4b2bd1fde41b8f3178f874853bd08a949b858d97c6df2bd1587a0c8e65b42827

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12/02/2024, 19:22

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General

Target

2024-02-12_25215e211c833719bd917b118c5e5c3a_cryptolocker.exe
Size

83KB
MD5

25215e211c833719bd917b118c5e5c3a
SHA1

11258a1cd600f3dfcf01f12592cf38d788eb651e
SHA256

4b2bd1fde41b8f3178f874853bd08a949b858d97c6df2bd1587a0c8e65b42827
SHA512

e457394e2c70f4e943d8333ea6e015073483be6180149621c8ba7c9509411a7e3462963cb958bc1a613d12fcdc0e45d68a501e3f66c1a8a55ef60570721a4c5f
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVNlVSLQK:V6a+pOtEvwDpjvpM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224a-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224a-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1240	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2468	2024-02-12_25215e211c833719bd917b118c5e5c3a_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 2468 wrote to memory of 1240	2468	2024-02-12_25215e211c833719bd917b118c5e5c3a_cryptolocker.exe	28
PID 2468 wrote to memory of 1240	2468	2024-02-12_25215e211c833719bd917b118c5e5c3a_cryptolocker.exe	28
PID 2468 wrote to memory of 1240	2468	2024-02-12_25215e211c833719bd917b118c5e5c3a_cryptolocker.exe	28
PID 2468 wrote to memory of 1240	2468	2024-02-12_25215e211c833719bd917b118c5e5c3a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-12_25215e211c833719bd917b118c5e5c3a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_25215e211c833719bd917b118c5e5c3a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2468
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1240

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
83KB

MD5
2d668f4782104a7a235e794d83456ffe

SHA1
c0f6cefd8ca57bbc771220e87905f381329b83e6

SHA256
a60cb62befe4be24d7194385ce5a66257a948d08eaf4b7c0acee1751cf6f1e45

SHA512
e98aa15d69a24f64e16c8fbefe69dbd2a5c9d2b0ff03676ee645981a254fe614d407c58283ec9b2fadd20d58788513df583a0e228f889ea5dc69e912ecb418e9

Download Submit
memory/1240-15-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/1240-19-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2468-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2468-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2468-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download