173286905888a3a9ac4a5ffbe33e956034325848db832e82ffa7d423b7c9d5b3

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06/04/2024, 09:38

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General

Target

2024-04-06_5065a907cc86cf753c45027aee9a267a_cryptolocker.exe
Size

127KB
MD5

5065a907cc86cf753c45027aee9a267a
SHA1

ca44755ae1016b9a500224adab5a5030535a6792
SHA256

173286905888a3a9ac4a5ffbe33e956034325848db832e82ffa7d423b7c9d5b3
SHA512

b605f9bd7d2610d155a1759572fd3cd325fb3bda8da5e3cf65f5e9b0f14f2d21a09690d3fc08be103bfb6b0cc70b26386c321247b767d18762cd380bc6ac767e
SSDEEP

1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxGBpB:vCA9OtEvwDpj9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224f-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224f-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1636	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2812	2024-04-06_5065a907cc86cf753c45027aee9a267a_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 2812 wrote to memory of 1636	2812	2024-04-06_5065a907cc86cf753c45027aee9a267a_cryptolocker.exe	28
PID 2812 wrote to memory of 1636	2812	2024-04-06_5065a907cc86cf753c45027aee9a267a_cryptolocker.exe	28
PID 2812 wrote to memory of 1636	2812	2024-04-06_5065a907cc86cf753c45027aee9a267a_cryptolocker.exe	28
PID 2812 wrote to memory of 1636	2812	2024-04-06_5065a907cc86cf753c45027aee9a267a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-06_5065a907cc86cf753c45027aee9a267a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-06_5065a907cc86cf753c45027aee9a267a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2812
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1636

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
128KB

MD5
9be7a1883efe1c2ea03c3a8326937ee8

SHA1
6043fb68bc265a2de97fd88b3a0cad0db29d281c

SHA256
52e757b758fb9630dbf51ab119d0e947438ccdf2538a4cf36098dd9325a568e5

SHA512
37044279211c59e78fe4ba0318e830213b10c28086adb565b63a9696d67ceef3abee06b3cdf78c8b95caccb29366866f72d883c8a00c321f0e340100be18a442

Download Submit
memory/1636-15-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1636-18-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2812-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2812-2-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2812-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download