ba9b17b79e3243b93e10d09d505ac91f6f1aa18f280a067577a79a0fdbe5f46a

General

Target

a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe
Size

60KB
MD5

a5bf8044668d26ef66ff14c3b0457542
SHA1

1d2390abd2bb5e22392ba08214408d5e7b5f70e0
SHA256

ba9b17b79e3243b93e10d09d505ac91f6f1aa18f280a067577a79a0fdbe5f46a
SHA512

e39f39d9e11e9fa23f22ce137beab6f681115b82517f52ff896d29df5fb0a59b84a5452de271e8f6aac1ae045007ce4eb89906322e59adc6e8d5708928aca1ef
SSDEEP

1536:giM2dKtmGo4ZJoFo0+W0bWcBa+Jsy5hT3ZyuI2Fl1:giygGoQ1036BNJjz3ZyuVp

Score

10^/10

discovery persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe"	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2104-0-0x0000000000400000-0x000000000043C000-memory.dmp	upx
behavioral1/memory/2104-8-0x0000000000400000-0x000000000043C000-memory.dmp	upx

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-1-5-21-2958949473-3205530200-1453100116-1000\Software\Microsoft\Windows\CurrentVersion\Run\She11 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe"	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2104 set thread context of 1604	2104	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe	30

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	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2460	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2460	taskkill.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2104	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 1604	2104	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe	30
PID 2104 wrote to memory of 1604	2104	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe	30
PID 2104 wrote to memory of 1604	2104	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe	30
PID 2104 wrote to memory of 1604	2104	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe	30
PID 2104 wrote to memory of 1604	2104	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe	30
PID 2104 wrote to memory of 1604	2104	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe	30
PID 2104 wrote to memory of 1604	2104	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe	30
PID 2104 wrote to memory of 1604	2104	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe	30
PID 2104 wrote to memory of 1604	2104	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe	30
PID 2104 wrote to memory of 1604	2104	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe	30
PID 2104 wrote to memory of 1604	2104	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe	30
PID 2104 wrote to memory of 1604	2104	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe	30
PID 2104 wrote to memory of 1604	2104	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe	30
PID 2104 wrote to memory of 1604	2104	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe	30
PID 1604 wrote to memory of 2460	1604	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe	31
PID 1604 wrote to memory of 2460	1604	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe	31
PID 1604 wrote to memory of 2460	1604	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe	31
PID 1604 wrote to memory of 2460	1604	a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Users\Admin\AppData\Local\Temp\a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\a5bf8044668d26ef66ff14c3b0457542_JaffaCakes118.exe
  2⤵
  - Modifies WinLogon for persistence
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1604
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /F /IM explorer.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2460

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

2

T1112

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

memory/1604-4-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1604-5-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1604-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1604-9-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1604-10-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2104-0-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2104-3-0x0000000000270000-0x00000000002AC000-memory.dmp

Filesize
240KB

Download
memory/2104-8-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads