de35dbbc62cec7180094e8b2455593d7fc172b00637a62d13108c8cbf3a2a742

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
20/04/2024, 15:42

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General

Target

2024-04-20_bac3494b9916b8388ff08131047e8baf_cryptolocker.exe
Size

42KB
MD5

bac3494b9916b8388ff08131047e8baf
SHA1

b1b0fa572e256eccf9beed46bf5c5cd191281a22
SHA256

de35dbbc62cec7180094e8b2455593d7fc172b00637a62d13108c8cbf3a2a742
SHA512

50a7e402f8c62bdca1a6207368e02275d98843806444cd863bf3a7ca2dcee318d9ef6cb7fcdacc60db6698fd26f79203548ae4e86e820b2b489d62993c40c10b
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD90:X6QFElP6n+gJQMOtEvwDpjBmzDkWDa

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224f-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224f-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2476	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
112	2024-04-20_bac3494b9916b8388ff08131047e8baf_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 112 wrote to memory of 2476	112	2024-04-20_bac3494b9916b8388ff08131047e8baf_cryptolocker.exe	28
PID 112 wrote to memory of 2476	112	2024-04-20_bac3494b9916b8388ff08131047e8baf_cryptolocker.exe	28
PID 112 wrote to memory of 2476	112	2024-04-20_bac3494b9916b8388ff08131047e8baf_cryptolocker.exe	28
PID 112 wrote to memory of 2476	112	2024-04-20_bac3494b9916b8388ff08131047e8baf_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-20_bac3494b9916b8388ff08131047e8baf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-20_bac3494b9916b8388ff08131047e8baf_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:112
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2476

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
42KB

MD5
be984304dc621c94f8573a8f170bde3d

SHA1
be368c13f87b9659fd63611888b89ec38c0e01b1

SHA256
830c329726971f89f7bcc99f3cea1727b7ac29db64b925102ced86930c27be40

SHA512
51a67cfcc492d16ddc60d5f5c2f643a4597c1047ce168d80415d8d52347a5c78e827a6196ae83c1e0236a53c9b75d996f40c5904de07fa0493463ce4cd0a80d6

Download Submit
memory/112-0-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/112-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/112-8-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2476-16-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2476-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download