File name:

yacspeel.exe

Full analysis: https://app.any.run/tasks/85a1ac7f-a228-4298-9f7c-47aa73ed2da7
Verdict: Malicious activity
Analysis date: February 19, 2019, 07:51:38
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:

E5C06BD78DF948D15268F41A11499667

SHA1:

0954620BA64081F1800B3713B3690FFFC66BECAD

SHA256:

050EE6C08F2498EDC7CC46B23217D0CD5D054066F58DEA1F07DF43CB4F330A38

SSDEEP:

1536:9qSoyYo5o2NQV9TcmviTvLKUZRm5VVY87uoXO3p:GE2JGLN34jb7uoXOZ

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: 2028)
      • svchost.exe (PID: 844)

  • SUSPICIOUS

    • Uses RUNDLL32.EXE to load library

      • explorer.exe (PID: 2028)

  • INFO

    • Loads main object executable

      • rundll32.exe (PID: 2924)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win32 Executable MS Visual C++ (generic) (42.2)
.exe | Win64 Executable (generic) (37.3)
.dll | Win32 Dynamic Link Library (generic) (8.8)
.exe | Win32 Executable (generic) (6)
.exe | Generic Win/DOS Executable (2.7)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2007:06:26 10:46:11+02:00
PEType: PE32
LinkerVersion: 6
CodeSize: 61440
InitializedDataSize: 40960
UninitializedDataSize: -
EntryPoint: 0x8539
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 26-Jun-2007 08:46:11

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: 0x000000E8

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 4
Time date stamp: 26-Jun-2007 08:46:11
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
0x0000E57A
0x0000F000
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.38469
.rdata
0x00010000
0x00001896
0x00002000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.43998
.data
0x00012000
0x00005B04
0x00004000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
2.43548
.reloc
0x00018000
0x00001A9E
0x00002000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
4.48776

Imports

ADVAPI32.dll
KERNEL32.dll
RPCRT4.dll
USER32.dll
WS2_32.dll

Exports

Title
Ordinal
Address
Entry
1
0x00003550
InstallM
2
0x000035B0
No data.
screenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
32
Monitored processes
4
Malicious processes
2
Suspicious processes
0

Behavior graph

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

Process information

PID
CMD
Path
Indicators
Parent process
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
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\svchost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\ole32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
2028C:\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
2924"C:\Windows\System32\rundll32.exe" "C:\Users\admin\Downloads\yacspeel.exe", EntryC:\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)
Modules
Images
c:\windows\system32\rundll32.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\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\imagehlp.dll
3720"C:\Windows\explorer.exe" C:\Windows\explorer.exe—explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Explorer
Exit code:
1
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\explorer.exe
c:\systemroot\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
c:\windows\system32\rpcrt4.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
Total events
424
Read events
322
Write events
102
Delete events
0

Modification events

(PID) Process:(2028) explorer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\UserAssist\{CEBFF5CD-ACE2-4F4F-9178-9926F41749EA}\Count
Operation:writeName:{S38OS404-1Q43-42S2-9305-67QR0O28SP23}\rkcybere.rkr
Value:
000000000700000009000000A8D90300000080BF000080BF000080BF000080BF000080BF000080BF000080BF000080BF000080BF000080BFFFFFFFFFC0AEBE0B28C8D40100000000
(PID) Process:(2028) explorer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\UserAssist\{CEBFF5CD-ACE2-4F4F-9178-9926F41749EA}\Count
Operation:writeName:HRZR_PGYFRFFVBA
Value:
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
(PID) Process:(2028) explorer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\UserAssist\{F4E57C4B-2036-45F0-A9AB-443BCFE33D9F}\Count
Operation:writeName:{9R3995NO-1S9P-4S13-O827-48O24O6P7174}\GnfxOne\Jvaqbjf Rkcybere.yax
Value:
00000000070000000000000006000000000080BF000080BF000080BF000080BF000080BF000080BF000080BF000080BF000080BF000080BFFFFFFFFFC0AEBE0B28C8D40100000000
(PID) Process:(2028) explorer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\UserAssist\{F4E57C4B-2036-45F0-A9AB-443BCFE33D9F}\Count
Operation:writeName:HRZR_PGYFRFFVBA
Value:
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
(PID) Process:(2028) explorer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\UserAssist\{F4E57C4B-2036-45F0-A9AB-443BCFE33D9F}\Count
Operation:writeName:{9R3995NO-1S9P-4S13-O827-48O24O6P7174}\GnfxOne\Jvaqbjf Rkcybere.yax
Value:
00000000070000000000000007000000000080BF000080BF000080BF000080BF000080BF000080BF000080BF000080BF000080BF000080BFFFFFFFFFC0AEBE0B28C8D40100000000
(PID) Process:(2028) explorer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\UserAssist\{F4E57C4B-2036-45F0-A9AB-443BCFE33D9F}\Count
Operation:writeName:HRZR_PGYFRFFVBA
Value:
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
(PID) Process:(2028) explorer.exeKey:HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\Shell\BagMRU
Operation:writeName:NodeSlots
Value:
02020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202020202
(PID) Process:(2028) explorer.exeKey:HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\Shell\BagMRU
Operation:writeName:MRUListEx
Value:
0200000000000000010000000700000006000000030000000500000004000000FFFFFFFF
(PID) Process:(2028) explorer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Toolbar
Operation:writeName:Locked
Value:
1
(PID) Process:(2028) explorer.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
Executable files
0
Suspicious files
2
Text files
0
Unknown types
1

Dropped files

PID
Process
Filename
Type
844svchost.exeC:\Windows\appcompat\programs\RecentFileCache.bcftxt
MD5:—
SHA256:—
2924rundll32.exeC:\Users\admin\AppData\Local\Temp\6D73776D706461742E746C62FA.tmpbinary
MD5:—
SHA256:—
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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Reports
yacspeel.exe