dcdb288cd3fc5950676bf57933fb0a215ec4e497a996e6606b13297a826a9102

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
25/05/2024, 14:23

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General

Target

2024-05-25_2880ffbeee30c98f835666e6fd8d25d8_cryptolocker.exe
Size

50KB
MD5

2880ffbeee30c98f835666e6fd8d25d8
SHA1

60f2474df58bd5dcbd5fa8acaf4063428c19c9e8
SHA256

dcdb288cd3fc5950676bf57933fb0a215ec4e497a996e6606b13297a826a9102
SHA512

a668b4f84ae71d1bbad7484b1bb8e47645673a1d7322c75402b71b9d93d66d0deaf6370e69f2bb174d60197b3765cbdde4151bb2037684c78cfd65be2d43f882
SSDEEP

768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/DpkcAY0I:P6Q0ElP6G+gJQMOtEvwDpjB8WMlf/B

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2100-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000013f2c-23.dat	CryptoLocker_rule2
behavioral1/memory/2100-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2976-24-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2100-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000013f2c-23.dat	CryptoLocker_set1
behavioral1/memory/2100-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2976-24-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2976	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2100	2024-05-25_2880ffbeee30c98f835666e6fd8d25d8_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 2100 wrote to memory of 2976	2100	2024-05-25_2880ffbeee30c98f835666e6fd8d25d8_cryptolocker.exe	28
PID 2100 wrote to memory of 2976	2100	2024-05-25_2880ffbeee30c98f835666e6fd8d25d8_cryptolocker.exe	28
PID 2100 wrote to memory of 2976	2100	2024-05-25_2880ffbeee30c98f835666e6fd8d25d8_cryptolocker.exe	28
PID 2100 wrote to memory of 2976	2100	2024-05-25_2880ffbeee30c98f835666e6fd8d25d8_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-25_2880ffbeee30c98f835666e6fd8d25d8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-25_2880ffbeee30c98f835666e6fd8d25d8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2100
- 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
50KB

MD5
50e01aa09b0f3f49515e07877ebb7ec5

SHA1
a1fc99a0ecae47eaa5fc775dbf5fc77bde14799b

SHA256
7e1d24e32bf9a0e773453dbb9e0962384f67ad1209545982175a32eceee8e7a6

SHA512
f5ed287e4b5044d81982469056d41a59ee3e912cc82eddeb5b402693fd900832be01fb94a42eba83dbb0a1f6a4f30249f9c87878ab542333f63a9d49815ecd4b

Download Submit
memory/2100-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2100-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2100-9-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2100-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2100-14-0x00000000006A0000-0x00000000006AB000-memory.dmp

Filesize
44KB

Download
memory/2100-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2976-25-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2976-24-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2976-17-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download