e47b8740904e9583137a0ad4fd922639d24ada1412df70dd1f7a45513be8744b

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
03/09/2023, 11:27

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General

Target

2023-08-22_a94c942d4a76c2c3ada89f1b7e8b3a8c_cryptolocker_JC.exe
Size

59KB
MD5

a94c942d4a76c2c3ada89f1b7e8b3a8c
SHA1

c1a82efbbfa6f138ed74a1d5047665a151cfbc95
SHA256

e47b8740904e9583137a0ad4fd922639d24ada1412df70dd1f7a45513be8744b
SHA512

202c18b6f7f2ce84c6fe5a7f7e49a3d117ccd1150225ce10da1312a964472ab11c8df20fc681a1d12c6bf38c314795ff7ef2a59a0190d28c23447477f3ed8944
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF29B:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7j

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2288	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2428	2023-08-22_a94c942d4a76c2c3ada89f1b7e8b3a8c_cryptolocker_JC.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
2428	2023-08-22_a94c942d4a76c2c3ada89f1b7e8b3a8c_cryptolocker_JC.exe
2288	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2428 wrote to memory of 2288	2428	2023-08-22_a94c942d4a76c2c3ada89f1b7e8b3a8c_cryptolocker_JC.exe	28
PID 2428 wrote to memory of 2288	2428	2023-08-22_a94c942d4a76c2c3ada89f1b7e8b3a8c_cryptolocker_JC.exe	28
PID 2428 wrote to memory of 2288	2428	2023-08-22_a94c942d4a76c2c3ada89f1b7e8b3a8c_cryptolocker_JC.exe	28
PID 2428 wrote to memory of 2288	2428	2023-08-22_a94c942d4a76c2c3ada89f1b7e8b3a8c_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\2023-08-22_a94c942d4a76c2c3ada89f1b7e8b3a8c_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\2023-08-22_a94c942d4a76c2c3ada89f1b7e8b3a8c_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2428
- 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:2288

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

C:\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
59KB

MD5
9cf6bfc61745ff822f8f3ba77fd4178e

SHA1
15e83ad6c3977ebdc71425d15042b0b6005f7294

SHA256
4d463618a7161d20327772c22b86d6e77fe95fe785bf5b945682ff33e887bffb

SHA512
427e5dd1c866785f85b7a32ec821f6495ce7e1c94095fd96ef6d9288e2f27f314338f3cf4348cb53cc16807617d19dc9b6fc2f5aa9bc3edbe91ea9c9f24802e2

Download Submit
C:\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
59KB

MD5
9cf6bfc61745ff822f8f3ba77fd4178e

SHA1
15e83ad6c3977ebdc71425d15042b0b6005f7294

SHA256
4d463618a7161d20327772c22b86d6e77fe95fe785bf5b945682ff33e887bffb

SHA512
427e5dd1c866785f85b7a32ec821f6495ce7e1c94095fd96ef6d9288e2f27f314338f3cf4348cb53cc16807617d19dc9b6fc2f5aa9bc3edbe91ea9c9f24802e2

Download Submit
\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
59KB

MD5
9cf6bfc61745ff822f8f3ba77fd4178e

SHA1
15e83ad6c3977ebdc71425d15042b0b6005f7294

SHA256
4d463618a7161d20327772c22b86d6e77fe95fe785bf5b945682ff33e887bffb

SHA512
427e5dd1c866785f85b7a32ec821f6495ce7e1c94095fd96ef6d9288e2f27f314338f3cf4348cb53cc16807617d19dc9b6fc2f5aa9bc3edbe91ea9c9f24802e2

Download Submit
memory/2288-16-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2428-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2428-1-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2428-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download