ccb74fabe5d9891d87de64cd9c071c95a0fe10c032dfad3f7cbf7f834328d444

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21/09/2024, 03:29

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General

Target

eefc7793478231c8aa8fe02ba0b64a0c_JaffaCakes118.exe
Size

13KB
MD5

eefc7793478231c8aa8fe02ba0b64a0c
SHA1

04030a42b15be88f654cc441298d01d8e98bafd8
SHA256

ccb74fabe5d9891d87de64cd9c071c95a0fe10c032dfad3f7cbf7f834328d444
SHA512

f6f3b94ea20094e0688f0a136e07c4a5a084608e65e89fba9cba27a13b9303c1e8526fb60ee5941502febb6cf5c12e50f97ad0c2e4f3998986429c885b23b727
SSDEEP

384:6CsGRcZ16NrJ1DWNoTpAhNFHE4FXRjc5:6CsGRcbkzvpAfFH3y

Score

7^/10

discovery upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1736	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
1736	rundll32.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2072-3-0x0000000000400000-0x0000000000410000-memory.dmp	upx
behavioral1/memory/2072-0-0x0000000000400000-0x0000000000410000-memory.dmp	upx

Drops file in System32 directory 7 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\csrss.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\csrss.dll	rundll32.exe
File created	C:\Windows\SysWOW64\rpcss.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\rpcss.dll	rundll32.exe
File created	C:\Windows\SysWOW64\sh17009.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\sh17009.dll	rundll32.exe
File created	C:\Windows\SysWOW64\sh17009.add	rundll32.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	eefc7793478231c8aa8fe02ba0b64a0c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1736	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1736	rundll32.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2072 wrote to memory of 1736	2072	eefc7793478231c8aa8fe02ba0b64a0c_JaffaCakes118.exe	30
PID 2072 wrote to memory of 1736	2072	eefc7793478231c8aa8fe02ba0b64a0c_JaffaCakes118.exe	30
PID 2072 wrote to memory of 1736	2072	eefc7793478231c8aa8fe02ba0b64a0c_JaffaCakes118.exe	30
PID 2072 wrote to memory of 1736	2072	eefc7793478231c8aa8fe02ba0b64a0c_JaffaCakes118.exe	30
PID 2072 wrote to memory of 1736	2072	eefc7793478231c8aa8fe02ba0b64a0c_JaffaCakes118.exe	30
PID 2072 wrote to memory of 1736	2072	eefc7793478231c8aa8fe02ba0b64a0c_JaffaCakes118.exe	30
PID 2072 wrote to memory of 1736	2072	eefc7793478231c8aa8fe02ba0b64a0c_JaffaCakes118.exe	30
PID 1736 wrote to memory of 1188	1736	rundll32.exe	21

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1188
- C:\Users\Admin\AppData\Local\Temp\eefc7793478231c8aa8fe02ba0b64a0c_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\eefc7793478231c8aa8fe02ba0b64a0c_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2072
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32 C:\Users\Admin\AppData\Local\Temp\~f769c11.~~~ INS C:\Users\Admin\AppData\Local\Temp\eefc7793478231c8aa8fe02ba0b64a0c_JaffaCakes118.exe
    3⤵
    - Deletes itself
    - Loads dropped DLL
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1736

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

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

C:\Users\Admin\AppData\Local\Temp\~f769c11.~~~

Filesize
33KB

MD5
672ae5ccbc36b9f617ba40c0e3d97996

SHA1
92bfdeaed520b9425140f2d9eeed4de4cf3c79c9

SHA256
565e3074edbb47c661bc3e9eba22c0a080ce7e860c3c598c5ad958f6f0a92b48

SHA512
7637a0d7ddb1fe9aa5e67c979ab250bb4962f60e4ec0eebb38ed2ac89386b46093cfa32a96f1ebd0c17a1dd3fc564b00182f20561028f125e3b14e64819f2afd

Download Submit
memory/1188-14-0x0000000002ED0000-0x0000000002ED1000-memory.dmp

Filesize
4KB

Download
memory/1736-7-0x0000000010012000-0x0000000010013000-memory.dmp

Filesize
4KB

Download
memory/1736-6-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2072-3-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2072-0-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download