37f8c77c5c10b367963787cbc06a5eeb091f0e8c679a9e8ef2a149b8865dd0d0

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
21-05-2024 15:46

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General

Target

2024-05-21_8e4e26f511c95373b1181f2f1b6143f3_cryptolocker.exe
Size

62KB
MD5

8e4e26f511c95373b1181f2f1b6143f3
SHA1

e38d533aca72d2f5f504379b695f3a2ab11bcaf6
SHA256

37f8c77c5c10b367963787cbc06a5eeb091f0e8c679a9e8ef2a149b8865dd0d0
SHA512

0b986558234a3ccd1f3226ef5a5cc52d1e93deab6c9adad158239970763002c2280402d9ddc1133f8d134b1e4ae52447d233f54f48be9f8c5adb9b580ab2694c
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMNuSK:TCjsIOtEvwDpj5HE/OUHnSMZx

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1920-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral1/memory/1920-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2600-24-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1920-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_set1
behavioral1/memory/1920-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2600-24-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

2600 misid.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-21_8e4e26f511c95373b1181f2f1b6143f3_cryptolocker.exe

pid process

1920 2024-05-21_8e4e26f511c95373b1181f2f1b6143f3_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2600	misid.exe

pid	process
1920	2024-05-21_8e4e26f511c95373b1181f2f1b6143f3_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-21_8e4e26f511c95373b1181f2f1b6143f3_cryptolocker.exe

description	pid	process	target process
PID 1920 wrote to memory of 2600	1920	2024-05-21_8e4e26f511c95373b1181f2f1b6143f3_cryptolocker.exe	misid.exe
PID 1920 wrote to memory of 2600	1920	2024-05-21_8e4e26f511c95373b1181f2f1b6143f3_cryptolocker.exe	misid.exe
PID 1920 wrote to memory of 2600	1920	2024-05-21_8e4e26f511c95373b1181f2f1b6143f3_cryptolocker.exe	misid.exe
PID 1920 wrote to memory of 2600	1920	2024-05-21_8e4e26f511c95373b1181f2f1b6143f3_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-21_8e4e26f511c95373b1181f2f1b6143f3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_8e4e26f511c95373b1181f2f1b6143f3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1920

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
2⤵
- Executes dropped EXE
PID:2600

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\misid.exe
Filesize
62KB

MD5
2ce303d51c632c50f7c53adc7e443e3c

SHA1
ac2e00723f6bcba9a8d9aca912a64ef1e59845df

SHA256
359fcf75c6e5c37259d599bd9d046ba26494fa0bd739c635df36b9365e6f8298

SHA512
34f54c50ffc6e1a0c2448cbe020c8b16b5716845a0dce7a4b84b06632b31cbd8c4a49fe0603b293e947edc668762a2a35e3b48252dd25188af7a1356e16d4d32

Download Submit
memory/1920-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1920-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1920-2-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/1920-9-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1920-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2600-24-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download