e19182e7fa678ab02a371e24234f67ed09cc69724ed731edf1a669c8775dd0ba

Analysis

max time kernel
150s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20/08/2024, 10:02

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General

Target

aecc037278c8990a3488bea4ca55aff0_JaffaCakes118.exe
Size

12KB
MD5

aecc037278c8990a3488bea4ca55aff0
SHA1

cf682e8392b908a39d4e0a49aa2f192d375c3c8c
SHA256

e19182e7fa678ab02a371e24234f67ed09cc69724ed731edf1a669c8775dd0ba
SHA512

7db34af0854c6dbb48175d753ab926422ca1366e39e4bb34147ef261c17f5bc2d33dff1c7c7717d793b4017d97e4907787964a9eceb02cd1bde264f9f88aa011
SSDEEP

192:nEOklN0ueH7BFkc+k23ox7kh2pkVkNALPK5UaqQPryFGTCguvFnZFzS1+:ElWFHrly4xUfmA21BrEgEnZF4+

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
1964	zesttnsk.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4152-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/files/0x0004000000022d07-4.dat	upx
behavioral2/memory/4152-8-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/1964-10-0x0000000000400000-0x000000000040F000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\zesttns.dll	aecc037278c8990a3488bea4ca55aff0_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\zesttnsk.exe	aecc037278c8990a3488bea4ca55aff0_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\zesttnsk.exe	aecc037278c8990a3488bea4ca55aff0_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	zesttnsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aecc037278c8990a3488bea4ca55aff0_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4152	aecc037278c8990a3488bea4ca55aff0_JaffaCakes118.exe
4152	aecc037278c8990a3488bea4ca55aff0_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4152 wrote to memory of 1964	4152	aecc037278c8990a3488bea4ca55aff0_JaffaCakes118.exe	92
PID 4152 wrote to memory of 1964	4152	aecc037278c8990a3488bea4ca55aff0_JaffaCakes118.exe	92
PID 4152 wrote to memory of 1964	4152	aecc037278c8990a3488bea4ca55aff0_JaffaCakes118.exe	92
PID 4152 wrote to memory of 3796	4152	aecc037278c8990a3488bea4ca55aff0_JaffaCakes118.exe	94
PID 4152 wrote to memory of 3796	4152	aecc037278c8990a3488bea4ca55aff0_JaffaCakes118.exe	94
PID 4152 wrote to memory of 3796	4152	aecc037278c8990a3488bea4ca55aff0_JaffaCakes118.exe	94

C:\Users\Admin\AppData\Local\Temp\aecc037278c8990a3488bea4ca55aff0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\aecc037278c8990a3488bea4ca55aff0_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4152
- C:\Windows\SysWOW64\zesttnsk.exe
  C:\Windows\system32\zesttnsk.exe ˜‰
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1964
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\aecc037278c8990a3488bea4ca55aff0_JaffaCakes118.exe.bat
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3796

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\aecc037278c8990a3488bea4ca55aff0_JaffaCakes118.exe.bat

Filesize
210B

MD5
c01d807819acf07e8a801072af78dac1

SHA1
d59950024d1d6731d173e5550fe96012104ecedf

SHA256
3d45f2cf3c6076515873daaa554dfe241b06e25aee8660ad47092464db5f1d9b

SHA512
29d24930df7c6a88b0e5259da4c55fee0ecd91ca87210a5e2e7a0fc24d29a809af8a2f7cf3c13f2f544d92f302eef9f4aeec230dab4828c6ee78f9d1d29a16cf

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

Filesize
12KB

MD5
aecc037278c8990a3488bea4ca55aff0

SHA1
cf682e8392b908a39d4e0a49aa2f192d375c3c8c

SHA256
e19182e7fa678ab02a371e24234f67ed09cc69724ed731edf1a669c8775dd0ba

SHA512
7db34af0854c6dbb48175d753ab926422ca1366e39e4bb34147ef261c17f5bc2d33dff1c7c7717d793b4017d97e4907787964a9eceb02cd1bde264f9f88aa011

Download Submit
memory/1964-10-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4152-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4152-8-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download