f8e8a751176e26728179d7406f37d142fcb4dc3a56e7088c3f723a3fa8c9b5fa

Analysis

max time kernel
161s
max time network
158s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
19/03/2024, 16:41

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General

Target

2024-03-19_6a8249c667ea7bd213cc86716e5da79f_cryptolocker.exe
Size

64KB
MD5

6a8249c667ea7bd213cc86716e5da79f
SHA1

99b3896c0117643ec4ebe61a326e306e557aba06
SHA256

f8e8a751176e26728179d7406f37d142fcb4dc3a56e7088c3f723a3fa8c9b5fa
SHA512

66c9e04acdd14f49e5c5e99455af5a40f93a52678685e790c0352177f12d018e50e6dfceac27600f38e21fdf3577b680a30e59908a0bb028afe600e0929d193f
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVCbmh85f:V6a+pOtEvwDpjvo

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012246-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012246-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2584	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2720	2024-03-19_6a8249c667ea7bd213cc86716e5da79f_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 2720 wrote to memory of 2584	2720	2024-03-19_6a8249c667ea7bd213cc86716e5da79f_cryptolocker.exe	27
PID 2720 wrote to memory of 2584	2720	2024-03-19_6a8249c667ea7bd213cc86716e5da79f_cryptolocker.exe	27
PID 2720 wrote to memory of 2584	2720	2024-03-19_6a8249c667ea7bd213cc86716e5da79f_cryptolocker.exe	27
PID 2720 wrote to memory of 2584	2720	2024-03-19_6a8249c667ea7bd213cc86716e5da79f_cryptolocker.exe	27

C:\Users\Admin\AppData\Local\Temp\2024-03-19_6a8249c667ea7bd213cc86716e5da79f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_6a8249c667ea7bd213cc86716e5da79f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2720
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2584

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
64KB

MD5
d6f6494ecd089c7923aae3c1bdacd326

SHA1
ad9b9bc62e8bc49cdbb956a1e314283fa91349ad

SHA256
9bf3d0347500e48112c00829cd00afd0e00fc6dd51e47752e29dbb66a6581cbc

SHA512
2db341d261e81b9883d0b85db49ae65394a4b3f8951998bb8e9329f5b0582d32a594dc80be7be00bbd94ef672304020a96f3ac127f5fe651b238977ab4664e5d

Download Submit
memory/2584-15-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2584-22-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2720-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2720-1-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2720-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download