91639ee6ed3d5babd1b9bb70396367abcaa06b7d958114656daa8659ed754bb4

Analysis

max time kernel
146s
max time network
163s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19/02/2024, 16:36

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General

Target

2024-02-19_5d1e36a8e77c2f65db7764ca22dda23d_cryptolocker.exe
Size

123KB
MD5

5d1e36a8e77c2f65db7764ca22dda23d
SHA1

2e673cf5837493923549ee13c7d597ee39d497e3
SHA256

91639ee6ed3d5babd1b9bb70396367abcaa06b7d958114656daa8659ed754bb4
SHA512

5bcb8120bb6310f69068a0c3b660d502c5cc10978873447bee70874246f14c5cdc89a23b469667e7d1d34c501b3e0776fc63de9bc97ab49ba3a53c2f709922cb
SSDEEP

1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxE4b:vCA9OtEvwDpj6

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023123-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023123-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-02-19_5d1e36a8e77c2f65db7764ca22dda23d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1848	misid.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1180 wrote to memory of 1848	1180	2024-02-19_5d1e36a8e77c2f65db7764ca22dda23d_cryptolocker.exe	83
PID 1180 wrote to memory of 1848	1180	2024-02-19_5d1e36a8e77c2f65db7764ca22dda23d_cryptolocker.exe	83
PID 1180 wrote to memory of 1848	1180	2024-02-19_5d1e36a8e77c2f65db7764ca22dda23d_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-19_5d1e36a8e77c2f65db7764ca22dda23d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_5d1e36a8e77c2f65db7764ca22dda23d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1180
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1848

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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
123KB

MD5
11d3c1173b1aef8761887ec0c1279a24

SHA1
f5baec0fc0c6921cab6ce2aa9dfdb826cc703370

SHA256
5ec46c2f18f2b989a6ff5d3a793f38ead95be22cfc535f16aca8295bfd7304a8

SHA512
cfb0de071ad8c65fbfcdfc471b619a600d2308d7f7aa210944f070f142f32f53f9c9410e7181e3c2006c1346de3154379165d88f2ccac79aad1e1b927dc05923

Download Submit
memory/1180-0-0x0000000002280000-0x0000000002286000-memory.dmp

Filesize
24KB

Download
memory/1180-1-0x0000000002280000-0x0000000002286000-memory.dmp

Filesize
24KB

Download
memory/1180-2-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/1848-17-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/1848-18-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download