309a8af48c6763f2f4ed3c1574e1800177f00254c036201f36f799a49c391791

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28/03/2024, 11:28

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General

Target

2024-03-28_1760e58c5a53227526fbd15f9ceefe12_cryptolocker.exe
Size

39KB
MD5

1760e58c5a53227526fbd15f9ceefe12
SHA1

495827a90bf38fb80ca02c0410ddb8b59a7d8f60
SHA256

309a8af48c6763f2f4ed3c1574e1800177f00254c036201f36f799a49c391791
SHA512

8884e48432c2b36196c1f78bacd2709fa427c177bd95868648dd900b81ea5e2077ab5698a6a3f897f43e4a0dfeb78131bbeb4e57b35c856e71db31c40aabc849
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5axe3q:V6QFElP6n+gMQMOtEvwDpjyaYa+q

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224c-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224c-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2548	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1736	2024-03-28_1760e58c5a53227526fbd15f9ceefe12_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 1736 wrote to memory of 2548	1736	2024-03-28_1760e58c5a53227526fbd15f9ceefe12_cryptolocker.exe	28
PID 1736 wrote to memory of 2548	1736	2024-03-28_1760e58c5a53227526fbd15f9ceefe12_cryptolocker.exe	28
PID 1736 wrote to memory of 2548	1736	2024-03-28_1760e58c5a53227526fbd15f9ceefe12_cryptolocker.exe	28
PID 1736 wrote to memory of 2548	1736	2024-03-28_1760e58c5a53227526fbd15f9ceefe12_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-28_1760e58c5a53227526fbd15f9ceefe12_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_1760e58c5a53227526fbd15f9ceefe12_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2548

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
39KB

MD5
b48cd8e38535bc4dd13362c52975b4d3

SHA1
540254960dc1e8fa8187e05f09aa682662f3ebdb

SHA256
8c1472ef7f187d5be20e7296d9f6e9122386837d73160f1e267b702078ccca74

SHA512
788aff032c76044251db1108d986ab0a026634fda06417335d933bb4727fe2c5a5dd22f0a774b813b4f0a7f022c2d27a2dd0e01f07545cd2648e18fc9b088839

Download Submit
memory/1736-0-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1736-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1736-2-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2548-22-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2548-15-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download