c67ad8fc202dd778adcf45477b5a7a13bfe898a9d9dff970321cc9e0c16fb2d5

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
02-06-2024 08:29

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General

Target

2024-06-02_f8d1908df7db87d55000ec3f568be648_cryptolocker.exe
Size

47KB
MD5

f8d1908df7db87d55000ec3f568be648
SHA1

0009c365635abb7a297a90e789e8f4855413e586
SHA256

c67ad8fc202dd778adcf45477b5a7a13bfe898a9d9dff970321cc9e0c16fb2d5
SHA512

0278870a92668088785801ef26f626e2899740cee3c964b4a055ca9d12b3060cad4d13931dd063dad54a80236c276cb6817f50d934364156c2269a1d7351eb28
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPkZ:P6QFElP6k+MRQMOtEvwDpjBQpVX1Z

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2152-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000f000000012272-11.dat	CryptoLocker_rule2
behavioral1/memory/2856-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2152-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2856-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2152-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000f000000012272-11.dat	CryptoLocker_set1
behavioral1/memory/2856-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2152-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2856-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2856	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2152	2024-06-02_f8d1908df7db87d55000ec3f568be648_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 2152 wrote to memory of 2856	2152	2024-06-02_f8d1908df7db87d55000ec3f568be648_cryptolocker.exe	28
PID 2152 wrote to memory of 2856	2152	2024-06-02_f8d1908df7db87d55000ec3f568be648_cryptolocker.exe	28
PID 2152 wrote to memory of 2856	2152	2024-06-02_f8d1908df7db87d55000ec3f568be648_cryptolocker.exe	28
PID 2152 wrote to memory of 2856	2152	2024-06-02_f8d1908df7db87d55000ec3f568be648_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-02_f8d1908df7db87d55000ec3f568be648_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-02_f8d1908df7db87d55000ec3f568be648_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2856

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
5e7cb81c94403835f685ecf4d1ebec30

SHA1
56866db9e5d9d0cd38bb080524f0a2a33003ebe6

SHA256
eaaef460217d569faf3d3ca9b05305980625191b08336074f047f80cd858d051

SHA512
a3e89ae03e92d5f26c94268db6075d738e89676e7bd97ef113160afddb45b58c4dcc33ae5d906eb3ab105cfa34ba7a1c7e7d3d04cb8d07eda3b8e54eeaffe31c

Download Submit
memory/2152-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2152-1-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2152-2-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2152-9-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2152-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2856-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2856-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2856-18-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2856-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download