60e0a81bd0803ba70ecaaaa0d2abb0ed54c4c74bf60d32cc78ef076c1bcb7b61

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/04/2024, 05:37

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General

Target

2024-04-23_a343e603b25ffb8544c010209912edc4_cryptolocker.exe
Size

64KB
MD5

a343e603b25ffb8544c010209912edc4
SHA1

e23603620bb31101c0dcf39dbac160eb6ec75463
SHA256

60e0a81bd0803ba70ecaaaa0d2abb0ed54c4c74bf60d32cc78ef076c1bcb7b61
SHA512

6cd96d32c938f1acd9b40e4a6bd955ffec42f325b0d0140f64cc41aaf386dd959c1178f49788042d3cb0c882e228366f082c6495c5586e4311e58aca8cb0d9b4
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x/9lfL+gniDScGC:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7b

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000012248-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000012248-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2644	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2112	2024-04-23_a343e603b25ffb8544c010209912edc4_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
2112	2024-04-23_a343e603b25ffb8544c010209912edc4_cryptolocker.exe
2644	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2644	2112	2024-04-23_a343e603b25ffb8544c010209912edc4_cryptolocker.exe	28
PID 2112 wrote to memory of 2644	2112	2024-04-23_a343e603b25ffb8544c010209912edc4_cryptolocker.exe	28
PID 2112 wrote to memory of 2644	2112	2024-04-23_a343e603b25ffb8544c010209912edc4_cryptolocker.exe	28
PID 2112 wrote to memory of 2644	2112	2024-04-23_a343e603b25ffb8544c010209912edc4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-23_a343e603b25ffb8544c010209912edc4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-23_a343e603b25ffb8544c010209912edc4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2112
- 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:2644

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
64KB

MD5
98917419d227704834fb7675414b7a7c

SHA1
219c5cfec99e5138fc4145b5915eac1733b23dd5

SHA256
fc32e932d0e8c6efd564a3b902b62b337445e0b73c367bd6a726ce9222946d02

SHA512
7b52c6d44fa47dcdfb1158f12d83ff8126d6b78b364b85443ce1c5a19f3ea3b221301e86c6a81f03a898e78ac9f12518c6b69ba244e7b0b245b0149ca9bd76aa

Download Submit
memory/2112-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2112-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2112-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2644-23-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download