0e7ca921e13c5c3895f122d811be5528d8598d5cd144e18c557ad3c648dc85fc

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
14/05/2024, 04:40

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General

Target

2024-05-14_abe5a170176874c5ab7dfcc204d87a36_cryptolocker.exe
Size

30KB
MD5

abe5a170176874c5ab7dfcc204d87a36
SHA1

594672d8e43f0626c6a02e7d5045b81f72dd83a0
SHA256

0e7ca921e13c5c3895f122d811be5528d8598d5cd144e18c557ad3c648dc85fc
SHA512

619141a9b5eacea9faf09c5dd29c5cec2163869b57fc93921f7d4a87dc2784760eb51c86406703f6e557ad9765b66aac664dece03515df0a39b692e212c0b71e
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGbNAKSjNf2K:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xo

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000015cbd-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000015cbd-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2548	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2312	2024-05-14_abe5a170176874c5ab7dfcc204d87a36_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
2312	2024-05-14_abe5a170176874c5ab7dfcc204d87a36_cryptolocker.exe
2548	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 2548	2312	2024-05-14_abe5a170176874c5ab7dfcc204d87a36_cryptolocker.exe	28
PID 2312 wrote to memory of 2548	2312	2024-05-14_abe5a170176874c5ab7dfcc204d87a36_cryptolocker.exe	28
PID 2312 wrote to memory of 2548	2312	2024-05-14_abe5a170176874c5ab7dfcc204d87a36_cryptolocker.exe	28
PID 2312 wrote to memory of 2548	2312	2024-05-14_abe5a170176874c5ab7dfcc204d87a36_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-14_abe5a170176874c5ab7dfcc204d87a36_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-14_abe5a170176874c5ab7dfcc204d87a36_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2312
- 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:2548

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
30KB

MD5
907bfbe59f244a9363486aa78d6bca43

SHA1
2e4852cf35c55d570141e7ef64a00e5b76d0ac1b

SHA256
5b7fb5c65889746dd86a6a2418535dd2c5f7cb2d2acabc92357a62eff2c01ddb

SHA512
7b0cd4b94eeee2e1590bfec9e4bbe73156a3400d7741558a7ef37355d11ab6e1c4d8e0c2b53c7299ef7ee7a15ed34cc49ee30b61d05fb3f9322cea73b50c9abe

Download Submit
memory/2312-0-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2312-7-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2312-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2548-23-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download