File name:

278160ca7e2cff5563e63e0722056b1484cead89f851af217b74f5f5136906f7

Full analysis: https://app.any.run/tasks/d5ce20e7-63fa-4c0c-8752-9c21f2b03617
Verdict: Malicious activity
Threats:

First identified in March 2021, PureCrypter is a .NET-based loader that employs obfuscation techniques, such as SmartAssembly, to evade detection. It has been used to distribute malware families including AgentTesla, RedLine Stealer, and SnakeKeylogger. The malware is typically delivered through phishing campaigns and malicious downloads, often masquerading as legitimate files with extensions like .mp4 or .pdf. PureCrypter utilizes encryption and compression to conceal its payloads and can inject malicious code into legitimate processes to maintain persistence on the infected system.

Analysis date: January 10, 2025, 23:01:20
OS: Windows 10 Professional (build: 19045, 64 bit)
Tags:
purecrypter
purelogs
stealer
exfiltration
Indicators:
MIME: application/vnd.microsoft.portable-executable
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows, 3 sections
MD5:

3E7BFEE4CED9BD5614FDABE88CF6BBF7

SHA1:

E33A8F9386F9BE02010165DBABBCC62116E4C819

SHA256:

278160CA7E2CFF5563E63E0722056B1484CEAD89F851AF217B74F5F5136906F7

SSDEEP:

49152:TIETiuaeE3m2bM4ZLFJPUhZaLGyKo234OMBIGlRwvlFc8olUbGgnl3epHn20EtSd:sEm1eqgQ5JPUhZa6yKo234nl0k8olUbu

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

      • 278160ca7e2cff5563e63e0722056b1484cead89f851af217b74f5f5136906f7.exe (PID: 2232)
    • Connects to the CnC server

      • InstallUtil.exe (PID: 2076)
    • PURECRYPTER has been detected (SURICATA)

      • InstallUtil.exe (PID: 2076)
    • PURELOGS has been detected (SURICATA)

      • InstallUtil.exe (PID: 2076)
    • Steals credentials from Web Browsers

      • InstallUtil.exe (PID: 2076)
    • Scans artifacts that could help determine the target

      • InstallUtil.exe (PID: 2076)
    • Actions looks like stealing of personal data

      • InstallUtil.exe (PID: 2076)
  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • 278160ca7e2cff5563e63e0722056b1484cead89f851af217b74f5f5136906f7.exe (PID: 2232)
    • Contacting a server suspected of hosting an CnC

      • InstallUtil.exe (PID: 2076)
    • Connects to unusual port

      • InstallUtil.exe (PID: 2076)
  • INFO

    • Creates files or folders in the user directory

      • 278160ca7e2cff5563e63e0722056b1484cead89f851af217b74f5f5136906f7.exe (PID: 2232)
    • Reads the computer name

      • 278160ca7e2cff5563e63e0722056b1484cead89f851af217b74f5f5136906f7.exe (PID: 2232)
      • InstallUtil.exe (PID: 2076)
    • Reads the machine GUID from the registry

      • 278160ca7e2cff5563e63e0722056b1484cead89f851af217b74f5f5136906f7.exe (PID: 2232)
      • InstallUtil.exe (PID: 2076)
    • Checks supported languages

      • 278160ca7e2cff5563e63e0722056b1484cead89f851af217b74f5f5136906f7.exe (PID: 2232)
      • InstallUtil.exe (PID: 2076)
    • Manual execution by a user

      • InstallUtil.exe (PID: 2076)
    • Reads Microsoft Office registry keys

      • InstallUtil.exe (PID: 2076)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Generic CIL Executable (.NET, Mono, etc.) (82.9)
.dll | Win32 Dynamic Link Library (generic) (7.4)
.exe | Win32 Executable (generic) (5.1)
.exe | Generic Win/DOS Executable (2.2)
.exe | DOS Executable Generic (2.2)

EXIF

EXE

AssemblyVersion: 1.0.0.0
ProductVersion: 1.0.0.0
ProductName: Hpkxtytumr
OriginalFileName: Hpkxtytumr.exe
LegalTrademarks: -
LegalCopyright: Copyright © 2023
InternalName: Hpkxtytumr.exe
FileVersion: 1.0.0.0
FileDescription: Hpkxtytumr
CompanyName: -
Comments: -
CharacterSet: Unicode
LanguageCode: Neutral
FileSubtype: -
ObjectFileType: Executable application
FileOS: Win32
FileFlags: (none)
FileFlagsMask: 0x003f
ProductVersionNumber: 1.0.0.0
FileVersionNumber: 1.0.0.0
Subsystem: Windows GUI
SubsystemVersion: 4
ImageVersion: -
OSVersion: 4
EntryPoint: 0x14e1ce
UninitializedDataSize: -
InitializedDataSize: 2048
CodeSize: 1360384
LinkerVersion: 8
PEType: PE32
ImageFileCharacteristics: Executable, 32-bit
TimeStamp: 2024:12:11 07:04:28+00:00
MachineType: Intel 386 or later, and compatibles
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
129
Monitored processes
2
Malicious processes
1
Suspicious processes
1

Behavior graph

Click at the process to see the details
start 278160ca7e2cff5563e63e0722056b1484cead89f851af217b74f5f5136906f7.exe #PURECRYPTER installutil.exe

Process information

PID
CMD
Path
Indicators
Parent process
2232"C:\Users\admin\AppData\Local\Temp\278160ca7e2cff5563e63e0722056b1484cead89f851af217b74f5f5136906f7.exe" C:\Users\admin\AppData\Local\Temp\278160ca7e2cff5563e63e0722056b1484cead89f851af217b74f5f5136906f7.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Description:
Hpkxtytumr
Exit code:
4294967295
Version:
1.0.0.0
Modules
Images
c:\users\admin\appdata\local\temp\278160ca7e2cff5563e63e0722056b1484cead89f851af217b74f5f5136906f7.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\mscoree.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
2076"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
.NET Framework installation utility
Exit code:
0
Version:
4.8.9037.0 built by: NET481REL1
Modules
Images
c:\windows\microsoft.net\framework\v4.0.30319\installutil.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\mscoree.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
Total events
1 969
Read events
1 969
Write events
0
Delete events
0

Modification events

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

Dropped files

PID
Process
Filename
Type
2232278160ca7e2cff5563e63e0722056b1484cead89f851af217b74f5f5136906f7.exeC:\Users\admin\AppData\Roaming\net.exeexecutable
MD5:3E7BFEE4CED9BD5614FDABE88CF6BBF7
SHA256:278160CA7E2CFF5563E63E0722056B1484CEAD89F851AF217B74F5F5136906F7
2232278160ca7e2cff5563e63e0722056b1484cead89f851af217b74f5f5136906f7.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\net.vbstext
MD5:9DC51859EEAFEA6B26524D4236E482CB
SHA256:B47A2BF65476D07D8EA799D28596F8202156161FED8BD694018167E65EA7CD8C
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
7
TCP/UDP connections
36
DNS requests
18
Threats
3

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
GET
200
2.16.241.19:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
whitelisted
GET
200
2.23.246.101:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
whitelisted
1176
svchost.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
unknown
whitelisted
1536
SIHClient.exe
GET
200
184.30.21.171:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl
unknown
whitelisted
5064
SearchApp.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D
unknown
whitelisted
1536
SIHClient.exe
GET
200
184.30.21.171:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl
unknown
whitelisted
4996
backgroundTaskHost.exe
GET
200
192.229.221.95:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%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
1016
svchost.exe
51.104.136.2:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
5064
SearchApp.exe
2.23.227.215:443
www.bing.com
Ooredoo Q.S.C.
QA
unknown
4712
MoUsoCoreWorker.exe
51.104.136.2:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
51.104.136.2:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted
2.16.241.19:80
crl.microsoft.com
Akamai International B.V.
DE
unknown
4
System
192.168.100.255:138
unknown
2.23.246.101:80
www.microsoft.com
Ooredoo Q.S.C.
QA
unknown
2076
InstallUtil.exe
38.255.43.136:2828
COGENT-174
US
unknown
5064
SearchApp.exe
2.23.227.208:443
www.bing.com
Ooredoo Q.S.C.
QA
unknown
1176
svchost.exe
20.190.159.23:443
login.live.com
MICROSOFT-CORP-MSN-AS-BLOCK
IE
whitelisted

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 51.104.136.2
  • 40.127.240.158
unknown
www.bing.com
  • 2.23.227.215
  • 2.23.227.208
unknown
google.com
  • 142.250.186.142
unknown
crl.microsoft.com
  • 2.16.241.19
  • 2.16.241.12
unknown
www.microsoft.com
  • 2.23.246.101
  • 184.30.21.171
unknown
login.live.com
  • 20.190.159.23
  • 20.190.159.68
  • 20.190.159.4
  • 20.190.159.75
  • 20.190.159.73
  • 40.126.31.67
  • 40.126.31.71
  • 40.126.31.69
unknown
ocsp.digicert.com
  • 192.229.221.95
unknown
go.microsoft.com
  • 2.23.242.9
unknown
slscr.update.microsoft.com
  • 172.202.163.200
unknown
fe3cr.delivery.mp.microsoft.com
  • 13.85.23.206
unknown

Threats

PID
Process
Class
Message
A Network Trojan was detected
LOADER [ANY.RUN] PureLogs Download Attempt (LOAD)
A Network Trojan was detected
STEALER [ANY.RUN] PureLogs Stealer Exfiltration
1 ETPRO signatures available at the full report
No debug info