bb7e38cf0fffad588eaa3c5dedb1d397563d98eb0ada63efe8915e177bce6d74

General

Target

039778726d7389a0631934261e682504_JaffaCakes118.exe
Size

180KB
MD5

039778726d7389a0631934261e682504
SHA1

f44a1a0b2948e0e13d58f63228056072fa3e756c
SHA256

bb7e38cf0fffad588eaa3c5dedb1d397563d98eb0ada63efe8915e177bce6d74
SHA512

7f587b70c3ac2a288b21167cd071bc9271976c4eb40ac43097b4cd5ea5b337cec36bcf5570eb78d4ceab53d2901b996fc0dc546ccfcc3f2088a012e1fe1c1c27
SSDEEP

3072:2JbpHsK6c0lFY+pjYt/hbjakh+exzoBbh:2Jbps7lYtJh+exo

Score

10^/10

discovery evasion persistence privilege_escalation upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe \"C:\\Users\\Admin\\AppData\\Roaming\\winlogon.exe\""	039778726d7389a0631934261e682504_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe \"C:\\Users\\Admin\\AppData\\Roaming\\winlogon.exe\""	winlogon.exe

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2684	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
2604	winlogon.exe
2732	winlogon.exe

Loads dropped DLL 3 IoCs

pid	Process
2312	039778726d7389a0631934261e682504_JaffaCakes118.exe
2312	039778726d7389a0631934261e682504_JaffaCakes118.exe
2604	winlogon.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSWUpdate = "\"C:\\Users\\Admin\\AppData\\Roaming\\winlogon.exe\""	winlogon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\MSWUpdate = "\"C:\\Users\\Admin\\AppData\\Roaming\\winlogon.exe\""	winlogon.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSWUpdate = "\"C:\\Users\\Admin\\AppData\\Roaming\\winlogon.exe\""	039778726d7389a0631934261e682504_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\MSWUpdate = "\"C:\\Users\\Admin\\AppData\\Roaming\\winlogon.exe\""	039778726d7389a0631934261e682504_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3032 set thread context of 2312	3032	039778726d7389a0631934261e682504_JaffaCakes118.exe	31
PID 2604 set thread context of 2732	2604	winlogon.exe	36

UPX packed file 16 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2312-14-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/2312-17-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/2312-13-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/2312-12-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/2312-10-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/2312-6-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/2312-4-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/2312-52-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/2732-70-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/2732-69-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/2732-71-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/2732-72-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/2732-74-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/2732-77-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/2732-80-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/2732-83-0x0000000000400000-0x0000000000425000-memory.dmp	upx

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	039778726d7389a0631934261e682504_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	039778726d7389a0631934261e682504_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winlogon.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winlogon.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3032	039778726d7389a0631934261e682504_JaffaCakes118.exe
2312	039778726d7389a0631934261e682504_JaffaCakes118.exe
2604	winlogon.exe
2732	winlogon.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3032 wrote to memory of 2312	3032	039778726d7389a0631934261e682504_JaffaCakes118.exe	31
PID 3032 wrote to memory of 2312	3032	039778726d7389a0631934261e682504_JaffaCakes118.exe	31
PID 3032 wrote to memory of 2312	3032	039778726d7389a0631934261e682504_JaffaCakes118.exe	31
PID 3032 wrote to memory of 2312	3032	039778726d7389a0631934261e682504_JaffaCakes118.exe	31
PID 3032 wrote to memory of 2312	3032	039778726d7389a0631934261e682504_JaffaCakes118.exe	31
PID 3032 wrote to memory of 2312	3032	039778726d7389a0631934261e682504_JaffaCakes118.exe	31
PID 3032 wrote to memory of 2312	3032	039778726d7389a0631934261e682504_JaffaCakes118.exe	31
PID 3032 wrote to memory of 2312	3032	039778726d7389a0631934261e682504_JaffaCakes118.exe	31
PID 2312 wrote to memory of 2684	2312	039778726d7389a0631934261e682504_JaffaCakes118.exe	33
PID 2312 wrote to memory of 2684	2312	039778726d7389a0631934261e682504_JaffaCakes118.exe	33
PID 2312 wrote to memory of 2684	2312	039778726d7389a0631934261e682504_JaffaCakes118.exe	33
PID 2312 wrote to memory of 2684	2312	039778726d7389a0631934261e682504_JaffaCakes118.exe	33
PID 2312 wrote to memory of 2604	2312	039778726d7389a0631934261e682504_JaffaCakes118.exe	35
PID 2312 wrote to memory of 2604	2312	039778726d7389a0631934261e682504_JaffaCakes118.exe	35
PID 2312 wrote to memory of 2604	2312	039778726d7389a0631934261e682504_JaffaCakes118.exe	35
PID 2312 wrote to memory of 2604	2312	039778726d7389a0631934261e682504_JaffaCakes118.exe	35
PID 2604 wrote to memory of 2732	2604	winlogon.exe	36
PID 2604 wrote to memory of 2732	2604	winlogon.exe	36
PID 2604 wrote to memory of 2732	2604	winlogon.exe	36
PID 2604 wrote to memory of 2732	2604	winlogon.exe	36
PID 2604 wrote to memory of 2732	2604	winlogon.exe	36
PID 2604 wrote to memory of 2732	2604	winlogon.exe	36
PID 2604 wrote to memory of 2732	2604	winlogon.exe	36
PID 2604 wrote to memory of 2732	2604	winlogon.exe	36

C:\Users\Admin\AppData\Local\Temp\039778726d7389a0631934261e682504_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\039778726d7389a0631934261e682504_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3032
- C:\Users\Admin\AppData\Local\Temp\039778726d7389a0631934261e682504_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\039778726d7389a0631934261e682504_JaffaCakes118.exe
  2⤵
  - Modifies WinLogon for persistence
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2312
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\winlogon.exe" CityScape Enable
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2684
- - C:\Users\Admin\AppData\Roaming\winlogon.exe
    /d C:\Users\Admin\AppData\Local\Temp\039778726d7389a0631934261e682504_JaffaCakes118.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:2604
  - - C:\Users\Admin\AppData\Roaming\winlogon.exe
      C:\Users\Admin\AppData\Roaming\winlogon.exe
      4⤵
      Modifies WinLogon for persistence
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious use of SetWindowsHookEx
      PID:2732

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

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

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\winlogon.exe

Filesize
180KB

MD5
9ac53e4116bb6aa82647cabd17f95550

SHA1
1c6eed08da4345f01f433ba7fbdf535095d0d62d

SHA256
125ce54a04d3342790afda681fcc0ad3968c25b1c5c159ec9c99c2ec12e9b5bf

SHA512
a32325ddc0b0c574ec92340219a2474f1d6181a8a803dcadb0311549e6387a6766c94a352b6673535b6d128fe50b3c35b3804d01b7b86bd82d54f18eee42cdda

Download Submit
memory/2312-2-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2312-52-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2312-12-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2312-10-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2312-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2312-6-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2312-4-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2312-14-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2312-13-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2312-17-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2732-70-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2732-69-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2732-71-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2732-72-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2732-74-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2732-77-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2732-80-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2732-83-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads