f5390a74e177913a209825420a7e033f3a9a5a3171346ea97e4f507a3c2a14d7

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 20:31

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General

Target

2024-01-25_dd9e724c63586ed3361509b99b729f32_cryptolocker.exe
Size

49KB
MD5

dd9e724c63586ed3361509b99b729f32
SHA1

4f487b48311a0418f86271a6a6a6da37b3331493
SHA256

f5390a74e177913a209825420a7e033f3a9a5a3171346ea97e4f507a3c2a14d7
SHA512

9a33c4d279fd50308f2f126e92f5b5ad3debd132748235378f16d97dda5a25daecda9d89d59bb10b87f3e5e2213f7867528e88d39eec7614b16c9d2c1ade16c3
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vaTiSfQa8U:X6QFElP6n+gJBMOtEvwDpjBtE1y9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012203-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012203-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2076	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2932	2024-01-25_dd9e724c63586ed3361509b99b729f32_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 2932 wrote to memory of 2076	2932	2024-01-25_dd9e724c63586ed3361509b99b729f32_cryptolocker.exe	28
PID 2932 wrote to memory of 2076	2932	2024-01-25_dd9e724c63586ed3361509b99b729f32_cryptolocker.exe	28
PID 2932 wrote to memory of 2076	2932	2024-01-25_dd9e724c63586ed3361509b99b729f32_cryptolocker.exe	28
PID 2932 wrote to memory of 2076	2932	2024-01-25_dd9e724c63586ed3361509b99b729f32_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-25_dd9e724c63586ed3361509b99b729f32_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_dd9e724c63586ed3361509b99b729f32_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2076

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
49KB

MD5
cd06df5fd4ba8c799ef056b9c789b371

SHA1
3dc360cb6549e60cb053dc8a0f6766e7c67dc4bf

SHA256
c530323661cbcd7e27820cc4aad27528215ce259814303035585085a9a678ad6

SHA512
b2e76e8bb010149c075ac9a333fcaa80366324c8b092643a3c5b43f2b90c7311772f7287296ba0c27e054dcaeb7c3deeb299efb3064fd747a261ea10109f0358

Download Submit
memory/2076-15-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2076-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2932-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2932-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2932-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download