db099f231e4617fd588ba398d8a0887103606138c7e993f68a970ff420a82b2f

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/03/2024, 18:28

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General

Target

2024-03-26_497aa90e64c23fcb5ac4f1edda846a32_cryptolocker.exe
Size

63KB
MD5

497aa90e64c23fcb5ac4f1edda846a32
SHA1

1055cdf986992005aa4288cb80a5d6d6adc5e6c3
SHA256

db099f231e4617fd588ba398d8a0887103606138c7e993f68a970ff420a82b2f
SHA512

940cdf2263dd578759a3f04a5154cb0f2dae0b2e1c4ee4c6e177d4542d6ccb3bb2ea0c81d3445d2e5a086778383dd82d1abbd21a833c3839d6840476cc590861
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x/9lfL+gniDSc9x:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7z

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012249-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012249-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3016	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2952	2024-03-26_497aa90e64c23fcb5ac4f1edda846a32_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
2952	2024-03-26_497aa90e64c23fcb5ac4f1edda846a32_cryptolocker.exe
3016	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2952 wrote to memory of 3016	2952	2024-03-26_497aa90e64c23fcb5ac4f1edda846a32_cryptolocker.exe	28
PID 2952 wrote to memory of 3016	2952	2024-03-26_497aa90e64c23fcb5ac4f1edda846a32_cryptolocker.exe	28
PID 2952 wrote to memory of 3016	2952	2024-03-26_497aa90e64c23fcb5ac4f1edda846a32_cryptolocker.exe	28
PID 2952 wrote to memory of 3016	2952	2024-03-26_497aa90e64c23fcb5ac4f1edda846a32_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-26_497aa90e64c23fcb5ac4f1edda846a32_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_497aa90e64c23fcb5ac4f1edda846a32_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2952
- 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:3016

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
192fe0e8d05fe9b1cc58e4f12db3f10f

SHA1
b58a7da7ea86572eb8ee35f49523c806e6481a53

SHA256
7f8953d6c9e6d11e7cef22440b0cbb3a463cd9d679e62f5747e78b79947b7ccc

SHA512
c6fdc95268243b2ac34fa90f021d22992abdc4f126c2309e7c2ab7c0a396a23e3731830bbd209f82a663bf9fc17984da056cce95b3b75d8efc1e5584e474d547

Download Submit
memory/2952-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2952-1-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2952-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3016-17-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download