9acd993cdeb62c0ddfc2051de07fdb6b45b305545fa83541d199531e4f482b98

Analysis

max time kernel
150s
max time network
142s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
22/08/2024, 22:28

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General

Target

b959399ac73dbf0d6b20085760679bda_JaffaCakes118.exe
Size

56KB
MD5

b959399ac73dbf0d6b20085760679bda
SHA1

daedea641a1906631f489d5134ae7f46a6fbfae2
SHA256

9acd993cdeb62c0ddfc2051de07fdb6b45b305545fa83541d199531e4f482b98
SHA512

efc2b838b5d655cea1f9b3d384321d265b84ed17db47331c382e919d1a978f0c14e5e39b1769b32834adca0c535dc5ab56b6eae0b908ea17bf983918dd64ca2b
SSDEEP

1536:jClgOD2kuqO5Kz1DLzMJ10WEzfmuH7OEz:jClgOD2N35KZzWubbz

Score

8^/10

discovery persistence

Malware Config

Signatures

Server Software Component: Terminal Services DLL 1 TTPs 3 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Microsoft\Parameters\ServiceDll = "%SystemRoot%\\System32\\bkryyu.dll"	b959399ac73dbf0d6b20085760679bda_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet002\services\Microsoft\Parameters\ServiceDll = "%SystemRoot%\\System32\\bkryyu.dll"	b959399ac73dbf0d6b20085760679bda_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet003\Services\Microsoft\Parameters\ServiceDll = "%SystemRoot%\\System32\\bkryyu.dll"	b959399ac73dbf0d6b20085760679bda_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2748	svchost.exe

Loads dropped DLL 2 IoCs

pid	Process
2752	b959399ac73dbf0d6b20085760679bda_JaffaCakes118.exe
2748	svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\00049c03.001	b959399ac73dbf0d6b20085760679bda_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\bkryyu.dll	b959399ac73dbf0d6b20085760679bda_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	b959399ac73dbf0d6b20085760679bda_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2748	svchost.exe
2748	svchost.exe
2748	svchost.exe

C:\Users\Admin\AppData\Local\Temp\b959399ac73dbf0d6b20085760679bda_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b959399ac73dbf0d6b20085760679bda_JaffaCakes118.exe"
1⤵
- Server Software Component: Terminal Services DLL
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
PID:2752

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k Microsoft
1⤵
- Deletes itself
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:2748

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

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Windows\SysWOW64\bkryyu.dll

Filesize
89KB

MD5
25aea626a11f70f86f378a72c76f330f

SHA1
3db84ac465e98ca6af17f71a7576b30ff67f8083

SHA256
a4324e990457dc0b3680c8ca2168e886d3f2c9a9d9f3f7a174f795729a54f58c

SHA512
76de2c3b9a7cce1f709d1cc4a5d9d86d9a3673565fb19e572aeea164276b1d562cd57237f4340e66eee64348261b2309fd7029e66c3ea4f5f9efe4be60ef21ca

Download Submit
memory/2752-0-0x0000000000400000-0x000000000040E4D8-memory.dmp

Filesize
57KB

Download
memory/2752-2-0x000000000040E000-0x000000000040F000-memory.dmp

Filesize
4KB

Download
memory/2752-8-0x0000000000400000-0x000000000040E4D8-memory.dmp

Filesize
57KB

Download