3927cd46077cb6392960d3f4449b2f6f35bbd39cd86fa32341a0c38e1ed29ed2

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08/05/2024, 03:28

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General

Target

2024-05-08_487acf2ae809cd6f0b91cd5426ffbadd_cryptolocker.exe
Size

50KB
MD5

487acf2ae809cd6f0b91cd5426ffbadd
SHA1

f57fc1bf16fd1ddcfe104acbc4d05e196bbe0a33
SHA256

3927cd46077cb6392960d3f4449b2f6f35bbd39cd86fa32341a0c38e1ed29ed2
SHA512

61ba8858390f6cff89979c7071936b5cb54fa9222e90cae83808f8a213a56e84c9f3f6847e8e593a5e5c788a85e6765c69371cd79a596ab0d0fad0a6d0d0564f
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIC0e:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7F

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000f000000012334-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000f000000012334-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2272	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
868	2024-05-08_487acf2ae809cd6f0b91cd5426ffbadd_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
868	2024-05-08_487acf2ae809cd6f0b91cd5426ffbadd_cryptolocker.exe
2272	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 868 wrote to memory of 2272	868	2024-05-08_487acf2ae809cd6f0b91cd5426ffbadd_cryptolocker.exe	28
PID 868 wrote to memory of 2272	868	2024-05-08_487acf2ae809cd6f0b91cd5426ffbadd_cryptolocker.exe	28
PID 868 wrote to memory of 2272	868	2024-05-08_487acf2ae809cd6f0b91cd5426ffbadd_cryptolocker.exe	28
PID 868 wrote to memory of 2272	868	2024-05-08_487acf2ae809cd6f0b91cd5426ffbadd_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-08_487acf2ae809cd6f0b91cd5426ffbadd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-08_487acf2ae809cd6f0b91cd5426ffbadd_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:868
- 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:2272

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
50KB

MD5
5cf2e3540089adb0dc1c8c4b3fcce798

SHA1
c8757c142ae9fa370ae98b622a4757c78a9ca129

SHA256
00202149343100e4959ddad9bc3711ae251f4e18ffa26a064a45ca5872dbd3e1

SHA512
bb446c8870125955a7b0f9d62d101bd98e247480639b99748f65470e0876e0373df57547ffa3a01e64d4107c869e0e4050875052ea610fef3e690ada2b7b8b16

Download Submit
memory/868-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/868-0-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/868-8-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2272-23-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download