c04ed4f5a23b48c07c2fe9d4f2b12d8732a35bb82e11c1f985b095e31ee5bf0d

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
15/04/2024, 10:18

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General

Target

2024-04-15_e1501105b8b4e848fd3cc9a0736aa253_cryptolocker.exe
Size

64KB
MD5

e1501105b8b4e848fd3cc9a0736aa253
SHA1

98a61cd56d6d685e4d81891bcda0261533a244b1
SHA256

c04ed4f5a23b48c07c2fe9d4f2b12d8732a35bb82e11c1f985b095e31ee5bf0d
SHA512

573825ca4ac8f88b6e75b338a3739f571a3296e4b60b26272ce699ff58cd6044bc85be6339114b583e0d26f4db4a7d089eb3ea47fb2d3957ebc8fa330ec7cd0b
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293B85:aq7tdgI2MyzNORQtOflIwoHNV2XBFV78

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012253-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012253-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2484	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2856	2024-04-15_e1501105b8b4e848fd3cc9a0736aa253_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
2856	2024-04-15_e1501105b8b4e848fd3cc9a0736aa253_cryptolocker.exe
2484	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2856 wrote to memory of 2484	2856	2024-04-15_e1501105b8b4e848fd3cc9a0736aa253_cryptolocker.exe	28
PID 2856 wrote to memory of 2484	2856	2024-04-15_e1501105b8b4e848fd3cc9a0736aa253_cryptolocker.exe	28
PID 2856 wrote to memory of 2484	2856	2024-04-15_e1501105b8b4e848fd3cc9a0736aa253_cryptolocker.exe	28
PID 2856 wrote to memory of 2484	2856	2024-04-15_e1501105b8b4e848fd3cc9a0736aa253_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-15_e1501105b8b4e848fd3cc9a0736aa253_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_e1501105b8b4e848fd3cc9a0736aa253_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2856
- 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:2484

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
64KB

MD5
70fe033bdb88e60ccc27ec3317317717

SHA1
d382d53161a1677f1d2ef0672f6cec3e7c6fe4b5

SHA256
1da91e6894a30cce21643da3c237c8dc583ded571b1d51b10aafa088a187d7e6

SHA512
6955c5cdfe8fc09e8c8e8ee45cce8c771d4aeb8feca28cad35dc390525efc8e104aaee3113cad8fc8b86c755bf12f6405a9f2eeb5de86875fd8e6143ea2737bf

Download Submit
memory/2856-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2856-2-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2856-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download