ed23d6fc40dc67a224c0d66ef25233725f8d5172c816565de6fbe76658e354a4

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
26/04/2024, 23:25

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General

Target

2024-04-26_70e6c0c228136797618f2fcd0422dff0_cryptolocker.exe
Size

51KB
MD5

70e6c0c228136797618f2fcd0422dff0
SHA1

f457430e0c91ed0c835865767204807b3ecb432e
SHA256

ed23d6fc40dc67a224c0d66ef25233725f8d5172c816565de6fbe76658e354a4
SHA512

6931ae6f9b737934d50ed9174f65940b6ea1188d9138712a4f7e2ee253614fa005c5d8ab8172b28b2afea05f0d3cdaac6674272e92770e302894a479e0621848
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIy:aq7tdgI2MyzNORQtOflIwoHNV2XBFV71

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000013adc-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000013adc-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2476	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2036	2024-04-26_70e6c0c228136797618f2fcd0422dff0_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
2036	2024-04-26_70e6c0c228136797618f2fcd0422dff0_cryptolocker.exe
2476	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 2476	2036	2024-04-26_70e6c0c228136797618f2fcd0422dff0_cryptolocker.exe	28
PID 2036 wrote to memory of 2476	2036	2024-04-26_70e6c0c228136797618f2fcd0422dff0_cryptolocker.exe	28
PID 2036 wrote to memory of 2476	2036	2024-04-26_70e6c0c228136797618f2fcd0422dff0_cryptolocker.exe	28
PID 2036 wrote to memory of 2476	2036	2024-04-26_70e6c0c228136797618f2fcd0422dff0_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-26_70e6c0c228136797618f2fcd0422dff0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-26_70e6c0c228136797618f2fcd0422dff0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2036
- 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:2476

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

C:\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
51KB

MD5
0e87202ddddcd8e280bb70b3930c745d

SHA1
008d197dafaf5e3cfef3b48e886d6863e8e7b57b

SHA256
aac8f431dac02571297eff944dd274f2b0106a22d15b939dec02043bd2ea45bd

SHA512
4844663c33eebf921b1fc9b3056346f884d115cb883ded328c56c0c8d05bc4296eda4f4cac18683d14e31d3f3e73072fbcb0acfc752f57b37febc9759deb95ff

Download Submit
memory/2036-8-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2036-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2036-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2476-23-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download