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File name:

zzzz.exe

Full analysis: https://app.any.run/tasks/b2fbb65f-47a3-4a91-9186-8570d9ab7363
Verdict: Malicious activity
Threats:

Agent Tesla is spyware that collects information about the actions of its victims by recording keystrokes and user interactions. It is falsely marketed as a legitimate software on the dedicated website where this malware is sold.

Analysis date: December 06, 2019, 17:26:06
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
keylogger
agenttesla
stealer
trojan
rat
evasion
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

D195C9717CE37E70843EF98E0A748C14

SHA1:

F876C22354DE748DD0517394543BC7F67D9AB3B3

SHA256:

89BDAF6AB573C1FF6BB46E1E9F2FA707EA7454A5069EFDA6A412B97E70B7EFF2

SSDEEP:

24576:v46sDhRswQq32GtmP6sH0Lre0H06n6YzaaAcQQdq9sFtdVqxZSuLWkryH1DfEnr7:v46sDzspq32GtmP6sHyreQ06n6maaAca

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

    • Writes to a start menu file

      • zzzz.exe (PID: 2620)
    • Starts Visual C# compiler

      • zzzz.exe (PID: 2620)
    • Changes the autorun value in the registry

      • RegAsm.exe (PID: 616)
    • Application was dropped or rewritten from another process

      • RegAsm.exe (PID: 616)
    • AGENTTESLA was detected

      • RegAsm.exe (PID: 616)
    • Actions looks like stealing of personal data

      • RegAsm.exe (PID: 616)
  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • zzzz.exe (PID: 2620)
      • RegAsm.exe (PID: 616)
    • Reads Windows Product ID

      • RegAsm.exe (PID: 616)
    • Creates files in the user directory

      • zzzz.exe (PID: 2620)
      • RegAsm.exe (PID: 616)
    • Checks for external IP

      • RegAsm.exe (PID: 616)
    • Reads Environment values

      • RegAsm.exe (PID: 616)
  • INFO

    No info indicators.
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.) (62)
.exe | Win64 Executable (generic) (23.3)
.dll | Win32 Dynamic Link Library (generic) (5.5)
.exe | Win32 Executable (generic) (3.8)
.exe | Win16/32 Executable Delphi generic (1.7)

EXIF

EXE

Subsystem: Windows GUI
SubsystemVersion: 4
ImageVersion: -
OSVersion: 4
EntryPoint: 0x154c6e
UninitializedDataSize: -
InitializedDataSize: 44032
CodeSize: 1388032
LinkerVersion: 8
PEType: PE32
TimeStamp: 2019:10:20 07:47:09+02:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 20-Oct-2019 05:47:09
Detected languages:
  • English - United States

DOS Header

Magic number: MZ
Bytes on last page of file: 0x0090
Pages in file: 0x0003
Relocations: 0x0000
Size of header: 0x0004
Min extra paragraphs: 0x0000
Max extra paragraphs: 0xFFFF
Initial SS value: 0x0000
Initial SP value: 0x00B8
Checksum: 0x0000
Initial IP value: 0x0000
Initial CS value: 0x0000
Overlay number: 0x0000
OEM identifier: 0x0000
OEM information: 0x0000
Address of NE header: 0x00000080

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 3
Time date stamp: 20-Oct-2019 05:47:09
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00002000
0x00152C74
0x00152E00
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
5.27024
.rsrc
0x00156000
0x0000A976
0x0000AA00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
6.73844
.reloc
0x00162000
0x0000000C
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.10191

Resources

Title
Entropy
Size
Codepage
Language
Type
0
2.90294
146
Latin 1 / Western European
English - United States
RT_GROUP_ICON
1
2.68011
1640
Latin 1 / Western European
English - United States
RT_ICON
2
2.8656
744
Latin 1 / Western European
English - United States
RT_ICON
3
2.71418
296
Latin 1 / Western European
English - United States
RT_ICON
4
4.74253
3752
Latin 1 / Western European
English - United States
RT_ICON
5
5.6468
2216
Latin 1 / Western European
English - United States
RT_ICON
6
3.04749
1384
Latin 1 / Western European
English - United States
RT_ICON
7
7.92358
17580
Latin 1 / Western European
English - United States
RT_ICON
8
5.38069
9640
Latin 1 / Western European
English - United States
RT_ICON
9
5.45561
4264
Latin 1 / Western European
English - United States
RT_ICON

Imports

mscoree.dll
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
39
Monitored processes
4
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
start zzzz.exe csc.exe no specs cvtres.exe no specs #AGENTTESLA regasm.exe

Process information

PID
CMD
Path
Indicators
Parent process
2620"C:\Users\admin\AppData\Local\Temp\zzzz.exe" C:\Users\admin\AppData\Local\Temp\zzzz.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
2528"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\admin\AppData\Local\Temp\vn0juvhk.cmdline"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exezzzz.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Visual C# Command Line Compiler
Exit code:
0
Version:
4.7.3062.0 built by: NET472REL1
3044C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\admin\AppData\Local\Temp\RESA998.tmp" "c:\Users\admin\AppData\Local\Temp\CSC4269D00F7FB41E5B768E0F4B3A5F2B.TMP"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.execsc.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft® Resource File To COFF Object Conversion Utility
Exit code:
0
Version:
12.00.52519.0 built by: VSWINSERVICING
616"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
zzzz.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft .NET Assembly Registration Utility
Version:
4.7.3062.0 built by: NET472REL1
Total events
78
Read events
65
Write events
13
Delete events
0

Modification events

(PID) Process:(616) RegAsm.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:MyApp
Value:
C:\Users\admin\AppData\Roaming\MyApp\MyApp.exe
(PID) Process:(616) RegAsm.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32
Operation:writeName:EnableFileTracing
Value:
0
(PID) Process:(616) RegAsm.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32
Operation:writeName:EnableConsoleTracing
Value:
0
(PID) Process:(616) RegAsm.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32
Operation:writeName:FileTracingMask
Value:
4294901760
(PID) Process:(616) RegAsm.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32
Operation:writeName:ConsoleTracingMask
Value:
4294901760
(PID) Process:(616) RegAsm.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32
Operation:writeName:MaxFileSize
Value:
1048576
(PID) Process:(616) RegAsm.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASAPI32
Operation:writeName:FileDirectory
Value:
%windir%\tracing
(PID) Process:(616) RegAsm.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASMANCS
Operation:writeName:EnableFileTracing
Value:
0
(PID) Process:(616) RegAsm.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASMANCS
Operation:writeName:EnableConsoleTracing
Value:
0
(PID) Process:(616) RegAsm.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\RegAsm_RASMANCS
Operation:writeName:FileTracingMask
Value:
4294901760
Executable files
3
Suspicious files
0
Text files
1
Unknown types
1

Dropped files

PID
Process
Filename
Type
2620zzzz.exeC:\Users\admin\AppData\Local\Temp\vn0juvhk.0.cs
MD5:
SHA256:
2620zzzz.exeC:\Users\admin\AppData\Local\Temp\vn0juvhk.cmdline
MD5:
SHA256:
2528csc.exeC:\Users\admin\AppData\Local\Temp\CSC4269D00F7FB41E5B768E0F4B3A5F2B.TMP
MD5:
SHA256:
2528csc.exeC:\Users\admin\AppData\Local\Temp\vn0juvhk.dll
MD5:
SHA256:
3044cvtres.exeC:\Users\admin\AppData\Local\Temp\RESA998.tmp
MD5:
SHA256:
2528csc.exeC:\Users\admin\AppData\Local\Temp\vn0juvhk.out
MD5:
SHA256:
616RegAsm.exeC:\Users\admin\AppData\Local\Temp\637112500033252500_fbea91d5-1aea-469b-aba5-9519e49c296a.dbsqlite
MD5:0B3C43342CE2A99318AA0FE9E531C57B
SHA256:0CCB4915E00390685621DA3D75EBFD5EDADC94155A79C66415A7F4E9763D71B8
2620zzzz.exeC:\Users\admin\DocumentsEnvironmentBlocktext
MD5:6BEC02065998D01DFCA659EF79203382
SHA256:BC951D6651EEEAFECECED430E946FE91B21073FEE20AA2C3DED681C7D9E1D6E6
2620zzzz.exeC:\Users\admin\firefox.exeexecutable
MD5:D195C9717CE37E70843EF98E0A748C14
SHA256:89BDAF6AB573C1FF6BB46E1E9F2FA707EA7454A5069EFDA6A412B97E70B7EFF2
616RegAsm.exeC:\Users\admin\AppData\Roaming\MyApp\MyApp.exeexecutable
MD5:B58B926C3574D28D5B7FDD2CA3EC30D5
SHA256:6E70B56D748C4CCAB13CC8A055D3795EA0DD95FE3B70568D7D3AC0C6621140A3
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
2
DNS requests
2
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
616
RegAsm.exe
GET
200
34.196.181.158:80
http://checkip.amazonaws.com/
US
text
12 b
shared
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
34.196.181.158:80
checkip.amazonaws.com
Amazon.com, Inc.
US
shared
616
RegAsm.exe
192.185.187.33:587
Mail.garlascontrol.com
CyrusOne LLC
US
malicious

DNS requests

Domain
IP
Reputation
checkip.amazonaws.com
  • 34.196.181.158
  • 3.224.145.145
  • 34.236.80.17
  • 34.224.0.116
  • 18.211.58.73
  • 18.213.79.189
  • 52.44.169.135
  • 52.55.255.113
shared
Mail.garlascontrol.com
  • 192.185.187.33
unknown

Threats

PID
Process
Class
Message
616
RegAsm.exe
A Network Trojan was detected
MALWARE [PTsecurity] AgentTesla IP Check
616
RegAsm.exe
Generic Protocol Command Decode
SURICATA Applayer Detect protocol only one direction
2 ETPRO signatures available at the full report
No debug info