6a51fa1629eafd159c90b54cc71792eaebc481df3677d57e7357037dfb4d4571

Analysis

max time kernel
145s
max time network
149s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
26/04/2024, 22:43

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General

Target

2024-04-26_1a8414ae784404f3f2923ef73026d184_cryptolocker.exe
Size

51KB
MD5

1a8414ae784404f3f2923ef73026d184
SHA1

72b2752923237f726431ae2ec0dc55398eb255a0
SHA256

6a51fa1629eafd159c90b54cc71792eaebc481df3677d57e7357037dfb4d4571
SHA512

70e859870365dfb93efdc9952996183d01eeaa6ed21cb71d3ffb053319143b7d0c45d33fbb08ffa8f2067279a93713c6a3f2e097427b548e36acf9ccc683e103
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAI4ncM:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7J

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012301-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012301-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2144	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2284	2024-04-26_1a8414ae784404f3f2923ef73026d184_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
2284	2024-04-26_1a8414ae784404f3f2923ef73026d184_cryptolocker.exe
2144	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2284 wrote to memory of 2144	2284	2024-04-26_1a8414ae784404f3f2923ef73026d184_cryptolocker.exe	28
PID 2284 wrote to memory of 2144	2284	2024-04-26_1a8414ae784404f3f2923ef73026d184_cryptolocker.exe	28
PID 2284 wrote to memory of 2144	2284	2024-04-26_1a8414ae784404f3f2923ef73026d184_cryptolocker.exe	28
PID 2284 wrote to memory of 2144	2284	2024-04-26_1a8414ae784404f3f2923ef73026d184_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-26_1a8414ae784404f3f2923ef73026d184_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-26_1a8414ae784404f3f2923ef73026d184_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2284
- 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:2144

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
51KB

MD5
97373ad53db26e2562f0a29876072b3f

SHA1
56a278809ec06632f6075c559676612556da5baf

SHA256
41c87b88867181f4eb60ee92b917f125c1ee70cf5eab821c5b38cab9d4ddfab8

SHA512
3e0d3b0172491aa5e2132154f2e258708210910bf0dcac0eaa810d71f86b4276180e4743f85181bac873e2e6b3b2a45065142e178e8c381e39aa335a89eee8a1

Download Submit
memory/2144-23-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2284-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2284-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2284-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download