485892f3304bd66d795a49c914ac8a8ec66944b4bc8a2ffce021f9702d79d927

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
25-05-2024 09:52

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General

Target

2024-05-25_e64d75f0d54fa75fa1b8f9c421bb1744_cryptolocker.exe
Size

43KB
MD5

e64d75f0d54fa75fa1b8f9c421bb1744
SHA1

929e7f3a52a29a4a37f370cadb6fdc9ca5ba9038
SHA256

485892f3304bd66d795a49c914ac8a8ec66944b4bc8a2ffce021f9702d79d927
SHA512

f438d8b5f87eed82f4ab9595b899ec301fdbf26c88af71c2a026bc01588daecbfc73e38f2979be3d1f96db308358c7c002a6a04af870fa2692a16ae0a0922b10
SSDEEP

384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jo0nrlwfjDUIQ:bm74zYcgT/Ekn0ryfjc

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

resource	yara_rule
behavioral1/memory/836-0-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000012280-11.dat	CryptoLocker_rule2
behavioral1/memory/836-13-0x0000000001FE0000-0x0000000001FED000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2356-17-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/836-16-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2356-27-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2356	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
836	2024-05-25_e64d75f0d54fa75fa1b8f9c421bb1744_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 836 wrote to memory of 2356	836	2024-05-25_e64d75f0d54fa75fa1b8f9c421bb1744_cryptolocker.exe	28
PID 836 wrote to memory of 2356	836	2024-05-25_e64d75f0d54fa75fa1b8f9c421bb1744_cryptolocker.exe	28
PID 836 wrote to memory of 2356	836	2024-05-25_e64d75f0d54fa75fa1b8f9c421bb1744_cryptolocker.exe	28
PID 836 wrote to memory of 2356	836	2024-05-25_e64d75f0d54fa75fa1b8f9c421bb1744_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-25_e64d75f0d54fa75fa1b8f9c421bb1744_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-25_e64d75f0d54fa75fa1b8f9c421bb1744_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:836
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2356

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
43KB

MD5
f3d1a8736ea7fd8a1a247e885da5b439

SHA1
79f6803b02fdd24bfa3f96d27dcf593a100aae2c

SHA256
97219ddc7a4ac3a2989a8be255d116bcf2016bd794d607bb62682ab01cb030c6

SHA512
783ba6e0007c1272603e0b087a2ae86a9e35e5ec81248db81c143e28d5f856b37379ec02b0a6f9452b376c145de71e708502e54a554df70f097baf510329e40c

Download Submit
memory/836-0-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/836-2-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/836-8-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/836-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/836-13-0x0000000001FE0000-0x0000000001FED000-memory.dmp

Filesize
52KB

Download
memory/836-16-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2356-17-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2356-19-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2356-26-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2356-27-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download