0459863bc70b9cbf7c43b8f7911f090084c39fab2c5164d50ef6eb0c86148748

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/04/2024, 04:41

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General

Target

2024-04-26_5836a6c8aca967dbddd19954623c56d6_cryptolocker.exe
Size

51KB
MD5

5836a6c8aca967dbddd19954623c56d6
SHA1

0d25f52489fba45a6688782b6284d58544604150
SHA256

0459863bc70b9cbf7c43b8f7911f090084c39fab2c5164d50ef6eb0c86148748
SHA512

0a038e2196dfe5572f5ae52b7d6f11f1de05892781d8c98681310e5173975964d8f2bc79b389c90178e3ebecd6c81fed8080979c74fe7781f942db991ffc76d5
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qnTHGf7:79mqyNhQMOtEvwDpjBxe8GGf7

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2012-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b00000001224f-11.dat	CryptoLocker_rule2
behavioral1/memory/2012-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2476-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2012-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b00000001224f-11.dat	CryptoLocker_set1
behavioral1/memory/2012-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2476-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2476	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2012	2024-04-26_5836a6c8aca967dbddd19954623c56d6_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 2012 wrote to memory of 2476	2012	2024-04-26_5836a6c8aca967dbddd19954623c56d6_cryptolocker.exe	28
PID 2012 wrote to memory of 2476	2012	2024-04-26_5836a6c8aca967dbddd19954623c56d6_cryptolocker.exe	28
PID 2012 wrote to memory of 2476	2012	2024-04-26_5836a6c8aca967dbddd19954623c56d6_cryptolocker.exe	28
PID 2012 wrote to memory of 2476	2012	2024-04-26_5836a6c8aca967dbddd19954623c56d6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-26_5836a6c8aca967dbddd19954623c56d6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-26_5836a6c8aca967dbddd19954623c56d6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2476

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
51KB

MD5
5b6022ab31923b43bb0a0f2f191e7b98

SHA1
f493b5680d6cd9a6c4ac6eae7271e8e7550c6b25

SHA256
2d3326ed144d0c4bc6c09b448fdf07eb6d60f257ebbefc913085e89c664a4f99

SHA512
ac21b5d0bb4461ce3e3b00158c031a7218e7bcdce49fd74608be771b30e8d7dd448142ca9c2cb1f58a8d2d62500d30a0520c44b2806712294ab617b71976b577

Download Submit
memory/2012-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2012-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2012-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2012-4-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2012-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2476-18-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2476-20-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2476-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download