8bc44be815ae9c9b5ddcdf4c69db49377241aa29b860e149e52e4d19447774b3

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
23-05-2024 02:22

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General

Target

2024-05-23_0124a7633391aa51e2df3d1c9ca2541c_cryptolocker.exe
Size

49KB
MD5

0124a7633391aa51e2df3d1c9ca2541c
SHA1

4e634bc67688f9c4506e7c3130a84bb85dd90f88
SHA256

8bc44be815ae9c9b5ddcdf4c69db49377241aa29b860e149e52e4d19447774b3
SHA512

4c6e0f5e4be6f54ec95781d5d53da7fc44257c1825d10e5c7bbf5bc92e22e562bba997bbfdd0b5fbc8b7500f3f76b9585fc608b91efc0de3ca763dc6d1ebdc15
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vdXf5:X6QFElP6n+gJBMOtEvwDpjBtEdXf5

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

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

Detection of Cryptolocker Samples 1 IoCs

Processes:

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

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

1908 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-23_0124a7633391aa51e2df3d1c9ca2541c_cryptolocker.exe

pid process

328 2024-05-23_0124a7633391aa51e2df3d1c9ca2541c_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1908	asih.exe

pid	process
328	2024-05-23_0124a7633391aa51e2df3d1c9ca2541c_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-23_0124a7633391aa51e2df3d1c9ca2541c_cryptolocker.exe

description	pid	process	target process
PID 328 wrote to memory of 1908	328	2024-05-23_0124a7633391aa51e2df3d1c9ca2541c_cryptolocker.exe	asih.exe
PID 328 wrote to memory of 1908	328	2024-05-23_0124a7633391aa51e2df3d1c9ca2541c_cryptolocker.exe	asih.exe
PID 328 wrote to memory of 1908	328	2024-05-23_0124a7633391aa51e2df3d1c9ca2541c_cryptolocker.exe	asih.exe
PID 328 wrote to memory of 1908	328	2024-05-23_0124a7633391aa51e2df3d1c9ca2541c_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-23_0124a7633391aa51e2df3d1c9ca2541c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_0124a7633391aa51e2df3d1c9ca2541c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:328

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:1908

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe
Filesize
49KB

MD5
fc132edbdbab6a393d858a814e48bae3

SHA1
3b48f733c5d23975a4116ee39842d89fb410bc98

SHA256
7a7fdbdf961174d35a5c50d1cd3c0d36c08f1d9ab4d95147a754a975d4fefde0

SHA512
104d5feb8b4ea25ced49353dc6664f987d58020d14c76fecf38ccdd99ec169db679835ab2d1594deec6b3f26d2a317bc23721d12bbe7c2ef938915fc36359134

Download Submit
memory/328-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/328-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/328-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1908-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1908-15-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download