c877b47499859c8b5f19dcfefeab69f1857f337438a6b177ca9b5c4af85c0732

Analysis

max time kernel
147s
max time network
154s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19/09/2024, 17:21

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General

Target

2024-09-19_a22a0487a76890f0bd70ba7639bad294_cryptolocker.exe
Size

95KB
MD5

a22a0487a76890f0bd70ba7639bad294
SHA1

032053df388b20738959533112f251403bd8774e
SHA256

c877b47499859c8b5f19dcfefeab69f1857f337438a6b177ca9b5c4af85c0732
SHA512

e1c36237971cc36b211c96ff018e046b913ce598e23f28e7031f8e97c5507ea190d5e6e07fa1918c37855130a13e31171f17da2d25601c409f6d0db0e8ff14a7
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjgx/ky:zCsanOtEvwDpjBt

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2232	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1568	2024-09-19_a22a0487a76890f0bd70ba7639bad294_cryptolocker.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1568-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x001500000000f6b0-11.dat	upx
behavioral1/memory/1568-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2232-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2232-26-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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_a22a0487a76890f0bd70ba7639bad294_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	misid.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1568 wrote to memory of 2232	1568	2024-09-19_a22a0487a76890f0bd70ba7639bad294_cryptolocker.exe	29
PID 1568 wrote to memory of 2232	1568	2024-09-19_a22a0487a76890f0bd70ba7639bad294_cryptolocker.exe	29
PID 1568 wrote to memory of 2232	1568	2024-09-19_a22a0487a76890f0bd70ba7639bad294_cryptolocker.exe	29
PID 1568 wrote to memory of 2232	1568	2024-09-19_a22a0487a76890f0bd70ba7639bad294_cryptolocker.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-09-19_a22a0487a76890f0bd70ba7639bad294_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_a22a0487a76890f0bd70ba7639bad294_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1568
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2232

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

\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
95KB

MD5
af2521bb71cf80e58aa0d776897da696

SHA1
c029ad6f90c25f559ceca0081ccda4548860534b

SHA256
30a5c6b9bed9ced7cd4aa35f9f73d3fb7fa5c9959ab70d22944ec0b69c759ef6

SHA512
0bc4bd4b4787faf4f9b15f5b02e97f9d870b6ecc05517d84a5f9bc051a68b2570e2e6bd5f4f1071edf51e1d9a608863b95e292fc5f71fea90d7f1b0ffb3176df

Download Submit
memory/1568-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1568-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1568-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1568-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1568-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2232-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2232-18-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2232-19-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2232-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download