b75945e01bd398fb5096ab4679f9200697e3c1f7ec91afdc2722c38b3b1c8d65

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
17-04-2024 19:58

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General

Target

2024-04-17_e78026f39cedfe80e743167ec70799d1_cryptolocker.exe
Size

74KB
MD5

e78026f39cedfe80e743167ec70799d1
SHA1

357afd53d539d6a2ac496048517b44b0595bc9e7
SHA256

b75945e01bd398fb5096ab4679f9200697e3c1f7ec91afdc2722c38b3b1c8d65
SHA512

059314ac889dbe95eeac74800a494c0aa0138eb49bcb0cd53b52d24b5fe17b145e3341c5c3142ee5eefd4787aa232fbfafd3806e087f9943c791277dc18dd6b3
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KUb:ZVxkGOtEvwDpjca/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e62b-13.dat	CryptoLocker_rule2

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-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation	2024-04-17_e78026f39cedfe80e743167ec70799d1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3764	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 4964 wrote to memory of 3764	4964	2024-04-17_e78026f39cedfe80e743167ec70799d1_cryptolocker.exe	85
PID 4964 wrote to memory of 3764	4964	2024-04-17_e78026f39cedfe80e743167ec70799d1_cryptolocker.exe	85
PID 4964 wrote to memory of 3764	4964	2024-04-17_e78026f39cedfe80e743167ec70799d1_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-04-17_e78026f39cedfe80e743167ec70799d1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-17_e78026f39cedfe80e743167ec70799d1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4964
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3764

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
75KB

MD5
48fe3a604579deaff0660dbeaa80d0f8

SHA1
e7abfd4571632352720d4ad70cc917c109bbe159

SHA256
df10d95f2c15197ae3c4d06606e87ba8684b9f0d1a7177f95188e97980ed8660

SHA512
1e23bc62f88744ce9783c46e2b3ab1410d32fc70874bf6ec3bacc46d6468f19df5acc642e17a86c38a637f1c1acbbf7510a9bed25b0ccfdb41b2c159d473a85d

Download Submit
memory/3764-19-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/3764-20-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/3764-23-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/4964-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4964-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4964-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4964-3-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/4964-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download