848ed379006a7098fed09bbd34ada7a76829fde12a3f0a204e6fbed2dd202929

Analysis

max time kernel
150s
max time network
191s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/03/2024, 18:32

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General

Target

2024-03-09_2acfc20d9c89e96958bc719aa57cfa03_cryptolocker.exe
Size

63KB
MD5

2acfc20d9c89e96958bc719aa57cfa03
SHA1

3f795696505c841f0bd3a4e84943a7169920e180
SHA256

848ed379006a7098fed09bbd34ada7a76829fde12a3f0a204e6fbed2dd202929
SHA512

b433b39a236374eff53d8be7d260892e77cab497b095dde4e4cb7cfeeef995ac5f59c9b23091c4a36543c6394b85b8f157a5bb4b929304026ca819789056a363
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293B83:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7G

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012248-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012248-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2584	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1720	2024-03-09_2acfc20d9c89e96958bc719aa57cfa03_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
1720	2024-03-09_2acfc20d9c89e96958bc719aa57cfa03_cryptolocker.exe
2584	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 2584	1720	2024-03-09_2acfc20d9c89e96958bc719aa57cfa03_cryptolocker.exe	30
PID 1720 wrote to memory of 2584	1720	2024-03-09_2acfc20d9c89e96958bc719aa57cfa03_cryptolocker.exe	30
PID 1720 wrote to memory of 2584	1720	2024-03-09_2acfc20d9c89e96958bc719aa57cfa03_cryptolocker.exe	30
PID 1720 wrote to memory of 2584	1720	2024-03-09_2acfc20d9c89e96958bc719aa57cfa03_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-03-09_2acfc20d9c89e96958bc719aa57cfa03_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_2acfc20d9c89e96958bc719aa57cfa03_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1720
- 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:2584

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
63KB

MD5
95ad407a9959a8ecff19978cec4a61bf

SHA1
777cbf0bf5cefc07f464808d669b79c054902d90

SHA256
d906a7178da41d071f377ecf561fab5801ce0c34fd15449a29046f021f9fee07

SHA512
502cf594eb30d3c05010b88ca6778411e915fdb07693cbbef19916570fda8babd81d0be824f51eac295d53dd1cac4aefe07d99a66f79723e1b2a3dc269f64641

Download Submit
memory/1720-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1720-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1720-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2584-22-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download