f8bf3511e47be944dc77f1626e0dc5f0f22b7682851cf252eec492b8ffea234b

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
02/08/2023, 17:39

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General

Target

3cab8491d810560b793f8862ae69784d_cryptolocker_JC.exe
Size

115KB
MD5

3cab8491d810560b793f8862ae69784d
SHA1

fa0ec90de1a7c767826e688a318fa4c32034ddc8
SHA256

f8bf3511e47be944dc77f1626e0dc5f0f22b7682851cf252eec492b8ffea234b
SHA512

0c8f766403762c3f338154c8f38880f64702f873fcf61c421b4dfdd2a32658bbd3d7dbaa5e0a4c7eb927e4f22fc05d4e2893728cac01c19ed1d78f5ee10f872f
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp699G1md:AnBdOOtEvwDpj6z7

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1820	asih.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4016-133-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x0008000000023259-146.dat	upx
behavioral2/files/0x0008000000023259-148.dat	upx
behavioral2/memory/4016-149-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x0008000000023259-150.dat	upx
behavioral2/memory/1820-159-0x0000000000500000-0x000000000050F000-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 3 IoCs

description	pid	Process	procid_target
PID 4016 wrote to memory of 1820	4016	3cab8491d810560b793f8862ae69784d_cryptolocker_JC.exe	81
PID 4016 wrote to memory of 1820	4016	3cab8491d810560b793f8862ae69784d_cryptolocker_JC.exe	81
PID 4016 wrote to memory of 1820	4016	3cab8491d810560b793f8862ae69784d_cryptolocker_JC.exe	81

C:\Users\Admin\AppData\Local\Temp\3cab8491d810560b793f8862ae69784d_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\3cab8491d810560b793f8862ae69784d_cryptolocker_JC.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4016
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1820

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
115KB

MD5
ed63bc748aa445912a3fc4097b993143

SHA1
e91decdbff38fa4886dcd221a82587a22984c0b4

SHA256
69de3b771cc1c82938745918eccd4de423a66c0e52a22bf8bfb2bfad572fc876

SHA512
2e55d411fe52cbe163b01589027a0b40bc55034bb3d45fb8a744566db49cde17e0b20fe105240451467878988e12d17e2315f0a4cdb9e89c7ddedb619572e5bc

Download Submit
C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
115KB

MD5
ed63bc748aa445912a3fc4097b993143

SHA1
e91decdbff38fa4886dcd221a82587a22984c0b4

SHA256
69de3b771cc1c82938745918eccd4de423a66c0e52a22bf8bfb2bfad572fc876

SHA512
2e55d411fe52cbe163b01589027a0b40bc55034bb3d45fb8a744566db49cde17e0b20fe105240451467878988e12d17e2315f0a4cdb9e89c7ddedb619572e5bc

Download Submit
C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
115KB

MD5
ed63bc748aa445912a3fc4097b993143

SHA1
e91decdbff38fa4886dcd221a82587a22984c0b4

SHA256
69de3b771cc1c82938745918eccd4de423a66c0e52a22bf8bfb2bfad572fc876

SHA512
2e55d411fe52cbe163b01589027a0b40bc55034bb3d45fb8a744566db49cde17e0b20fe105240451467878988e12d17e2315f0a4cdb9e89c7ddedb619572e5bc

Download Submit
memory/1820-152-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1820-153-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1820-159-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4016-133-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4016-134-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download
memory/4016-135-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download
memory/4016-136-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/4016-149-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download