a6ce124b07e25218491d77578e3f6542308bfebb7d976c466b78c9338476cb62

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08/06/2024, 18:47

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General

Target

2024-06-08_13bc7e1640fc094e3ca500febbe33a6d_cryptolocker.exe
Size

62KB
MD5

13bc7e1640fc094e3ca500febbe33a6d
SHA1

a7f66307e205d9e166c70879c10930c9bf578f54
SHA256

a6ce124b07e25218491d77578e3f6542308bfebb7d976c466b78c9338476cb62
SHA512

4371ef5f371f922b970f8278d9a18c019b9a178e40329ac84c9c8d8dc48ddcf25c21fa95f86a141b1fb90e556fbc61946ec49d46e23f986b3cc0d3c38a897f9e
SSDEEP

1536:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxWTAO:3WHsIOtEvwDpjoHYf

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1048-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000012674-11.dat	CryptoLocker_rule2
behavioral1/memory/2612-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2612-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1048-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000012674-11.dat	CryptoLocker_set1
behavioral1/memory/2612-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2612-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2612	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1048	2024-06-08_13bc7e1640fc094e3ca500febbe33a6d_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 1048 wrote to memory of 2612	1048	2024-06-08_13bc7e1640fc094e3ca500febbe33a6d_cryptolocker.exe	28
PID 1048 wrote to memory of 2612	1048	2024-06-08_13bc7e1640fc094e3ca500febbe33a6d_cryptolocker.exe	28
PID 1048 wrote to memory of 2612	1048	2024-06-08_13bc7e1640fc094e3ca500febbe33a6d_cryptolocker.exe	28
PID 1048 wrote to memory of 2612	1048	2024-06-08_13bc7e1640fc094e3ca500febbe33a6d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-08_13bc7e1640fc094e3ca500febbe33a6d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-08_13bc7e1640fc094e3ca500febbe33a6d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1048
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2612

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\misid.exe

Filesize
62KB

MD5
a8a5599eb988b3f389f11f0e6f07a7ae

SHA1
e906998e7afbee015ca955920f0d40ac3dcbb306

SHA256
ee925bed3cbe836765d6b1c379531e15ece966fc1f40b190fa43223e54d4e812

SHA512
67b7bc21d1139b58ebc773bc87c198989044b92c6bb8603b014600126cc03ea6612312ec8795d7ad4f99a43a3c80050aae71580b8fc9bb2fb5b09c25068fe2a0

Download Submit
memory/1048-9-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1048-8-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1048-1-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/1048-0-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2612-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2612-24-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2612-25-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download