2ea0b7734253d2ee4006c1381e970a11620e689253b25895e3407e9c147105bc

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-02-2024 07:36

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General

Target

2024-02-22_d511a09ff6dff596d5c168bdcea0b592_cryptolocker.exe
Size

63KB
MD5

d511a09ff6dff596d5c168bdcea0b592
SHA1

e28e1f77d5b7d1b3a8dab7f82c3bcb16ced7218b
SHA256

2ea0b7734253d2ee4006c1381e970a11620e689253b25895e3407e9c147105bc
SHA512

77452242cd26a284898d14855f87f14eb2ee2f5ba9e454bf999dc16c5123e46c441819f7847d2c869de1bef4bf79ee1ec045c619779659a682ea00010983a86b
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x/9lfL+gniDScGx:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7k

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012266-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012266-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2068	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2180	2024-02-22_d511a09ff6dff596d5c168bdcea0b592_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
2180	2024-02-22_d511a09ff6dff596d5c168bdcea0b592_cryptolocker.exe
2068	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 2068	2180	2024-02-22_d511a09ff6dff596d5c168bdcea0b592_cryptolocker.exe	28
PID 2180 wrote to memory of 2068	2180	2024-02-22_d511a09ff6dff596d5c168bdcea0b592_cryptolocker.exe	28
PID 2180 wrote to memory of 2068	2180	2024-02-22_d511a09ff6dff596d5c168bdcea0b592_cryptolocker.exe	28
PID 2180 wrote to memory of 2068	2180	2024-02-22_d511a09ff6dff596d5c168bdcea0b592_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-22_d511a09ff6dff596d5c168bdcea0b592_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_d511a09ff6dff596d5c168bdcea0b592_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2180
- 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:2068

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
63KB

MD5
c8bd3b3e3c168cf649e54f860e6a2b41

SHA1
a820fdf2f9e2cfa96343f3ff80d7064cfa49c21e

SHA256
678c213c986348807bed7bf502dd31cbfbbf56a5a01a50d4813a734180083a99

SHA512
59bcdad70c979afbfc37dbf08a29752b5a41367e5448e51f3e9d5957ab2a88c1f7ef4f0b4bc1011439b8ba7f305e1483b87e3881519d535c0a9eaea1e8d8d374

Download Submit
memory/2068-16-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2180-0-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/2180-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2180-7-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download