18ae63089fc9617399a83db062a4ed13fea9fc90f16ee65adf622a04afe3fb93

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
27-05-2024 04:54

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General

Target

2024-05-27_e8c584df1e93316c6519d86e22f89a6f_cryptolocker.exe
Size

43KB
MD5

e8c584df1e93316c6519d86e22f89a6f
SHA1

c24ac0bb7b9c037cf0c318dc29aa87ea81b98afc
SHA256

18ae63089fc9617399a83db062a4ed13fea9fc90f16ee65adf622a04afe3fb93
SHA512

b3f2a4d5ff6fc3aa59f3758206bc556cb3f9fe3dc1c9ea1754d1eba2c4f09b092fce900ac50129f893122f0a7b12af1abc9982bca08eb5cfd73c955643dd5284
SSDEEP

384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDUad/:bm74zYcgT/EkM0ryfjPd/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/3008-0-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000e00000001226c-11.dat	CryptoLocker_rule2
behavioral1/memory/3008-15-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3052-16-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3052-26-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3052	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
3008	2024-05-27_e8c584df1e93316c6519d86e22f89a6f_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 3008 wrote to memory of 3052	3008	2024-05-27_e8c584df1e93316c6519d86e22f89a6f_cryptolocker.exe	28
PID 3008 wrote to memory of 3052	3008	2024-05-27_e8c584df1e93316c6519d86e22f89a6f_cryptolocker.exe	28
PID 3008 wrote to memory of 3052	3008	2024-05-27_e8c584df1e93316c6519d86e22f89a6f_cryptolocker.exe	28
PID 3008 wrote to memory of 3052	3008	2024-05-27_e8c584df1e93316c6519d86e22f89a6f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-27_e8c584df1e93316c6519d86e22f89a6f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-27_e8c584df1e93316c6519d86e22f89a6f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3008
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3052

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
43KB

MD5
9e3d57269a8988753afa8f5fddfd09fd

SHA1
dab101f2cc60b0f99742437d39d6e0e38b2cc247

SHA256
645ee42b85a9b2a77a5ba3c3cdce1a2192ff0e7d1ea18c7bb50ad8f73af5753e

SHA512
c869ee7d994cd6e80afec08a192f084e381862c50632d769493ffd3b37c437bfd48e8e7f5a13731d513c4dbeb7601c6ae6656c31a48846b9e792e8746c5ea6d3

Download Submit
memory/3008-0-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/3008-1-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/3008-2-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/3008-9-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/3008-15-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/3052-16-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/3052-18-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/3052-25-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/3052-26-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download