8feaa82a64ccd8ddf24db1e4bfa9ec384d594239c2c515c4cb1b887a4bb2b74f

Analysis

max time kernel
143s
max time network
145s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
11-08-2024 22:56

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General

Target

8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe
Size

168KB
MD5

8c501fac0d7b30307d36a6ec52cedc41
SHA1

076db7f2bb76c321630ea0716b0c251c8411fb5f
SHA256

8feaa82a64ccd8ddf24db1e4bfa9ec384d594239c2c515c4cb1b887a4bb2b74f
SHA512

9ed35e562c204a79d66d9e5891acea105367013dc752e7f627081edfb6ec9decb04e3051f4722020e142ea435bbd3b0a81fe27ec4aa327431b8456501841ec3a
SSDEEP

3072:MqpUfn63I6rYPEIeyxs0WViAMaDj1M4+kOCEODXpt6VthJTq:ooz0sItxs0WVWaC4+JzODj6VthJq

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2592	WinUpdate.exe
2756	WinUpdate.exe

Loads dropped DLL 8 IoCs

pid	Process
2856	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe
2592	WinUpdate.exe
2592	WinUpdate.exe
2592	WinUpdate.exe
2592	WinUpdate.exe
2756	WinUpdate.exe
2756	WinUpdate.exe
2756	WinUpdate.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2784-0-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/2784-11-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/files/0x000900000001202c-15.dat	upx
behavioral1/memory/2856-17-0x0000000000220000-0x0000000000266000-memory.dmp	upx
behavioral1/memory/2592-21-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/2592-38-0x0000000000400000-0x0000000000446000-memory.dmp	upx

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\Microsoft iexplorer11 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WinUpdate.exe"	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000\Software\Microsoft\Windows\CurrentVersion\Run\Microsoft iexplorer11 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\WinUpdate.exe"	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2784 set thread context of 2856	2784	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe	30
PID 2592 set thread context of 2756	2592	WinUpdate.exe	32

System Location Discovery: System Language Discovery 1 TTPs 4 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	WinUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WinUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2784	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe
2592	WinUpdate.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2784 wrote to memory of 2856	2784	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe	30
PID 2784 wrote to memory of 2856	2784	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe	30
PID 2784 wrote to memory of 2856	2784	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe	30
PID 2784 wrote to memory of 2856	2784	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe	30
PID 2784 wrote to memory of 2856	2784	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe	30
PID 2784 wrote to memory of 2856	2784	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe	30
PID 2784 wrote to memory of 2856	2784	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe	30
PID 2784 wrote to memory of 2856	2784	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe	30
PID 2784 wrote to memory of 2856	2784	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe	30
PID 2856 wrote to memory of 2592	2856	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe	31
PID 2856 wrote to memory of 2592	2856	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe	31
PID 2856 wrote to memory of 2592	2856	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe	31
PID 2856 wrote to memory of 2592	2856	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe	31
PID 2856 wrote to memory of 2592	2856	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe	31
PID 2856 wrote to memory of 2592	2856	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe	31
PID 2856 wrote to memory of 2592	2856	8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe	31
PID 2592 wrote to memory of 2756	2592	WinUpdate.exe	32
PID 2592 wrote to memory of 2756	2592	WinUpdate.exe	32
PID 2592 wrote to memory of 2756	2592	WinUpdate.exe	32
PID 2592 wrote to memory of 2756	2592	WinUpdate.exe	32
PID 2592 wrote to memory of 2756	2592	WinUpdate.exe	32
PID 2592 wrote to memory of 2756	2592	WinUpdate.exe	32
PID 2592 wrote to memory of 2756	2592	WinUpdate.exe	32
PID 2592 wrote to memory of 2756	2592	WinUpdate.exe	32
PID 2592 wrote to memory of 2756	2592	WinUpdate.exe	32
PID 2592 wrote to memory of 2756	2592	WinUpdate.exe	32
PID 2592 wrote to memory of 2756	2592	WinUpdate.exe	32
PID 2592 wrote to memory of 2756	2592	WinUpdate.exe	32

C:\Users\Admin\AppData\Local\Temp\8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2784
- C:\Users\Admin\AppData\Local\Temp\8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\8c501fac0d7b30307d36a6ec52cedc41_JaffaCakes118.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2856
- - C:\Users\Admin\AppData\Local\Temp\WinUpdate.exe
    "C:\Users\Admin\AppData\Local\Temp\WinUpdate.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2592
  - - C:\Users\Admin\AppData\Local\Temp\WinUpdate.exe
      "C:\Users\Admin\AppData\Local\Temp\WinUpdate.exe"
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      PID:2756

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\WinUpdate.exe

Filesize
168KB

MD5
8c501fac0d7b30307d36a6ec52cedc41

SHA1
076db7f2bb76c321630ea0716b0c251c8411fb5f

SHA256
8feaa82a64ccd8ddf24db1e4bfa9ec384d594239c2c515c4cb1b887a4bb2b74f

SHA512
9ed35e562c204a79d66d9e5891acea105367013dc752e7f627081edfb6ec9decb04e3051f4722020e142ea435bbd3b0a81fe27ec4aa327431b8456501841ec3a

Download Submit
memory/2592-38-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2592-25-0x00000000002B0000-0x00000000002F6000-memory.dmp

Filesize
280KB

Download
memory/2592-21-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2756-48-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/2756-52-0x0000000000230000-0x0000000000276000-memory.dmp

Filesize
280KB

Download
memory/2756-63-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/2756-61-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/2756-59-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/2756-57-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/2756-54-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/2756-53-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/2756-32-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2756-50-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/2756-44-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/2756-47-0x0000000000230000-0x0000000000276000-memory.dmp

Filesize
280KB

Download
memory/2756-46-0x0000000000230000-0x0000000000276000-memory.dmp

Filesize
280KB

Download
memory/2756-45-0x0000000000230000-0x0000000000276000-memory.dmp

Filesize
280KB

Download
memory/2784-0-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2784-3-0x00000000002E0000-0x0000000000326000-memory.dmp

Filesize
280KB

Download
memory/2784-11-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2856-31-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/2856-4-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/2856-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2856-17-0x0000000000220000-0x0000000000266000-memory.dmp

Filesize
280KB

Download
memory/2856-8-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/2856-12-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads