311a2277a31e0db836fcd7166156595f2b6de482d5a5f9a7856a57703c39a2ea

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
22/04/2024, 04:42

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General

Target

2024-04-22_014b5b5ac5593638252a793e39cfdbf3_cryptolocker.exe
Size

85KB
MD5

014b5b5ac5593638252a793e39cfdbf3
SHA1

27723cd962960d87c2ec0d2e12cd226a1e7ef0ba
SHA256

311a2277a31e0db836fcd7166156595f2b6de482d5a5f9a7856a57703c39a2ea
SHA512

d12e5c8bb72e4b5d9d075915893ecaab5a60a4346bb178a1e005ff663d6092396526629d6f4175ad35e584bb3878b204d5d5977d53e3ca111885403082b0657b
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPtNw5CS95yFPnYcv:V6QFElP6n+gMQMOtEvwDpjyaLccVNl60

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012352-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012352-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2760	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2956	2024-04-22_014b5b5ac5593638252a793e39cfdbf3_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 2956 wrote to memory of 2760	2956	2024-04-22_014b5b5ac5593638252a793e39cfdbf3_cryptolocker.exe	28
PID 2956 wrote to memory of 2760	2956	2024-04-22_014b5b5ac5593638252a793e39cfdbf3_cryptolocker.exe	28
PID 2956 wrote to memory of 2760	2956	2024-04-22_014b5b5ac5593638252a793e39cfdbf3_cryptolocker.exe	28
PID 2956 wrote to memory of 2760	2956	2024-04-22_014b5b5ac5593638252a793e39cfdbf3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-22_014b5b5ac5593638252a793e39cfdbf3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-22_014b5b5ac5593638252a793e39cfdbf3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2956
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2760

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
85KB

MD5
bae924c6ec44d9c313b82391dc295695

SHA1
56517247ece687f919889a8f7c80301b86c7230d

SHA256
ad1cf95503467329d2b413ab1c7c246087f2d9bbbc94650901b91770705d6137

SHA512
a2af1fe081b0357141a532265f60463f9eb083f023efe9fe6acf8a4402a8922c2337a3bbbc9a2739c2c2ece0010ac577d8b15eb8cc2ef7089e768b6dccc385ad

Download Submit
memory/2760-15-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2760-17-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2956-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2956-1-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2956-8-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download