a5ab75ff18db7ca2549b1666488d14a68f44e3bf82c1b5b842aa434f01006d71

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
02/08/2023, 19:20

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General

Target

4577db488b581bdc291d3a0e724707ed_cryptolocker_JC.exe
Size

52KB
MD5

4577db488b581bdc291d3a0e724707ed
SHA1

a215077f993b3f356c034823d8f30091136c305c
SHA256

a5ab75ff18db7ca2549b1666488d14a68f44e3bf82c1b5b842aa434f01006d71
SHA512

363d6eb391375957e4ddfb4442ea24856fa2047360ead53a184dae50894b7c530ba94dde5a5945a80b8844d22237924cbe4ba1cf99335c5ca25b38be4af0228b
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzp008xU:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7g

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2844	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2012	4577db488b581bdc291d3a0e724707ed_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
2012	4577db488b581bdc291d3a0e724707ed_cryptolocker_JC.exe
2844	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 2844	2012	4577db488b581bdc291d3a0e724707ed_cryptolocker_JC.exe	28
PID 2012 wrote to memory of 2844	2012	4577db488b581bdc291d3a0e724707ed_cryptolocker_JC.exe	28
PID 2012 wrote to memory of 2844	2012	4577db488b581bdc291d3a0e724707ed_cryptolocker_JC.exe	28
PID 2012 wrote to memory of 2844	2012	4577db488b581bdc291d3a0e724707ed_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\4577db488b581bdc291d3a0e724707ed_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\4577db488b581bdc291d3a0e724707ed_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2012
- 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:2844

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
52KB

MD5
a809fef599ed086d8b33cb3082595688

SHA1
6ca4ef23292ccf785ad0e6cd2241946651ee63b4

SHA256
e0ab6433c3218209127ca4149fc60233a6a33c0230ac386a974a1466424789bb

SHA512
b65449e9175882ae199b92bb2083158a3873ed57b3301bdcf7065507be3ee996d511673c45117682aaadee6752a7c6fd5bb3a93b4d651ae676f88ea7738e1496

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

Filesize
52KB

MD5
a809fef599ed086d8b33cb3082595688

SHA1
6ca4ef23292ccf785ad0e6cd2241946651ee63b4

SHA256
e0ab6433c3218209127ca4149fc60233a6a33c0230ac386a974a1466424789bb

SHA512
b65449e9175882ae199b92bb2083158a3873ed57b3301bdcf7065507be3ee996d511673c45117682aaadee6752a7c6fd5bb3a93b4d651ae676f88ea7738e1496

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

Filesize
52KB

MD5
a809fef599ed086d8b33cb3082595688

SHA1
6ca4ef23292ccf785ad0e6cd2241946651ee63b4

SHA256
e0ab6433c3218209127ca4149fc60233a6a33c0230ac386a974a1466424789bb

SHA512
b65449e9175882ae199b92bb2083158a3873ed57b3301bdcf7065507be3ee996d511673c45117682aaadee6752a7c6fd5bb3a93b4d651ae676f88ea7738e1496

Download Submit
memory/2012-53-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2012-54-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2012-56-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2844-70-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download