9010bc04bd117ab66d6036f025f273608b2a0a51652c6c4d9a293c41c8d42073

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
27/01/2024, 22:24

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General

Target

2024-01-27_45d8480b7441a72773b5b8822d7b3368_cryptolocker.exe
Size

62KB
MD5

45d8480b7441a72773b5b8822d7b3368
SHA1

23728153ff089a0ff4e1dbd25d29a2ebd4d91640
SHA256

9010bc04bd117ab66d6036f025f273608b2a0a51652c6c4d9a293c41c8d42073
SHA512

03477baccdbc454faeaeaf7b01ac5092ee893aa4caa68eaa5b9f8c3bc449f17205dbd53553c421838234d2907a8c656a3075e83244564e1a1536e6be1d3e30c3
SSDEEP

768:zQz7yVEhs9+syJP6ntOOtEvwDpjFelaB7yBEY9Su8F5mLZ5K7/:zj+soPSMOtEvwDpj4kpmeLmY

Score

9^/10

upx

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2164-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000012255-11.dat	CryptoLocker_rule2
behavioral1/memory/2164-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2304-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2304-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2164-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000012255-11.dat	CryptoLocker_set1
behavioral1/memory/2164-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2304-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2304-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral1/memory/2164-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/files/0x000a000000012255-11.dat	UPX
behavioral1/memory/2164-16-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2304-15-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2304-26-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
2304	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2164	2024-01-27_45d8480b7441a72773b5b8822d7b3368_cryptolocker.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2164-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000a000000012255-11.dat	upx
behavioral1/memory/2164-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2304-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2304-26-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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 2164 wrote to memory of 2304	2164	2024-01-27_45d8480b7441a72773b5b8822d7b3368_cryptolocker.exe	28
PID 2164 wrote to memory of 2304	2164	2024-01-27_45d8480b7441a72773b5b8822d7b3368_cryptolocker.exe	28
PID 2164 wrote to memory of 2304	2164	2024-01-27_45d8480b7441a72773b5b8822d7b3368_cryptolocker.exe	28
PID 2164 wrote to memory of 2304	2164	2024-01-27_45d8480b7441a72773b5b8822d7b3368_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-27_45d8480b7441a72773b5b8822d7b3368_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_45d8480b7441a72773b5b8822d7b3368_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2164
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2304

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\misid.exe

Filesize
62KB

MD5
d7d67f00dfd8038dc839bec5067be6cc

SHA1
4b484b1cacbd335748dd8c18b9cca6c345afec7f

SHA256
ac09cde55d170f7c1be3278f28d4a5caa63410d6e875ade3ffa9d3648f9c786e

SHA512
84682b6ed14d2a02d6fa9c5fb4d3c24a8da3d86b5ec86be8b81e94b3508f719b36d6d8c050c08b2b6ac544c39328411a9c5f98f78526e549be1927e8fa17f469

Download Submit
memory/2164-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2164-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2164-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2164-4-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2164-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2304-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2304-18-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/2304-20-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2304-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download