2c870ec034cd5a75bc59b15ad401ff69264c66a8a3e122a420958bf51d76ffff

Analysis

max time kernel
150s
max time network
155s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
06-08-2023 12:01

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General

Target

86c203ac06f073b2071f759c96243c8a_cryptolocker_JC.exe
Size

61KB
MD5

86c203ac06f073b2071f759c96243c8a
SHA1

223510d49a55810b02e2b5033cf3565d25977086
SHA256

2c870ec034cd5a75bc59b15ad401ff69264c66a8a3e122a420958bf51d76ffff
SHA512

2604c60987d17e076281663c8044c3409295ec4e318f1af6ddd61a801f3382753266e8269922e406fd5c1d0d7502f3c949888de294c7e8738cab2def9bb4795a
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xo3/nyxS:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7D

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2520	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1952	86c203ac06f073b2071f759c96243c8a_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
1952	86c203ac06f073b2071f759c96243c8a_cryptolocker_JC.exe
2520	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1952 wrote to memory of 2520	1952	86c203ac06f073b2071f759c96243c8a_cryptolocker_JC.exe	28
PID 1952 wrote to memory of 2520	1952	86c203ac06f073b2071f759c96243c8a_cryptolocker_JC.exe	28
PID 1952 wrote to memory of 2520	1952	86c203ac06f073b2071f759c96243c8a_cryptolocker_JC.exe	28
PID 1952 wrote to memory of 2520	1952	86c203ac06f073b2071f759c96243c8a_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\86c203ac06f073b2071f759c96243c8a_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\86c203ac06f073b2071f759c96243c8a_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1952
- 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:2520

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
3f704c970338640ac6382cfc301a549e

SHA1
8d92f850f79c632b76daa7a9ca26327c1a74e2f2

SHA256
5a1bf3913756fcaa3487ca6e1c5de1a4c53b3f53dfb04386e78d84bf2093e4f7

SHA512
bb95e53089bdf4e50180b1e9865c79a8510eb330e45549fd37d6669cf755a5a9e2ed573a865e1779adc6a14e068d99db1926706889868d65bf91428a2d9c4fde

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

Filesize
61KB

MD5
3f704c970338640ac6382cfc301a549e

SHA1
8d92f850f79c632b76daa7a9ca26327c1a74e2f2

SHA256
5a1bf3913756fcaa3487ca6e1c5de1a4c53b3f53dfb04386e78d84bf2093e4f7

SHA512
bb95e53089bdf4e50180b1e9865c79a8510eb330e45549fd37d6669cf755a5a9e2ed573a865e1779adc6a14e068d99db1926706889868d65bf91428a2d9c4fde

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

Filesize
61KB

MD5
3f704c970338640ac6382cfc301a549e

SHA1
8d92f850f79c632b76daa7a9ca26327c1a74e2f2

SHA256
5a1bf3913756fcaa3487ca6e1c5de1a4c53b3f53dfb04386e78d84bf2093e4f7

SHA512
bb95e53089bdf4e50180b1e9865c79a8510eb330e45549fd37d6669cf755a5a9e2ed573a865e1779adc6a14e068d99db1926706889868d65bf91428a2d9c4fde

Download Submit
memory/1952-54-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1952-56-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1952-55-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2520-70-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download