a526e7f011f1c8662af15383f43b5f5c48a26bb3981fcd964e03eab838949e9f

Analysis

max time kernel
142s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231020-en
resource tags

arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
submitted
23/10/2023, 19:44

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General

Target

NEAS.2023-09-06_e9c5b1014bb7cba414f89aa675be7bd3_cryptolocker_JC.exe
Size

36KB
MD5

e9c5b1014bb7cba414f89aa675be7bd3
SHA1

8024ff408520bd7ae5c235b369b59d5a8a0abf16
SHA256

a526e7f011f1c8662af15383f43b5f5c48a26bb3981fcd964e03eab838949e9f
SHA512

7bcef00ed86f1140f0d4ef8e47b916adaf096686c714b0fb5364f47a42b5a634c7bcd246128dea2056d463a03ead5f8b59f519895408bec5cce018f79e3c1004
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGpNEmNOmnQBDna:o1KhxqwtdgI2MyzNORQtOflIwoHNV2X7

Score

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\Control Panel\International\Geo\Nation	hurok.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1873812795-1433807462-1429862679-1000\Control Panel\International\Geo\Nation	NEAS.2023-09-06_e9c5b1014bb7cba414f89aa675be7bd3_cryptolocker_JC.exe

Executes dropped EXE 1 IoCs

pid	Process
4856	hurok.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 964 wrote to memory of 4856	964	NEAS.2023-09-06_e9c5b1014bb7cba414f89aa675be7bd3_cryptolocker_JC.exe	88
PID 964 wrote to memory of 4856	964	NEAS.2023-09-06_e9c5b1014bb7cba414f89aa675be7bd3_cryptolocker_JC.exe	88
PID 964 wrote to memory of 4856	964	NEAS.2023-09-06_e9c5b1014bb7cba414f89aa675be7bd3_cryptolocker_JC.exe	88

C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-06_e9c5b1014bb7cba414f89aa675be7bd3_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-06_e9c5b1014bb7cba414f89aa675be7bd3_cryptolocker_JC.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:964
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4856

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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
36KB

MD5
99a26c94dfd44f36ff3ec72f2b9645f5

SHA1
da0e60095b9df13c1479803cf54d3f170966703c

SHA256
27ccb82ae585a5eb828698189240846fe5f89d5063b646d562bd7a96fd2949a3

SHA512
c3767762dcccfaccbd8bd2ac5ef3e518b6ffdca6f3bb3ba4dd6e23328c2572a31732e7c95c2506bf580496c0cf506a872f1128bfee485ae074ac9904b700337c

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

Filesize
36KB

MD5
99a26c94dfd44f36ff3ec72f2b9645f5

SHA1
da0e60095b9df13c1479803cf54d3f170966703c

SHA256
27ccb82ae585a5eb828698189240846fe5f89d5063b646d562bd7a96fd2949a3

SHA512
c3767762dcccfaccbd8bd2ac5ef3e518b6ffdca6f3bb3ba4dd6e23328c2572a31732e7c95c2506bf580496c0cf506a872f1128bfee485ae074ac9904b700337c

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

Filesize
36KB

MD5
99a26c94dfd44f36ff3ec72f2b9645f5

SHA1
da0e60095b9df13c1479803cf54d3f170966703c

SHA256
27ccb82ae585a5eb828698189240846fe5f89d5063b646d562bd7a96fd2949a3

SHA512
c3767762dcccfaccbd8bd2ac5ef3e518b6ffdca6f3bb3ba4dd6e23328c2572a31732e7c95c2506bf580496c0cf506a872f1128bfee485ae074ac9904b700337c

Download Submit
memory/964-0-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/964-1-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/964-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4856-19-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download