fad781b757e44b0def0b93af0e5efbc5af44c485bfe35b6024d197f55485a39d

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
19-03-2024 19:56

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General

Target

2024-03-19_ce12d12847e2e4429e59b590fdf51535_cryptolocker.exe
Size

36KB
MD5

ce12d12847e2e4429e59b590fdf51535
SHA1

2d89edeed9fed719661acdf5bf7ceed1694716e3
SHA256

fad781b757e44b0def0b93af0e5efbc5af44c485bfe35b6024d197f55485a39d
SHA512

eabcc504d0100743156acad4c1b24fed9f6a1b793320ba6138ea3911cdead0f4ca613623414104dddb9bf134c579259530996e863d83d53a585de6bf472870d3
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/UkRYzMAAI:vj+jsMQMOtEvwDpj5HcSYPH

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000231d6-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000231d6-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 2 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-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	misid.exe
Key value queried	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	2024-03-19_ce12d12847e2e4429e59b590fdf51535_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2032	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 3548 wrote to memory of 2032	3548	2024-03-19_ce12d12847e2e4429e59b590fdf51535_cryptolocker.exe	90
PID 3548 wrote to memory of 2032	3548	2024-03-19_ce12d12847e2e4429e59b590fdf51535_cryptolocker.exe	90
PID 3548 wrote to memory of 2032	3548	2024-03-19_ce12d12847e2e4429e59b590fdf51535_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-03-19_ce12d12847e2e4429e59b590fdf51535_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_ce12d12847e2e4429e59b590fdf51535_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3548
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:2032

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
36KB

MD5
c5254e810fd777f5aa8e3c198a4bce28

SHA1
1edfcb2298fcbca18a5ef5091321890f31fdb0ce

SHA256
1037bb1031aecb16215a5cd6d3dd67d12c1b96bb792f731ace8eeeb7aa57ac59

SHA512
29b4afafb409476d9ad8c8915030a11a6f4602b1272452beee452121657c493f34a7b72cc44bb71e15e6ed5fa6f2de1f4f16e551e37b9f2cfa842c12583dfecf

Download Submit
memory/2032-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2032-18-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3548-0-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/3548-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/3548-2-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download