d93f2958821b567cb0b61589a18c8b9e320d334aeb8ae1a687f460d6d606aeb8

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10-04-2024 19:33

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General

Target

2024-04-10_9152497f34e3674b1a413dbdf17f3b1c_cryptolocker.exe
Size

55KB
MD5

9152497f34e3674b1a413dbdf17f3b1c
SHA1

8b4bb94755646fe0922289acc6008fb24a747ee5
SHA256

d93f2958821b567cb0b61589a18c8b9e320d334aeb8ae1a687f460d6d606aeb8
SHA512

e3ef9cca7f070e3bd49148175d4aafa4a1a2a91592fcddb356fa342c65a83d7917b7ac8ce1df86f410d815863e38b8db555d8c643ef9593910f0bae52fe30cd0
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vaTiSfQaV2LJL:X6QFElP6n+gJBMOtEvwDpjBtE1yILJL

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001224c-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001224c-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2560	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2656	2024-04-10_9152497f34e3674b1a413dbdf17f3b1c_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 2656 wrote to memory of 2560	2656	2024-04-10_9152497f34e3674b1a413dbdf17f3b1c_cryptolocker.exe	28
PID 2656 wrote to memory of 2560	2656	2024-04-10_9152497f34e3674b1a413dbdf17f3b1c_cryptolocker.exe	28
PID 2656 wrote to memory of 2560	2656	2024-04-10_9152497f34e3674b1a413dbdf17f3b1c_cryptolocker.exe	28
PID 2656 wrote to memory of 2560	2656	2024-04-10_9152497f34e3674b1a413dbdf17f3b1c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-10_9152497f34e3674b1a413dbdf17f3b1c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-10_9152497f34e3674b1a413dbdf17f3b1c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2656
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2560

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
55KB

MD5
54bc9bed3494276ba220b9e5e754b37d

SHA1
451e2adf6d661dcf406c4fd2ec83b236254165c8

SHA256
d077fb1ad6f38e1acb3655d88101661f179eb3079812c305a9d9829e06165e64

SHA512
1f4315c36ed8bfa2368483c1f9f2ed447fb1794349664befddcb88105b06ecfe9cfeb19379a5b7c06b49c3e1ebfdd6353ac9ce1978172570e2a3250c99af931c

Download Submit
memory/2560-15-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2560-17-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2656-0-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2656-2-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2656-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download