3a51444e6e988eaac0aee3b76ad9ca4f150952126e2b0f6d35e58791256f5929

Analysis

max time kernel
130s
max time network
142s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
31/10/2023, 15:38

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General

Target

NEAS.2023-09-05_8d3c7361192c82a0c1296ae26ed8e88f_cryptolocker_JC.exe
Size

60KB
MD5

8d3c7361192c82a0c1296ae26ed8e88f
SHA1

d9fc0420f3a6cd2ce2f94b2fdf687d547407b53f
SHA256

3a51444e6e988eaac0aee3b76ad9ca4f150952126e2b0f6d35e58791256f5929
SHA512

3d361b26bcf6e0b0e40637c7221e04567bb7e365418af7b4b3c855bd6ac4348cbe929b24be47200d6a223236d362d7f6686c93e1b6138d58bc9913a1f8903f64
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF2995:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7R

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2708	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2136	NEAS.2023-09-05_8d3c7361192c82a0c1296ae26ed8e88f_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	NEAS.2023-09-05_8d3c7361192c82a0c1296ae26ed8e88f_cryptolocker_JC.exe
2708	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2136 wrote to memory of 2708	2136	NEAS.2023-09-05_8d3c7361192c82a0c1296ae26ed8e88f_cryptolocker_JC.exe	28
PID 2136 wrote to memory of 2708	2136	NEAS.2023-09-05_8d3c7361192c82a0c1296ae26ed8e88f_cryptolocker_JC.exe	28
PID 2136 wrote to memory of 2708	2136	NEAS.2023-09-05_8d3c7361192c82a0c1296ae26ed8e88f_cryptolocker_JC.exe	28
PID 2136 wrote to memory of 2708	2136	NEAS.2023-09-05_8d3c7361192c82a0c1296ae26ed8e88f_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-05_8d3c7361192c82a0c1296ae26ed8e88f_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-05_8d3c7361192c82a0c1296ae26ed8e88f_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:2708

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
60KB

MD5
8298abc061b0c1913361db4620349b99

SHA1
7c58016966b78b626dcaa505ad3f99c88a03bde6

SHA256
5f40555714405d6bdbc5bc434174b7272e2e5f8faf5cba7da2ba1f7afe510b9b

SHA512
5f97825cfdae62df0e5a73f3abedde1051ef5f41fbec0807d2e09211e5c1345b9b47f424e7b960b78e020e2ef4ca125327b31b50ea43e388b7827071f895808f

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

Filesize
60KB

MD5
8298abc061b0c1913361db4620349b99

SHA1
7c58016966b78b626dcaa505ad3f99c88a03bde6

SHA256
5f40555714405d6bdbc5bc434174b7272e2e5f8faf5cba7da2ba1f7afe510b9b

SHA512
5f97825cfdae62df0e5a73f3abedde1051ef5f41fbec0807d2e09211e5c1345b9b47f424e7b960b78e020e2ef4ca125327b31b50ea43e388b7827071f895808f

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

Filesize
60KB

MD5
8298abc061b0c1913361db4620349b99

SHA1
7c58016966b78b626dcaa505ad3f99c88a03bde6

SHA256
5f40555714405d6bdbc5bc434174b7272e2e5f8faf5cba7da2ba1f7afe510b9b

SHA512
5f97825cfdae62df0e5a73f3abedde1051ef5f41fbec0807d2e09211e5c1345b9b47f424e7b960b78e020e2ef4ca125327b31b50ea43e388b7827071f895808f

Download Submit
memory/2136-0-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2136-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2136-2-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2708-17-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download