bb12173a7f592bef93a07913640c07fec759a334c34058082cc773d5aa47888f

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10-03-2024 19:44

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General

Target

2024-03-10_2f7270a9e1c5d4062ed7533f998ed277_cryptolocker.exe
Size

50KB
MD5

2f7270a9e1c5d4062ed7533f998ed277
SHA1

1c46fa82169a5623e1af5edf9dde6934ea59b8e2
SHA256

bb12173a7f592bef93a07913640c07fec759a334c34058082cc773d5aa47888f
SHA512

9d84edad2f263bb74cbf91a1951885788f1d43c090f3a904a0e53ccedb8036d2767123e1d2eac25b34b013de9d2b1efb8fa2297128f659b6d5eb16c5bdbf6b6a
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAICh:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7V

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001224c-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001224c-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1960	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2892	2024-03-10_2f7270a9e1c5d4062ed7533f998ed277_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2892	2024-03-10_2f7270a9e1c5d4062ed7533f998ed277_cryptolocker.exe
1960	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2892 wrote to memory of 1960	2892	2024-03-10_2f7270a9e1c5d4062ed7533f998ed277_cryptolocker.exe	28
PID 2892 wrote to memory of 1960	2892	2024-03-10_2f7270a9e1c5d4062ed7533f998ed277_cryptolocker.exe	28
PID 2892 wrote to memory of 1960	2892	2024-03-10_2f7270a9e1c5d4062ed7533f998ed277_cryptolocker.exe	28
PID 2892 wrote to memory of 1960	2892	2024-03-10_2f7270a9e1c5d4062ed7533f998ed277_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-10_2f7270a9e1c5d4062ed7533f998ed277_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-10_2f7270a9e1c5d4062ed7533f998ed277_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2892
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:1960

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\hurok.exe

Filesize
50KB

MD5
f2fcd865f2838202d78fdd8cac41c024

SHA1
d49725f45858b1ad01679e5d63d26db7404f0ff5

SHA256
aab35235adaa3eda035bb1b50bd80b43cffba9c8a20ad9296d4bc2e033d1e924

SHA512
23cec8d83e6dc35fb54f120888a4a8b1063cb1057f37fd58530410ac91af50dba0c6d3de963cae49ac66b69d1103304dc86cff2d6124443fb110cdbd26064061

Download Submit
memory/1960-16-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2892-0-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2892-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2892-2-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download