dec875f59fe278893404827f9987e1d961d87d845b0af73b2602e35ecaa1bd40

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/03/2024, 00:26

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General

Target

2024-03-26_bb4e4cb9c547e9058930643f1177e0f2_cryptolocker.exe
Size

50KB
MD5

bb4e4cb9c547e9058930643f1177e0f2
SHA1

3cb9199191a9e449b48f84199293f037cc7cec08
SHA256

dec875f59fe278893404827f9987e1d961d87d845b0af73b2602e35ecaa1bd40
SHA512

9af7aacb6e170ef6cf192af19bd306e921b79885458615a87ec184cabad8bb9e58726cffa9a05387c5a78c824bba123b1e721c547b303c976768d69872e40ae8
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37Yl6dIKld5CSO6:bgGYcA/53GAA6y37Q6dI+d5N

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a0000000141af-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2604	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
3012	2024-03-26_bb4e4cb9c547e9058930643f1177e0f2_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 3012 wrote to memory of 2604	3012	2024-03-26_bb4e4cb9c547e9058930643f1177e0f2_cryptolocker.exe	28
PID 3012 wrote to memory of 2604	3012	2024-03-26_bb4e4cb9c547e9058930643f1177e0f2_cryptolocker.exe	28
PID 3012 wrote to memory of 2604	3012	2024-03-26_bb4e4cb9c547e9058930643f1177e0f2_cryptolocker.exe	28
PID 3012 wrote to memory of 2604	3012	2024-03-26_bb4e4cb9c547e9058930643f1177e0f2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-26_bb4e4cb9c547e9058930643f1177e0f2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_bb4e4cb9c547e9058930643f1177e0f2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2604

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
50KB

MD5
85587fbb86d2abf0dc178da9ff7360d0

SHA1
ab2345094e22209cf77daace8a89ebd6f70f6fb1

SHA256
214fc9a51c347d5a0e736ffab4aa09b27d1d98761f28504919f0cfdbe05a9349

SHA512
86dbdefd541548f63f4e18e68a9dea337a296c6236d5de890884364dfae2c656bf93f245d0590fdc04d1e180ba498365bc093b7cd6a6be3c55d0687321deeabe

Download Submit
memory/2604-16-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2604-15-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/3012-0-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/3012-2-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/3012-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download