6bf1b61f64ca8143f6adfbfb34a12463c7e384e49d3033bd3683868e970616b9

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
06/03/2024, 21:47

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General

Target

2024-03-06_944ccbdfe42b6e1b9ee459a6dc1218f2_cryptolocker.exe
Size

36KB
MD5

944ccbdfe42b6e1b9ee459a6dc1218f2
SHA1

101687bd9fbd714b5e85d7d01006caf81c0e8bb1
SHA256

6bf1b61f64ca8143f6adfbfb34a12463c7e384e49d3033bd3683868e970616b9
SHA512

aeb3da3392a7ed22ea2a6cb4a95c2899697200d97f925fc1b8dbe462787283f6cfc491fd2358e73393d7fd2b88b74d519b714c6ad137d1bdce9b18762a4fe302
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkeS:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkj

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2064-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001225d-11.dat	CryptoLocker_rule2
behavioral1/memory/2064-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2716-20-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2064-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c00000001225d-11.dat	CryptoLocker_set1
behavioral1/memory/2064-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2716-20-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2716	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2064	2024-03-06_944ccbdfe42b6e1b9ee459a6dc1218f2_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 2064 wrote to memory of 2716	2064	2024-03-06_944ccbdfe42b6e1b9ee459a6dc1218f2_cryptolocker.exe	28
PID 2064 wrote to memory of 2716	2064	2024-03-06_944ccbdfe42b6e1b9ee459a6dc1218f2_cryptolocker.exe	28
PID 2064 wrote to memory of 2716	2064	2024-03-06_944ccbdfe42b6e1b9ee459a6dc1218f2_cryptolocker.exe	28
PID 2064 wrote to memory of 2716	2064	2024-03-06_944ccbdfe42b6e1b9ee459a6dc1218f2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-06_944ccbdfe42b6e1b9ee459a6dc1218f2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_944ccbdfe42b6e1b9ee459a6dc1218f2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2064
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2716

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
36KB

MD5
b2fd2a2e84e49667fd236886d30382cb

SHA1
e6a59732d898663f4baa650143a0194aa97c90d3

SHA256
283bc6bf615db7ebe678e24678dbac5ddb970d37f4bb23a5b4b5094bd81bd847

SHA512
f78e3c626e56e3ebb420ffa85263defbebc96aac56f796eb9f4ddec5f1d5a600f87b25f902ce036816d4e8c34ceb90d13b199b9d0683cdfe12171b06ff21886a

Download Submit
memory/2064-1-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2064-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2064-2-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2064-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2064-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2716-17-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2716-18-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2716-20-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download