fabcbdbe5a0ac3d07e68b380d0e569bb81ae3cc0886708106112d95c0ab5d1fb

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28/03/2024, 04:48

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-03-28_9d0bce2c4ad01a8b721d2b38080f8784_cryptolocker.exe
Size

41KB
MD5

9d0bce2c4ad01a8b721d2b38080f8784
SHA1

4f8d050d782e07de705fc23ea24db57dec330507
SHA256

fabcbdbe5a0ac3d07e68b380d0e569bb81ae3cc0886708106112d95c0ab5d1fb
SHA512

0b277562e079da04440e174de5f434058017b3137a5f1efd083a0d751778ad5039fd702896252e2582774bd2058df483cd670a77d9b365cbf5ae1a53df883013
SSDEEP

768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvhx5/xFRvM:m5nkFNMOtEvwDpjG8hhXNM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2380-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000012247-11.dat	CryptoLocker_rule2
behavioral1/memory/2380-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2264-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2264-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/2380-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2264-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2264-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/2380-0-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x0009000000012247-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2380-15-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2264-16-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2264-26-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2264	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2380	2024-03-28_9d0bce2c4ad01a8b721d2b38080f8784_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2264	2380	2024-03-28_9d0bce2c4ad01a8b721d2b38080f8784_cryptolocker.exe	28
PID 2380 wrote to memory of 2264	2380	2024-03-28_9d0bce2c4ad01a8b721d2b38080f8784_cryptolocker.exe	28
PID 2380 wrote to memory of 2264	2380	2024-03-28_9d0bce2c4ad01a8b721d2b38080f8784_cryptolocker.exe	28
PID 2380 wrote to memory of 2264	2380	2024-03-28_9d0bce2c4ad01a8b721d2b38080f8784_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-28_9d0bce2c4ad01a8b721d2b38080f8784_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_9d0bce2c4ad01a8b721d2b38080f8784_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2264

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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
41KB

MD5
9250737b322d4bdd6250dc67eba840a7

SHA1
b8aca40548ab468000e92ff3426be0361b7d3d16

SHA256
3eb150cdab91ca8a0195159010f16724707ec8bb59e0bf63e89d0ef16e95c1d4

SHA512
a6f48a1ab4016e6d25d7bd12202af5e530cae75d40102dbca2a34f90d05df3fb83e3b0d239bb998d5f70916031eeddd11cd31dd06f27527332d1002e064e7d72

Download Submit
memory/2264-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2264-18-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2264-21-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2264-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2380-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2380-1-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2380-3-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2380-2-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2380-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download