08f5431286a95ef52c4b9f4e15dcec84c2df587cafcba7eb7c762a7f74fa0007

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25-04-2024 04:16

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General

Target

2024-04-25_ff746224b17a75c716d89e2e116bcae3_cryptolocker.exe
Size

64KB
MD5

ff746224b17a75c716d89e2e116bcae3
SHA1

1c6ebed4b11e752ebe9cd3e2109b36d23c14fea6
SHA256

08f5431286a95ef52c4b9f4e15dcec84c2df587cafcba7eb7c762a7f74fa0007
SHA512

102f7810931e804e3d325a7b7a2f0c67fa8f4a49b878e54379c13de84b09e78be760e61d1dd3e4cb6d4f5391fc9df51b1aef1aa5d8de350583d8b43e5e49212d
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF299h:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7p

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000012248-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000012248-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2748	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2412	2024-04-25_ff746224b17a75c716d89e2e116bcae3_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
2412	2024-04-25_ff746224b17a75c716d89e2e116bcae3_cryptolocker.exe
2748	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 2748	2412	2024-04-25_ff746224b17a75c716d89e2e116bcae3_cryptolocker.exe	28
PID 2412 wrote to memory of 2748	2412	2024-04-25_ff746224b17a75c716d89e2e116bcae3_cryptolocker.exe	28
PID 2412 wrote to memory of 2748	2412	2024-04-25_ff746224b17a75c716d89e2e116bcae3_cryptolocker.exe	28
PID 2412 wrote to memory of 2748	2412	2024-04-25_ff746224b17a75c716d89e2e116bcae3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-25_ff746224b17a75c716d89e2e116bcae3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-25_ff746224b17a75c716d89e2e116bcae3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2412
- 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:2748

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
64KB

MD5
47c0e972bd03db777d114e6fd776a6e2

SHA1
39e7371ac2309c76d3a394d7dcb3ed9ae649083b

SHA256
cba7b341a9ac0c95c2b26d5f157bab5580f46ac66aed99c8ebad9df19a3c5f3a

SHA512
e60d39abe6a0b95b3026cd808a1af457da0d9fed76f966dc7efd07dcfeb831b45b9fff59cfc99a9929262485abaec951df664b288d27250308acbd287ca7f90a

Download Submit
memory/2412-0-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2412-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2412-8-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2748-23-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download