f6aacc5bfc49528ccc767cc6916e4ab6ee5516dee0b2080ecc7a644e832af2a3

Analysis

max time kernel
150s
max time network
155s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
14-02-2024 03:43

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General

Target

2024-02-14_16aa3f5923c105349970414b4957b62c_cryptolocker.exe
Size

52KB
MD5

16aa3f5923c105349970414b4957b62c
SHA1

ae8b65962b15056ad578f4d1605482df1d6cd884
SHA256

f6aacc5bfc49528ccc767cc6916e4ab6ee5516dee0b2080ecc7a644e832af2a3
SHA512

e10b2e40d78f0279fc71c8a2811981a6a26c05a68d68b08a9a78412e83cbfd9e64a1d0a3c44c8751fb59bd7e09627559ef160083048907db75a33295724e0e9b
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vaTCFWpzgVr2z89:X6QFElP6n+gJBMOtEvwDpjBtELVe89

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012243-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012243-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2092	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2056	2024-02-14_16aa3f5923c105349970414b4957b62c_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 2056 wrote to memory of 2092	2056	2024-02-14_16aa3f5923c105349970414b4957b62c_cryptolocker.exe	28
PID 2056 wrote to memory of 2092	2056	2024-02-14_16aa3f5923c105349970414b4957b62c_cryptolocker.exe	28
PID 2056 wrote to memory of 2092	2056	2024-02-14_16aa3f5923c105349970414b4957b62c_cryptolocker.exe	28
PID 2056 wrote to memory of 2092	2056	2024-02-14_16aa3f5923c105349970414b4957b62c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-14_16aa3f5923c105349970414b4957b62c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_16aa3f5923c105349970414b4957b62c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2056
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2092

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
52KB

MD5
53fbb818a5a3cb6bf0a138904ff3d37a

SHA1
571c8eed3b4a5a40e5aa2b20ed61376d5289109a

SHA256
1722709e7113b8c8b6ed874f00cd865d897a0ca7089e2c669451ab74abae247b

SHA512
fa063b6fea91743282cdb6aeeb8c8cea303885c03530645fd48b2107f74d50d9d68fe5eb9897337e45a73174dcd357ddf82a81cc738e97ece79c548a5bd148ec

Download Submit
memory/2056-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2056-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2056-1-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2092-15-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2092-19-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download