4c9f1c89d6bf9029c76ea4e7d36c42bf38a1c73acaade635dc2af911e45c4742

Analysis

max time kernel
146s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30/12/2023, 12:02

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General

Target

17e4a4b0f8e6270122f96dca1f05346a.exe
Size

26KB
MD5

17e4a4b0f8e6270122f96dca1f05346a
SHA1

b75b30fb8a9e08665ce2d94e11dc3486ed45ec56
SHA256

4c9f1c89d6bf9029c76ea4e7d36c42bf38a1c73acaade635dc2af911e45c4742
SHA512

b1f598472ddcedd976888b3b693b11549b8de07052d2fcd949b53ab4535bff6c175a054ccbe2f1a05eddecc99e32e15d650bb03ec44b19a045a6216c1de9b6fc
SSDEEP

768:xr7yKCWhORb9+2tuL+yhbZ9x2zSzZyxHVXcmO7tz:57yIAbp8ylxHVXcmGZ

Score

8^/10

persistence

Malware Config

Signatures

Sets file execution options in registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe	17e4a4b0f8e6270122f96dca1f05346a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Program Files (x86)\\Microsoft Common\\wuauclt.exe"	17e4a4b0f8e6270122f96dca1f05346a.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Program Files (x86)\\Microsoft Common\\wuauclt.exe"	17e4a4b0f8e6270122f96dca1f05346a.exe

Drops file in System32 directory 9 IoCs

description	ioc	Process
File created	C:\Windows\System32\DriverStore\FileRepository\ufxchipidea.inf_amd64_1c78775fffab6a0a\UfxChipidea.sys	17e4a4b0f8e6270122f96dca1f05346a.exe
File created	C:\Windows\System32\DriverStore\FileRepository\umbus.inf_amd64_b78a9c5b6fd62c27\umbus.sys	17e4a4b0f8e6270122f96dca1f05346a.exe
File created	C:\Windows\System32\DriverStore\FileRepository\urschipidea.inf_amd64_78ad1c14e33df968\urschipidea.sys	17e4a4b0f8e6270122f96dca1f05346a.exe
File created	C:\Windows\System32\DriverStore\FileRepository\swenum.inf_amd64_16a14542b63c02af\swenum.sys	17e4a4b0f8e6270122f96dca1f05346a.exe
File created	C:\Windows\System32\DriverStore\FileRepository\uefi.inf_amd64_c1628ffa62c8e54c\UEFI.sys	17e4a4b0f8e6270122f96dca1f05346a.exe
File created	C:\Windows\System32\DriverStore\FileRepository\urssynopsys.inf_amd64_057fa37902020500\urssynopsys.sys	17e4a4b0f8e6270122f96dca1f05346a.exe
File created	C:\Windows\System32\DriverStore\FileRepository\vrd.inf_amd64_81fbd405ff2470fc\vrd.sys	17e4a4b0f8e6270122f96dca1f05346a.exe
File created	C:\Windows\System32\DriverStore\FileRepository\compositebus.inf_amd64_7500cffa210c6946\CompositeBus.sys	17e4a4b0f8e6270122f96dca1f05346a.exe
File created	C:\Windows\System32\DriverStore\FileRepository\genericusbfn.inf_amd64_53931f0ae21d6d2c\genericusbfn.sys	17e4a4b0f8e6270122f96dca1f05346a.exe

Program crash 3 IoCs

pid	pid_target	Process	procid_target
2164	396	WerFault.exe	30
3020	396	WerFault.exe	30
3528	396	WerFault.exe	30

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
396	17e4a4b0f8e6270122f96dca1f05346a.exe
396	17e4a4b0f8e6270122f96dca1f05346a.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	396	17e4a4b0f8e6270122f96dca1f05346a.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 396 wrote to memory of 780	396	17e4a4b0f8e6270122f96dca1f05346a.exe	80
PID 396 wrote to memory of 3604	396	17e4a4b0f8e6270122f96dca1f05346a.exe	93
PID 396 wrote to memory of 3604	396	17e4a4b0f8e6270122f96dca1f05346a.exe	93
PID 396 wrote to memory of 3604	396	17e4a4b0f8e6270122f96dca1f05346a.exe	93

C:\Users\Admin\AppData\Local\Temp\17e4a4b0f8e6270122f96dca1f05346a.exe
"C:\Users\Admin\AppData\Local\Temp\17e4a4b0f8e6270122f96dca1f05346a.exe"
1⤵
- Sets file execution options in registry
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:396
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" %1
  2⤵
  PID:3604
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 396 -s 676
  2⤵
  - Program crash
  PID:2164
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 396 -s 688
  2⤵
  - Program crash
  PID:3020
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 396 -s 696
  2⤵
  - Program crash
  PID:3528

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch -p
1⤵
PID:780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 396 -ip 396
1⤵
PID:2916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 396 -ip 396
1⤵
PID:4960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 396 -ip 396
1⤵
PID:4624

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/396-0-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/396-40-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download