124e7566f0c58165a0482b5e59625bf763d322d09ecffcbac5c01d05416f2d1e

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
17/05/2024, 15:26

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General

Target

2024-05-17_11a58cfdd570b533bc1207dcc0185b4a_cryptolocker.exe
Size

37KB
MD5

11a58cfdd570b533bc1207dcc0185b4a
SHA1

7a35816c6993cbd085c0f201aaad699e8d45d243
SHA256

124e7566f0c58165a0482b5e59625bf763d322d09ecffcbac5c01d05416f2d1e
SHA512

417cd25eecdb89e73cbf6386759425254565551f680b2005934c5ff3fcb92064acec1b86364738924de0cf9771a7e1ca65d6e25090cd85a4a81434162241be90
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGp/YIm7wm0WMx:o1KhxqwtdgI2MyzNORQtOflIwoHNV2X3

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001472f-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001472f-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2556	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2000	2024-05-17_11a58cfdd570b533bc1207dcc0185b4a_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
2000	2024-05-17_11a58cfdd570b533bc1207dcc0185b4a_cryptolocker.exe
2556	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 2556	2000	2024-05-17_11a58cfdd570b533bc1207dcc0185b4a_cryptolocker.exe	28
PID 2000 wrote to memory of 2556	2000	2024-05-17_11a58cfdd570b533bc1207dcc0185b4a_cryptolocker.exe	28
PID 2000 wrote to memory of 2556	2000	2024-05-17_11a58cfdd570b533bc1207dcc0185b4a_cryptolocker.exe	28
PID 2000 wrote to memory of 2556	2000	2024-05-17_11a58cfdd570b533bc1207dcc0185b4a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-17_11a58cfdd570b533bc1207dcc0185b4a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-17_11a58cfdd570b533bc1207dcc0185b4a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2000
- 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:2556

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
37KB

MD5
27a76ed280e1f0fb655b271b65aa24a0

SHA1
ebb1388fe39ba4efc29df1f67c37638b42a0cc79

SHA256
250fe45e33024fc4cd0630e41b690464865c4fcb4c7e97e09d50e7e6cdb1ebfa

SHA512
44e079a19369c77343be35abaa626cbcacb520c48b344af9f736c1ba9e2376041e0c57c8ebad35b459e48a22400f53f98e3acc0005b360aa59bd5aa3bbfb55bf

Download Submit
memory/2000-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2000-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2000-8-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2556-23-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download