506342243db5998de802937dd8a1a0ce63bd4822703150a36469c8f22f55060c

General

Target

ebb6eedcb868b4940409ec48e73688b3_JaffaCakes118.exe
Size

111KB
MD5

ebb6eedcb868b4940409ec48e73688b3
SHA1

9e5b7f1c4ba3eba88dd307e46af1d084cf5f8b03
SHA256

506342243db5998de802937dd8a1a0ce63bd4822703150a36469c8f22f55060c
SHA512

250773f7fc4745130de22e80b5c00102df81e7eb810d76c928af74dafcef315de7669f33095f5c36c8257ad43bffdc9f331ce105b229a4f7bfb2fbd963811f08
SSDEEP

3072:BmLm2L1szSZx3Y9+Up1LVGOEWLZbfMiqFflMs4h:BmvLGG3YwUpkWNXqtl6h

Score

8^/10

discovery evasion persistence privilege_escalation

Malware Config

Signatures

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1356	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
4024	msserv.exe

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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\msserv = "C:\\Windows\\msserv.exe"	ebb6eedcb868b4940409ec48e73688b3_JaffaCakes118.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\7-Zip\	msserv.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\	msserv.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\msserv.config	msserv.exe
File opened for modification	C:\Windows\msserv.config	msserv.exe
File created	C:\Windows\msserv.exe	ebb6eedcb868b4940409ec48e73688b3_JaffaCakes118.exe
File opened for modification	C:\Windows\msserv.exe	ebb6eedcb868b4940409ec48e73688b3_JaffaCakes118.exe

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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	ebb6eedcb868b4940409ec48e73688b3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msserv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	w32tm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	w32tm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4120 wrote to memory of 4024	4120	ebb6eedcb868b4940409ec48e73688b3_JaffaCakes118.exe	82
PID 4120 wrote to memory of 4024	4120	ebb6eedcb868b4940409ec48e73688b3_JaffaCakes118.exe	82
PID 4120 wrote to memory of 4024	4120	ebb6eedcb868b4940409ec48e73688b3_JaffaCakes118.exe	82
PID 4024 wrote to memory of 1356	4024	msserv.exe	83
PID 4024 wrote to memory of 1356	4024	msserv.exe	83
PID 4024 wrote to memory of 1356	4024	msserv.exe	83
PID 4024 wrote to memory of 5064	4024	msserv.exe	84
PID 4024 wrote to memory of 5064	4024	msserv.exe	84
PID 4024 wrote to memory of 5064	4024	msserv.exe	84
PID 4024 wrote to memory of 4276	4024	msserv.exe	85
PID 4024 wrote to memory of 4276	4024	msserv.exe	85
PID 4024 wrote to memory of 4276	4024	msserv.exe	85
PID 4276 wrote to memory of 3932	4276	w32tm.exe	89
PID 4276 wrote to memory of 3932	4276	w32tm.exe	89
PID 5064 wrote to memory of 3764	5064	w32tm.exe	90
PID 5064 wrote to memory of 3764	5064	w32tm.exe	90

C:\Users\Admin\AppData\Local\Temp\ebb6eedcb868b4940409ec48e73688b3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ebb6eedcb868b4940409ec48e73688b3_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4120
- C:\Windows\msserv.exe
  "C:\Windows\msserv.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4024
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall set allowedprogram "C:\Windows\msserv.exe" enable
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1356
- - C:\Windows\SysWOW64\w32tm.exe
    w32tm /config /syncfromflags:manual /manualpeerlist:time.windows.com,time.nist.gov
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5064
  - - C:\Windows\system32\w32tm.exe
      w32tm /config /syncfromflags:manual /manualpeerlist:time.windows.com,time.nist.gov
      4⤵
      PID:3764
- - C:\Windows\SysWOW64\w32tm.exe
    w32tm /config /update
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4276
  - - C:\Windows\system32\w32tm.exe
      w32tm /config /update
      4⤵
      PID:3932

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

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

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

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:\Windows\msserv.config

Filesize
7KB

MD5
b4032a38f7585a2d8296fa6f7d4244a0

SHA1
6a91e1bf50f47a65c808d4959749308bfdd2115f

SHA256
34111fe40190ded2e27dbb684602cd6ec12716cfcff343006e5a5ddc0919de26

SHA512
4a136cc37bb1d09023a02d6054dcde4c3aea9adb6bf65d80b1a2a012cc67205fd521677c8acba99835b7d81272964642270f97a905b6897e4296bcb416275f27

Download Submit
C:\Windows\msserv.config

Filesize
13KB

MD5
f6e76f6be8d6a7da357713086c105d1e

SHA1
d30219d54bc3f741c1e2dbd8666bc5177146c8a3

SHA256
96906f91935b27ad870ffcb740aea962c232718417cffd3a4411967a9f3a3b89

SHA512
f4d1aac4ce3ccfbf6dcab6471ec493b5cb696e25bf64f3377770bba689e7b8ff1b7e8afa0c23feaae11a4378eaf68e78215d01244c3e658c0d52caf010ae9f7f

Download Submit
C:\Windows\msserv.exe

Filesize
111KB

MD5
ebb6eedcb868b4940409ec48e73688b3

SHA1
9e5b7f1c4ba3eba88dd307e46af1d084cf5f8b03

SHA256
506342243db5998de802937dd8a1a0ce63bd4822703150a36469c8f22f55060c

SHA512
250773f7fc4745130de22e80b5c00102df81e7eb810d76c928af74dafcef315de7669f33095f5c36c8257ad43bffdc9f331ce105b229a4f7bfb2fbd963811f08

Download Submit
memory/4024-280-0x0000000000470000-0x00000000004A0000-memory.dmp

Filesize
192KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads