26ee8d3b3afd21e5624f9feacc3bd2f860443fb3ee4358db9a2a7ccc6be16120

Analysis

max time kernel
141s
max time network
147s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06-03-2024 05:55

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General

Target

2024-03-06_595bbb1f3f2167101e07eeb5c4848491_cryptolocker.exe
Size

49KB
MD5

595bbb1f3f2167101e07eeb5c4848491
SHA1

551c768b66b6a6f7d59e51d3a032f95379214257
SHA256

26ee8d3b3afd21e5624f9feacc3bd2f860443fb3ee4358db9a2a7ccc6be16120
SHA512

401b238cd9ba0718eed09a6291978dc1caf13bf2d636daa11a9820c93ca898f1e0619b8cebb8853efc5137434146d89a7fd867fb89247976f136378e4d101189
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu55id3AMWZH:X6QFElP6n+gJQMOtEvwDpjB0GIWiWLJ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001223a-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001223a-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2944	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2092	2024-03-06_595bbb1f3f2167101e07eeb5c4848491_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2092 wrote to memory of 2944	2092	2024-03-06_595bbb1f3f2167101e07eeb5c4848491_cryptolocker.exe	28
PID 2092 wrote to memory of 2944	2092	2024-03-06_595bbb1f3f2167101e07eeb5c4848491_cryptolocker.exe	28
PID 2092 wrote to memory of 2944	2092	2024-03-06_595bbb1f3f2167101e07eeb5c4848491_cryptolocker.exe	28
PID 2092 wrote to memory of 2944	2092	2024-03-06_595bbb1f3f2167101e07eeb5c4848491_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-06_595bbb1f3f2167101e07eeb5c4848491_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_595bbb1f3f2167101e07eeb5c4848491_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2092
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2944

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\asih.exe

Filesize
49KB

MD5
f14994004e704e00ccb498cf3158df6e

SHA1
1ec4955bdeace057bf00837c10c163ffd08418a3

SHA256
15c2a53046dee61c9a886a7d547dbfeda1f24b53171f966c28ff9585883acb69

SHA512
a4197fa48a41cc778db67b1bb34b718adbe85650e0271fa87c460625595ab4ec8975680a9dbf6f8066e967ae6d02f952c4f5f465752c9cfd2fa419c07265bf81

Download Submit
memory/2092-0-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2092-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2092-2-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2944-15-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2944-16-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download