b7e2f06631a6c3d968c08981d3ae736d32c01fed99b7fe2cf0ffc64e20d27dfb

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29-03-2024 00:44

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General

Target

2024-03-29_837a2d22001b7b05550d65033c08169a_cryptolocker.exe
Size

46KB
MD5

837a2d22001b7b05550d65033c08169a
SHA1

da76579f4b451ab46daf6d77772b7d1544d98ad1
SHA256

b7e2f06631a6c3d968c08981d3ae736d32c01fed99b7fe2cf0ffc64e20d27dfb
SHA512

628c46818529e9b77a7c1ba751b9ea451702c3117d61ad94ce99b97b11e517751b1e024e9319559959e0f5cfef99852c37fd164184f8abcd29b5600192b18801
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hQcXv:bgGYcA/53GAA6y37nbr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001224c-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2872	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1936	2024-03-29_837a2d22001b7b05550d65033c08169a_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 1936 wrote to memory of 2872	1936	2024-03-29_837a2d22001b7b05550d65033c08169a_cryptolocker.exe	28
PID 1936 wrote to memory of 2872	1936	2024-03-29_837a2d22001b7b05550d65033c08169a_cryptolocker.exe	28
PID 1936 wrote to memory of 2872	1936	2024-03-29_837a2d22001b7b05550d65033c08169a_cryptolocker.exe	28
PID 1936 wrote to memory of 2872	1936	2024-03-29_837a2d22001b7b05550d65033c08169a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-29_837a2d22001b7b05550d65033c08169a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-29_837a2d22001b7b05550d65033c08169a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2872

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
46KB

MD5
bfb3f2500ac4eda8f6c9c034aab063b7

SHA1
822f7e6e3b2e911cf61fe6c0f0183a6dd76c0ef3

SHA256
790b6e7a3edb88b4b9b47b0d2778c14ce550a6252f62674d96f07df24690485d

SHA512
44c1313b625fdd9f1d69811d889870c2cae21cd733f7b25fd7ec74edbc63e4e1d011be45b36a541dd2a73bc0be3572d5e0e3504805d35d198067eb7286eb6fc9

Download Submit
memory/1936-0-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/1936-1-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

Filesize
24KB

Download
memory/1936-8-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/2872-16-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download