3be280337aae9309e2605469dbf49bb6d5e337969e2cc4cfbfb0e5ca9bfc5ff4

General

Target

a0cb8cc72d1ed62deca800a1c67e27a7_JaffaCakes118.exe
Size

221KB
MD5

a0cb8cc72d1ed62deca800a1c67e27a7
SHA1

c9b5729c5767be44e2d20afbf19024e658c7d426
SHA256

3be280337aae9309e2605469dbf49bb6d5e337969e2cc4cfbfb0e5ca9bfc5ff4
SHA512

6f9653350fcf6c743ff9c77e9c205571ccdb21fbeb1dbfaa6e59a4739aa07cbd73aeacb621a81dc4711c062fc4479cdc4b0ebf009d2f7fc361f77b1064dfdf11
SSDEEP

6144:slOgP/IqPDwJwW/EdBUByinHIPUMIVHoYlkMj:sHIWDU/YUBythwHoY+M

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\\csrss.exe\""	in.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe \"C:\\Users\\Admin\\AppData\\Roaming\\csrss.exe\""	csrss.exe

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2840	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
3008	in.exe
1724	csrss.exe

Loads dropped DLL 4 IoCs

pid	Process
2372	vbc.exe
2372	vbc.exe
3008	in.exe
3008	in.exe

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0008000000016dbd-15.dat	upx
behavioral1/memory/3008-23-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/files/0x000a00000001752b-48.dat	upx
behavioral1/memory/3008-58-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/1724-56-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/1724-61-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/1724-62-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/1724-63-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/1724-64-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/1724-65-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/1724-66-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/1724-67-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/1724-68-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/1724-70-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/1724-71-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/1724-72-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/1724-73-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/1724-74-0x0000000000400000-0x0000000000425000-memory.dmp	upx
behavioral1/memory/1724-75-0x0000000000400000-0x0000000000425000-memory.dmp	upx

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Adds Run key to start application 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlogon = "C:\\Users\\Admin\\AppData\\Roaming\\boot.exe"	a0cb8cc72d1ed62deca800a1c67e27a7_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSWUpdate = "\"C:\\Users\\Admin\\AppData\\Roaming\\csrss.exe\""	in.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\MSWUpdate = "\"C:\\Users\\Admin\\AppData\\Roaming\\csrss.exe\""	in.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSWUpdate = "\"C:\\Users\\Admin\\AppData\\Roaming\\csrss.exe\""	csrss.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\MSWUpdate = "\"C:\\Users\\Admin\\AppData\\Roaming\\csrss.exe\""	csrss.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2124 set thread context of 2372	2124	a0cb8cc72d1ed62deca800a1c67e27a7_JaffaCakes118.exe	30

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	in.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrss.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a0cb8cc72d1ed62deca800a1c67e27a7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3008	in.exe
1724	csrss.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 2372	2124	a0cb8cc72d1ed62deca800a1c67e27a7_JaffaCakes118.exe	30
PID 2124 wrote to memory of 2372	2124	a0cb8cc72d1ed62deca800a1c67e27a7_JaffaCakes118.exe	30
PID 2124 wrote to memory of 2372	2124	a0cb8cc72d1ed62deca800a1c67e27a7_JaffaCakes118.exe	30
PID 2124 wrote to memory of 2372	2124	a0cb8cc72d1ed62deca800a1c67e27a7_JaffaCakes118.exe	30
PID 2124 wrote to memory of 2372	2124	a0cb8cc72d1ed62deca800a1c67e27a7_JaffaCakes118.exe	30
PID 2124 wrote to memory of 2372	2124	a0cb8cc72d1ed62deca800a1c67e27a7_JaffaCakes118.exe	30
PID 2124 wrote to memory of 2372	2124	a0cb8cc72d1ed62deca800a1c67e27a7_JaffaCakes118.exe	30
PID 2124 wrote to memory of 2372	2124	a0cb8cc72d1ed62deca800a1c67e27a7_JaffaCakes118.exe	30
PID 2124 wrote to memory of 2372	2124	a0cb8cc72d1ed62deca800a1c67e27a7_JaffaCakes118.exe	30
PID 2124 wrote to memory of 2372	2124	a0cb8cc72d1ed62deca800a1c67e27a7_JaffaCakes118.exe	30
PID 2372 wrote to memory of 3008	2372	vbc.exe	31
PID 2372 wrote to memory of 3008	2372	vbc.exe	31
PID 2372 wrote to memory of 3008	2372	vbc.exe	31
PID 2372 wrote to memory of 3008	2372	vbc.exe	31
PID 3008 wrote to memory of 2840	3008	in.exe	33
PID 3008 wrote to memory of 2840	3008	in.exe	33
PID 3008 wrote to memory of 2840	3008	in.exe	33
PID 3008 wrote to memory of 2840	3008	in.exe	33
PID 3008 wrote to memory of 1724	3008	in.exe	35
PID 3008 wrote to memory of 1724	3008	in.exe	35
PID 3008 wrote to memory of 1724	3008	in.exe	35
PID 3008 wrote to memory of 1724	3008	in.exe	35

C:\Users\Admin\AppData\Local\Temp\a0cb8cc72d1ed62deca800a1c67e27a7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a0cb8cc72d1ed62deca800a1c67e27a7_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2372
- - C:\Users\Admin\AppData\Local\Temp\in.exe
    "C:\Users\Admin\AppData\Local\Temp\in.exe"
    3⤵
    - Modifies WinLogon for persistence
    - Executes dropped EXE
    - Loads dropped DLL
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3008
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\csrss.exe" CityScape Enable
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:2840
  - - C:\Users\Admin\AppData\Roaming\csrss.exe
      /d C:\Users\Admin\AppData\Local\Temp\in.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:1724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

1

T1064

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

Scripting

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\in.exe

Filesize
39KB

MD5
bf5281e799567f07c649dec2489c62a3

SHA1
48ec1c61d451f07141e9417d809f0de246e493c9

SHA256
621e681661656aa4d3665d5e85bd60e7d97efbbd850e0754b8d91ad80f6c5e46

SHA512
6373ade7a5d8382461b84b6d63f1fae9c78e84613cda802a37f54fb480160912cecdc2f9c4336ee61b721f63e94445328e8d1fb3d315d7ad5a9fec9be17d671c

Download Submit
\Users\Admin\AppData\Roaming\csrss.exe

Filesize
39KB

MD5
f419207a1703bf718556d735ee277ef6

SHA1
cecacabdaad751d217bc1316ff56e18b5444c324

SHA256
f02e44cbdf4cc4c8bb86a27f69df416bb495f7e37c9b3107dc276815b4957724

SHA512
0b6cbe6bdb9b8fce7a93813a90791fce3253a384b4ae196dc3bbb81c2b200f56343a013b3e7463f8d2a31e749d2a32bddddac1007f2d72413f6857707f2bfa16

Download Submit
memory/1724-65-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1724-70-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1724-75-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1724-74-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1724-73-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1724-72-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1724-71-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1724-62-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1724-68-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1724-67-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1724-66-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1724-61-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1724-64-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1724-56-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1724-63-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2124-0-0x0000000074D61000-0x0000000074D62000-memory.dmp

Filesize
4KB

Download
memory/2124-2-0x0000000074D60000-0x000000007530B000-memory.dmp

Filesize
5.7MB

Download
memory/2124-7-0x0000000074D60000-0x000000007530B000-memory.dmp

Filesize
5.7MB

Download
memory/2124-1-0x0000000074D60000-0x000000007530B000-memory.dmp

Filesize
5.7MB

Download
memory/2372-17-0x0000000002C40000-0x0000000002C65000-memory.dmp

Filesize
148KB

Download
memory/2372-18-0x0000000002C40000-0x0000000002C65000-memory.dmp

Filesize
148KB

Download
memory/2372-20-0x0000000000430000-0x0000000000496000-memory.dmp

Filesize
408KB

Download
memory/2372-22-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2372-6-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2372-8-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2372-4-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/3008-58-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/3008-23-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/3008-55-0x0000000003460000-0x0000000003485000-memory.dmp

Filesize
148KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads