05284f40fe2200c9e6c11ba42046c49d61cb6a020a16bdd65fe5e8be22656367

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
04/02/2024, 19:28

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General

Target

2024-02-04_5004f9d20d7af29acbf71ace65df4ba6_cryptolocker.exe
Size

48KB
MD5

5004f9d20d7af29acbf71ace65df4ba6
SHA1

f59877ed89e53eb15575daaab017463218aac8e5
SHA256

05284f40fe2200c9e6c11ba42046c49d61cb6a020a16bdd65fe5e8be22656367
SHA512

37248e32599f8924285aed3774e3fbb050704d6201ed4bb19094d8f1165b90290420cd8aa224208099b8c5929f0109e2f9e6b50dba174a21805aba4dfa9687a8
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qnTHGD:79mqyNhQMOtEvwDpjBxe8GGD

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1768-1-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b00000001224f-11.dat	CryptoLocker_rule2
behavioral1/memory/1768-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2704-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1768-13-0x0000000000610000-0x000000000061F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1768-1-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b00000001224f-11.dat	CryptoLocker_set1
behavioral1/memory/1768-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2704-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1768-13-0x0000000000610000-0x000000000061F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2704	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1768	2024-02-04_5004f9d20d7af29acbf71ace65df4ba6_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 1768 wrote to memory of 2704	1768	2024-02-04_5004f9d20d7af29acbf71ace65df4ba6_cryptolocker.exe	28
PID 1768 wrote to memory of 2704	1768	2024-02-04_5004f9d20d7af29acbf71ace65df4ba6_cryptolocker.exe	28
PID 1768 wrote to memory of 2704	1768	2024-02-04_5004f9d20d7af29acbf71ace65df4ba6_cryptolocker.exe	28
PID 1768 wrote to memory of 2704	1768	2024-02-04_5004f9d20d7af29acbf71ace65df4ba6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-04_5004f9d20d7af29acbf71ace65df4ba6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-04_5004f9d20d7af29acbf71ace65df4ba6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1768
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2704

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
48KB

MD5
b4349e7b5620978741c61679c0b06ab2

SHA1
0fda22e0f8a5bae496a20fe70d5ce780f62c7390

SHA256
0afb351f303b401d34a3e127a625c7c24a5d0d0d806700d25f53d61929962d94

SHA512
e74d3c2c9a6a2b0e7b6ca9482f55aa2855168de7ab7c2e9aa192e9f9e161cd85bc3a1a87d89751768fe7477e2446e7e8108277b2cfd10ebb1a64a953c5467336

Download Submit
memory/1768-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1768-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1768-1-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1768-3-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1768-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1768-13-0x0000000000610000-0x000000000061F000-memory.dmp

Filesize
60KB

Download
memory/2704-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2704-21-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download