8601ea156df5c785971d5f26dd5e4a0ac979ff4c92f4daf2b4a8eee712a3dbf5

Analysis

max time kernel
142s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
22/08/2024, 01:42

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General

Target

b5ddc02549db931d9eb3e820db639390_JaffaCakes118.exe
Size

56KB
MD5

b5ddc02549db931d9eb3e820db639390
SHA1

687293c2d5b20e2a6764b6aa4ce40d9c7a2ab8c1
SHA256

8601ea156df5c785971d5f26dd5e4a0ac979ff4c92f4daf2b4a8eee712a3dbf5
SHA512

58df99410d6115707285bffc825bee537a162a21507d6ee349f632d0ecbc0c587ebb31bce7e6cfeb949fdf1504337e93c273433d269ff21f08f1de42fc532f41
SSDEEP

1536:MYXenHdaBbGAVlSy+yxGyalGbY16rwE8jBvVawT6:MM4khxGeY4rwRjndG

Score

7^/10

aspackv2 discovery persistence

Malware Config

Signatures

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x000a0000000233d9-5.dat	aspack_v212_v242

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	b5ddc02549db931d9eb3e820db639390_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
1208	csrmt.exe

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\service = "C:\\Users\\Admin\\AppData\\Local\\Temp\\csrmt.exe"	csrmt.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	b5ddc02549db931d9eb3e820db639390_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrmt.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1208	csrmt.exe
1208	csrmt.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 1208	2380	b5ddc02549db931d9eb3e820db639390_JaffaCakes118.exe	84
PID 2380 wrote to memory of 1208	2380	b5ddc02549db931d9eb3e820db639390_JaffaCakes118.exe	84
PID 2380 wrote to memory of 1208	2380	b5ddc02549db931d9eb3e820db639390_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\b5ddc02549db931d9eb3e820db639390_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b5ddc02549db931d9eb3e820db639390_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Users\Admin\AppData\Local\Temp\csrmt.exe
  "C:\Users\Admin\AppData\Local\Temp\csrmt.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:1208

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\csrmt.exe

Filesize
54KB

MD5
b86f57f598f6451c5ce6ae4ee5da8669

SHA1
2b7166f5713efd47e01038d16f86c1f86fc77fee

SHA256
f55ff977b2c8ab012fd2ee5dfbf5982b1d53d14aa9c2d0d5135e469a1df1ae68

SHA512
0abad9a6b92fb427ed9ec5894502932639fab9c1af365c4c020d2992b46ddd41a9adf3aa7ef10568c69bae1a03bb0f8d61104c050d23f330fa17850317988be2

Download Submit
memory/1208-17-0x0000000000880000-0x00000000008A3000-memory.dmp

Filesize
140KB

Download
memory/1208-9-0x0000000000880000-0x00000000008A3000-memory.dmp

Filesize
140KB

Download
memory/1208-13-0x0000000000880000-0x00000000008A3000-memory.dmp

Filesize
140KB

Download
memory/1208-12-0x0000000000880000-0x00000000008A3000-memory.dmp

Filesize
140KB

Download
memory/1208-11-0x0000000000880000-0x00000000008A3000-memory.dmp

Filesize
140KB

Download
memory/1208-14-0x0000000000A40000-0x0000000000A41000-memory.dmp

Filesize
4KB

Download
memory/1208-15-0x0000000000880000-0x00000000008A3000-memory.dmp

Filesize
140KB

Download
memory/1208-19-0x0000000000880000-0x00000000008A3000-memory.dmp

Filesize
140KB

Download
memory/1208-21-0x0000000000880000-0x00000000008A3000-memory.dmp

Filesize
140KB

Download
memory/1208-23-0x0000000000880000-0x00000000008A3000-memory.dmp

Filesize
140KB

Download
memory/1208-25-0x0000000000880000-0x00000000008A3000-memory.dmp

Filesize
140KB

Download
memory/2380-10-0x0000000000400000-0x000000000040FB45-memory.dmp

Filesize
62KB

Download
memory/2380-0-0x0000000000400000-0x000000000040FB45-memory.dmp

Filesize
62KB

Download