1e56b5282c1375d5eb733762e7fd109d1504d2a226637990aab9b6aefc070282

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
12/03/2024, 05:49

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General

Target

2024-03-12_a6f9164db2efe73a19c23eaabbd4bae4_cryptolocker.exe
Size

61KB
MD5

a6f9164db2efe73a19c23eaabbd4bae4
SHA1

ebdae4e5a941e95c121c6296c713f21a1944d1da
SHA256

1e56b5282c1375d5eb733762e7fd109d1504d2a226637990aab9b6aefc070282
SHA512

a95be8a6ff0bea2929b2fab8317fb189550f85518d485b20b7bf966c06affd294a79a2f211d96cbd7659c9f2c67f5882f06d6f39c10ea852dade73967ccfa62e
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x/9lfL+gniDSAaN:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7i

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 2 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012262-10.dat	CryptoLocker_rule2
behavioral1/files/0x000c000000012262-14.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012262-10.dat	CryptoLocker_set1
behavioral1/files/0x000c000000012262-14.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2800	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2244	2024-03-12_a6f9164db2efe73a19c23eaabbd4bae4_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
2244	2024-03-12_a6f9164db2efe73a19c23eaabbd4bae4_cryptolocker.exe
2800	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 2800	2244	2024-03-12_a6f9164db2efe73a19c23eaabbd4bae4_cryptolocker.exe	28
PID 2244 wrote to memory of 2800	2244	2024-03-12_a6f9164db2efe73a19c23eaabbd4bae4_cryptolocker.exe	28
PID 2244 wrote to memory of 2800	2244	2024-03-12_a6f9164db2efe73a19c23eaabbd4bae4_cryptolocker.exe	28
PID 2244 wrote to memory of 2800	2244	2024-03-12_a6f9164db2efe73a19c23eaabbd4bae4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-12_a6f9164db2efe73a19c23eaabbd4bae4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_a6f9164db2efe73a19c23eaabbd4bae4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2244
- 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:2800

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
61KB

MD5
ea0796d35a95b909ff012497cf0a04b1

SHA1
37485c77a09748031bdf17a50e2662644f9548ff

SHA256
9db4b70e8ea6607673c5f8f68a943fc1738719ceac5770cd0fdb1a1ee4ca7d5d

SHA512
8030a95f59e966df518f560fb59b20946e9e5643c1f689ffbaa517ea4b97677421353120586a85436f89fb703d271afb356de206719a393ca2e2bced390f0169

Download Submit
memory/2244-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2244-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2244-2-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2800-19-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download