6a9e8a0922586da5baad1b5e5073ef1f45134a188285343018abb708ed409c83

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
19/02/2024, 04:52

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General

Target

2024-02-19_7a8367a0f659c90adf1ea90debb34fbc_cryptolocker.exe
Size

70KB
MD5

7a8367a0f659c90adf1ea90debb34fbc
SHA1

3b6d002bba594554718e1222b4c6d78ef71b8405
SHA256

6a9e8a0922586da5baad1b5e5073ef1f45134a188285343018abb708ed409c83
SHA512

751d6a6b417658564601eb522595e6d93f2d7cf083f92c96436e138ebd51a01cc7e29d486588540eaf417ae826598ce02271b6fca344be5eaf736fbf872729e9
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUtbgS5:DW60sllyWOtEvwDpjwF85l

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1960-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000015b6f-11.dat	CryptoLocker_rule2
behavioral1/memory/1960-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2928-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1960-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000015b6f-11.dat	CryptoLocker_set1
behavioral1/memory/1960-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2928-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2928	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1960	2024-02-19_7a8367a0f659c90adf1ea90debb34fbc_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 1960 wrote to memory of 2928	1960	2024-02-19_7a8367a0f659c90adf1ea90debb34fbc_cryptolocker.exe	28
PID 1960 wrote to memory of 2928	1960	2024-02-19_7a8367a0f659c90adf1ea90debb34fbc_cryptolocker.exe	28
PID 1960 wrote to memory of 2928	1960	2024-02-19_7a8367a0f659c90adf1ea90debb34fbc_cryptolocker.exe	28
PID 1960 wrote to memory of 2928	1960	2024-02-19_7a8367a0f659c90adf1ea90debb34fbc_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-19_7a8367a0f659c90adf1ea90debb34fbc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_7a8367a0f659c90adf1ea90debb34fbc_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1960
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2928

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
71KB

MD5
a18474675339d4fb4759c1dd3b8ece2e

SHA1
c5edf73a1f94e100039df870fcf67b1fe9826054

SHA256
c0ae9e5af026532179b9ae62141e235ca37187d0a7ebee59c2dd492f2515244b

SHA512
aad8110b0415c6d07b8de4d04b2fffac5cbe828306c1c0df4b9ec4aa3b2c0a3d823d54c5585819544b5010acb871ba0cffac7d07e73f25f1b2272378fea03e5d

Download Submit
memory/1960-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1960-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1960-3-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/1960-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1960-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2928-18-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2928-20-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2928-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download