b37e3504da65fc24208c9aea7fd77972b6db04e0c5d47a3648126276a5723c29

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06-10-2024 13:20

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

1842853c17f31d16174eb049e70772ee_JaffaCakes118.exe
Size

38KB
MD5

1842853c17f31d16174eb049e70772ee
SHA1

a8780e924e15143ac13f5e645ad9045c6e4030a7
SHA256

b37e3504da65fc24208c9aea7fd77972b6db04e0c5d47a3648126276a5723c29
SHA512

d2fa6286152ccc50589584b930adb6470dcaa1552958e7f73f8c60b310c09bb2e4dfb00d84557c074ddede755d3648160bc3b09ef794b9837ddcf4487ce3e7ea
SSDEEP

768:PqsAGZzLbWovWLWzCCGb14A0Qi3SPBNq9h39Ewj+2:VAG9nWak130v3ONGhtEwj1

Score

8^/10

defense_evasion discovery persistence upx

Malware Config

Signatures

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\MediaCenter\Parameters\ServiceDll = "C:\\Windows\\system32\\\\Promdne.src"	1842853c17f31d16174eb049e70772ee_JaffaCakes118.exe

Loads dropped DLL 2 IoCs

pid	Process
4072	1842853c17f31d16174eb049e70772ee_JaffaCakes118.exe
2892	svchost.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Promdne.src	1842853c17f31d16174eb049e70772ee_JaffaCakes118.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4072-0-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral2/memory/4072-10-0x0000000000400000-0x0000000000418000-memory.dmp	upx

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1842853c17f31d16174eb049e70772ee_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4072	1842853c17f31d16174eb049e70772ee_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4072 wrote to memory of 1640	4072	1842853c17f31d16174eb049e70772ee_JaffaCakes118.exe	84
PID 4072 wrote to memory of 1640	4072	1842853c17f31d16174eb049e70772ee_JaffaCakes118.exe	84
PID 4072 wrote to memory of 1640	4072	1842853c17f31d16174eb049e70772ee_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\1842853c17f31d16174eb049e70772ee_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1842853c17f31d16174eb049e70772ee_JaffaCakes118.exe"
1⤵
- Server Software Component: Terminal Services DLL
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4072
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\184285~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1640

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k krnlsrvc
1⤵
PID:5116

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k krnlsrvc
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:2892

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Server Software Component

T1505

Terminal Services DLL

T1505.005

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\Promdne.src

Filesize
20.1MB

MD5
02bdc7fab508b9bd2a1ea8bbe653c683

SHA1
c6599a973a7ee8a089496bf3d70936a72777a129

SHA256
7275453cacdfb4f63a96ddb651537f0adb5f6ca679ce31e3cf796e060a25f0ac

SHA512
af13c23a82ec3f9865ad2605ca951b7826ecca169eaafb62bb7661113056402c3b3ebdd24b4f5d765f30c160a73da78217fb7b6c5105f6432e8cb34eb52b0b7e

Download Submit
memory/2892-11-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/4072-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/4072-5-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/4072-10-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download