File name:

jskw.pif

Full analysis: https://app.any.run/tasks/f7798526-7b26-4b14-bfc3-5574fc7cd910
Verdict: Malicious activity
Threats:

A loader is malicious software that infiltrates devices to deliver malicious payloads. This malware is capable of infecting victims’ computers, analyzing their system information, and installing other types of threats, such as trojans or stealers. Criminals usually deliver loaders through phishing emails and links by relying on social engineering to trick users into downloading and running their executables. Loaders employ advanced evasion and persistence tactics to avoid detection.

Analysis date: June 24, 2019, 11:10:00
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
trojan
loader
smoke
Indicators:
MIME: application/x-dosexec
File info: MS-DOS executable, MZ for MS-DOS
MD5:

48A06429C8C80E419606D9BBA9167A92

SHA1:

25D203C50D02E138AC7C80CA996ABF91D008152E

SHA256:

79CD02B8004E183BC4869ED73C123C77685BE025E48D962DB4DEBA1D0A36FCBA

SSDEEP:

12288:ggrTMn061M36RUOTvpwenFSc+KgZwtLHU9TqgP8xmhVzG/Qu:gK96xlpnFSydZUTqgPwmq/7

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

    • Application was dropped or rewritten from another process

      • CasPol.exe (PID: 796)
    • Connects to CnC server

      • explorer.exe (PID: 2036)
    • Writes to a start menu file

      • explorer.exe (PID: 2036)
    • SMOKE was detected

      • explorer.exe (PID: 2036)
  • SUSPICIOUS

    • Creates files in the user directory

      • explorer.exe (PID: 2036)
  • 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 | 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: 2016:01:16 07:27:22+01:00
PEType: PE32
LinkerVersion: 10
CodeSize: 641536
InitializedDataSize: 491520
UninitializedDataSize: -
EntryPoint: 0x11e2de
OSVersion: 5
ImageVersion: -
SubsystemVersion: 5
Subsystem: Windows GUI
FileVersionNumber: 1.1.23.0
ProductVersionNumber: 1.1.23.0
FileFlagsMask: 0x0017
FileFlags: (none)
FileOS: Win32
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: English (U.S.)
CharacterSet: Unicode
FileDescription: -
FileVersion: 1.1.23.00
InternalName: -
LegalCopyright: -
OriginalFileName: -
ProductName: -
ProductVersion: 1.1.23.00

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 16-Jan-2016 06:27:22
Detected languages:
  • English - United States
FileDescription: -
FileVersion: 1.1.23.00
InternalName: -
LegalCopyright: -
OriginalFilename: -
ProductName: -
ProductVersion: 1.1.23.00

DOS Header

Magic number: MZ
Bytes on last page of file: 0x0040
Pages in file: 0x0001
Relocations: 0x0000
Size of header: 0x0002
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: 0xB400
OEM information: 0xCD09
Address of NE header: 0x00000040

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 3
Time date stamp: 16-Jan-2016 06:27:22
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_DEBUG_STRIPPED
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_RELOCS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.MPRESS1
0x00001000
0x0011D000
0x0004BA00
IMAGE_SCN_CNT_CODE, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
7.99938
.MPRESS2H\x0e
0x0011E000
0x00000E48
0x00001000
IMAGE_SCN_CNT_CODE, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
5.60865
.rsrc
0x0011F000
0x00050A3C
0x00050C00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
6.2018

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.33598
1159
Latin 1 / Western European
English - United States
RT_MANIFEST
2
4.02485
304
Latin 1 / Western European
English - United States
RT_ICON
3
2.60952
176
Latin 1 / Western European
English - United States
RT_ICON
4
5.84157
1128
Latin 1 / Western European
English - United States
RT_ICON
5
5.3349
1128
Latin 1 / Western European
English - United States
RT_ICON
6
5.46964
1128
Latin 1 / Western European
English - United States
RT_ICON
7
4.56056
296
Latin 1 / Western European
English - United States
RT_ICON
8
7.94836
20518
Latin 1 / Western European
English - United States
RT_ICON
9
3.30684
1640
Latin 1 / Western European
English - United States
RT_ICON
10
3.60649
744
Latin 1 / Western European
English - United States
RT_ICON

Imports

ADVAPI32.dll
COMCTL32.dll
COMDLG32.dll
GDI32.dll
KERNEL32.DLL
OLEAUT32.dll
PSAPI.DLL
SHELL32.dll
USER32.dll
VERSION.dll
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
33
Monitored processes
3
Malicious processes
1
Suspicious processes
0

Behavior graph

Click at the process to see the details
start jskw.pif.exe caspol.exe no specs #SMOKE explorer.exe

Process information

PID
CMD
Path
Indicators
Parent process
796"C:\Windows\Microsoft.NeT\Framework\v2.0.50727\CasPol.exe"C:\Windows\Microsoft.NeT\Framework\v2.0.50727\CasPol.exejskw.pif.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft .NET Framework CAS Policy Manager
Exit code:
0
Version:
2.0.50727.5420 (Win7SP1.050727-5400)
Modules
Images
c:\windows\microsoft.net\framework\v2.0.50727\caspol.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\usp10.dll
c:\windows\system32\imm32.dll
2036C:\Windows\Explorer.EXEC:\Windows\explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Explorer
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\winanr.dll
c:\windows\system32\mswsock.dll
c:\windows\system32\wshtcpip.dll
c:\windows\explorer.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
2364"C:\Users\admin\AppData\Local\Temp\jskw.pif.exe" C:\Users\admin\AppData\Local\Temp\jskw.pif.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Version:
1.1.23.00
Modules
Images
c:\users\admin\appdata\local\temp\jskw.pif.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\wsock32.dll
c:\windows\system32\ws2_32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\nsi.dll
c:\windows\system32\winmm.dll
Total events
904
Read events
880
Write events
24
Delete events
0

Modification events

(PID) Process:(2364) jskw.pif.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\62\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(2364) jskw.pif.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\jskw_RASAPI32
Operation:writeName:EnableFileTracing
Value:
0
(PID) Process:(2364) jskw.pif.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\jskw_RASAPI32
Operation:writeName:EnableConsoleTracing
Value:
0
(PID) Process:(2364) jskw.pif.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\jskw_RASAPI32
Operation:writeName:FileTracingMask
Value:
4294901760
(PID) Process:(2364) jskw.pif.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\jskw_RASAPI32
Operation:writeName:ConsoleTracingMask
Value:
4294901760
(PID) Process:(2364) jskw.pif.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\jskw_RASAPI32
Operation:writeName:MaxFileSize
Value:
1048576
(PID) Process:(2364) jskw.pif.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\jskw_RASAPI32
Operation:writeName:FileDirectory
Value:
%windir%\tracing
(PID) Process:(2364) jskw.pif.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\jskw_RASMANCS
Operation:writeName:EnableFileTracing
Value:
0
(PID) Process:(2364) jskw.pif.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\jskw_RASMANCS
Operation:writeName:EnableConsoleTracing
Value:
0
(PID) Process:(2364) jskw.pif.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\jskw_RASMANCS
Operation:writeName:FileTracingMask
Value:
4294901760
Executable files
1
Suspicious files
0
Text files
0
Unknown types
0

Dropped files

PID
Process
Filename
Type
2036explorer.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bwwfwhai.lnk
MD5:
SHA256:
2036explorer.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\bwwfwhai\tesrdgeh.exeexecutable
MD5:42CCD69A3BE9618D329DE0EA0FDE3A81
SHA256:14137FCC8697E967B251FD0FAFBDF79AF8DB4C1A67F2EAFE53756E3AD80A9BEF
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
3
TCP/UDP connections
4
DNS requests
3
Threats
5

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
2036
explorer.exe
GET
200
2.16.186.17:80
http://www.msftncsi.com/ncsi.txt
unknown
text
14 b
whitelisted
2036
explorer.exe
POST
404
161.117.85.207:80
http://jsbook.info/kw/
SG
binary
7 b
malicious
2036
explorer.exe
POST
200
161.117.85.207:80
http://jsbook.info/kw/
SG
malicious
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
2036
explorer.exe
2.16.186.17:80
www.msftncsi.com
Akamai International B.V.
whitelisted
2036
explorer.exe
161.117.85.207:80
jsbook.info
SG
malicious
2364
jskw.pif.exe
104.18.48.20:443
paste.ee
Cloudflare Inc
US
shared

DNS requests

Domain
IP
Reputation
paste.ee
  • 104.18.48.20
  • 104.18.49.20
malicious
www.msftncsi.com
  • 2.16.186.17
  • 2.16.186.26
whitelisted
jsbook.info
  • 161.117.85.207
malicious

Threats

PID
Process
Class
Message
2036
explorer.exe
A Network Trojan was detected
ET TROJAN Sharik/Smoke CnC Beacon 7
2036
explorer.exe
A Network Trojan was detected
MALWARE [PTsecurity] Sharik/SmokeLoader Check-in
2036
explorer.exe
A Network Trojan was detected
MALWARE [PTsecurity] Win32.Sharik/SmokeLoader 404 fake response
2036
explorer.exe
A Network Trojan was detected
ET TROJAN Sharik/Smoke CnC Beacon 7
2036
explorer.exe
A Network Trojan was detected
MALWARE [PTsecurity] Sharik/SmokeLoader Check-in
No debug info