585372630b477009a4d5aac892dd537b7e30e05fb41157feb91a5723d2985b75

Analysis

max time kernel
149s
max time network
122s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
12/08/2024, 00:53

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General

Target

8cad39d2077cd33226ebbf8b20c76c68_JaffaCakes118.exe
Size

14KB
MD5

8cad39d2077cd33226ebbf8b20c76c68
SHA1

3e296377d19ef74f94d138fcc6f5f70f67cf93c5
SHA256

585372630b477009a4d5aac892dd537b7e30e05fb41157feb91a5723d2985b75
SHA512

804e3af952b6d2eb969c696041a8c71cf555b1bf4fc1b4320b844bed624e4491dfcd52795c426b914b20bc85e26b03d0af2e8fad95bd4197e181159163f68ffb
SSDEEP

192:pAE9r8Kvx5eRJR8qqZR4FyptQE9V+BWXx2L0hj4C6yXwYE985FJ3xJdcCt:KEuEwf5qZR4FyUE9VpthhOAF9pt

Score

7^/10

discovery upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2200	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1800	bzski.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3068-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/files/0x000700000001211a-3.dat	upx
behavioral1/memory/1800-4-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/3068-5-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral1/memory/1800-6-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\bzski.exe	8cad39d2077cd33226ebbf8b20c76c68_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\bzski.exe	8cad39d2077cd33226ebbf8b20c76c68_JaffaCakes118.exe

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	8cad39d2077cd33226ebbf8b20c76c68_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bzski.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3068	8cad39d2077cd33226ebbf8b20c76c68_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3068 wrote to memory of 2200	3068	8cad39d2077cd33226ebbf8b20c76c68_JaffaCakes118.exe	31
PID 3068 wrote to memory of 2200	3068	8cad39d2077cd33226ebbf8b20c76c68_JaffaCakes118.exe	31
PID 3068 wrote to memory of 2200	3068	8cad39d2077cd33226ebbf8b20c76c68_JaffaCakes118.exe	31
PID 3068 wrote to memory of 2200	3068	8cad39d2077cd33226ebbf8b20c76c68_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\8cad39d2077cd33226ebbf8b20c76c68_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8cad39d2077cd33226ebbf8b20c76c68_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3068
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\8CAD39~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2200

C:\Windows\SysWOW64\bzski.exe
C:\Windows\SysWOW64\bzski.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1800

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

Replay Monitor

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Downloads

C:\Windows\SysWOW64\bzski.exe

Filesize
14KB

MD5
8cad39d2077cd33226ebbf8b20c76c68

SHA1
3e296377d19ef74f94d138fcc6f5f70f67cf93c5

SHA256
585372630b477009a4d5aac892dd537b7e30e05fb41157feb91a5723d2985b75

SHA512
804e3af952b6d2eb969c696041a8c71cf555b1bf4fc1b4320b844bed624e4491dfcd52795c426b914b20bc85e26b03d0af2e8fad95bd4197e181159163f68ffb

Download Submit
memory/1800-4-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1800-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3068-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3068-5-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download