908095ef8efd3243e7233d7f33fe7b78f65a563ca43180a0826e8b6d4cc49ce6

General

Target

7235a6cb8daf05e126accb0bb71b1745_JaffaCakes118.exe
Size

33KB
MD5

7235a6cb8daf05e126accb0bb71b1745
SHA1

79f3234feb1af48fcec3c01c25e6298a1e14483a
SHA256

908095ef8efd3243e7233d7f33fe7b78f65a563ca43180a0826e8b6d4cc49ce6
SHA512

6840fb7018bfb89af2c26e99c5f65ac3a09cb275b152b23850a8b09a40310d81e19532dadbd16bfb04632611ae64000fdfcd6a12e9bebdf3b4baa41ab0480e52
SSDEEP

768:erPCBB3zaPmI9/oHW40OmV+rI1dQG4csxaKVTWbb:QPCBRaPt5oHWfq81dQG4jxaKVTk

Score

7^/10

bootkit defense_evasion discovery persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4088	wuaucldt.exe
3208	wuaucldt.exe

Adds Run key to start application 2 TTPs 2 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\wuaucldt = "c:\\windows\\system32\\wuaucldt.exe"	wuaucldt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1750093773-264148664-1320403265-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wuaucldt = "c:\\users\\admin\\wuaucldt.exe"	wuaucldt.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

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

T1542.003

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

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	\??\c:\windows\SysWOW64\wuaucldt.exe	7235a6cb8daf05e126accb0bb71b1745_JaffaCakes118.exe
File created	\??\c:\windows\SysWOW64\wuaucldt.exe	wuaucldt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3208 set thread context of 1560	3208	wuaucldt.exe	90

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuaucldt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7235a6cb8daf05e126accb0bb71b1745_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuaucldt.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1168 wrote to memory of 4088	1168	7235a6cb8daf05e126accb0bb71b1745_JaffaCakes118.exe	86
PID 1168 wrote to memory of 4088	1168	7235a6cb8daf05e126accb0bb71b1745_JaffaCakes118.exe	86
PID 1168 wrote to memory of 4088	1168	7235a6cb8daf05e126accb0bb71b1745_JaffaCakes118.exe	86
PID 4088 wrote to memory of 3208	4088	wuaucldt.exe	88
PID 4088 wrote to memory of 3208	4088	wuaucldt.exe	88
PID 4088 wrote to memory of 3208	4088	wuaucldt.exe	88
PID 3208 wrote to memory of 1560	3208	wuaucldt.exe	90
PID 3208 wrote to memory of 1560	3208	wuaucldt.exe	90
PID 3208 wrote to memory of 1560	3208	wuaucldt.exe	90
PID 3208 wrote to memory of 1560	3208	wuaucldt.exe	90
PID 3208 wrote to memory of 1560	3208	wuaucldt.exe	90
PID 1168 wrote to memory of 3100	1168	7235a6cb8daf05e126accb0bb71b1745_JaffaCakes118.exe	91
PID 1168 wrote to memory of 3100	1168	7235a6cb8daf05e126accb0bb71b1745_JaffaCakes118.exe	91
PID 1168 wrote to memory of 3100	1168	7235a6cb8daf05e126accb0bb71b1745_JaffaCakes118.exe	91
PID 4088 wrote to memory of 4784	4088	wuaucldt.exe	93
PID 4088 wrote to memory of 4784	4088	wuaucldt.exe	93
PID 4088 wrote to memory of 4784	4088	wuaucldt.exe	93

C:\Users\Admin\AppData\Local\Temp\7235a6cb8daf05e126accb0bb71b1745_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7235a6cb8daf05e126accb0bb71b1745_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1168
- \??\c:\windows\SysWOW64\wuaucldt.exe
  c:\windows\system32\wuaucldt.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4088
- - \??\c:\users\admin\wuaucldt.exe
    c:\users\admin\wuaucldt.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3208
  - - C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\svchost.exe
      4⤵
      Writes to the Master Boot Record (MBR)
      System Location Discovery: System Language Discovery
      PID:1560
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del c:\windows\syswow64\wuaucldt.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4784
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del c:\users\admin\appdata\local\temp\7235A6~1.EXE
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3100

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Indicator Removal

1

T1070

File Deletion

Modify Registry

Pre-OS Boot

T1542

Bootkit

1

T1542.003

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\wuaucldt.exe

Filesize
33KB

MD5
7235a6cb8daf05e126accb0bb71b1745

SHA1
79f3234feb1af48fcec3c01c25e6298a1e14483a

SHA256
908095ef8efd3243e7233d7f33fe7b78f65a563ca43180a0826e8b6d4cc49ce6

SHA512
6840fb7018bfb89af2c26e99c5f65ac3a09cb275b152b23850a8b09a40310d81e19532dadbd16bfb04632611ae64000fdfcd6a12e9bebdf3b4baa41ab0480e52

Download Submit
memory/1168-0-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/1168-1-0x0000000009000000-0x0000000009009000-memory.dmp

Filesize
36KB

Download
memory/1168-3-0x0000000070000000-0x000000007000B000-memory.dmp

Filesize
44KB

Download
memory/1168-2-0x0000000009000000-0x0000000009009000-memory.dmp

Filesize
36KB

Download
memory/1168-59-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/1560-19-0x0000000000490000-0x0000000000499000-memory.dmp

Filesize
36KB

Download
memory/1560-20-0x0000000000490000-0x0000000000499000-memory.dmp

Filesize
36KB

Download
memory/1560-21-0x0000000000490000-0x0000000000499000-memory.dmp

Filesize
36KB

Download
memory/1560-22-0x0000000000490000-0x0000000000499000-memory.dmp

Filesize
36KB

Download
memory/1560-24-0x0000000000490000-0x0000000000499000-memory.dmp

Filesize
36KB

Download
memory/1560-25-0x0000000000490000-0x0000000000499000-memory.dmp

Filesize
36KB

Download
memory/4088-12-0x0000000070000000-0x000000007000B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads