d0462bd2b64e29b16b0985aaa0dd35280fb1a07ef2f6616377521786742463d3

Analysis

max time kernel
150s
max time network
142s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
03-02-2024 08:25

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General

Target

2024-02-03_26a042a9b8307500bd5d88d848e0bf4f_cryptolocker.exe
Size

146KB
MD5

26a042a9b8307500bd5d88d848e0bf4f
SHA1

e8623b4978840bd327309e3c7744b817f1a0a0b5
SHA256

d0462bd2b64e29b16b0985aaa0dd35280fb1a07ef2f6616377521786742463d3
SHA512

383edc216e92dd446ea0b34869f545f1692144492d62c0d1ae8781bc50f23e94e9cdcd8739caf883981f3951c947aa1eac1ceff3bd7aaae74f837331400f1dde
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbxGYQbxGYQbPlooHPPFb:V6a+pOtEvwDpjt22v

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012185-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012185-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2832	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3028	2024-02-03_26a042a9b8307500bd5d88d848e0bf4f_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 3028 wrote to memory of 2832	3028	2024-02-03_26a042a9b8307500bd5d88d848e0bf4f_cryptolocker.exe	28
PID 3028 wrote to memory of 2832	3028	2024-02-03_26a042a9b8307500bd5d88d848e0bf4f_cryptolocker.exe	28
PID 3028 wrote to memory of 2832	3028	2024-02-03_26a042a9b8307500bd5d88d848e0bf4f_cryptolocker.exe	28
PID 3028 wrote to memory of 2832	3028	2024-02-03_26a042a9b8307500bd5d88d848e0bf4f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-03_26a042a9b8307500bd5d88d848e0bf4f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-03_26a042a9b8307500bd5d88d848e0bf4f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2832

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
146KB

MD5
6f175b300883a686fb3de25fe8cfb623

SHA1
7401e5f8245196aa4fe697683edcfc1628b66f15

SHA256
b529bae9c2dc23feca76e8f06430edd7f192cd9f73df2429c0b38e9ce93c7d1a

SHA512
60d3fa4ae653fbc5b47c75601d6a5b186522f8249151318dcbc6384ffdea4d81497b085a22010c3484911cc1ed6dd2afd57098888e2b39c6f3bcc384fc4fbd7c

Download Submit
memory/2832-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2832-22-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3028-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/3028-2-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/3028-1-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download