d146d33d5fccd05b4254a572ce854248ecf0430b76244bb0e91635ec049c8fbe

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
24/06/2024, 23:32

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General

Target

2024-06-24_dfaa3f658938b10dc461f368d0bcaf8a_cryptolocker.exe
Size

45KB
MD5

dfaa3f658938b10dc461f368d0bcaf8a
SHA1

73279f3e07a98c57a14429174bcf25196c25fbcf
SHA256

d146d33d5fccd05b4254a572ce854248ecf0430b76244bb0e91635ec049c8fbe
SHA512

cb4b82f4a57a09c3305b3e7f79a443bb9f315394ff45554701bed7cd7f44d52769544bc34a99aa3332357640bb74f50352aa790f7fe35af054b0e6802ec25592
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPX4:P6QFElP6k+MRQMOtEvwDpjBQpVXE4

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2128-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2128-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000012279-14.dat	CryptoLocker_rule2
behavioral1/memory/2976-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2976-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2128-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2128-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000012279-14.dat	CryptoLocker_set1
behavioral1/memory/2976-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2976-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2976	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2128	2024-06-24_dfaa3f658938b10dc461f368d0bcaf8a_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 2128 wrote to memory of 2976	2128	2024-06-24_dfaa3f658938b10dc461f368d0bcaf8a_cryptolocker.exe	28
PID 2128 wrote to memory of 2976	2128	2024-06-24_dfaa3f658938b10dc461f368d0bcaf8a_cryptolocker.exe	28
PID 2128 wrote to memory of 2976	2128	2024-06-24_dfaa3f658938b10dc461f368d0bcaf8a_cryptolocker.exe	28
PID 2128 wrote to memory of 2976	2128	2024-06-24_dfaa3f658938b10dc461f368d0bcaf8a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-24_dfaa3f658938b10dc461f368d0bcaf8a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-24_dfaa3f658938b10dc461f368d0bcaf8a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2976

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
45KB

MD5
ee961f004b71e4ed917f3c22275eea83

SHA1
30acc9cca298040e89afb0328064ed90ea7eb0ab

SHA256
9d216118d5f6e23992b7feac22871441b7f60b8a8d0f6ae5a7ea2f89c8146dc7

SHA512
877425fb6b69c9efac49ea5bee08755cfef3765c3ca1599a7950b3df34e15e84ed4379211518720263b4f48c3fed602157f8f23315ec4d344f32a8bcdcf5c4bf

Download Submit
memory/2128-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2128-1-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2128-9-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2128-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2128-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2976-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2976-18-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2976-25-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2976-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download