49b4e54e40f03b07f52dfc5a5e75a0172c2492f3c6712c87736e73f6449fccbe

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
12-02-2024 20:19

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General

Target

2024-02-12_c913df8288269952cc622638604b10d0_cryptolocker.exe
Size

45KB
MD5

c913df8288269952cc622638604b10d0
SHA1

e9f27c9481843c1cc9cb171d664630206a52d4b3
SHA256

49b4e54e40f03b07f52dfc5a5e75a0172c2492f3c6712c87736e73f6449fccbe
SHA512

4c484c871101b4447e35f0942c31dac995c19137b9ac7cf649b095197a6dc36289a510df9f5d5dfc2df4aa6fe2051d3f5d66b86e9b270758504759239ff4a6f4
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLaHaMMm2X3rtLSvd3:V6QFElP6n+gMQMOtEvwDpjyaHaXvOv9

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

2764 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-02-12_c913df8288269952cc622638604b10d0_cryptolocker.exe

pid process

2384 2024-02-12_c913df8288269952cc622638604b10d0_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2764	asih.exe

pid	process
2384	2024-02-12_c913df8288269952cc622638604b10d0_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-02-12_c913df8288269952cc622638604b10d0_cryptolocker.exe

description	pid	process	target process
PID 2384 wrote to memory of 2764	2384	2024-02-12_c913df8288269952cc622638604b10d0_cryptolocker.exe	asih.exe
PID 2384 wrote to memory of 2764	2384	2024-02-12_c913df8288269952cc622638604b10d0_cryptolocker.exe	asih.exe
PID 2384 wrote to memory of 2764	2384	2024-02-12_c913df8288269952cc622638604b10d0_cryptolocker.exe	asih.exe
PID 2384 wrote to memory of 2764	2384	2024-02-12_c913df8288269952cc622638604b10d0_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-02-12_c913df8288269952cc622638604b10d0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_c913df8288269952cc622638604b10d0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2384

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2764

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
45KB

MD5
fdbd91e809be981015839e819b63ba0c

SHA1
32460ce5ad8d917af39e429679457765f9286407

SHA256
2fdbe14aca4564166754d5b539b59b55989b2bf736a45a768f697e15120bbbea

SHA512
987e53d8e04e72cecf493974dede3d3d9f3e1338a2079e5bad5beb213d86c070c12e215532575fbab45dfd5ebd54830aae2408bc2d7766ab889cf59ba59580c7

Download Submit
memory/2384-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2384-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2384-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2764-15-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download