1d9132eb05ac958a93f6f0dc47fe575453532ceb8b335687ffd324efcc3fa8a1

Analysis

max time kernel
148s
max time network
153s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
16/05/2024, 07:19

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General

Target

2024-05-16_d7550eedf436f76303447a3986e037d2_cryptolocker.exe
Size

97KB
MD5

d7550eedf436f76303447a3986e037d2
SHA1

948d08f167711a09b33d255cabe33ffe786971b7
SHA256

1d9132eb05ac958a93f6f0dc47fe575453532ceb8b335687ffd324efcc3fa8a1
SHA512

461b27a7e35ad6e07f513d277a149d1a1b9ea40135ce5871cd5220284d890acbcbba6a360c5cd5ffbfe4c5add6d8efea256fd5b3a6700163d71d4db12a228ea2
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgp0x:V6a+pOtEvwDpjtzZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0011000000012262-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0011000000012262-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2224	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2552	2024-05-16_d7550eedf436f76303447a3986e037d2_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 2552 wrote to memory of 2224	2552	2024-05-16_d7550eedf436f76303447a3986e037d2_cryptolocker.exe	28
PID 2552 wrote to memory of 2224	2552	2024-05-16_d7550eedf436f76303447a3986e037d2_cryptolocker.exe	28
PID 2552 wrote to memory of 2224	2552	2024-05-16_d7550eedf436f76303447a3986e037d2_cryptolocker.exe	28
PID 2552 wrote to memory of 2224	2552	2024-05-16_d7550eedf436f76303447a3986e037d2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-16_d7550eedf436f76303447a3986e037d2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-16_d7550eedf436f76303447a3986e037d2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2552
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2224

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
97KB

MD5
90b3ce784d4a39cd11cd024d02975aae

SHA1
810a294f3aeccca93725bd250b2641491cc94b6c

SHA256
3d7a410c8a7cf430edeaadfe547a6832ad1044677defd1b30934c5b47fce294e

SHA512
3cb5e73728802b55f209a024eb9d0f613c6f67fe501853c9be29aed27c1037f370394a4b6ad0a460e0d370bce0974e695fa8349056896ddb12a90dda04b59572

Download Submit
memory/2224-15-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2224-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2552-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2552-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2552-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download