2e18b31457592d8b4c125bfd9c6b4a1f99b89cc1b41ff7edf056a2afc2860f37

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
10-03-2024 22:43

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General

Target

2024-03-10_14a5b436055ee15085979fae7e9f08d1_cryptolocker.exe
Size

92KB
MD5

14a5b436055ee15085979fae7e9f08d1
SHA1

532982f61daca5c5976fae7116b70f9d28006cb7
SHA256

2e18b31457592d8b4c125bfd9c6b4a1f99b89cc1b41ff7edf056a2afc2860f37
SHA512

715bcfe193db10d3518fe80128e7ace920cdb30f0fd9a9ed22d148e4e633cc3bf2b233524aa4a54b860a15fe2f1524acf9c3f63af7afd549bc22603bf395835d
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwMgcf976:V6a+pOtEvwDpjtz1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012240-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012240-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2900	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1500	2024-03-10_14a5b436055ee15085979fae7e9f08d1_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 1500 wrote to memory of 2900	1500	2024-03-10_14a5b436055ee15085979fae7e9f08d1_cryptolocker.exe	28
PID 1500 wrote to memory of 2900	1500	2024-03-10_14a5b436055ee15085979fae7e9f08d1_cryptolocker.exe	28
PID 1500 wrote to memory of 2900	1500	2024-03-10_14a5b436055ee15085979fae7e9f08d1_cryptolocker.exe	28
PID 1500 wrote to memory of 2900	1500	2024-03-10_14a5b436055ee15085979fae7e9f08d1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-10_14a5b436055ee15085979fae7e9f08d1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-10_14a5b436055ee15085979fae7e9f08d1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1500
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2900

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
92KB

MD5
e5beb764739ee2cbb493a05d979bf150

SHA1
dde0f08f3bbbd902f90aa26ea2b1a25ceb33f7cf

SHA256
de071ef490999177b4b11a570e1d205abecf751efdd1e231dd4df1415f4fb91f

SHA512
3850b2f4e5d01fe241282b0742f3ec5ac7a12a8a437aec6a1744b4ac3b24b7a8b98ceaf7660573a4ecfb9c3bff59b2a8cd5febb2671402da0d9d7bb31d528b39

Download Submit
memory/1500-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1500-1-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/1500-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2900-15-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2900-16-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download