7996ae64e993f371c7b2915c170dbb4d236f8fe7c091af615de333107a34ff06

General

Target

2cb638bbe1cd5cdc1bb0a497153e3bc1_JaffaCakes118.exe
Size

83KB
MD5

2cb638bbe1cd5cdc1bb0a497153e3bc1
SHA1

7f432fb42ca0881628ec2296d0944717c3796abb
SHA256

7996ae64e993f371c7b2915c170dbb4d236f8fe7c091af615de333107a34ff06
SHA512

4a376b9d5500ffb35cce866ce2bbb72143ae610aa6dae9042365b56463f38093a458f531bf7772576effa23c6a10d71c5f2879b32a7ac085ab5fdd76435b577f
SSDEEP

1536:Ve8k5HYOGfHQ6BHvzq+5hRpfv+7I+vT+eomQxfl04il/wgWLBRX5+9HuLYRgBZ68:/+vT+eFmzitwNL7X5JssWBbPO1

Score

10^/10

discovery evasion persistence

Malware Config

Signatures

Modifies firewall policy service 3 TTPs 8 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	2cb638bbe1cd5cdc1bb0a497153e3bc1_jaffacakes118.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	2cb638bbe1cd5cdc1bb0a497153e3bc1_jaffacakes118.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\Client Server Runtime Process = "C:\\Users\\Admin\\AppData\\Roaming\\csrss.exe"	2cb638bbe1cd5cdc1bb0a497153e3bc1_jaffacakes118.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	csrss.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\Host-process Windows (Rundll32.exe) = "c:\\users\\admin\\appdata\\roaming\\csrss.exe"	csrss.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\Host-process Windows (Rundll32.exe) = "C:\\Users\\Admin\\AppData\\Roaming\\System32\\rundll32.exe"	2cb638bbe1cd5cdc1bb0a497153e3bc1_jaffacakes118.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\Service Host Process for Windows = "C:\\Users\\Admin\\AppData\\Roaming\\System32\\svchost.exe"	2cb638bbe1cd5cdc1bb0a497153e3bc1_jaffacakes118.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	2cb638bbe1cd5cdc1bb0a497153e3bc1_jaffacakes118.exe

Deletes itself 1 IoCs

pid	Process
1252	csrss.exe

Executes dropped EXE 2 IoCs

pid	Process
3844	csrss.exe
1252	csrss.exe

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Host-process Windows (Rundll32.exe) = "C:\\Users\\Admin\\AppData\\Roaming\\System32\\rundll32.exe"	2cb638bbe1cd5cdc1bb0a497153e3bc1_jaffacakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Host-process Windows (Rundll32.exe) = "C:\\Users\\Admin\\AppData\\Roaming\\System32\\rundll32.exe"	2cb638bbe1cd5cdc1bb0a497153e3bc1_jaffacakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Service Host Process for Windows = "C:\\Users\\Admin\\AppData\\Roaming\\System32\\svchost.exe"	2cb638bbe1cd5cdc1bb0a497153e3bc1_jaffacakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Service Host Process for Windows = "C:\\Users\\Admin\\AppData\\Roaming\\System32\\svchost.exe"	2cb638bbe1cd5cdc1bb0a497153e3bc1_jaffacakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Process = "C:\\Users\\Admin\\AppData\\Roaming\\csrss.exe"	2cb638bbe1cd5cdc1bb0a497153e3bc1_jaffacakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Process = "C:\\Users\\Admin\\AppData\\Roaming\\csrss.exe"	2cb638bbe1cd5cdc1bb0a497153e3bc1_jaffacakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Host-process Windows (Rundll32.exe) = "c:\\users\\admin\\appdata\\roaming\\csrss.exe"	csrss.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Host-process Windows (Rundll32.exe) = "c:\\users\\admin\\appdata\\roaming\\csrss.exe"	csrss.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4412 set thread context of 644	4412	2cb638bbe1cd5cdc1bb0a497153e3bc1_JaffaCakes118.exe	83
PID 3844 set thread context of 1252	3844	csrss.exe	86

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	csrss.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrss.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2cb638bbe1cd5cdc1bb0a497153e3bc1_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2cb638bbe1cd5cdc1bb0a497153e3bc1_jaffacakes118.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 644	4412	2cb638bbe1cd5cdc1bb0a497153e3bc1_JaffaCakes118.exe	83
PID 4412 wrote to memory of 644	4412	2cb638bbe1cd5cdc1bb0a497153e3bc1_JaffaCakes118.exe	83
PID 4412 wrote to memory of 644	4412	2cb638bbe1cd5cdc1bb0a497153e3bc1_JaffaCakes118.exe	83
PID 4412 wrote to memory of 644	4412	2cb638bbe1cd5cdc1bb0a497153e3bc1_JaffaCakes118.exe	83
PID 4412 wrote to memory of 644	4412	2cb638bbe1cd5cdc1bb0a497153e3bc1_JaffaCakes118.exe	83
PID 4412 wrote to memory of 644	4412	2cb638bbe1cd5cdc1bb0a497153e3bc1_JaffaCakes118.exe	83
PID 4412 wrote to memory of 644	4412	2cb638bbe1cd5cdc1bb0a497153e3bc1_JaffaCakes118.exe	83
PID 4412 wrote to memory of 644	4412	2cb638bbe1cd5cdc1bb0a497153e3bc1_JaffaCakes118.exe	83
PID 4412 wrote to memory of 644	4412	2cb638bbe1cd5cdc1bb0a497153e3bc1_JaffaCakes118.exe	83
PID 644 wrote to memory of 3844	644	2cb638bbe1cd5cdc1bb0a497153e3bc1_jaffacakes118.exe	85
PID 644 wrote to memory of 3844	644	2cb638bbe1cd5cdc1bb0a497153e3bc1_jaffacakes118.exe	85
PID 644 wrote to memory of 3844	644	2cb638bbe1cd5cdc1bb0a497153e3bc1_jaffacakes118.exe	85
PID 3844 wrote to memory of 1252	3844	csrss.exe	86
PID 3844 wrote to memory of 1252	3844	csrss.exe	86
PID 3844 wrote to memory of 1252	3844	csrss.exe	86
PID 3844 wrote to memory of 1252	3844	csrss.exe	86
PID 3844 wrote to memory of 1252	3844	csrss.exe	86
PID 3844 wrote to memory of 1252	3844	csrss.exe	86
PID 3844 wrote to memory of 1252	3844	csrss.exe	86
PID 3844 wrote to memory of 1252	3844	csrss.exe	86
PID 3844 wrote to memory of 1252	3844	csrss.exe	86

C:\Users\Admin\AppData\Local\Temp\2cb638bbe1cd5cdc1bb0a497153e3bc1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2cb638bbe1cd5cdc1bb0a497153e3bc1_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4412
- \??\c:\users\admin\appdata\local\temp\2cb638bbe1cd5cdc1bb0a497153e3bc1_jaffacakes118.exe
  "c:\users\admin\appdata\local\temp\2cb638bbe1cd5cdc1bb0a497153e3bc1_jaffacakes118.exe"
  2⤵
  - Modifies firewall policy service
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:644
- - C:\Users\Admin\AppData\Roaming\csrss.exe
    C:\Users\Admin\AppData\Roaming\csrss.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3844
  - - \??\c:\users\admin\appdata\roaming\csrss.exe
      "c:\users\admin\appdata\roaming\csrss.exe"
      4⤵
      Modifies firewall policy service
      Deletes itself
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:1252

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:\Users\Admin\AppData\Roaming\csrss.exe

Filesize
83KB

MD5
2cb638bbe1cd5cdc1bb0a497153e3bc1

SHA1
7f432fb42ca0881628ec2296d0944717c3796abb

SHA256
7996ae64e993f371c7b2915c170dbb4d236f8fe7c091af615de333107a34ff06

SHA512
4a376b9d5500ffb35cce866ce2bbb72143ae610aa6dae9042365b56463f38093a458f531bf7772576effa23c6a10d71c5f2879b32a7ac085ab5fdd76435b577f

Download Submit
memory/644-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/644-2-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/644-3-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/644-22-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1252-13-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1252-15-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1252-25-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1252-31-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads