ca03ba6a0bc791829c3e58f8de6f1dc59852e02fabbe30e6e5f4ec4c3ab34577

Analysis

max time kernel
0s
max time network
146s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
05/01/2024, 05:40

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General

Target

2024-01-01_2f260d6baf3d54a78679b90c6237a04e_cryptolocker.exe
Size

59KB
MD5

2f260d6baf3d54a78679b90c6237a04e
SHA1

384cbeb237624d311e5706edcf0d7548e577ccbd
SHA256

ca03ba6a0bc791829c3e58f8de6f1dc59852e02fabbe30e6e5f4ec4c3ab34577
SHA512

088750dd5b94647a91c47c72c86135db4eaa1141889d79184aecdb8987f0b76a0e6fad5eb4b125337a6d786ecca2694a84b91839add278d11467063bbb3f304a
SSDEEP

768:zQz7yVEhs9+syJP6ntOOtEvwDpjFelaB7yBEY9Su8F5mLt:zj+soPSMOtEvwDpj4kpmeLmZ

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2668	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
816	2024-01-01_2f260d6baf3d54a78679b90c6237a04e_cryptolocker.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2668-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/816-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/816-1-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2668-28-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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 816 wrote to memory of 2668	816	2024-01-01_2f260d6baf3d54a78679b90c6237a04e_cryptolocker.exe	16
PID 816 wrote to memory of 2668	816	2024-01-01_2f260d6baf3d54a78679b90c6237a04e_cryptolocker.exe	16
PID 816 wrote to memory of 2668	816	2024-01-01_2f260d6baf3d54a78679b90c6237a04e_cryptolocker.exe	16
PID 816 wrote to memory of 2668	816	2024-01-01_2f260d6baf3d54a78679b90c6237a04e_cryptolocker.exe	16

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
1⤵
- Executes dropped EXE
PID:2668

C:\Users\Admin\AppData\Local\Temp\2024-01-01_2f260d6baf3d54a78679b90c6237a04e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-01_2f260d6baf3d54a78679b90c6237a04e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:816

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

memory/816-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/816-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/816-16-0x0000000002320000-0x0000000002330000-memory.dmp

Filesize
64KB

Download
memory/816-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/816-1-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/816-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/816-27-0x0000000002320000-0x0000000002330000-memory.dmp

Filesize
64KB

Download
memory/2668-19-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2668-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2668-28-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download