ff151251cdecb112125ac430a21cd7e398a92475b06dad82a125f967836496d7

Analysis

max time kernel
57s
max time network
101s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
04/12/2022, 10:12

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General

Target

ff151251cdecb112125ac430a21cd7e398a92475b06dad82a125f967836496d7.exe
Size

318KB
MD5

0e923d29d6ae9be0ce1fdecd90793ddd
SHA1

4c9237d2318a5d70d761385778f4302e267cbe8e
SHA256

ff151251cdecb112125ac430a21cd7e398a92475b06dad82a125f967836496d7
SHA512

9e6a9943901889ecf5b672fd5b199448d5f5982df5587d23c62a4a24da5da1c654867d09e91a066106e45c932ba70f834333991a9ea386c241ac2b91d900bd32
SSDEEP

6144:jNM3Wm2uXVRG9QS+HWmLjeGQJ5gihmC5LLIMAxb0rbRPB09PYDOFJ/o9oS:S3WR+RtHWQQJS0NLLIMa0/R4YDOv/o9Z

Score

8^/10

bootkit persistence upx

Malware Config

Signatures

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1184-54-0x0000000000400000-0x000000000050B000-memory.dmp	upx
behavioral1/memory/1184-55-0x0000000000400000-0x000000000050B000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\Microsoft Windows Live Messenger = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ff151251cdecb112125ac430a21cd7e398a92475b06dad82a125f967836496d7.exe"	reg.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	ff151251cdecb112125ac430a21cd7e398a92475b06dad82a125f967836496d7.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1384	1184	WerFault.exe	14

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1204	reg.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	1184	ff151251cdecb112125ac430a21cd7e398a92475b06dad82a125f967836496d7.exe
Token: SeIncBasePriorityPrivilege	1184	ff151251cdecb112125ac430a21cd7e398a92475b06dad82a125f967836496d7.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1184 wrote to memory of 1204	1184	ff151251cdecb112125ac430a21cd7e398a92475b06dad82a125f967836496d7.exe	28
PID 1184 wrote to memory of 1204	1184	ff151251cdecb112125ac430a21cd7e398a92475b06dad82a125f967836496d7.exe	28
PID 1184 wrote to memory of 1204	1184	ff151251cdecb112125ac430a21cd7e398a92475b06dad82a125f967836496d7.exe	28
PID 1184 wrote to memory of 1204	1184	ff151251cdecb112125ac430a21cd7e398a92475b06dad82a125f967836496d7.exe	28
PID 1184 wrote to memory of 1384	1184	ff151251cdecb112125ac430a21cd7e398a92475b06dad82a125f967836496d7.exe	30
PID 1184 wrote to memory of 1384	1184	ff151251cdecb112125ac430a21cd7e398a92475b06dad82a125f967836496d7.exe	30
PID 1184 wrote to memory of 1384	1184	ff151251cdecb112125ac430a21cd7e398a92475b06dad82a125f967836496d7.exe	30
PID 1184 wrote to memory of 1384	1184	ff151251cdecb112125ac430a21cd7e398a92475b06dad82a125f967836496d7.exe	30

C:\Users\Admin\AppData\Local\Temp\ff151251cdecb112125ac430a21cd7e398a92475b06dad82a125f967836496d7.exe
"C:\Users\Admin\AppData\Local\Temp\ff151251cdecb112125ac430a21cd7e398a92475b06dad82a125f967836496d7.exe"
1⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Windows\SysWOW64\reg.exe
  reg add HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "Microsoft Windows Live Messenger" /d C:\Users\Admin\AppData\Local\Temp\ff151251cdecb112125ac430a21cd7e398a92475b06dad82a125f967836496d7.exe /f
  2⤵
  - Adds Run key to start application
  - Modifies registry key
  PID:1204
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1184 -s 788
  2⤵
  - Program crash
  PID:1384

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1184-54-0x0000000000400000-0x000000000050B000-memory.dmp

Filesize
1.0MB

Download
memory/1184-55-0x0000000000400000-0x000000000050B000-memory.dmp

Filesize
1.0MB

Download
memory/1184-57-0x0000000075991000-0x0000000075993000-memory.dmp

Filesize
8KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads