58b6a0a02348e7fd6070da2463160bf2768ef5e1c33630ed2530b81254ad153e

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
06/03/2024, 13:24

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General

Target

2024-03-06_08f1a08042f5638334403802298e043e_cryptolocker.exe
Size

90KB
MD5

08f1a08042f5638334403802298e043e
SHA1

b5cec15a9d03e2d453ed1a2bbcd95c1f51d70af5
SHA256

58b6a0a02348e7fd6070da2463160bf2768ef5e1c33630ed2530b81254ad153e
SHA512

3f369715d2d9a3fd0e38184a23b14c6aec67245ef3a5b00ad8c28bf63bda4cde5525a1b619063f353a28761a3a0d7a287d69f2ece57e3eed736cbce5202594b9
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwMgW:V6a+pOtEvwDpjtzS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000013a11-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000013a11-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2124	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3040	2024-03-06_08f1a08042f5638334403802298e043e_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 3040 wrote to memory of 2124	3040	2024-03-06_08f1a08042f5638334403802298e043e_cryptolocker.exe	28
PID 3040 wrote to memory of 2124	3040	2024-03-06_08f1a08042f5638334403802298e043e_cryptolocker.exe	28
PID 3040 wrote to memory of 2124	3040	2024-03-06_08f1a08042f5638334403802298e043e_cryptolocker.exe	28
PID 3040 wrote to memory of 2124	3040	2024-03-06_08f1a08042f5638334403802298e043e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-06_08f1a08042f5638334403802298e043e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_08f1a08042f5638334403802298e043e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2124

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
91KB

MD5
5ccd7a7c38a548cca1812e553cc4201b

SHA1
7bd6c3a531704bec115beb23814b0f7144c59719

SHA256
778dfd9802a9267b965ad6b411eaa439f1d7e9790cf808e6ebe380a3964c96cf

SHA512
54f3fd2c83194f61a7317c10f9fb293ee93330c21df2e69e2e8d2652327e59c9d91246f5c1543f822eec76f7753c051d845f3cb89fb84333e62dab29a1089ae9

Download Submit
memory/2124-16-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2124-15-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/3040-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/3040-1-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/3040-8-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download