121cff5df46297df1219cf0a04874a61e3ed212c7ab11ca04096e9a6d1390de6

Analysis

max time kernel
132s
max time network
139s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/03/2024, 03:25

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General

Target

2024-03-29_a8101c83f91962a905f8b225791274e7_cryptolocker.exe
Size

63KB
MD5

a8101c83f91962a905f8b225791274e7
SHA1

85af73cd90c75d407ab3ae5e327121dc6d2c5419
SHA256

121cff5df46297df1219cf0a04874a61e3ed212c7ab11ca04096e9a6d1390de6
SHA512

028d0ca9ae16d0952743e042e9b1cf2feb7fdf0a6994b5489b9031ceb0440ab723df78373df3ed5b9882e1a4c3c56cbd2a2feb6fedc21c32def11a2d045bed1f
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLZ/xE9D:X6a+SOtEvwDpjBrOs

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012257-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012257-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2912	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2684	2024-03-29_a8101c83f91962a905f8b225791274e7_cryptolocker.exe

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 2684 wrote to memory of 2912	2684	2024-03-29_a8101c83f91962a905f8b225791274e7_cryptolocker.exe	28
PID 2684 wrote to memory of 2912	2684	2024-03-29_a8101c83f91962a905f8b225791274e7_cryptolocker.exe	28
PID 2684 wrote to memory of 2912	2684	2024-03-29_a8101c83f91962a905f8b225791274e7_cryptolocker.exe	28
PID 2684 wrote to memory of 2912	2684	2024-03-29_a8101c83f91962a905f8b225791274e7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-29_a8101c83f91962a905f8b225791274e7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-29_a8101c83f91962a905f8b225791274e7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2912

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
63KB

MD5
9a4277547aef9c253a6e0d03ba244186

SHA1
8ad9c4d3c7d42b75324812743ba557ac8b39972a

SHA256
bacad6588a8f6a1ef271d690875e42a4d2278ec5172d9627788d1599ae811634

SHA512
c7ff4a0950ca32c424019eafbd664853146bc9f91af770b54cd7487ef81d90bc7882e63e5a2e9fe1eafc05d7c61e16a55e283c1fa42530631744b79d34efe317

Download Submit
memory/2684-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2684-1-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2684-8-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2912-15-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2912-17-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download