5c05b63ddd04215fab3acdea47f6c6c21299e2fce607fac19ceed8030ba3e0e0

Analysis

max time kernel
141s
max time network
139s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
27-09-2024 19:01

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General

Target

2024-09-27_b24bff4961260221746ecd4e0720cb74_cryptolocker.exe
Size

39KB
MD5

b24bff4961260221746ecd4e0720cb74
SHA1

0b22f4b5e022b4814647a94900477a9f17b7502a
SHA256

5c05b63ddd04215fab3acdea47f6c6c21299e2fce607fac19ceed8030ba3e0e0
SHA512

28c62d6418d9ce9217d21373fccb9816458faa61e7e5337fd039fa3608d8e54adf4e9dae185d5e7efe86c6614029da15cd5cabafb12e1098634cab4848107e49
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkIT6:qDdFJy3QMOtEvwDpjjWMl7T6

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2268	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2296	2024-09-27_b24bff4961260221746ecd4e0720cb74_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2296-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000700000001211a-11.dat	upx
behavioral1/memory/2296-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2268-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2268-28-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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	2024-09-27_b24bff4961260221746ecd4e0720cb74_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 2268	2296	2024-09-27_b24bff4961260221746ecd4e0720cb74_cryptolocker.exe	30
PID 2296 wrote to memory of 2268	2296	2024-09-27_b24bff4961260221746ecd4e0720cb74_cryptolocker.exe	30
PID 2296 wrote to memory of 2268	2296	2024-09-27_b24bff4961260221746ecd4e0720cb74_cryptolocker.exe	30
PID 2296 wrote to memory of 2268	2296	2024-09-27_b24bff4961260221746ecd4e0720cb74_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-27_b24bff4961260221746ecd4e0720cb74_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_b24bff4961260221746ecd4e0720cb74_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2268

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
40KB

MD5
3ba7d8ff10fc509871191dc387d770d2

SHA1
54ab1716adcca735004cce8b06d54508c66c63ee

SHA256
02b23add060a48ed69a4989a071fc5eba9a5c942195ff713a5a34ccbb875c776

SHA512
10cb2cac1abee954357cd25eef286a89c5d2187f972d41880f33920b8bcce6d4411f437d4f05fb66ccaa258130f0e37a2030c3ff62db38602f5e210f219503be

Download Submit
memory/2268-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2268-20-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2268-27-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2268-28-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2296-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2296-3-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2296-2-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2296-1-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2296-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2296-13-0x00000000004D0000-0x00000000004E0000-memory.dmp

Filesize
64KB

Download