30737ccff8def68ae0c183caae8b2c483ecb4c4a4fa19a999a5ab12666e2a50e

Analysis

max time kernel
140s
max time network
17s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
22/08/2024, 18:13

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General

Target

b89f6788a53196b23c1fba7adc684414_JaffaCakes118.exe
Size

64KB
MD5

b89f6788a53196b23c1fba7adc684414
SHA1

bf7196f16ad16cc7cd3b3011d5c6a29b9587dbca
SHA256

30737ccff8def68ae0c183caae8b2c483ecb4c4a4fa19a999a5ab12666e2a50e
SHA512

d82db45f380ab638c349c43e13c2f3c6dacd3806ca1d19a834f8dcd0bc58e546692b4e727c4aa114786a225ebb7dc49f1af84b831c3ad7e6aef458fe5ba01622
SSDEEP

768:p+jQbpOhCU/JefrPjHgYaO/CSCMC0rWIAbpAtxUr6UXFZrwohHn8lX3PinPlo8hq:p+jQbU4fHXHCMWX5XP5GXqquusal4o

Score

10^/10

discovery persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b89f6788a53196b23c1fba7adc684414_JaffaCakes118.exe"	b89f6788a53196b23c1fba7adc684414_JaffaCakes118.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/860-2-0x0000000000400000-0x0000000000420000-memory.dmp	upx
behavioral1/memory/860-4-0x0000000000400000-0x0000000000420000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows\CurrentVersion\Run\S1119075 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b89f6788a53196b23c1fba7adc684414_JaffaCakes118.exe"	b89f6788a53196b23c1fba7adc684414_JaffaCakes118.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	b89f6788a53196b23c1fba7adc684414_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2532	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2532	taskkill.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 860 wrote to memory of 2532	860	b89f6788a53196b23c1fba7adc684414_JaffaCakes118.exe	29
PID 860 wrote to memory of 2532	860	b89f6788a53196b23c1fba7adc684414_JaffaCakes118.exe	29
PID 860 wrote to memory of 2532	860	b89f6788a53196b23c1fba7adc684414_JaffaCakes118.exe	29
PID 860 wrote to memory of 2532	860	b89f6788a53196b23c1fba7adc684414_JaffaCakes118.exe	29

C:\Users\Admin\AppData\Local\Temp\b89f6788a53196b23c1fba7adc684414_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b89f6788a53196b23c1fba7adc684414_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:860
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /F /IM explorer.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:2532

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

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

memory/860-1-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/860-0-0x0000000000412000-0x0000000000416000-memory.dmp

Filesize
16KB

Download
memory/860-2-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/860-3-0x0000000000412000-0x0000000000416000-memory.dmp

Filesize
16KB

Download
memory/860-4-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads