49c41692798ea16926f92fcda831001ffca13416cea288a73e24cac2b05851e9

Analysis

max time kernel
129s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21/08/2024, 11:08

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General

Target

b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe
Size

834KB
MD5

b33a7c6d0a063e6800e26648c44ab2e3
SHA1

dc7d184ba662d39e8d2cb1e107f93110c0dc4543
SHA256

49c41692798ea16926f92fcda831001ffca13416cea288a73e24cac2b05851e9
SHA512

cdd087daf98e0547621fe23efb1ac9c78bbf06c2b64ea8b31c9cc9e7c9d940e104225afb2c360e4c46235b4805f74f7cd64ba135ded1f65fc8a786e1698b7ca6
SSDEEP

24576:ogwQNsiK3X9mTxRymxOZ6Zuo+D1zCREnOOK:ogl63Xyx8mJu1mREnOZ

Score

5^/10

discovery

Malware Config

Signatures

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1676 set thread context of 5092	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	87

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe
File opened for modification	C:\Windows\b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3656	5092	WerFault.exe	87

System Location Discovery: System Language Discovery 1 TTPs 6 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	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 2 IoCs

evasion

pid	Process
2988	taskkill.exe
4148	taskkill.exe

Runs net.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
5112	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe
1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe
Token: SeDebugPrivilege	2988	taskkill.exe
Token: SeDebugPrivilege	4148	taskkill.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1676 wrote to memory of 5092	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	87
PID 1676 wrote to memory of 5092	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	87
PID 1676 wrote to memory of 5092	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	87
PID 1676 wrote to memory of 5092	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	87
PID 1676 wrote to memory of 5092	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	87
PID 1676 wrote to memory of 5092	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	87
PID 1676 wrote to memory of 5092	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	87
PID 1676 wrote to memory of 5092	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	87
PID 1676 wrote to memory of 5092	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	87
PID 1676 wrote to memory of 5092	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	87
PID 1676 wrote to memory of 5092	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	87
PID 1676 wrote to memory of 5092	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	87
PID 1676 wrote to memory of 5092	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	87
PID 1676 wrote to memory of 5112	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	89
PID 1676 wrote to memory of 5112	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	89
PID 1676 wrote to memory of 5112	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	89
PID 1676 wrote to memory of 3768	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	90
PID 1676 wrote to memory of 3768	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	90
PID 1676 wrote to memory of 3768	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	90
PID 1676 wrote to memory of 4148	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	91
PID 1676 wrote to memory of 4148	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	91
PID 1676 wrote to memory of 4148	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	91
PID 1676 wrote to memory of 2988	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	92
PID 1676 wrote to memory of 2988	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	92
PID 1676 wrote to memory of 2988	1676	b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe	92
PID 3768 wrote to memory of 2780	3768	net.exe	99
PID 3768 wrote to memory of 2780	3768	net.exe	99
PID 3768 wrote to memory of 2780	3768	net.exe	99

C:\Users\Admin\AppData\Local\Temp\b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1676
- C:\Users\Admin\AppData\Local\Temp\b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe
  2⤵
  PID:5092
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 12
    3⤵
    - Program crash
    PID:3656
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /RU System /SC ONLOGON /TN BootUpdate /TR C:\Windows\b33a7c6d0a063e6800e26648c44ab2e3_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:5112
- C:\Windows\SysWOW64\net.exe
  net stop WinDefend
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3768
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop WinDefend
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2780
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /t /im MSASCui.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:4148
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /t /im msmpeng.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:2988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5092 -ip 5092
1⤵
PID:4632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1676-0-0x0000000000750000-0x0000000000AF6000-memory.dmp

Filesize
3.6MB

Download
memory/1676-2-0x0000000074DF2000-0x0000000074DF3000-memory.dmp

Filesize
4KB

Download
memory/1676-3-0x0000000074DF0000-0x00000000753A1000-memory.dmp

Filesize
5.7MB

Download
memory/1676-4-0x0000000074DF0000-0x00000000753A1000-memory.dmp

Filesize
5.7MB

Download
memory/1676-9-0x0000000000750000-0x0000000000AF6000-memory.dmp

Filesize
3.6MB

Download
memory/1676-10-0x0000000074DF0000-0x00000000753A1000-memory.dmp

Filesize
5.7MB

Download
memory/5092-5-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download