f546453a6cdefb6ccda27784f2db0599952cad788ac0b4f626b3b6aeed4c5bcc

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/04/2024, 03:58

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General

Target

2024-04-29_6614aef04d4d8a0497ed94ce3515d1f1_cryptolocker.exe
Size

40KB
MD5

6614aef04d4d8a0497ed94ce3515d1f1
SHA1

aaefb736b6b94b2e035b32342f91c7418debcb4e
SHA256

f546453a6cdefb6ccda27784f2db0599952cad788ac0b4f626b3b6aeed4c5bcc
SHA512

139892d8df7fb08d7921234f015e6b84f06d56ff021697aa2b6211bba3ec9d0cc0b0e1d3147385369cde65412b3e7083d3472a10f7d48561ee28b41579c1fa9b
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6DyE9xgy3:bIDOw9a0Dwo3P1ojvUSD79yy3

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012324-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2932	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2784	2024-04-29_6614aef04d4d8a0497ed94ce3515d1f1_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 2784 wrote to memory of 2932	2784	2024-04-29_6614aef04d4d8a0497ed94ce3515d1f1_cryptolocker.exe	28
PID 2784 wrote to memory of 2932	2784	2024-04-29_6614aef04d4d8a0497ed94ce3515d1f1_cryptolocker.exe	28
PID 2784 wrote to memory of 2932	2784	2024-04-29_6614aef04d4d8a0497ed94ce3515d1f1_cryptolocker.exe	28
PID 2784 wrote to memory of 2932	2784	2024-04-29_6614aef04d4d8a0497ed94ce3515d1f1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-29_6614aef04d4d8a0497ed94ce3515d1f1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-29_6614aef04d4d8a0497ed94ce3515d1f1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2784
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2932

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\lossy.exe

Filesize
41KB

MD5
55dc6220a7b2711eb4e1f35185f6f1ae

SHA1
e0a1e4dea4f15590597ba7fcfc607a4df64116e0

SHA256
30631cccc58db281ca673a2dc82aaf95d7b81eda6cd9cc0b05a025973f72b00e

SHA512
1f477dff02d12c15e3236844f5a3a52ecafc9f6c3e5f943148df69302f34228297dee23bc1ebc6aecd877077da01e1f6c5cbbc930ecdc75e79a0abbda29139ae

Download Submit
memory/2784-0-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2784-1-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2784-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2932-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2932-15-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download