87b292f34eb261a90887c1bef70d70451acb809c27cb3e1943d616ada0e14aba

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
04/08/2023, 17:39

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General

Target

646aa2cdd5662ad5f40698b55ccf4b86_cryptolocker_JC.exe
Size

61KB
MD5

646aa2cdd5662ad5f40698b55ccf4b86
SHA1

b3cdd9bda015d17c0f207376178838f705d5ff21
SHA256

87b292f34eb261a90887c1bef70d70451acb809c27cb3e1943d616ada0e14aba
SHA512

c127c735cbc184ef3e9f70be74343a16e93a2c8f2d04da0705ce7bc48b738920bbeb4776b31b5f21637c04797a808a729020dd3214334662110f674cfdece6f3
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xo3/nyx+l:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7z

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1628	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2136	646aa2cdd5662ad5f40698b55ccf4b86_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
2136	646aa2cdd5662ad5f40698b55ccf4b86_cryptolocker_JC.exe
1628	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2136 wrote to memory of 1628	2136	646aa2cdd5662ad5f40698b55ccf4b86_cryptolocker_JC.exe	29
PID 2136 wrote to memory of 1628	2136	646aa2cdd5662ad5f40698b55ccf4b86_cryptolocker_JC.exe	29
PID 2136 wrote to memory of 1628	2136	646aa2cdd5662ad5f40698b55ccf4b86_cryptolocker_JC.exe	29
PID 2136 wrote to memory of 1628	2136	646aa2cdd5662ad5f40698b55ccf4b86_cryptolocker_JC.exe	29

C:\Users\Admin\AppData\Local\Temp\646aa2cdd5662ad5f40698b55ccf4b86_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\646aa2cdd5662ad5f40698b55ccf4b86_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2136
- 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:1628

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
61KB

MD5
526edc7e9d47b0f4c330146fdb59e128

SHA1
f7b5c95faacad7bcbeb937f4513b0eb5aff6a938

SHA256
0155b896cd5fbe99cabd1bfb7ed1a9e3b4cd62c6b251d375260fb1d9e6727cce

SHA512
ee7ba16da84efc364c15c81d89636138a9d0083d1f2e011d251b405048d8e9572aaf9547045884cc883a79f38147dbfdea3834abdb53ba577497cca34199b764

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

Filesize
61KB

MD5
526edc7e9d47b0f4c330146fdb59e128

SHA1
f7b5c95faacad7bcbeb937f4513b0eb5aff6a938

SHA256
0155b896cd5fbe99cabd1bfb7ed1a9e3b4cd62c6b251d375260fb1d9e6727cce

SHA512
ee7ba16da84efc364c15c81d89636138a9d0083d1f2e011d251b405048d8e9572aaf9547045884cc883a79f38147dbfdea3834abdb53ba577497cca34199b764

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

Filesize
61KB

MD5
526edc7e9d47b0f4c330146fdb59e128

SHA1
f7b5c95faacad7bcbeb937f4513b0eb5aff6a938

SHA256
0155b896cd5fbe99cabd1bfb7ed1a9e3b4cd62c6b251d375260fb1d9e6727cce

SHA512
ee7ba16da84efc364c15c81d89636138a9d0083d1f2e011d251b405048d8e9572aaf9547045884cc883a79f38147dbfdea3834abdb53ba577497cca34199b764

Download Submit
memory/1628-69-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2136-53-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2136-55-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2136-54-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download