ae284d91110d138715aee655bab7e063185352ffca0e7fa51b0a95c0026f66ca

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/05/2024, 03:29

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General

Target

2024-05-25_25be8769bbe2262eac0963923b2b64f3_cryptolocker.exe
Size

68KB
MD5

25be8769bbe2262eac0963923b2b64f3
SHA1

89c2fa77b347656b3427ea4b5bf28592521b291e
SHA256

ae284d91110d138715aee655bab7e063185352ffca0e7fa51b0a95c0026f66ca
SHA512

4e43d53dfa886e96b0bd971dc7dcddf0e3be48c2a03cc2155f8035f04b08ac7982d62987ede9ba4634d3e7c6bfa2779d62c7ad8508099fe5749761ed3c919353
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2l9tMPvdfGyeP9:TCjsIOtEvwDpj5HE/OUHnSMYL

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2328-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000013413-14.dat	CryptoLocker_rule2
behavioral1/memory/2100-18-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2328-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2328-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000013413-14.dat	CryptoLocker_set1
behavioral1/memory/2100-18-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2328-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2100	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2328	2024-05-25_25be8769bbe2262eac0963923b2b64f3_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 2328 wrote to memory of 2100	2328	2024-05-25_25be8769bbe2262eac0963923b2b64f3_cryptolocker.exe	28
PID 2328 wrote to memory of 2100	2328	2024-05-25_25be8769bbe2262eac0963923b2b64f3_cryptolocker.exe	28
PID 2328 wrote to memory of 2100	2328	2024-05-25_25be8769bbe2262eac0963923b2b64f3_cryptolocker.exe	28
PID 2328 wrote to memory of 2100	2328	2024-05-25_25be8769bbe2262eac0963923b2b64f3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-25_25be8769bbe2262eac0963923b2b64f3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-25_25be8769bbe2262eac0963923b2b64f3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2328
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2100

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

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
68KB

MD5
b39abc079b6c9297968c23da68476837

SHA1
8a5b210929d8c350975f63067b8d0173c3b7f339

SHA256
b0e38cc525e6273b6835791f1c380a61534fdc6705ca3c1d866cd284fd051f15

SHA512
afa1d85a2c8a5cdcfcc1178c9b84673f5216096932e6939898d45edf63edb52fd18cd997ea529a9ebded8d6956a57f189a9aa0d5f3b9999625269608456c650c

Download Submit
memory/2100-19-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2100-18-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2100-17-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2328-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2328-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2328-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2328-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2328-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download