f35b80e3a3ebd7a1e27399c4dae251f42d2e4069dbfd8e5120c2777c02ca93d6

General

Target

75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe
Size

779KB
MD5

75377a9800fce2593e5a6f8ae7a2249f
SHA1

772e6044bc351f8199621e5bc198515eff240c0d
SHA256

f35b80e3a3ebd7a1e27399c4dae251f42d2e4069dbfd8e5120c2777c02ca93d6
SHA512

571993ca800260766dd6191134e8887c156761cf3ae126fa56952cb003e5245d157b9f08e1e63ac453a49e90f6e25e9481ff2c192a3d2a0fa3b79ebe92c34399
SSDEEP

24576:ApI9LjqsE5wHnDUpOCvHIX4ExyHD0jwV0Uq5+:MWjvE+HnDkxvHNEQHD0jwV09c

Score

10^/10

discovery evasion persistence upx

Malware Config

Signatures

Modifies firewall policy service 3 TTPs 4 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\sysdiag.exe = "C:\\windows\\sysdiag.exe"	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
724	sysdiag.exe
4940	sysdiag.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4148-0-0x0000000000400000-0x00000000004C4000-memory.dmp	upx
behavioral2/memory/4148-6-0x0000000000400000-0x00000000004C4000-memory.dmp	upx
behavioral2/files/0x0002000000022ab7-11.dat	upx
behavioral2/memory/724-23-0x0000000000400000-0x00000000004C4000-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\USER\S-1-5-21-1176886754-713327781-2233697964-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\sysdiag.exe = "C:\\windows\\sysdiag.exe"	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\sysdiag.exe = "C:\\windows\\sysdiag.exe"	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4148 set thread context of 2176	4148	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe	87
PID 724 set thread context of 4940	724	sysdiag.exe	89

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\windows\sysdiag.exe	sysdiag.exe
File created	C:\windows\sysdiag.exe	sysdiag.exe
File created	C:\windows\sysdiag.exe	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe
File opened for modification	C:\windows\sysdiag.exe	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sysdiag.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4148	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe
724	sysdiag.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4148 wrote to memory of 2176	4148	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe	87
PID 4148 wrote to memory of 2176	4148	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe	87
PID 4148 wrote to memory of 2176	4148	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe	87
PID 4148 wrote to memory of 2176	4148	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe	87
PID 4148 wrote to memory of 2176	4148	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe	87
PID 4148 wrote to memory of 2176	4148	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe	87
PID 4148 wrote to memory of 2176	4148	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe	87
PID 4148 wrote to memory of 2176	4148	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe	87
PID 2176 wrote to memory of 724	2176	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe	88
PID 2176 wrote to memory of 724	2176	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe	88
PID 2176 wrote to memory of 724	2176	75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe	88
PID 724 wrote to memory of 4940	724	sysdiag.exe	89
PID 724 wrote to memory of 4940	724	sysdiag.exe	89
PID 724 wrote to memory of 4940	724	sysdiag.exe	89
PID 724 wrote to memory of 4940	724	sysdiag.exe	89
PID 724 wrote to memory of 4940	724	sysdiag.exe	89
PID 724 wrote to memory of 4940	724	sysdiag.exe	89
PID 724 wrote to memory of 4940	724	sysdiag.exe	89
PID 724 wrote to memory of 4940	724	sysdiag.exe	89

C:\Users\Admin\AppData\Local\Temp\75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4148
- C:\Users\Admin\AppData\Local\Temp\75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\75377a9800fce2593e5a6f8ae7a2249f_JaffaCakes118.exe"
  2⤵
  - Modifies firewall policy service
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2176
- - C:\windows\sysdiag.exe
    "C:\windows\sysdiag.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:724
  - - C:\windows\sysdiag.exe
      "C:\windows\sysdiag.exe"
      4⤵
      Executes dropped EXE
      Drops file in Windows directory
      PID:4940

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

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\sysdiag.exe

Filesize
779KB

MD5
75377a9800fce2593e5a6f8ae7a2249f

SHA1
772e6044bc351f8199621e5bc198515eff240c0d

SHA256
f35b80e3a3ebd7a1e27399c4dae251f42d2e4069dbfd8e5120c2777c02ca93d6

SHA512
571993ca800260766dd6191134e8887c156761cf3ae126fa56952cb003e5245d157b9f08e1e63ac453a49e90f6e25e9481ff2c192a3d2a0fa3b79ebe92c34399

Download Submit
memory/724-23-0x0000000000400000-0x00000000004C4000-memory.dmp

Filesize
784KB

Download
memory/2176-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2176-5-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2176-7-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2176-17-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4148-6-0x0000000000400000-0x00000000004C4000-memory.dmp

Filesize
784KB

Download
memory/4148-0-0x0000000000400000-0x00000000004C4000-memory.dmp

Filesize
784KB

Download
memory/4940-28-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4940-33-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4940-24-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4940-27-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4940-21-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4940-29-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4940-30-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4940-31-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4940-32-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4940-22-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4940-34-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4940-35-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4940-36-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4940-37-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4940-38-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4940-39-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4940-40-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads