b01396ce89c653a67b2a6a31f1cba2730376b05a968bec6e2ca9cc3f90f84b29

Analysis

max time kernel
150s
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
13/08/2024, 15:25

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General

Target

93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe
Size

12KB
MD5

93a891fd446f4bdbe02badd6e69303ff
SHA1

cb27cdde00f7b41a737e862f5c2271d046745bbd
SHA256

b01396ce89c653a67b2a6a31f1cba2730376b05a968bec6e2ca9cc3f90f84b29
SHA512

94aebfd060a15c98b9ae5bae0d89e2e5a072512cc3d9240ef52955f918ab82d2dd45c32e6732e1d38f1bfc29fde65484796ba62e185be809a90a1c7ecc2642a9
SSDEEP

384:cn1T4MnddswPiPpVEGLIJaN98aRu2QGsHHjS3gagAK+:mT4M04EVEnsNKsQm3N3

Score

8^/10

discovery persistence privilege_escalation upx

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

Executes dropped EXE 1 IoCs

pid	Process
1244	xuntxnk.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4140-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/files/0x00080000000234c4-4.dat	upx
behavioral2/memory/1244-6-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/4140-9-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\xuntxn.dll	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\xuntxnk.exe	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\xuntxnk.exe	93a891fd446f4bdbe02badd6e69303ff_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	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xuntxnk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4140	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe
4140	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4140 wrote to memory of 1244	4140	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe	91
PID 4140 wrote to memory of 1244	4140	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe	91
PID 4140 wrote to memory of 1244	4140	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe	91
PID 4140 wrote to memory of 1036	4140	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe	92
PID 4140 wrote to memory of 1036	4140	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe	92
PID 4140 wrote to memory of 1036	4140	93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe	92

C:\Users\Admin\AppData\Local\Temp\93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4140
- C:\Windows\SysWOW64\xuntxnk.exe
  C:\Windows\system32\xuntxnk.exe ˜‰
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1244
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe.bat
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1036

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

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\93a891fd446f4bdbe02badd6e69303ff_JaffaCakes118.exe.bat

Filesize
210B

MD5
220f75568714cd176240686d1a3be131

SHA1
42178e29dc20273ce13a8ab37ffdad50afdfb4ff

SHA256
b6e11624e109e365b94054afcc4d83d4d6e7dffcd2842702468560dc21bc0451

SHA512
1e920007fabc34b8e5015f9a51f454cc862261457689beea518cfe8d9a2d4d56b19e1136e2e31e7943d12f00c5aaf4848eeb94963d6692eb042e79ef42b855ac

Download Submit
C:\Windows\SysWOW64\xuntxnk.exe

Filesize
12KB

MD5
93a891fd446f4bdbe02badd6e69303ff

SHA1
cb27cdde00f7b41a737e862f5c2271d046745bbd

SHA256
b01396ce89c653a67b2a6a31f1cba2730376b05a968bec6e2ca9cc3f90f84b29

SHA512
94aebfd060a15c98b9ae5bae0d89e2e5a072512cc3d9240ef52955f918ab82d2dd45c32e6732e1d38f1bfc29fde65484796ba62e185be809a90a1c7ecc2642a9

Download Submit
memory/1244-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4140-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4140-9-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download