MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c67e95d7141cdb09c9fa41c4cf95c0ba90ae6510320f981d8940fe0a3b4b0e17. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments 1
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SHA256 hash: c67e95d7141cdb09c9fa41c4cf95c0ba90ae6510320f981d8940fe0a3b4b0e17
SHA3-384 hash: 48c3027d8761bee980e368477a60945a1d06fd910590222d431e46dcc9195e5753aae58245a4ee8923f9b7f84bc7a240
SHA1 hash: b077edd5f34c92880757e2b3f6c8532c8fe55162
MD5 hash: 28e153fa2793547ceffd0b30e4c542a0
humanhash: cardinal-music-whiskey-glucose
File name:28e153fa2793547ceffd0b30e4c542a0
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:2'289'664 bytes
First seen:2022-08-22 19:40:51 UTC
Last seen:2022-08-22 21:00:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 49152:wmMM/hmzeZcXd1MZ37DtlHCapGUha/MWs:RMM/hmK+Xd+B7Jkyh4s
TLSH T1D2B5D0A2F145BF5AEFE32B758C5D0C1A0556BF3400CBA87C12C1B6A14F72AB299253F5
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 9624c6c1e1ccc9e1 (1 x RemcosRAT)
Reporter zbetcheckin
Tags:32 exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
307
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
http://198.23.154.169/278/vbc.exe
Verdict:
Suspicious activity
Analysis date:
2022-08-22 19:22:25 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f44bc2c3-dba3-4286-a89d-4f501dba86cc

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/300341/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.22176.4707.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
Creating a file in the %AppData% subdirectories
Creating a file
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6303dc5acdc72e865b8874f8/reports/076e0bd6-004d-409e-9434-95a71d5c79d6/overview
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.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/cda46477-8aeb-46e5-a402-035168c6d5cb
Result
Threat name:
AsyncRAT, Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1055846
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
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)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected AsyncRAT
Yara detected Generic Downloader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 688363 Sample: Yewm8FYRHk Startdate: 22/08/2022 Architecture: WINDOWS Score: 100 47 Malicious sample detected (through community Yara rule) 2->47 49 Yara detected Remcos RAT 2->49 51 Yara detected AsyncRAT 2->51 53 7 other signatures 2->53 7 Yewm8FYRHk.exe 1 7 2->7         started        11 Xozta.exe 4 2->11         started        13 Xozta.exe 3 2->13         started        process3 file4 35 C:\Users\user\AppData\Roaming\...\Xozta.exe, PE32 7->35 dropped 37 C:\Users\user\...\Xozta.exe:Zone.Identifier, ASCII 7->37 dropped 39 C:\Users\user\AppData\...\Yewm8FYRHk.exe.log, ASCII 7->39 dropped 55 Encrypted powershell cmdline option found 7->55 57 Writes to foreign memory regions 7->57 59 Injects a PE file into a foreign processes 7->59 15 InstallUtil.exe 2 16 7->15         started        19 powershell.exe 18 7->19         started        61 Machine Learning detection for dropped file 11->61 21 powershell.exe 11->21         started        23 InstallUtil.exe 11->23         started        25 powershell.exe 13->25         started        27 InstallUtil.exe 13->27         started        signatures5 process6 dnsIp7 41 sfcarbotexpl.ddns.net 103.253.26.242, 44851, 49717 READYSERVER-SGREADYSERVERPTELTDSG Singapore 15->41 43 geoplugin.net 178.237.33.50, 49718, 80 ATOM86-ASATOM86NL Netherlands 15->43 45 Installs a global keyboard hook 15->45 29 conhost.exe 19->29         started        31 conhost.exe 21->31         started        33 conhost.exe 25->33         started        signatures8 process9
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c67e95d7141cdb09c9fa41c4cf95c0ba90ae6510320f981d8940fe0a3b4b0e17/
Threat name:
ByteCode-MSIL.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2022-08-22 19:44:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yz7jlvyudtnqtsp2ihcm7foaxkik4ziqgihzqhmjid7auo2lbylq._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:snrbys persistence rat
Link:
https://tria.ge/reports/220822-yd3m1acddp/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
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:
sfcarbotexpl.ddns.net:44851
Unpacked files
SH256 hash:
c67e95d7141cdb09c9fa41c4cf95c0ba90ae6510320f981d8940fe0a3b4b0e17
MD5 hash:
28e153fa2793547ceffd0b30e4c542a0
SHA1 hash:
b077edd5f34c92880757e2b3f6c8532c8fe55162
Link:
https://www.unpac.me/results/a51daf87-a1bb-467c-8feb-8a7041f23cae/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
Link:
https://yomi.yoroi.company/submissions/c67e95d7141cdb09c9fa41c4cf95c0ba90ae6510320f981d8940fe0a3b4b0e17

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:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
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 c67e95d7141cdb09c9fa41c4cf95c0ba90ae6510320f981d8940fe0a3b4b0e17

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2275683/
Cape
Cape
https://www.capesandbox.com/analysis/300341/

Comments


Avatar
zbet commented on 2022-08-22 19:40:55 UTC

url : hxxp://198.23.154.169/278/vbc.exe