83a368d070879e07134641b906872e9f19d862226e92e2694f6751089969d7a5

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
29/01/2024, 03:32

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General

Target

2024-01-29_6f6cde350416ed09c4f37a59ffbff747_cryptolocker.exe
Size

40KB
MD5

6f6cde350416ed09c4f37a59ffbff747
SHA1

720cc178561a37eb202480e81b2469bbf81c4ace
SHA256

83a368d070879e07134641b906872e9f19d862226e92e2694f6751089969d7a5
SHA512

c319707677d057dab2f5c2bcfbd3efae96342a5080a8723fdb9b58990b97d5ee6e777c16f824b0372f4452dc38fb89d52b67cd7adef78fabd1e75bf043e8107f
SSDEEP

384:e/4wODQkzonAYsju5N/surDQtOOtEvwDpjqIGROqS/Wcz0BVFHxLlL:79inqyNR/QtOOtEvwDpjBKcmfxd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2188-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000012258-11.dat	CryptoLocker_rule2
behavioral1/memory/2188-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2840-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2188-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000012258-11.dat	CryptoLocker_set1
behavioral1/memory/2188-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2840-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2840	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2188	2024-01-29_6f6cde350416ed09c4f37a59ffbff747_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 2188 wrote to memory of 2840	2188	2024-01-29_6f6cde350416ed09c4f37a59ffbff747_cryptolocker.exe	28
PID 2188 wrote to memory of 2840	2188	2024-01-29_6f6cde350416ed09c4f37a59ffbff747_cryptolocker.exe	28
PID 2188 wrote to memory of 2840	2188	2024-01-29_6f6cde350416ed09c4f37a59ffbff747_cryptolocker.exe	28
PID 2188 wrote to memory of 2840	2188	2024-01-29_6f6cde350416ed09c4f37a59ffbff747_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-29_6f6cde350416ed09c4f37a59ffbff747_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-29_6f6cde350416ed09c4f37a59ffbff747_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2188
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2840

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
40KB

MD5
71f312fc6e10fb8dc2821a167c43a2b9

SHA1
612062b5cfde15ff24347c85580fecfc07b8295d

SHA256
a2e6f73b0843eb15c59060550a066add3a1739dbcf9dcefb277a7e00f7768e63

SHA512
ab9631769f8e7ca00008e41ec1d2db273397a0723cc263685eaf59799b53097512a66fbee5bd25cd498566c4fbbfd57d3a9ee2547a95fb7167b770433f1d0189

Download Submit
memory/2188-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2188-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2188-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2188-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2188-14-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2840-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2840-18-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2840-22-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download