87e2969f0834cbcb3302beef33a10259157fcbab16af383743900fcd5e9454c7

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
20/06/2024, 04:23

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General

Target

2024-06-20_3e4bcd3646436cb2c94fcabdbb8fa409_cryptolocker.exe
Size

45KB
MD5

3e4bcd3646436cb2c94fcabdbb8fa409
SHA1

609b6b96499e9e76340781668806bfd9e94c74ae
SHA256

87e2969f0834cbcb3302beef33a10259157fcbab16af383743900fcd5e9454c7
SHA512

f5e84196aad41efcc525523230c75219303fa3b70cfc2d132ff118d4d6837c3871a16d027fed1b3f7f3b83f9e43cbc0e64c5e69ae51949394fbe93af2de78684
SSDEEP

384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDUk3b+N3:bm74zYcgT/EkM0ryfjd3W3

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1068-0-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000e00000001226c-11.dat	CryptoLocker_rule2
behavioral1/memory/1068-15-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2924-16-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2924-26-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2924	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1068	2024-06-20_3e4bcd3646436cb2c94fcabdbb8fa409_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 1068 wrote to memory of 2924	1068	2024-06-20_3e4bcd3646436cb2c94fcabdbb8fa409_cryptolocker.exe	28
PID 1068 wrote to memory of 2924	1068	2024-06-20_3e4bcd3646436cb2c94fcabdbb8fa409_cryptolocker.exe	28
PID 1068 wrote to memory of 2924	1068	2024-06-20_3e4bcd3646436cb2c94fcabdbb8fa409_cryptolocker.exe	28
PID 1068 wrote to memory of 2924	1068	2024-06-20_3e4bcd3646436cb2c94fcabdbb8fa409_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-20_3e4bcd3646436cb2c94fcabdbb8fa409_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-20_3e4bcd3646436cb2c94fcabdbb8fa409_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1068
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2924

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
45KB

MD5
7aa91d52d5c2b2de583f772cd87bf607

SHA1
8bf96b57eb7d394eb7a57eea93f13393addfbc10

SHA256
95549eafd4eed45f25bcec87615504917846af203e34250f07d0d4bdda14acaf

SHA512
df278db30c6139bc07c3dffe4f301b14aaf07c49c208d613b2d634bd0abdac2c040a4176c8731707488ee0c6a9c9aa5399d70823ed2fc8cbdb3bab0d84fd2636

Download Submit
memory/1068-0-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/1068-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1068-9-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/1068-1-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/1068-15-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2924-16-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2924-25-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/2924-18-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

Filesize
24KB

Download
memory/2924-26-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download