b7e4c2e8a28956ff2c05a1197946022930c4733bb4911b438dd686357a3c8fa2

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
24/04/2024, 17:22

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General

Target

2024-04-24_0219181a6fe0e542a168b945973fe89d_cryptolocker.exe
Size

61KB
MD5

0219181a6fe0e542a168b945973fe89d
SHA1

a25f6253c109f7a995d5b2913ba334468d76a204
SHA256

b7e4c2e8a28956ff2c05a1197946022930c4733bb4911b438dd686357a3c8fa2
SHA512

2ebb2e17ebb59114fe7e1a5a23571ec9806acf5a2b734807f13259201315f2ff3f5a8c8d2442fbd80286fea9fd20b52501d927086645565439acef9892faa2e5
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVCbt5y:V6a+pOtEvwDpjv7

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0005000000023256-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0005000000023256-12.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-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation	2024-04-24_0219181a6fe0e542a168b945973fe89d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4656	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 3112 wrote to memory of 4656	3112	2024-04-24_0219181a6fe0e542a168b945973fe89d_cryptolocker.exe	85
PID 3112 wrote to memory of 4656	3112	2024-04-24_0219181a6fe0e542a168b945973fe89d_cryptolocker.exe	85
PID 3112 wrote to memory of 4656	3112	2024-04-24_0219181a6fe0e542a168b945973fe89d_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-04-24_0219181a6fe0e542a168b945973fe89d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_0219181a6fe0e542a168b945973fe89d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3112
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4656

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
61KB

MD5
16b401a8a64296f16e9d32e489aa03ac

SHA1
2b3379ef35602025ced9ad0d2163167a1f26b971

SHA256
033e726a6b2215a538688356b8737c112f149d92152e91ed61fa29c1bc46031e

SHA512
ceb8af11f5974373cf20418ad6c4f7e2e85eab1d04f4c0ecf7e906206c206876fc1f7343a7859f7a23d3e94abf09f9621b225aef5139daa8456ac6285d0b0886

Download Submit
memory/3112-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/3112-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/3112-2-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/4656-17-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/4656-19-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download