1eb3701b01193c3ae359e00424d927f35a9e956cdb0b8cc9bc5081161f2cd517

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12-02-2024 03:29

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General

Target

2024-02-12_059eaef3399f06c2266b5c0f050e8b98_cryptolocker.exe
Size

61KB
MD5

059eaef3399f06c2266b5c0f050e8b98
SHA1

4b98a445073fdede0b6d39d9fe00959fd73a977d
SHA256

1eb3701b01193c3ae359e00424d927f35a9e956cdb0b8cc9bc5081161f2cd517
SHA512

f662a6d4118cc6c00ed66ce4ef14b3c28a6197895e3db1cdba8d3fb2e2b29cedf292c62d0c3868699986c686d5cf236869722b6d370417c838e889c16803e4ac
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF299o:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7w

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012267-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012267-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2716	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2116	2024-02-12_059eaef3399f06c2266b5c0f050e8b98_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
2116	2024-02-12_059eaef3399f06c2266b5c0f050e8b98_cryptolocker.exe
2716	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2116 wrote to memory of 2716	2116	2024-02-12_059eaef3399f06c2266b5c0f050e8b98_cryptolocker.exe	28
PID 2116 wrote to memory of 2716	2116	2024-02-12_059eaef3399f06c2266b5c0f050e8b98_cryptolocker.exe	28
PID 2116 wrote to memory of 2716	2116	2024-02-12_059eaef3399f06c2266b5c0f050e8b98_cryptolocker.exe	28
PID 2116 wrote to memory of 2716	2116	2024-02-12_059eaef3399f06c2266b5c0f050e8b98_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-12_059eaef3399f06c2266b5c0f050e8b98_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_059eaef3399f06c2266b5c0f050e8b98_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2116
- 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:2716

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
61KB

MD5
4f5d5afe53c38ba9368f96f0fc13e666

SHA1
1840bacd7ed173391d6ca32b59b848d00f44051a

SHA256
4809e58c148d4ca647b1afb8bcaa8fd9755552d788f7496f0e4b519601a828e2

SHA512
836be2c64b208d85ace25fff4f58ed825167b884fc6e16bc8d26d7aa064766c2e99a464f9541f60003a37f132b291380b7dda799b9e4206aae72c70867007b62

Download Submit
memory/2116-0-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2116-2-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2116-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2716-19-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download