsIp7 40 206.188.197.133, 2404 DEFENSE-NETUS United States 15->40 28 conhost.exe 18->28         started        30 conhost.exe 22->30         started        32 conhost.exe 26->32         started        process8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c4ec288c3ae80a59a799b95facdccf7a1678f8d4d354d2c07019f078c2d90988/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2022-12-07 05:23:45 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ytwcrdb25afftj4zxfp2zxgppilhr6gu2nknfqdqdhyhrqwzbgea._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
31edb5c9a0590d100f941cfcb0c142abf141fba4a90c6bddb6c7fc59b4475f28
RemcosRAT
3ab2ca682019279e28525a8ff1a72e08badba1c0f3012f926bad1528b2b0944a
RemcosRAT
3c21819ed32b31c231e20b51b1f956e4160a7b8dbfe7468b096ce64b4b138007
RemcosRAT
4b3b8c9037168a82409fbe027ecf77ba5b1b9262960b07dde8e15acfb1e3a5df
RemcosRAT
9d724226a2a3c8676d4a58b64b636d9dcc178c1d40fcf321309afa14505cf285
RemcosRAT
a0a124777df35d015c84f61af9a8e4d0dba82120a30fa031b73b885a13d88214
RemcosRAT
fe800049d4ece336205fd83c50c747fc4f7f18e4cb2f2e80f37d0ec1700166d1
RemcosRAT
+ 2'303 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost persistence rat
Link:
https://tria.ge/reports/221207-gbqf8ahg77/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Remcos
Malware Config
C2 Extraction:
206.188.197.133:2404
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/cbad59ce-d337-41e3-a6f2-645757cc4682
Unpacked files
SH256 hash:
abc602b01a813a9808ff192e7d2774acc573e9dbc83e1f675e83d0ffc13b5a64
MD5 hash:
f99bc58ce6a734fe75473cdab8260d77
SHA1 hash:
c72a3051fe6c018fd4b8b4a10dacf99fc747f343
Link:
https://www.unpac.me/results/ce4b5a9a-22db-4095-9a52-34cab05c3b1e/
SH256 hash:
ddd45be8ffa2971d4f8efbf763fc1cdaf0ef276ff583939384b13c6313d9802d
MD5 hash:
8620455110b875a16cfc0304854c70e2
SHA1 hash:
497217ddf37c206f9feca7ee3de68b223ccd704c
Link:
https://www.unpac.me/results/ce4b5a9a-22db-4095-9a52-34cab05c3b1e/
SH256 hash:
8fe4df73702913920c894c04c91834562c050d8537d2da418f94eb4c545099f5
MD5 hash:
03eefc6f708363a6ad11bc3038d820b7
SHA1 hash:
06706921dc7c09820d2dd91f37a57696f29b8077
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/ce4b5a9a-22db-4095-9a52-34cab05c3b1e/
SH256 hash:
c4ec288c3ae80a59a799b95facdccf7a1678f8d4d354d2c07019f078c2d90988
MD5 hash:
547805ed81de01127783eb1800aefc84
SHA1 hash:
ae79257049ca56a315245233c29e88e55852d269
Link:
https://www.unpac.me/results/ce4b5a9a-22db-4095-9a52-34cab05c3b1e/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c4ec288c3ae8/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c4ec288c3ae80a59a799b95facdccf7a1678f8d4d354d2c07019f078c2d90988

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.

Cape
Cape
https://www.capesandbox.com/analysis/343718/

Comments