86571e3a12f4369c32db5c276d245d10533f0d27a3125d5f20fac5de6bdb7db7

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
26/03/2024, 23:47

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General

Target

2024-03-26_b3b374d924d026ef0aa83e2a9859556c_cryptolocker.exe
Size

33KB
MD5

b3b374d924d026ef0aa83e2a9859556c
SHA1

4354ae36f6d8ad42c4258dc039bfcf33e8a792cf
SHA256

86571e3a12f4369c32db5c276d245d10533f0d27a3125d5f20fac5de6bdb7db7
SHA512

885b0d5a3f513ecd84c3d0e2cfaa67ac1527f90434cef89886a1bce4e6144e66ccd4ba51663f2bcd2df354d20a0b6bfa2096829f5b0403eb0948423c37a7ed4b
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunvsYo83:bA74zYcgT/Ekd0ryfjPIunvsi3

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012320-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1744	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2372	2024-03-26_b3b374d924d026ef0aa83e2a9859556c_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 2372 wrote to memory of 1744	2372	2024-03-26_b3b374d924d026ef0aa83e2a9859556c_cryptolocker.exe	28
PID 2372 wrote to memory of 1744	2372	2024-03-26_b3b374d924d026ef0aa83e2a9859556c_cryptolocker.exe	28
PID 2372 wrote to memory of 1744	2372	2024-03-26_b3b374d924d026ef0aa83e2a9859556c_cryptolocker.exe	28
PID 2372 wrote to memory of 1744	2372	2024-03-26_b3b374d924d026ef0aa83e2a9859556c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-26_b3b374d924d026ef0aa83e2a9859556c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_b3b374d924d026ef0aa83e2a9859556c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1744

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\hasfj.exe

Filesize
33KB

MD5
9f7d3b03d73a42f29e70d3ce0a4657d7

SHA1
dcbbf814cdbb533878e393c12d67e44e3432ba51

SHA256
c11c038bf6bf7c61f89d9b3e8cf2510143fadfedd7c60121424d7c709bd78a0b

SHA512
6c4bfb5dfce4a195c23c0dff70fc02b8ff59e9c02c9e95442e2e280dc445d2e3df8f41daf5ce0ea415d32c4150750ad9669268153b151afab82d0e6c8774f38c

Download Submit
memory/1744-15-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/1744-22-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2372-0-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/2372-1-0x0000000002D00000-0x0000000002D06000-memory.dmp

Filesize
24KB

Download
memory/2372-8-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download