e251783e7e5aa9fcc80ed214d1ec1c24e8c0f7116391ec524db91dc92b4de19f

Analysis

max time kernel
239s
max time network
277s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
10/01/2024, 05:55

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General

Target

2024-01-09_6663848c4ceee77ed2793f77d46e4f5f_cryptolocker.exe
Size

84KB
MD5

6663848c4ceee77ed2793f77d46e4f5f
SHA1

4dca9f126291adb87b4170afaa41bd54c8fb6d95
SHA256

e251783e7e5aa9fcc80ed214d1ec1c24e8c0f7116391ec524db91dc92b4de19f
SHA512

1f32c0483ffa2166941e5ef9988f7150ac39b4e4030cadb1c225386228fc0a11062699653790ea62db4c85389a18c0f564caaa5dd8bdaaaf023281b1ccbde7e9
SSDEEP

768:qkmnjFom/kLyMro2GtOOtEvwDpjeY10Y/YMsvlMdwPK80GQuchoIgtIL:qkmnpomddpMOtEvwDpjJGYQbN/PKwMg8

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1140	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2644	2024-01-09_6663848c4ceee77ed2793f77d46e4f5f_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2644-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2644-10-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x0004000000004ed7-13.dat	upx
behavioral1/memory/1140-19-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/1140-27-0x0000000000500000-0x000000000050F000-memory.dmp	upx

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2644 wrote to memory of 1140	2644	2024-01-09_6663848c4ceee77ed2793f77d46e4f5f_cryptolocker.exe	27
PID 2644 wrote to memory of 1140	2644	2024-01-09_6663848c4ceee77ed2793f77d46e4f5f_cryptolocker.exe	27
PID 2644 wrote to memory of 1140	2644	2024-01-09_6663848c4ceee77ed2793f77d46e4f5f_cryptolocker.exe	27
PID 2644 wrote to memory of 1140	2644	2024-01-09_6663848c4ceee77ed2793f77d46e4f5f_cryptolocker.exe	27

C:\Users\Admin\AppData\Local\Temp\2024-01-09_6663848c4ceee77ed2793f77d46e4f5f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-09_6663848c4ceee77ed2793f77d46e4f5f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2644
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1140

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
84KB

MD5
6277cdc92ce18bbd1b25f6511f70beed

SHA1
c70b901a45f65a6b70a4b8a362e1bb16c284a21c

SHA256
eaef51e0299d2af2682e51bca831e30bde88d74b6c1219ac70f8cece13b8a2ad

SHA512
45272113020b01f74e811b488eca82bcf6143cddf488096c0b2212631393324f1ec646d55cda1aa6fa7b4e982498f3ab4c8a0aac9f948bbc94e20c382e23243b

Download Submit
memory/1140-20-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1140-19-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1140-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2644-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2644-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2644-2-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2644-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2644-10-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download