751d4e1e3630ab5f09a3a23c307989046065b0345311b69c2262d8444d9dbfd5

Analysis

max time kernel
146s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27/02/2024, 20:26

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General

Target

2024-02-27_091cc984d2f1c97434aa6fa003930737_cryptolocker.exe
Size

121KB
MD5

091cc984d2f1c97434aa6fa003930737
SHA1

0e75b59c2f9d427c0bb228aca76c4165606fd25e
SHA256

751d4e1e3630ab5f09a3a23c307989046065b0345311b69c2262d8444d9dbfd5
SHA512

71c6aa38594bb1b9a7992dc71fb374ab959e309bc600c5d89c0438d74acdacc350bad6259cf0b85fbfacad2cff4029843eac1addd7029530325c0396eec3b083
SSDEEP

1536:u6QFElP6n+gWMOtEvwDpjJGYQbN/PKwMg8:u6a++OtEvwDpj6zY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000800000001227e-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000800000001227e-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2868	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1676	2024-02-27_091cc984d2f1c97434aa6fa003930737_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 1676 wrote to memory of 2868	1676	2024-02-27_091cc984d2f1c97434aa6fa003930737_cryptolocker.exe	28
PID 1676 wrote to memory of 2868	1676	2024-02-27_091cc984d2f1c97434aa6fa003930737_cryptolocker.exe	28
PID 1676 wrote to memory of 2868	1676	2024-02-27_091cc984d2f1c97434aa6fa003930737_cryptolocker.exe	28
PID 1676 wrote to memory of 2868	1676	2024-02-27_091cc984d2f1c97434aa6fa003930737_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-27_091cc984d2f1c97434aa6fa003930737_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-27_091cc984d2f1c97434aa6fa003930737_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1676
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2868

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
122KB

MD5
58e373ba65b3183779a0a08362fa356a

SHA1
b4c502379626e88da91fd548cc4903c0b2a828e0

SHA256
9d29fbcf35b8415a770e05c4f3d1d8dc9a8a65cffa2fafecadd7a4a17c0f4b6b

SHA512
f5fa1f510feeca1a2e55eb6df9c5b564c31f6db6175525a8b4aa0a9eb1d6d2c140a3dfa232b8149ecf5899226bd4a1565599b22e5bd6ea6a1590c2ff2a7b9ecf

Download Submit
memory/1676-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1676-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1676-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2868-15-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2868-16-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download