681dbe8e4c750fce40053bb1281a42696a0ef86a03b7f2ec92337ef739a69cb8

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
21/02/2024, 19:01

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General

Target

2024-02-21_de6c2325b85f4f86a82a2151f01794bf_cryptolocker.exe
Size

48KB
MD5

de6c2325b85f4f86a82a2151f01794bf
SHA1

69ab5c1b76637312d4c16a337d9cac455b9147fc
SHA256

681dbe8e4c750fce40053bb1281a42696a0ef86a03b7f2ec92337ef739a69cb8
SHA512

96f1d4744c0dca98457b01b1c9ecba28f76b30a667fd04b65f86dcc1c42a850881000732e73ed26c7ec2340c5e6b34213e9889405e34de368fdf65aaad43e382
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu55id3AMWZp:X6QFElP6n+gJQMOtEvwDpjB0GIWiWLH

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000013a3f-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000013a3f-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1804	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2220	2024-02-21_de6c2325b85f4f86a82a2151f01794bf_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 2220 wrote to memory of 1804	2220	2024-02-21_de6c2325b85f4f86a82a2151f01794bf_cryptolocker.exe	28
PID 2220 wrote to memory of 1804	2220	2024-02-21_de6c2325b85f4f86a82a2151f01794bf_cryptolocker.exe	28
PID 2220 wrote to memory of 1804	2220	2024-02-21_de6c2325b85f4f86a82a2151f01794bf_cryptolocker.exe	28
PID 2220 wrote to memory of 1804	2220	2024-02-21_de6c2325b85f4f86a82a2151f01794bf_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-21_de6c2325b85f4f86a82a2151f01794bf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_de6c2325b85f4f86a82a2151f01794bf_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1804

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
edd11e8cf69b7c246d1c4044e7b6ef59

SHA1
b95998df90d0664e04de93c09949163622789cc8

SHA256
12cf4e5e2a45c4321ecb928a5f9b2ab10c6b1d1387b960452a5143098e9ff576

SHA512
9f033e0dc8644ea74c9ef3b3d940ba6e287e88b871fd556526654ac60eff9ae9b4f4fa4a9108ba13c7ea167701128c0deb6c4037c0c741b96a41f42772fd3120

Download Submit
memory/1804-15-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1804-18-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2220-0-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2220-2-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2220-1-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download