7675ac27c8bb7ff016a734210c004ff040183704179d954679faa3721ac75105

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
17/02/2024, 23:38

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General

Target

2024-02-17_d1abcd90da09ab6cd0af47bbd22d5675_cryptolocker.exe
Size

44KB
MD5

d1abcd90da09ab6cd0af47bbd22d5675
SHA1

67c6650776f408243a1c172c641039a3eeb25ff7
SHA256

7675ac27c8bb7ff016a734210c004ff040183704179d954679faa3721ac75105
SHA512

0d6933c6620d28c2a47ee01dea8c7abbd8b3c2a4c9bda441a1a6c12e9d487643cf85c46b0335a9d8e613b9327c15f4243df62feff86a525753488a3dc0f1cd5a
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedm+YUS5I7xt:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+P

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2224-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000012252-11.dat	CryptoLocker_rule2
behavioral1/memory/2224-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1884-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2224-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000012252-11.dat	CryptoLocker_set1
behavioral1/memory/2224-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1884-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1884	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2224	2024-02-17_d1abcd90da09ab6cd0af47bbd22d5675_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 2224 wrote to memory of 1884	2224	2024-02-17_d1abcd90da09ab6cd0af47bbd22d5675_cryptolocker.exe	28
PID 2224 wrote to memory of 1884	2224	2024-02-17_d1abcd90da09ab6cd0af47bbd22d5675_cryptolocker.exe	28
PID 2224 wrote to memory of 1884	2224	2024-02-17_d1abcd90da09ab6cd0af47bbd22d5675_cryptolocker.exe	28
PID 2224 wrote to memory of 1884	2224	2024-02-17_d1abcd90da09ab6cd0af47bbd22d5675_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-17_d1abcd90da09ab6cd0af47bbd22d5675_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_d1abcd90da09ab6cd0af47bbd22d5675_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1884

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
44KB

MD5
44f5f54417aa97b4146c502a9b766460

SHA1
6fa06ae526fd79c47b7ee68cb488749928bd95a4

SHA256
e76108bb9c51dd1698ff7dbe99b86a93b6d0cd2e4f60f34382b322edd72e89d9

SHA512
49476be5be1a6a1d8556e504ebc77545a849741f11e8bc25e96611c93bcfff45f670815f6aac936199fa951e89f7c0e85900d62fcc301e06c075472ed9749f7c

Download Submit
memory/1884-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1884-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1884-19-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2224-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2224-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2224-2-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2224-4-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2224-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download