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File name:

calc.exe

Full analysis: https://app.any.run/tasks/a88758dd-c67d-474f-9ae5-5911899119e5
Verdict: Malicious activity
Analysis date: April 23, 2019, 14:50:55
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386, for MS Windows
MD5:

3DB905BAEC59FE849D1EE4226C75B81B

SHA1:

553447C9FCC445170B7878F059B3851DB3AEDF9B

SHA256:

4535F1CD7C2FEA55AEA3B352DB5C3C98370BCF3492AAE5A76015185B7B905145

SSDEEP:

1536:h3d66NC1fy7yEy/5+fX6hDVUdbmARMiMtY7JSvbAgL4HhqlBsWW1N69liBKwAyt:Tw+CIaDWKAeI7QbLL4Hhn71ugB5N

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

    • Uses SVCHOST.EXE for hidden code execution

      • azplsot.exe (PID: 3588)

    • Application was dropped or rewritten from another process

      • azplsot.exe (PID: 3588)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • calc.exe (PID: 1476)
      • cmd.exe (PID: 3844)

    • Starts CMD.EXE for commands execution

      • calc.exe (PID: 1476)

    • Uses NETSH.EXE for network configuration

      • calc.exe (PID: 1476)

    • Starts SC.EXE for service management

      • calc.exe (PID: 1476)

    • Creates or modifies windows services

      • svchost.exe (PID: 3380)

  • 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

.dll | Win32 Dynamic Link Library (generic) (38.2)
.exe | Win32 Executable (generic) (26.2)
.exe | Win16/32 Executable Delphi generic (12)
.exe | Generic Win/DOS Executable (11.6)
.exe | DOS Executable Generic (11.6)

EXIF

EXE

Subsystem: Windows GUI
SubsystemVersion: 5.1
ImageVersion: -
OSVersion: 5.1
EntryPoint: 0x1000
UninitializedDataSize: -
InitializedDataSize: 12800
CodeSize: 95744
LinkerVersion: 7
PEType: PE32
TimeStamp: 2014:09:18 01:06:57+02:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 17-Sep-2014 23:06:57
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: 5
Time date stamp: 17-Sep-2014 23:06:57
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_RELOCS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00001000
0x00017472
0x00017600
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
7.69358
idata
0x00019000
0x00000360
0x00000400
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.22631
.ldata
0x0001A000
0x000006CC
0x00000800
IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0.551507
.rsrc
0x0001B000
0x00001680
0x00001800
IMAGE_SCN_MEM_READ
6.80913
.rlc
0x0001D000
0x00000CAC
0x00000E00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
6.54858

Resources

Title
Entropy
Size
Codepage
Language
Type
1
7.08943
768
UNKNOWN
English - United States
RT_RCDATA

Imports

advapi32.dll
authz.DLL
kernel32.dll
No data.
screenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
51
Monitored processes
11
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
start calc.exe wusa.exe no specs wusa.exe cmd.exe cmd.exe sc.exe sc.exe sc.exe azplsot.exe no specs svchost.exe netsh.exe

Process information

PID
CMD
Path
Indicators
Parent process
1476"C:\Users\admin\AppData\Local\Temp\calc.exe" C:\Users\admin\AppData\Local\Temp\calc.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
964"C:\Windows\System32\wusa.exe" C:\Windows\System32\wusa.exe—calc.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Update Standalone Installer
Exit code:
3221226540
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
1160"C:\Windows\System32\wusa.exe" C:\Windows\System32\wusa.exe
calc.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Windows Update Standalone Installer
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
2432cmd /C mkdir C:\Windows\system32\arunlsjt\C:\Windows\system32\cmd.exe
calc.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Windows Command Processor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
3844cmd /C move /Y "C:\Users\admin\AppData\Local\Temp\azplsot.exe" C:\Windows\system32\arunlsjt\C:\Windows\system32\cmd.exe
calc.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Windows Command Processor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
1492sc create arunlsjt binPath= "C:\Windows\system32\arunlsjt\azplsot.exe /d\"C:\Users\admin\AppData\Local\Temp\calc.exe\"" type= own start= auto DisplayName= "wifi support"C:\Windows\system32\sc.exe
calc.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
A tool to aid in developing services for WindowsNT
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
3252sc description arunlsjt "wifi internet conection"C:\Windows\system32\sc.exe
calc.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
A tool to aid in developing services for WindowsNT
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
3748sc start arunlsjtC:\Windows\system32\sc.exe
calc.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
A tool to aid in developing services for WindowsNT
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
3588C:\Windows\system32\arunlsjt\azplsot.exe /d"C:\Users\admin\AppData\Local\Temp\calc.exe"C:\Windows\system32\arunlsjt\azplsot.exe—services.exe
User:
SYSTEM
Integrity Level:
SYSTEM
Exit code:
0
3380svchost.exeC:\Windows\system32\svchost.exe
azplsot.exe
User:
SYSTEM
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Host Process for Windows Services
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Total events
138
Read events
75
Write events
0
Delete events
0

Modification events

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

Dropped files

PID
Process
Filename
Type
1476calc.exeC:\Users\admin\AppData\Local\Temp\azplsot.exeexecutable
MD5:93D8F95FA25633C9D22EE59BE11AFE7F
SHA256:8FFA0FCDEEA3601C40E053B4F85B3155AABE2C2618FD9FE665F2C10FA1BBABE4
3844cmd.exeC:\Windows\system32\arunlsjt\azplsot.exeexecutable
MD5:93D8F95FA25633C9D22EE59BE11AFE7F
SHA256:8FFA0FCDEEA3601C40E053B4F85B3155AABE2C2618FD9FE665F2C10FA1BBABE4
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
5
DNS requests
7
Threats
0

HTTP requests

No HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
3380
svchost.exe
43.231.4.7:443
—
Gigabit Hosting Sdn Bhd
MY
malicious
3380
svchost.exe
40.76.4.15:80
microsoft.com
Microsoft Corporation
US
whitelisted
3380
svchost.exe
104.47.54.36:25
microsoft-com.mail.protection.outlook.com
Microsoft Corporation
US
unknown
3380
svchost.exe
74.125.131.26:25
alt1.aspmx.l.google.com
Google Inc.
US
whitelisted
3380
svchost.exe
98.137.159.26:25
mta5.am0.yahoodns.net
Yahoo
US
unknown

DNS requests

Domain
IP
Reputation
microsoft.com
  • 40.76.4.15
  • 40.112.72.205
  • 40.113.200.201
  • 104.215.148.63
  • 13.77.161.179
whitelisted
microsoft-com.mail.protection.outlook.com
  • 104.47.54.36
whitelisted
yahoo.com
  • —
whitelisted
mta5.am0.yahoodns.net
  • 98.137.159.26
  • 74.6.137.63
  • 67.195.229.59
  • 98.137.159.28
  • 98.137.159.25
  • 67.195.228.141
  • 74.6.137.64
  • 67.195.229.58
unknown
google.com
  • —
whitelisted
alt1.aspmx.l.google.com
  • 74.125.131.26
whitelisted

Threats

No threats detected
No debug info
Interactive malware hunting service ANY.RUN
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Reports
calc.exe