File name:

cstealer.exe

Full analysis: https://app.any.run/tasks/ff0e1ff1-c503-49df-a6b3-b9b3ab0d3fa8
Verdict: Malicious activity
Threats:

Stealers are a group of malicious software that are intended for gaining unauthorized access to users’ information and transferring it to the attacker. The stealer malware category includes various types of programs that focus on their particular kind of data, including files, passwords, and cryptocurrency. Stealers are capable of spying on their targets by recording their keystrokes and taking screenshots. This type of malware is primarily distributed as part of phishing campaigns.

Malware Trends Tracker     >>>
Analysis date: September 21, 2024, 13:45:37
OS: Windows 10 Professional (build: 19045, 64 bit)
Tags:
pyinstaller
ims-api
generic
discordgrabber
stealer
waspstealer
python
Indicators:
MIME: application/x-dosexec
File info: PE32+ executable (GUI) x86-64, for MS Windows
MD5:

02AC9146D7D51B7032A4891DF606D82F

SHA1:

EB612A9A5B4D0DC852EB064B2D6D9FDEBDAD57F7

SHA256:

7EAA54CA79015F31664678C19E567E57219A4CCA237242CD9DA681B74247D498

SSDEEP:

98304:v6CMJBrswokcaCJr/VzkvddwCXkFqdz3aC3bww/Al+Biyz6oqV2kTpcGc4tP2bX+:MYQuyVqbrcC60OTv

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

  • MALICIOUS

    • WASPSTEALER has been detected (YARA)

      • cstealer.exe (PID: 2524)

    • DISCORDGRABBER has been detected (YARA)

      • cstealer.exe (PID: 2524)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • cstealer.exe (PID: 4476)

    • Loads Python modules

      • cstealer.exe (PID: 2524)

    • Process drops legitimate windows executable

      • cstealer.exe (PID: 4476)

    • Process drops python dynamic module

      • cstealer.exe (PID: 4476)

    • Application launched itself

      • cstealer.exe (PID: 4476)

    • The process drops C-runtime libraries

      • cstealer.exe (PID: 4476)

    • Possible usage of Discord/Telegram API has been detected (YARA)

      • cstealer.exe (PID: 2524)

  • INFO

    • Checks supported languages

      • cstealer.exe (PID: 4476)
      • cstealer.exe (PID: 2524)

    • Create files in a temporary directory

      • cstealer.exe (PID: 4476)

    • Reads the computer name

      • cstealer.exe (PID: 4476)
      • cstealer.exe (PID: 2524)

    • Checks proxy server information

      • cstealer.exe (PID: 2524)

    • PyInstaller has been detected (YARA)

      • cstealer.exe (PID: 4476)
      • cstealer.exe (PID: 2524)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win64 Executable (generic) (87.3)
.exe | Generic Win/DOS Executable (6.3)
.exe | DOS Executable Generic (6.3)

EXIF

EXE

MachineType: AMD AMD64
TimeStamp: 2024:09:21 02:35:32+00:00
ImageFileCharacteristics: Executable, Large address aware
PEType: PE32+
LinkerVersion: 14.4
CodeSize: 172032
InitializedDataSize: 154624
UninitializedDataSize: -
EntryPoint: 0xcdb0
OSVersion: 6
ImageVersion: -
SubsystemVersion: 6
Subsystem: Windows GUI
No data.
screenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
123
Monitored processes
2
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
start THREAT cstealer.exe THREAT cstealer.exe

Process information

PID
CMD
Path
Indicators
Parent process
2524"C:\Users\admin\Desktop\cstealer.exe" C:\Users\admin\Desktop\cstealer.exe
cstealer.exe
User:
admin
Integrity Level:
MEDIUM
Modules
Images
c:\users\admin\desktop\cstealer.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\user32.dll
c:\windows\system32\win32u.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\gdi32full.dll
c:\windows\system32\msvcp_win.dll
4476"C:\Users\admin\Desktop\cstealer.exe" C:\Users\admin\Desktop\cstealer.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Modules
Images
c:\users\admin\desktop\cstealer.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\user32.dll
c:\windows\system32\win32u.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\gdi32full.dll
c:\windows\system32\msvcp_win.dll
Total events
403
Read events
403
Write events
0
Delete events
0

Modification events

No data
Executable files
67
Suspicious files
1
Text files
1
Unknown types
0

Dropped files

PID
Process
Filename
Type
4476cstealer.exeC:\Users\admin\AppData\Local\Temp\_MEI44762\Crypto\Cipher\_raw_blowfish.pydexecutable
MD5:45616B10ABE82D5BB18B9C3AB446E113
SHA256:F348DB1843B8F38A23AEE09DD52FB50D3771361C0D529C9C9E142A251CC1D1EC
4476cstealer.exeC:\Users\admin\AppData\Local\Temp\_MEI44762\Crypto\Cipher\_raw_cbc.pydexecutable
MD5:20708935FDD89B3EDDEEA27D4D0EA52A
SHA256:11DD1B49F70DB23617E84E08E709D4A9C86759D911A24EBDDFB91C414CC7F375
4476cstealer.exeC:\Users\admin\AppData\Local\Temp\_MEI44762\Crypto\Cipher\_chacha20.pydexecutable
MD5:CB5238E2D4149636377F9A1E2AF6DC57
SHA256:A8D3BB9CD6A78EBDB4F18693E68B659080D08CB537F9630D279EC9F26772EFC7
4476cstealer.exeC:\Users\admin\AppData\Local\Temp\_MEI44762\Crypto\Cipher\_raw_aes.pydexecutable
MD5:F751792DF10CDEED391D361E82DAF596
SHA256:9524D1DADCD2F2B0190C1B8EDE8E5199706F3D6C19D3FB005809ED4FEBF3E8B5
4476cstealer.exeC:\Users\admin\AppData\Local\Temp\_MEI44762\Crypto\Cipher\_raw_cast.pydexecutable
MD5:CF3C2F35C37AA066FA06113839C8A857
SHA256:1261783F8881642C3466B96FA5879A492EA9E0DAB41284ED9E4A82E8BCF00C80
4476cstealer.exeC:\Users\admin\AppData\Local\Temp\_MEI44762\Crypto\Cipher\_raw_aesni.pydexecutable
MD5:BBEA5FFAE18BF0B5679D5C5BCD762D5A
SHA256:1F4288A098DA3AAC2ADD54E83C8C9F2041EC895263F20576417A92E1E5B421C1
4476cstealer.exeC:\Users\admin\AppData\Local\Temp\_MEI44762\Crypto\Cipher\_raw_des.pydexecutable
MD5:0B538205388FDD99A043EE3AFAA074E4
SHA256:C4769D3E6EB2A2FECB5DEC602D45D3E785C63BB96297268E3ED069CC4A019B1A
4476cstealer.exeC:\Users\admin\AppData\Local\Temp\_MEI44762\Crypto\Cipher\_raw_ctr.pydexecutable
MD5:C6B20332B4814799E643BADFFD8DF2CD
SHA256:61C7A532E108F67874EF2E17244358DF19158F6142680F5B21032BA4889AC5D8
4476cstealer.exeC:\Users\admin\AppData\Local\Temp\_MEI44762\Crypto\Cipher\_raw_cfb.pydexecutable
MD5:43BBE5D04460BD5847000804234321A6
SHA256:FAA41385D0DB8D4EE2EE74EE540BC879CF2E884BEE87655FF3C89C8C517EED45
4476cstealer.exeC:\Users\admin\AppData\Local\Temp\_MEI44762\Crypto\Cipher\_raw_eksblowfish.pydexecutable
MD5:76F88D89643B0E622263AF676A65A8B4
SHA256:605C86145B3018A5E751C6D61FD0F85CF4A9EBF2AD1F3009A4E68CF9F1A63E49
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
3
TCP/UDP connections
20
DNS requests
7
Threats
2

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
2120
MoUsoCoreWorker.exe
GET
200
184.30.21.171:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
6924
svchost.exe
GET
200
184.30.21.171:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
4200
RUXIMICS.exe
GET
200
184.30.21.171:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
—
—
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
3888
svchost.exe
239.255.255.250:1900
—
—
—
whitelisted
4
System
192.168.100.255:137
—
—
—
whitelisted
6924
svchost.exe
51.124.78.146:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
4200
RUXIMICS.exe
51.124.78.146:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
2120
MoUsoCoreWorker.exe
51.124.78.146:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
4
System
192.168.100.255:138
—
—
—
whitelisted
—
—
20.189.173.11:443
—
MICROSOFT-CORP-MSN-AS-BLOCK
US
unknown
2524
cstealer.exe
172.67.75.40:443
rentry.co
CLOUDFLARENET
US
suspicious
2120
MoUsoCoreWorker.exe
184.30.21.171:80
www.microsoft.com
AKAMAI-AS
DE
whitelisted
6924
svchost.exe
184.30.21.171:80
www.microsoft.com
AKAMAI-AS
DE
whitelisted

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 51.124.78.146
  • 4.231.128.59
  • 40.127.240.158
  • 20.73.194.208
whitelisted
google.com
  • 142.250.186.78
whitelisted
rentry.co
  • 172.67.75.40
  • 104.26.2.16
  • 104.26.3.16
unknown
www.microsoft.com
  • 184.30.21.171
whitelisted

Threats

PID
Process
Class
Message
2256
svchost.exe
Misc activity
ET INFO Pastebin Service Domain in DNS Lookup (rentry .co)
2524
cstealer.exe
Misc activity
ET INFO Observed Pastebin Service Domain (rentry .co in TLS SNI)
No debug info
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Reports
cstealer.exe