b1c86618cfb19e1e66bc8385c630d3a44d4f913b2755cc4bfa60628e01b7af63

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15-03-2024 23:50

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General

Target

2024-03-15_e039ee30a2ee52be561a0a3d113fedd4_cryptolocker.exe
Size

50KB
MD5

e039ee30a2ee52be561a0a3d113fedd4
SHA1

5444803e576e2ee3a406f04ba8622df03b3b4108
SHA256

b1c86618cfb19e1e66bc8385c630d3a44d4f913b2755cc4bfa60628e01b7af63
SHA512

84c0049805579635b988ef5c971fcb834152029233ff7cacbb7095a351de7dc24c7913afaaeae9f9be0178b3e614de047e6f598dd524f52681b1074438cd9bba
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37Yl6dIKld5CSOy:bgGYcA/53GAA6y37Q6dI+d51

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001227e-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2380	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1308	2024-03-15_e039ee30a2ee52be561a0a3d113fedd4_cryptolocker.exe

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 1308 wrote to memory of 2380	1308	2024-03-15_e039ee30a2ee52be561a0a3d113fedd4_cryptolocker.exe	28
PID 1308 wrote to memory of 2380	1308	2024-03-15_e039ee30a2ee52be561a0a3d113fedd4_cryptolocker.exe	28
PID 1308 wrote to memory of 2380	1308	2024-03-15_e039ee30a2ee52be561a0a3d113fedd4_cryptolocker.exe	28
PID 1308 wrote to memory of 2380	1308	2024-03-15_e039ee30a2ee52be561a0a3d113fedd4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-15_e039ee30a2ee52be561a0a3d113fedd4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_e039ee30a2ee52be561a0a3d113fedd4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1308
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2380

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\hasfj.exe

Filesize
50KB

MD5
3e6641d2b16bd2bd048779125037d2bd

SHA1
9d35b8594b5bcceb7d0fdbc08cc20fc7991445f8

SHA256
2600e1556cb0ebfcf260ad8f59c7df5ee2e76f616aa700a6609076aae709299b

SHA512
341951480378fb61a2ad9312cb12ca62d84af8a2635190d89210f9a9dd728d5323a0184e4716900823cbcaac481b30c7a6672a15a76e3cbfdba26f2dd76bd170

Download Submit
memory/1308-0-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1308-1-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1308-8-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2380-15-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2380-18-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download