ff112fd7a2986c00b27301184312d0991d9b2b9fa7ab97bf9690809a5e740b28

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
27/05/2024, 21:41

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General

Target

2024-05-27_e1c4317d1dd629c646744b59c9917a91_cryptolocker.exe
Size

53KB
MD5

e1c4317d1dd629c646744b59c9917a91
SHA1

bcf4846958516dceb587e643e34112ed4df1a175
SHA256

ff112fd7a2986c00b27301184312d0991d9b2b9fa7ab97bf9690809a5e740b28
SHA512

4fa315b70756f932d681809911d10165446e946861cafcd542bb8375b33fe5023f67f4e1fd80f4b78d72ced071eefbd91737077d2c49263908d60a3d15b88bc5
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAI4kv:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7g

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001226d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001226d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2564	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1916	2024-05-27_e1c4317d1dd629c646744b59c9917a91_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1916	2024-05-27_e1c4317d1dd629c646744b59c9917a91_cryptolocker.exe
2564	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 2564	1916	2024-05-27_e1c4317d1dd629c646744b59c9917a91_cryptolocker.exe	28
PID 1916 wrote to memory of 2564	1916	2024-05-27_e1c4317d1dd629c646744b59c9917a91_cryptolocker.exe	28
PID 1916 wrote to memory of 2564	1916	2024-05-27_e1c4317d1dd629c646744b59c9917a91_cryptolocker.exe	28
PID 1916 wrote to memory of 2564	1916	2024-05-27_e1c4317d1dd629c646744b59c9917a91_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-27_e1c4317d1dd629c646744b59c9917a91_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-27_e1c4317d1dd629c646744b59c9917a91_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  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\hurok.exe

Filesize
53KB

MD5
0657bf8a816d410705403fdbb220a80f

SHA1
0733cda8099631c8a929302af6d53783e9f159a8

SHA256
ce9a25619785ad4b369fe5ab923bd088e5d8b37a08cb5dec4fb5944c16e06c4d

SHA512
9945ba749d0f496152be9898dcad0c1f9fb2920b55cbc82beceffdad70bc0669742b5c7e247c12c9f7ec19c0f4098b09be68aefb2fae65fcedb925b204a36865

Download Submit
memory/1916-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1916-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1916-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2564-23-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download