e62f5386990715dbcbc8362669e71bad3031820ed3ad90bef92544b5990a9402

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-09-2024 11:15

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General

Target

f5e2dec5faefc56c21d35c2ef3d8ce46_JaffaCakes118.exe
Size

136KB
MD5

f5e2dec5faefc56c21d35c2ef3d8ce46
SHA1

266b0c06bc27b9deb851b1d5c306b311f97aa67b
SHA256

e62f5386990715dbcbc8362669e71bad3031820ed3ad90bef92544b5990a9402
SHA512

e5615ec11f93bee468a92617d99d2ea2dc4bf18c1b01b83c2b6799743531b10e78d8e0d16409f60ae521aab46d0980a4ba68f5e3a2ebaf3e59d3e97c98d93fe7
SSDEEP

1536:5e0ta0vY5ZXFCx1qtegQza2o6rXaY+9HBxKWKF93kqe47sUC1vZngSls+:40A0vSqx1qtegd6jSBTKF9VbQlngss

Score

7^/10

defense_evasion discovery

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3056	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1792	vifzsk.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 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\vifzsk.exe	f5e2dec5faefc56c21d35c2ef3d8ce46_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\vifzsk.exe	f5e2dec5faefc56c21d35c2ef3d8ce46_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	f5e2dec5faefc56c21d35c2ef3d8ce46_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vifzsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	vifzsk.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	vifzsk.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2096	f5e2dec5faefc56c21d35c2ef3d8ce46_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2096 wrote to memory of 3056	2096	f5e2dec5faefc56c21d35c2ef3d8ce46_JaffaCakes118.exe	32
PID 2096 wrote to memory of 3056	2096	f5e2dec5faefc56c21d35c2ef3d8ce46_JaffaCakes118.exe	32
PID 2096 wrote to memory of 3056	2096	f5e2dec5faefc56c21d35c2ef3d8ce46_JaffaCakes118.exe	32
PID 2096 wrote to memory of 3056	2096	f5e2dec5faefc56c21d35c2ef3d8ce46_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\f5e2dec5faefc56c21d35c2ef3d8ce46_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f5e2dec5faefc56c21d35c2ef3d8ce46_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2096
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\F5E2DE~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3056

C:\Windows\SysWOW64\vifzsk.exe
C:\Windows\SysWOW64\vifzsk.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Checks processor information in registry
PID:1792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\vifzsk.exe

Filesize
136KB

MD5
f5e2dec5faefc56c21d35c2ef3d8ce46

SHA1
266b0c06bc27b9deb851b1d5c306b311f97aa67b

SHA256
e62f5386990715dbcbc8362669e71bad3031820ed3ad90bef92544b5990a9402

SHA512
e5615ec11f93bee468a92617d99d2ea2dc4bf18c1b01b83c2b6799743531b10e78d8e0d16409f60ae521aab46d0980a4ba68f5e3a2ebaf3e59d3e97c98d93fe7

Download Submit
memory/1792-5-0x0000000010000000-0x0000000010016000-memory.dmp

Filesize
88KB

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