2d44e0ca28aebc8cec1fa4999cb45cd60e7a59d18552eea882d49aa84860dd41

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23-05-2024 00:46

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General

Target

2024-05-23_d64433dfa1dab0fdcccb07685b09b817_cryptolocker.exe
Size

41KB
MD5

d64433dfa1dab0fdcccb07685b09b817
SHA1

1d46825861ee15e7b115819761d8aff7a0ec613b
SHA256

2d44e0ca28aebc8cec1fa4999cb45cd60e7a59d18552eea882d49aa84860dd41
SHA512

4fa160161368fdd6e25b0e22dfe4be2966b0c5355035f38b2bf464062290128507c71c274f2fedbd57d10dced6761c42ed53fde1da24cbe8956881e920df528a
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HKcfr9Orv:X6QFElP6n+gJQMOtEvwDpjBsYK6r0rv

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2928 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-23_d64433dfa1dab0fdcccb07685b09b817_cryptolocker.exe

pid process

1948 2024-05-23_d64433dfa1dab0fdcccb07685b09b817_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2928	asih.exe

pid	process
1948	2024-05-23_d64433dfa1dab0fdcccb07685b09b817_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-23_d64433dfa1dab0fdcccb07685b09b817_cryptolocker.exe

description	pid	process	target process
PID 1948 wrote to memory of 2928	1948	2024-05-23_d64433dfa1dab0fdcccb07685b09b817_cryptolocker.exe	asih.exe
PID 1948 wrote to memory of 2928	1948	2024-05-23_d64433dfa1dab0fdcccb07685b09b817_cryptolocker.exe	asih.exe
PID 1948 wrote to memory of 2928	1948	2024-05-23_d64433dfa1dab0fdcccb07685b09b817_cryptolocker.exe	asih.exe
PID 1948 wrote to memory of 2928	1948	2024-05-23_d64433dfa1dab0fdcccb07685b09b817_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-23_d64433dfa1dab0fdcccb07685b09b817_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_d64433dfa1dab0fdcccb07685b09b817_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1948

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2928

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
42KB

MD5
7061170e243a712d5a6d8ffcaa2ac987

SHA1
11dec344921479d8ba7710ecba0df5dcb17d9948

SHA256
37fde1071de4edd5d76559fa72de19628ac6b92c9d5d35ac154580d7a0fda2fd

SHA512
cffd069514d179af05f4bcaf60777090dd327267ecdd4f3b85902061cf6fb97651a2cdf6c101239122584c65ecca645db887d56d8467eafe6b33196e5b1f73bf

Download Submit
memory/1948-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1948-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1948-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2928-15-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2928-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download