f4e5e13e0721f554e3e4b053d5019cbf94993cf623d77ba1c4a3f8eb293c6510

Analysis

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

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
17/02/2024, 22:00

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General

Target

2024-02-17_d9bacd11d833a5fca4bc808635ececf5_cryptolocker.exe
Size

125KB
MD5

d9bacd11d833a5fca4bc808635ececf5
SHA1

3ae46020e34f5b984fc695b29df1555c0764d3fd
SHA256

f4e5e13e0721f554e3e4b053d5019cbf94993cf623d77ba1c4a3f8eb293c6510
SHA512

b3cf40582bf83585cd43dfc5574dff50493272e895093f10d7880deb23e7e7e783b9dd68b12a676481abb110855fafc66478112bcfa16f6ab926fd801ffe5e18
SSDEEP

1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxGBpG:vCA9OtEvwDpji

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012252-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012252-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2564	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2348	2024-02-17_d9bacd11d833a5fca4bc808635ececf5_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 2348 wrote to memory of 2564	2348	2024-02-17_d9bacd11d833a5fca4bc808635ececf5_cryptolocker.exe	29
PID 2348 wrote to memory of 2564	2348	2024-02-17_d9bacd11d833a5fca4bc808635ececf5_cryptolocker.exe	29
PID 2348 wrote to memory of 2564	2348	2024-02-17_d9bacd11d833a5fca4bc808635ececf5_cryptolocker.exe	29
PID 2348 wrote to memory of 2564	2348	2024-02-17_d9bacd11d833a5fca4bc808635ececf5_cryptolocker.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-02-17_d9bacd11d833a5fca4bc808635ececf5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_d9bacd11d833a5fca4bc808635ececf5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2348
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2564

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
126KB

MD5
fe0e8ab5dc8d82980199739585df589c

SHA1
344a82b1518a6e785a6c9d7cd37507688924be25

SHA256
324662e78dbce6bb06dad3ae8ba59c5787b8d9ecedab2a5b678c3487c0090c88

SHA512
7b133ad814a27996e976fc8577e4cf84cf43f670f7b5b290614f9c747cac003314a04383f3899ca13a429f0f0c688fb55fbb820a8b8c6913950521e8f41ce61b

Download Submit
memory/2348-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2348-1-0x0000000000890000-0x0000000000896000-memory.dmp

Filesize
24KB

Download
memory/2348-8-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2564-15-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2564-22-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download