66f78a5607bedbe6640e338d27964fb3722c876004c5874b1771814f51b32c72

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-09-2024 14:26

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General

Target

2024-09-19_a9fe5d552f24ec985517ad471ffcd69e_cryptolocker.exe
Size

39KB
MD5

a9fe5d552f24ec985517ad471ffcd69e
SHA1

7bef0cdefd8c13d7560565582e0b2d03f7272e7c
SHA256

66f78a5607bedbe6640e338d27964fb3722c876004c5874b1771814f51b32c72
SHA512

a92b3678465a91e41724197aab031b0a27bd0fac67d2ece471a5c2fcbad89db3c958ac82e08978aee9cb4e0e8a360fb79f573584629730b25eee07f71dcbac9b
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGpebVIYLHA3Kx7:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xm

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2752	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2288	2024-09-19_a9fe5d552f24ec985517ad471ffcd69e_cryptolocker.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-19_a9fe5d552f24ec985517ad471ffcd69e_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hurok.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2288	2024-09-19_a9fe5d552f24ec985517ad471ffcd69e_cryptolocker.exe
2752	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2288 wrote to memory of 2752	2288	2024-09-19_a9fe5d552f24ec985517ad471ffcd69e_cryptolocker.exe	30
PID 2288 wrote to memory of 2752	2288	2024-09-19_a9fe5d552f24ec985517ad471ffcd69e_cryptolocker.exe	30
PID 2288 wrote to memory of 2752	2288	2024-09-19_a9fe5d552f24ec985517ad471ffcd69e_cryptolocker.exe	30
PID 2288 wrote to memory of 2752	2288	2024-09-19_a9fe5d552f24ec985517ad471ffcd69e_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-19_a9fe5d552f24ec985517ad471ffcd69e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_a9fe5d552f24ec985517ad471ffcd69e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2288
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  PID:2752

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
39KB

MD5
8ded7ba9ba8075c7177fbbe856bca4f2

SHA1
1805fbc6d56120235230e8e0d8d9feb209b0e8a2

SHA256
9926a0306bf068acc1fb88dc8198725421b5257d999da6bd10df49e759ce1294

SHA512
b801e081f83041cd149f8a5b2d7d333a55d96df6fc0ce6848837ede5fd3d9b7a4e60eea6b9be76df03202c907ad6b154766d907775a46ab3b323bdd84e075085

Download Submit
memory/2288-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2288-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2288-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2752-23-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download