File name:

combofix.exe

Full analysis: https://app.any.run/tasks/877e28f0-bdbf-4e15-8797-f71e45239825
Verdict: Malicious activity
Analysis date: November 19, 2020, 13:31:12
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, UPX compressed, RAR self-extracting archive
MD5:

9D28D175E0D467B683AE87FE6728CC14

SHA1:

47961B6A88BE7ADE825573579B57585004AF0977

SHA256:

47BF0BF8516951973F0AF471F3B2AA30991A99B11854CBC237482A1E333A15D0

SSDEEP:

49152:pyhan2svON6Effh+tdbgaWvyaJ6zbfDxY0+r8vHPZAU0NxELRIbYTnw+sOuAtIdy:pQPJNrffh+t9mvyaJ6zjVY0RvHPZAU0g

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

      • iexplore.exe (PID: 868)
      • n.pif (PID: 2488)
      • pv.com (PID: 3160)
      • n.pif (PID: 2144)
      • hidec.exe (PID: 1940)
      • pev.exe (PID: 2652)
      • hidec.exe (PID: 548)
      • hidec.exe (PID: 2840)
      • hidec.exe (PID: 2676)
      • swreg.exe (PID: 2764)
      • hidec.exe (PID: 3388)
      • n.pif (PID: 256)
      • hidec.exe (PID: 1356)
      • swreg.exe (PID: 2828)
      • swreg.exe (PID: 3660)
      • swreg.exe (PID: 2276)
      • n.pif (PID: 2996)
      • SWXCACLS.cfxxe (PID: 3024)
      • SWREG.exe (PID: 3348)
      • hidec.exe (PID: 2220)
      • SWREG.exe (PID: 3440)
      • SWREG.exe (PID: 956)
      • n.pif (PID: 2908)
      • n.pif (PID: 3708)
      • GSAR.cfxxe (PID: 3448)
      • SWREG.exe (PID: 2508)
      • nircmd.cfxxe (PID: 128)
      • GSAR.cfxxe (PID: 3092)
      • n.pif (PID: 3376)
      • swreg.exe (PID: 1504)
      • nircmd.cfxxe (PID: 3532)
      • cmd.execf (PID: 3096)
      • NirCmd.cfxxe (PID: 1808)
      • NirCmd.cfxxe (PID: 800)
      • swreg.exe (PID: 3396)
      • iexplore.exe (PID: 3732)
      • grep.cfxxe (PID: 2964)
      • grep.cfxxe (PID: 3716)
      • grep.cfxxe (PID: 3296)
      • swreg.exe (PID: 704)
      • grep.cfxxe (PID: 2708)
      • swreg.exe (PID: 3864)
      • grep.cfxxe (PID: 2328)
      • hidec.exe (PID: 628)
      • PV.cfxxe (PID: 2592)
      • swreg.exe (PID: 1976)
      • NircmdB.exe (PID: 4056)
      • pev.exe (PID: 3288)

    • Changes the autorun value in the registry

      • InfDefaultInstall.exe (PID: 2108)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • combofix.exe (PID: 2704)
      • GSAR.cfxxe (PID: 3448)
      • cmd.execf (PID: 3096)
      • GSAR.cfxxe (PID: 3092)

    • Creates executable files which already exist in Windows

      • combofix.exe (PID: 2704)

    • Modifies the open verb of a shell class

      • InfDefaultInstall.exe (PID: 2108)
      • swreg.exe (PID: 2764)
      • swreg.exe (PID: 3396)

    • Starts application with an unusual extension

      • combofix.exe (PID: 2704)
      • hidec.exe (PID: 3388)
      • n.pif (PID: 3708)
      • n.pif (PID: 2488)
      • nircmd.cfxxe (PID: 128)
      • n.pif (PID: 3376)
      • cmd.execf (PID: 3096)

    • Creates files in the Windows directory

      • GSAR.cfxxe (PID: 3448)

    • Starts CMD.EXE for commands execution

      • n.pif (PID: 3376)

  • INFO

    • Dropped object may contain Bitcoin addresses

      • combofix.exe (PID: 2704)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | UPX compressed Win32 Executable (39.3)
.exe | Win32 EXE Yoda's Crypter (38.6)
.dll | Win32 Dynamic Link Library (generic) (9.5)
.exe | Win32 Executable (generic) (6.5)
.exe | Generic Win/DOS Executable (2.9)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2009:07:20 10:15:43+02:00
PEType: PE32
LinkerVersion: 9
CodeSize: 45056
InitializedDataSize: 8192
UninitializedDataSize: 106496
EntryPoint: 0x25a60
OSVersion: 5
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 20-Jul-2009 08:15:43

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: 3
Time date stamp: 20-Jul-2009 08:15:43
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
UPX0
0x00001000
0x0001A000
0x00000000
IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0
UPX1
0x0001B000
0x0000B000
0x0000AC00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
7.90924
.rsrc
0x00026000
0x00002000
0x00001800
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
4.36398

Imports

ADVAPI32.dll
COMCTL32.dll
COMDLG32.dll
GDI32.dll
KERNEL32.DLL
OLEAUT32.dll
SHELL32.dll
USER32.dll
ole32.dll
No data.
screenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
105
Monitored processes
54
Malicious processes
9
Suspicious processes
9

Behavior graph

Click at the process to see the details
drop and start drop and start drop and start drop and start drop and start drop and start drop and start drop and start drop and start drop and start drop and start drop and start drop and start drop and start drop and start drop and start drop and start drop and start drop and start start drop and start drop and start drop and start drop and start drop and start combofix.exe iexplore.exe no specs iexplore.exe no specs n.pif no specs pv.com no specs hidec.exe no specs n.pif no specs pev.exe no specs infdefaultinstall.exe runonce.exe no specs grpconv.exe no specs hidec.exe no specs hidec.exe no specs hidec.exe no specs swreg.exe no specs hidec.exe no specs hidec.exe no specs n.pif no specs swreg.exe no specs swreg.exe no specs hidec.exe no specs swreg.exe no specs n.pif no specs swxcacls.cfxxe no specs swreg.exe no specs swreg.exe no specs swreg.exe no specs hidec.exe no specs n.pif no specs swreg.exe no specs n.pif no specs gsar.cfxxe nircmd.cfxxe no specs gsar.cfxxe n.pif no specs swreg.exe no specs nircmd.cfxxe no specs cmd.execf nircmd.cfxxe no specs nircmd.cfxxe no specs swreg.exe no specs pev.exe no specs pv.cfxxe no specs grep.cfxxe no specs grep.cfxxe no specs grep.cfxxe no specs grep.cfxxe no specs swreg.exe no specs grep.cfxxe no specs swreg.exe no specs swreg.exe no specs chcp.com no specs nircmdb.exe no specs combofix.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
128"C:\32788R22FWJFW\nircmd.cfxxe" exec hide 32788R22FWJFW\GSAR.cfxxe -if -s\:000M:000i:000c:000r:000o -r\:001M:000i:000c:000r:000o "C:\Windows\system32\cmd.exe" "C:\Windows\system32\cmd.execf"C:\32788R22FWJFW\nircmd.cfxxe—combofix.exe
User:
admin
Company:
NirSoft
Integrity Level:
HIGH
Description:
NirCmd
Exit code:
0
Version:
2.35
Modules
Images
c:\32788r22fwjfw\nircmd.cfxxe
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
256"C:\32788R22FWJFW\n.pif" exec hide 32788R22FWJFW\SWREG.exe acl "hklm\software\microsoft\windows nt\currentversion\windows" /O Guest /QC:\32788R22FWJFW\n.pif—combofix.exe
User:
admin
Company:
NirSoft
Integrity Level:
HIGH
Description:
NirCmd
Exit code:
0
Version:
2.35
Modules
Images
c:\32788r22fwjfw\n.pif
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
548"C:\32788R22FWJFW\hidec.exe" 32788R22FWJFW\swreg.exe import 32788R22FWJFW\EXE.regC:\32788R22FWJFW\hidec.exe—combofix.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Modules
Images
c:\32788r22fwjfw\hidec.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\imm32.dll
628"C:\32788R22FWJFW\hidec.exe" 32788R22FWJFW\pev.exe -k * and { *Antivirus*Pro.exe or svchast.exe or winupdate.exe or or ANTI_files.exe or dbsinit.exe or desot.exe or aap.exe or -preg"\d{3,}.exe" }C:\32788R22FWJFW\hidec.exe—combofix.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Modules
Images
c:\32788r22fwjfw\hidec.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\imm32.dll
704SWREG.exe QUERY "hklm\software\microsoft\windows nt\currentversion" /v currentversion C:\32788R22FWJFW\swreg.exe—cmd.execf
User:
admin
Company:
SteelWerX
Integrity Level:
HIGH
Description:
Freeware implementation of REG.EXE
Exit code:
0
Version:
3.0.0.0
Modules
Images
c:\32788r22fwjfw\swreg.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\ole32.dll
c:\windows\system32\gdi32.dll
80032788R22FWJFW\Nircmd.cfxxe killprocess "C:\Users\admin\AppData\Local\Temp\combofix.exe"C:\32788R22FWJFW\NirCmd.cfxxe—cmd.execf
User:
admin
Company:
NirSoft
Integrity Level:
HIGH
Description:
NirCmd
Exit code:
0
Version:
2.35
Modules
Images
c:\32788r22fwjfw\nircmd.cfxxe
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
868"C:\32788R22FWJFW\iexplore.exe" win close ititle "SysInternals"C:\32788R22FWJFW\iexplore.exe—combofix.exe
User:
admin
Company:
NirSoft
Integrity Level:
HIGH
Description:
NirCmd
Exit code:
0
Version:
2.35
Modules
Images
c:\32788r22fwjfw\iexplore.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
95632788R22FWJFW\SWREG.exe acl "hklm\software\microsoft\windows nt\currentversion\windows" /DE:F /QC:\32788R22FWJFW\SWREG.exe—n.pif
User:
admin
Company:
SteelWerX
Integrity Level:
HIGH
Description:
Freeware implementation of REG.EXE
Exit code:
0
Version:
3.0.0.0
Modules
Images
c:\32788r22fwjfw\swreg.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\ole32.dll
c:\windows\system32\gdi32.dll
1356"C:\32788R22FWJFW\hidec.exe" 32788R22FWJFW\SWREG.exe acl "hklm\software\microsoft\windows nt\currentversion\windows" /O Guest /QC:\32788R22FWJFW\hidec.exe—combofix.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Modules
Images
c:\32788r22fwjfw\hidec.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\imm32.dll
150432788R22FWJFW\swreg.exe acl "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32" /reset /qC:\32788R22FWJFW\swreg.exe—n.pif
User:
admin
Company:
SteelWerX
Integrity Level:
HIGH
Description:
Freeware implementation of REG.EXE
Exit code:
0
Version:
3.0.0.0
Modules
Images
c:\32788r22fwjfw\swreg.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\ole32.dll
c:\windows\system32\gdi32.dll
Total events
334
Read events
121
Write events
106
Delete events
107

Modification events

(PID) Process:(2704) combofix.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(2704) combofix.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
(PID) Process:(3160) pv.comKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\13B\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(2144) n.pifKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(2144) n.pifKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
(PID) Process:(2956) runonce.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce
Operation:delete valueName:GrpConv
Value:
grpconv -o
(PID) Process:(2956) runonce.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(2956) runonce.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
(PID) Process:(2108) InfDefaultInstall.exeKey:HKEY_LOCAL_MACHINE\SYSTEM\Setup\SetupapiLogStatus
Operation:writeName:setupapi.app.log
Value:
4096
(PID) Process:(2108) InfDefaultInstall.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce
Operation:writeName:(default)
Value:
Executable files
33
Suspicious files
11
Text files
107
Unknown types
4

Dropped files

PID
Process
Filename
Type
2704combofix.exeC:\32788R22FWJFW\Kollect.battext
MD5:—
SHA256:—
2704combofix.exeC:\32788R22FWJFW\Lang.battext
MD5:—
SHA256:—
2704combofix.exeC:\32788R22FWJFW\Boot.battext
MD5:—
SHA256:—
2704combofix.exeC:\32788R22FWJFW\c.batbinary
MD5:—
SHA256:—
2704combofix.exeC:\32788R22FWJFW\List-D.battext
MD5:—
SHA256:—
2704combofix.exeC:\32788R22FWJFW\List-B.battext
MD5:—
SHA256:—
2704combofix.exeC:\32788R22FWJFW\DelClsid.battext
MD5:—
SHA256:—
2704combofix.exeC:\32788R22FWJFW\Combobatch.battext
MD5:—
SHA256:—
2704combofix.exeC:\32788R22FWJFW\history.battext
MD5:—
SHA256:—
2704combofix.exeC:\32788R22FWJFW\FIND3M.battext
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
combofix.exe