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File name:

pskas.dll

Full analysis: https://app.any.run/tasks/93b899ed-e62d-47c5-b284-d2c8f156ad6e
Verdict: Malicious activity
Analysis date: February 19, 2019, 10:28:36
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
MIME: application/x-dosexec
File info: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
MD5:

992C07082B195A0B39A951D0FDB7C811

SHA1:

40AE8A63B72DBFECFC22DD407FA5B5D19292C3C3

SHA256:

379024104CEF7485D9A0BEFF9A5B9BFFE224F7CA789BF693EE6A1C818715CE78

SSDEEP:

48:6XivZCCaVda2fZvZpCUn5swT+YtG/fFn0yH:RvZCCgZjsNp0y

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

    • Loads dropped or rewritten executable

      • explorer.exe (PID: 116)
      • svchost.exe (PID: 844)

  • SUSPICIOUS

    • Uses RUNDLL32.EXE to load library

      • explorer.exe (PID: 116)

  • INFO

    • Loads main object executable

      • rundll32.exe (PID: 2940)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win32 Executable (generic) (52.9)
.exe | Generic Win/DOS Executable (23.5)
.exe | DOS Executable Generic (23.5)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2018:03:15 01:49:23+01:00
PEType: PE32
LinkerVersion: 5.12
CodeSize: 1024
InitializedDataSize: 2560
UninitializedDataSize: -
EntryPoint: 0x1000
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 15-Mar-2018 00:49:23

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: 0x000000C0

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 4
Time date stamp: 15-Mar-2018 00:49:23
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_DLL
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_LINE_NUMS_STRIPPED
  • IMAGE_FILE_LOCAL_SYMS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00001000
0x000003A1
0x00000400
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
5.54836
.rdata
0x00002000
0x000005A5
0x00000600
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.98499
.data
0x00003000
0x00000044
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0.942162
.reloc
0x00004000
0x00000028
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.231158

Exports

Title
Ordinal
Address
AS_FreeAnalysisSystem
1
0x00001078
AS_GetConfigString
2
0x0000109C
AS_InitializeAnalysisSystem
3
0x00001102
AS_SetConfigString
4
0x000010DE
AS_VFClose
5
0x0000105A
AS_VFDelete
6
0x000010D2
AS_VFFilelength
7
0x000010E4
AS_VFGetInfoInt
8
0x00001090
AS_VFGetInfoString
9
0x00001108
AS_VFGetLastError
10
0x000010D8
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
30
Monitored processes
3
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
start rundll32.exe no specs svchost.exe explorer.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
2940"C:\Windows\System32\rundll32.exe" "C:\Users\admin\Desktop\pskas.dll.exe", AS_FreeAnalysisSystemC:\Windows\System32\rundll32.exe—explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows host process (Rundll32)
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
844C:\Windows\system32\svchost.exe -k netsvcsC:\Windows\System32\svchost.exe
services.exe
User:
SYSTEM
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Host Process for Windows Services
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
116C:\Windows\Explorer.EXEC:\Windows\explorer.exe——
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Explorer
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Total events
1 024
Read events
942
Write events
82
Delete events
0

Modification events

(PID) Process:(116) explorer.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(116) explorer.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E
Operation:writeName:@C:\Windows\System32\display.dll,-4
Value:
S&creen resolution
(PID) Process:(116) explorer.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E
Operation:writeName:@C:\Program Files\Common Files\System\wab32res.dll,-4602
Value:
Contact file
(PID) Process:(116) explorer.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E
Operation:writeName:@C:\Program Files\Windows Sidebar\sidebar.exe,-11100
Value:
&Gadgets
(PID) Process:(116) explorer.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E
Operation:writeName:@C:\Windows\system32\themecpl.dll,-10
Value:
Pe&rsonalize
(PID) Process:(116) explorer.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E
Operation:writeName:@"C:\Program Files\Windows Journal\Journal.exe",-3072
Value:
Journal Document
(PID) Process:(116) explorer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Discardable\PostSetup\ShellNew
Operation:writeName:Classes
Value:
.accdb
(PID) Process:(116) explorer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Discardable\PostSetup\ShellNew
Operation:writeName:~reserved~
Value:
0800000000000600
(PID) Process:(116) explorer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\Shell\BagMRU
Operation:writeName:NodeSlots
Value:
02
(PID) Process:(116) explorer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\Shell\BagMRU
Operation:writeName:MRUListEx
Value:
FFFFFFFF
Executable files
0
Suspicious files
0
Text files
0
Unknown types
1

Dropped files

PID
Process
Filename
Type
844svchost.exeC:\Windows\appcompat\programs\RecentFileCache.bcftxt
MD5:F21900C7A25F863C30D1D846EA91370B
SHA256:19E89AC099570546B4FB964A14D5E70B72AB17B892739FFE1A6111AD8404641F
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
0
DNS requests
0
Threats
0

HTTP requests

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

Connections

No data

DNS requests

No data

Threats

No threats detected
No debug info
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pskas.dll