782a44ffe551b83e350ec08bda19df1fa63c32ceed25ff4d471abe54ea415daa

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06-03-2024 17:38

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General

Target

2024-03-06_58696380062ff0521ae71b2e4fd56001_cryptolocker.exe
Size

52KB
MD5

58696380062ff0521ae71b2e4fd56001
SHA1

9fcde7711a7f30669893c144733001e99d6b63da
SHA256

782a44ffe551b83e350ec08bda19df1fa63c32ceed25ff4d471abe54ea415daa
SHA512

0ffcb8d90640231b5c1420970ceba867ddab4dddffc0e6089360832e441fc61cec646ba4367efb9085b1e806d64321d34a557fe23777ddef7edc35c263310931
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qn8pKIRszXV:79mqyNhQMOtEvwDpjBxe8TpXRSl

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2924-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001224c-11.dat	CryptoLocker_rule2
behavioral1/memory/2924-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2748-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2924-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c00000001224c-11.dat	CryptoLocker_set1
behavioral1/memory/2924-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2748-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2748	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2924	2024-03-06_58696380062ff0521ae71b2e4fd56001_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 2924 wrote to memory of 2748	2924	2024-03-06_58696380062ff0521ae71b2e4fd56001_cryptolocker.exe	28
PID 2924 wrote to memory of 2748	2924	2024-03-06_58696380062ff0521ae71b2e4fd56001_cryptolocker.exe	28
PID 2924 wrote to memory of 2748	2924	2024-03-06_58696380062ff0521ae71b2e4fd56001_cryptolocker.exe	28
PID 2924 wrote to memory of 2748	2924	2024-03-06_58696380062ff0521ae71b2e4fd56001_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-06_58696380062ff0521ae71b2e4fd56001_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_58696380062ff0521ae71b2e4fd56001_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2924
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2748

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
52KB

MD5
c0d6f3498dc30953a47fe518b360315f

SHA1
f83538d89198977a75ecf3ab5b1621414925f64b

SHA256
3ff5d6d8d1396fe60e536db9ec488bf8dcb609d19266ccfc06d8509b279350aa

SHA512
5508bc4dc812940362fba9bfcd88bd59cd0a3d15ddd8c88c2756e892eac5bd3d9be827377275fcca6dc87e3a548c6ae07692e24c4f1f9372d4160091cecff1e9

Download Submit
memory/2748-18-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2748-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2748-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2924-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2924-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2924-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2924-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2924-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download