10303a0051fb91af8c81563ef54f01b5902a9b610684aa2b02b641948f29d576

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-05-2024 02:45

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General

Target

2024-05-28_bb3df1cf7573d12a0577a4f97288ced4_cryptolocker.exe
Size

54KB
MD5

bb3df1cf7573d12a0577a4f97288ced4
SHA1

0bba210748fd1786db3a9c76c4dcf64c50a88d1f
SHA256

10303a0051fb91af8c81563ef54f01b5902a9b610684aa2b02b641948f29d576
SHA512

724b1050bb47fbb40cbe80b23bcb9fd9ee3d9bd4e661a69ba8ab0d51efb08153a873063ca457a79181f4c98b2e272921e79f2c69e8a2556f94fb6718cd8d9f18
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojaklPsL:V6a+pOtEvwDpjv

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000146fc-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000146fc-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2520	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2848	2024-05-28_bb3df1cf7573d12a0577a4f97288ced4_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 2848 wrote to memory of 2520	2848	2024-05-28_bb3df1cf7573d12a0577a4f97288ced4_cryptolocker.exe	28
PID 2848 wrote to memory of 2520	2848	2024-05-28_bb3df1cf7573d12a0577a4f97288ced4_cryptolocker.exe	28
PID 2848 wrote to memory of 2520	2848	2024-05-28_bb3df1cf7573d12a0577a4f97288ced4_cryptolocker.exe	28
PID 2848 wrote to memory of 2520	2848	2024-05-28_bb3df1cf7573d12a0577a4f97288ced4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-28_bb3df1cf7573d12a0577a4f97288ced4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-28_bb3df1cf7573d12a0577a4f97288ced4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2848
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2520

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\asih.exe

Filesize
55KB

MD5
3d8d71fd8ca43ff95d60731eb1ce4ac7

SHA1
437c134534dd6d16d1a01e3cdc18357f96a79d0e

SHA256
4b322adca68930830beb1a7dfac6618ca83c09b47a3b41a72d05a1e2c21d0fba

SHA512
637cde4c4c7b168e15fd6757e1da7fca8a1fb90c721685bcb03c58dd8328f889c8feaf54a0ba2706f38231a625aad98766c14b0e3d58cd444397e52b6e7479b3

Download Submit
memory/2520-15-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2520-16-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2848-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2848-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2848-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download