b048e90d88886bc691ac1ddda56c8e71bae50153ff19d744c17c3e49c809d007

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 18:47

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General

Target

2024-03-25_ff40d828bc3afafe0698cd85fc0c521e_cryptolocker.exe
Size

47KB
MD5

ff40d828bc3afafe0698cd85fc0c521e
SHA1

ca9ab229044d86ed64aac4dee6299fa8ba0609ca
SHA256

b048e90d88886bc691ac1ddda56c8e71bae50153ff19d744c17c3e49c809d007
SHA512

3cfff2dab2d0c2350d9a80288f7d8be9c84f12bac15cfd79641aafb25e60a235d6a13beed97401e7e82ade6ab96da25aa4e445d9b66b62f252989a35a135b1e5
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu556BlvI:X6QFElP6n+gJQMOtEvwDpjB0GIWSlvI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012328-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012328-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2368	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2384	2024-03-25_ff40d828bc3afafe0698cd85fc0c521e_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 2384 wrote to memory of 2368	2384	2024-03-25_ff40d828bc3afafe0698cd85fc0c521e_cryptolocker.exe	28
PID 2384 wrote to memory of 2368	2384	2024-03-25_ff40d828bc3afafe0698cd85fc0c521e_cryptolocker.exe	28
PID 2384 wrote to memory of 2368	2384	2024-03-25_ff40d828bc3afafe0698cd85fc0c521e_cryptolocker.exe	28
PID 2384 wrote to memory of 2368	2384	2024-03-25_ff40d828bc3afafe0698cd85fc0c521e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-25_ff40d828bc3afafe0698cd85fc0c521e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-25_ff40d828bc3afafe0698cd85fc0c521e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2368

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
47KB

MD5
3a5010cb7a40f5a18eacc1c4dd9120a6

SHA1
28656e2769dfc29e4e41e55c018cbb8b6d1f5b35

SHA256
039f0cd4d220533e405bc94f2d2144379fd6a3f0f661563c090e75d50b48e9fc

SHA512
408b86d4193356073c6f072c2fa48e5322454998a2495672b32fdc3b7d73391dc2a839ea13968b84563279656ca3e6e1cb1e0fdb65abaea1e7c345ddffc48b02

Download Submit
memory/2368-15-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2384-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2384-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2384-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download