8dd6d272fe48363e5f47300a7ed23aa784674f17b1041c0022be835ad9aa5aed

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
13-02-2024 05:17

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General

Target

2024-02-13_79e945e336d7229c410e5795741d60a1_cryptolocker.exe
Size

47KB
MD5

79e945e336d7229c410e5795741d60a1
SHA1

5396601265a53077d72d515cf6cb09f3bbe7c10f
SHA256

8dd6d272fe48363e5f47300a7ed23aa784674f17b1041c0022be835ad9aa5aed
SHA512

5a4e6cb96af5fc8815c5d64e1f60344a8a9164afc39d8b8e8b4119eadfa11fcb443f3f016ed85c22bd6048ad725b9ad359066a8cc240c479f7a68b379c952038
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3wwsr0B:X6QFElP6n+gJQMOtEvwDpjBDu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00080000000120f8-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x00080000000120f8-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1464	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1964	2024-02-13_79e945e336d7229c410e5795741d60a1_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 1964 wrote to memory of 1464	1964	2024-02-13_79e945e336d7229c410e5795741d60a1_cryptolocker.exe	28
PID 1964 wrote to memory of 1464	1964	2024-02-13_79e945e336d7229c410e5795741d60a1_cryptolocker.exe	28
PID 1964 wrote to memory of 1464	1964	2024-02-13_79e945e336d7229c410e5795741d60a1_cryptolocker.exe	28
PID 1964 wrote to memory of 1464	1964	2024-02-13_79e945e336d7229c410e5795741d60a1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-13_79e945e336d7229c410e5795741d60a1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-13_79e945e336d7229c410e5795741d60a1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1464

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
47KB

MD5
ddcf1d045fcc2f6492f09169f054b2bd

SHA1
b2feb8a12cf4054c99a0df05cf04725802d8f34f

SHA256
5843fdd2a2c11f0a4952edf19ba4ffc1b31649d095ebbe598d42a9e0445d987b

SHA512
6bfc3a723caf6cf4e801f50317cd3ae0bd25e0c045f05827feea5c33f9481d270b5c26b44bb419e9bd10740dcef1626989b4e6deb5b447f647638714aab89cc2

Download Submit
memory/1464-15-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/1464-16-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1964-0-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/1964-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1964-3-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download