ede80954aa264e7f1fb365b2d83e8d211c6a79e95bdca110aeaef84c696635db

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
07/04/2024, 21:08

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General

Target
e5dc89fac88ab5031664ea0848c59b93_JaffaCakes118.exe
Size 562KB
Sample240407-zy939aee6s
SHA256 ede80954aa264e7f1fb365b2d83e8d211c6a79e95bdca110aeaef84c696635db
MD5 e5dc89fac88ab5031664ea0848c59b93
SHA1 ad4f30f3a790be3f3c769c967aca58b6aa62edb0
SHA512 605f1ee070aa0740ab789e74940e4d5ec119fabe2c6cd841db3b1580d88778639224b9b4b82bd2c36c431758305c8529346d5cff347ea1a61b0cd098fabbf5ae
SSDEEP 12288:/4knqxpS/CP8LVrUbbv0j0auS15+Q29er6ZM7oG1:TnvCPaUiES1XIfZK1
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2620	Application Updater.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\USER\S-1-5-21-399997616-3400990511-967324271-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1My = "C:\\Users\\Admin\\AppData\\Roaming\\e5dc89fac88ab5031664ea0848c59b93_JaffaCakes118.exe"	e5dc89fac88ab5031664ea0848c59b93_JaffaCakes118.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
940	e5dc89fac88ab5031664ea0848c59b93_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	940	e5dc89fac88ab5031664ea0848c59b93_JaffaCakes118.exe
Token: SeRestorePrivilege	4900	dw20.exe
Token: SeBackupPrivilege	4900	dw20.exe
Token: SeBackupPrivilege	4900	dw20.exe
Token: SeBackupPrivilege	4900	dw20.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 940 wrote to memory of 4900	940	e5dc89fac88ab5031664ea0848c59b93_JaffaCakes118.exe	88
PID 940 wrote to memory of 4900	940	e5dc89fac88ab5031664ea0848c59b93_JaffaCakes118.exe	88
PID 940 wrote to memory of 4900	940	e5dc89fac88ab5031664ea0848c59b93_JaffaCakes118.exe	88
PID 940 wrote to memory of 2620	940	e5dc89fac88ab5031664ea0848c59b93_JaffaCakes118.exe	90
PID 940 wrote to memory of 2620	940	e5dc89fac88ab5031664ea0848c59b93_JaffaCakes118.exe	90

C:\Users\Admin\AppData\Local\Temp\e5dc89fac88ab5031664ea0848c59b93_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e5dc89fac88ab5031664ea0848c59b93_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:940
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
  dw20.exe -x -s 1576
  2⤵
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:4900
- C:\Users\Admin\AppData\Roaming\Application Updater.exe
  "C:\Users\Admin\AppData\Roaming\Application Updater.exe"
  2⤵
  - Executes dropped EXE
  PID:2620

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Application Updater.exe

Path C:\Users\Admin\AppData\Roaming\Application Updater.exe
Size 3KB
SHA256 f7a6179db2054de171a9b445e0d45c74b9836eb881f413c4418c117e202f2b6c
MD5 e30c847cf18a0c965e591fddad62a9cf
SHA1 699f9dffe24e53cc0d128c32c60d830ac012212a
SHA512 41a3b41f70bb0d34c676b58e232b1b1bc97cf37e6a58fa18c75213b69af163a4ffcd7a8ed49baed020d07b64e8cc0f45a9a2a843ef3061ec9b5544218dc40f44
MD5 SHA1 SHA512

Submit Download

memory/940-0-0x00000000751B0000-0x0000000075761000-memory.dmp

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memory/940-2-0x0000000000E00000-0x0000000000E10000-memory.dmp

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memory/940-1-0x00000000751B0000-0x0000000075761000-memory.dmp

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memory/940-5-0x0000000000E00000-0x0000000000E10000-memory.dmp

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memory/940-20-0x00000000751B0000-0x0000000075761000-memory.dmp

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memory/2620-15-0x00007FFDEB2E0000-0x00007FFDEBC81000-memory.dmp

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memory/2620-17-0x00007FFDEB2E0000-0x00007FFDEBC81000-memory.dmp

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memory/2620-16-0x0000000000B20000-0x0000000000B30000-memory.dmp

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