393b5f45419f795de89c44941234b26dd1db575169f17fd98961020d2e0f64b6

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
16/03/2024, 06:45

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General

Target

2024-03-16_cfd53fb030e1cd621d2536b896623128_cryptolocker.exe
Size

84KB
MD5

cfd53fb030e1cd621d2536b896623128
SHA1

5834421d63f4699ba807a708a25bffaedd10bc27
SHA256

393b5f45419f795de89c44941234b26dd1db575169f17fd98961020d2e0f64b6
SHA512

7b974cfbc0a331b575f8e06f99404166f3bfc83f85df4989ab6f913cce091089bd46fc0ae9bd6df90c8cb0c5f55b4516bff05e80bada64e8e7e906336a07a36d
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVNlVSLQsM:V6a+pOtEvwDpjvp1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e980-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e980-12.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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	2024-03-16_cfd53fb030e1cd621d2536b896623128_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1972	asih.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 4500 wrote to memory of 1972	4500	2024-03-16_cfd53fb030e1cd621d2536b896623128_cryptolocker.exe	89
PID 4500 wrote to memory of 1972	4500	2024-03-16_cfd53fb030e1cd621d2536b896623128_cryptolocker.exe	89
PID 4500 wrote to memory of 1972	4500	2024-03-16_cfd53fb030e1cd621d2536b896623128_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-16_cfd53fb030e1cd621d2536b896623128_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-16_cfd53fb030e1cd621d2536b896623128_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4500
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1972

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\asih.exe

Filesize
85KB

MD5
7b3f282e2eedab9e64e034bf4043bf78

SHA1
c8cd7d6a2a91335dc037f62dccc0bd015b22ef95

SHA256
49a1a154a8df8b84bf311107eeccb3a5c96e16bc12d2521f9967da8a19ba3e41

SHA512
7da1b2606fe55958972af2f37a7da832d2f5e2a769690f354f0c84d628e80267111b3cee686553694129b6fe40f41cab537d1c227d99eefdf10499930faf1f43

Download Submit
memory/1972-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/1972-19-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4500-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4500-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4500-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download