918bc16e24b03bec9c46a3206a53c8ef5616f071ea3a7492dd437fb6b5cd0b90

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
27/04/2024, 06:35

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General

Target

2024-04-27_a3aa2642b7fa5a4f97101daa590eeb34_cryptolocker.exe
Size

40KB
MD5

a3aa2642b7fa5a4f97101daa590eeb34
SHA1

56e96d0103fa34de929d420571e4d3f491b0c555
SHA256

918bc16e24b03bec9c46a3206a53c8ef5616f071ea3a7492dd437fb6b5cd0b90
SHA512

8dedd92de9350dd19417a59e33cb8e9874a9ce8654184211f64284daa900f206957adc0113ed2080a4bee4405f2dc8f6681dc4fa899c4ea1b88d694e0f04d7c6
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunKzH15U/Etv:btB9g/WItCSsAGjX7e9N0hunKLYUv

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001342e-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3012	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2292	2024-04-27_a3aa2642b7fa5a4f97101daa590eeb34_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2292	2024-04-27_a3aa2642b7fa5a4f97101daa590eeb34_cryptolocker.exe
3012	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 3012	2292	2024-04-27_a3aa2642b7fa5a4f97101daa590eeb34_cryptolocker.exe	28
PID 2292 wrote to memory of 3012	2292	2024-04-27_a3aa2642b7fa5a4f97101daa590eeb34_cryptolocker.exe	28
PID 2292 wrote to memory of 3012	2292	2024-04-27_a3aa2642b7fa5a4f97101daa590eeb34_cryptolocker.exe	28
PID 2292 wrote to memory of 3012	2292	2024-04-27_a3aa2642b7fa5a4f97101daa590eeb34_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-27_a3aa2642b7fa5a4f97101daa590eeb34_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-27_a3aa2642b7fa5a4f97101daa590eeb34_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2292
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:3012

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
40KB

MD5
986ac211a5d51d14ae6bb51639880f56

SHA1
cfcb2a75858a9b3e7b2e321ba7d70f060eb11123

SHA256
e6e68cedefbbac3ba05ce65fe0b6d7acd26068ee9ffb4ddb657e72f76426953a

SHA512
ae5635ec44e55d693c0bd61d8023194d9ef1348d8f906a680dddb79b4881fc524ef55947fa3803da211d5bf429d7b027cfeed5d870a97223786228698867b1b4

Download Submit
memory/2292-0-0x0000000002920000-0x0000000002926000-memory.dmp

Filesize
24KB

Download
memory/2292-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2292-8-0x0000000002920000-0x0000000002926000-memory.dmp

Filesize
24KB

Download
memory/3012-23-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download