4dc08a42f2508163c1b23ca983f6ee3aa5dd33f94bb8f01ef563f5c4962e5aa0

Analysis

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

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
12/05/2024, 14:37

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General

Target

2024-05-12_8fcbdc78b725645ea2dd233fbdb1d487_cryptolocker.exe
Size

42KB
MD5

8fcbdc78b725645ea2dd233fbdb1d487
SHA1

7f4fc37a023000a6cc9c7844112cd79c94de3d23
SHA256

4dc08a42f2508163c1b23ca983f6ee3aa5dd33f94bb8f01ef563f5c4962e5aa0
SHA512

8dd3b8b023d54f9f3ebfe2239ad1c1006dfffb7f1c749c4770d2e1f7224a956803964967301876ecd5fe5ac567f43aa3543103cf1d6781b282297cc5f0007a6e
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkL7vFO:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkL8

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1684-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b00000001226d-11.dat	CryptoLocker_rule2
behavioral1/memory/1684-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2140-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1684-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b00000001226d-11.dat	CryptoLocker_set1
behavioral1/memory/1684-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2140-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2140	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1684	2024-05-12_8fcbdc78b725645ea2dd233fbdb1d487_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 1684 wrote to memory of 2140	1684	2024-05-12_8fcbdc78b725645ea2dd233fbdb1d487_cryptolocker.exe	28
PID 1684 wrote to memory of 2140	1684	2024-05-12_8fcbdc78b725645ea2dd233fbdb1d487_cryptolocker.exe	28
PID 1684 wrote to memory of 2140	1684	2024-05-12_8fcbdc78b725645ea2dd233fbdb1d487_cryptolocker.exe	28
PID 1684 wrote to memory of 2140	1684	2024-05-12_8fcbdc78b725645ea2dd233fbdb1d487_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-12_8fcbdc78b725645ea2dd233fbdb1d487_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-12_8fcbdc78b725645ea2dd233fbdb1d487_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1684
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2140

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
42KB

MD5
3903f2347490837a15a26fdd5d5b7e17

SHA1
951effdbd69e1315cf7626bd9ef890e1ab2a69d1

SHA256
50d7285cb1cc2497c724a38cfb64747429b51d683fe88b0b00d918116ea8d85b

SHA512
fb12c0744176f52ccdfcd3ec6057b77cccc92ada805088a8740913ef15cfcb5767bca10a3be2702e132fdea8304154d5274767d9ee4d4d49c2d3d2f57a6cee7b

Download Submit
memory/1684-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1684-1-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1684-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1684-9-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1684-14-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2140-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2140-18-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2140-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download