d8b6960a2045191a65a9b155e4f9ec381afeca818ca9e312b57b22aa823644cf

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
24-05-2024 12:47

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General

Target

2024-05-24_95c2fc7d4648f1c247922807edf9c77c_cryptolocker.exe
Size

48KB
MD5

95c2fc7d4648f1c247922807edf9c77c
SHA1

bd4a63bbe02942fc1da36b8e8a8ebc1775e2ea15
SHA256

d8b6960a2045191a65a9b155e4f9ec381afeca818ca9e312b57b22aa823644cf
SHA512

695bc67dbc6ec4dffca46c6ccd923c4a0817b428383748cc1db3ddd49332aeefce5a20740635b0c6ba92c032ebf7ffcaca09d083194eaa066acd2a265676a062
SSDEEP

768:79inqyNR/QtOOtEvwDpjBKccJVODvy3SpUB:79mqyNhQMOtEvwDpjBzckqSs

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1736-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b0000000144e8-11.dat	CryptoLocker_rule2
behavioral1/memory/1736-13-0x0000000002840000-0x000000000284F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1736-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2524-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1736-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b0000000144e8-11.dat	CryptoLocker_set1
behavioral1/memory/1736-13-0x0000000002840000-0x000000000284F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1736-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2524-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2524	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1736	2024-05-24_95c2fc7d4648f1c247922807edf9c77c_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 1736 wrote to memory of 2524	1736	2024-05-24_95c2fc7d4648f1c247922807edf9c77c_cryptolocker.exe	28
PID 1736 wrote to memory of 2524	1736	2024-05-24_95c2fc7d4648f1c247922807edf9c77c_cryptolocker.exe	28
PID 1736 wrote to memory of 2524	1736	2024-05-24_95c2fc7d4648f1c247922807edf9c77c_cryptolocker.exe	28
PID 1736 wrote to memory of 2524	1736	2024-05-24_95c2fc7d4648f1c247922807edf9c77c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-24_95c2fc7d4648f1c247922807edf9c77c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-24_95c2fc7d4648f1c247922807edf9c77c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2524

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
48KB

MD5
7050245b61400db4870d4626652632f8

SHA1
4aef53464e7f536448194a95b9b8d602cd64c67d

SHA256
d20b10fe87857d40b499ef53d0e14977567b41d96f23af2622523c681b728d2e

SHA512
01048035e2f60eba1293b8b96c8c7fc91126d14e56ab7052ca2316e18482f1967d1c58b2774b868af687683f3512f045735a501f9a78f315491b0f3bfa23f1fe

Download Submit
memory/1736-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1736-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1736-2-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/1736-9-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1736-13-0x0000000002840000-0x000000000284F000-memory.dmp

Filesize
60KB

Download
memory/1736-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2524-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2524-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2524-19-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download