2c850d227999659060dd5e57fe12227ecf2fc6ceb032d6b58372f8c205d94581

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 05:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-09-19_31807953693dfb28ca5c7ccab40ab5cb_cryptolocker.exe
Size

43KB
MD5

31807953693dfb28ca5c7ccab40ab5cb
SHA1

4f3243622fca17f5a96000ac47ee32e9d4730e01
SHA256

2c850d227999659060dd5e57fe12227ecf2fc6ceb032d6b58372f8c205d94581
SHA512

517634775d847c5034062817ee1e8ba28b3dfe80b226c39b56a4162103f24cee549daf404ac60f5ccf83206f26bd210deeadb8a48cbf01d2e98d5514a5943787
SSDEEP

768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAqjr3:bCDOw9aMDooc+vAqjb

Score

7^/10

discovery

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	2024-09-19_31807953693dfb28ca5c7ccab40ab5cb_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
5088	lossy.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_31807953693dfb28ca5c7ccab40ab5cb_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lossy.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3352 wrote to memory of 5088	3352	2024-09-19_31807953693dfb28ca5c7ccab40ab5cb_cryptolocker.exe	82
PID 3352 wrote to memory of 5088	3352	2024-09-19_31807953693dfb28ca5c7ccab40ab5cb_cryptolocker.exe	82
PID 3352 wrote to memory of 5088	3352	2024-09-19_31807953693dfb28ca5c7ccab40ab5cb_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-19_31807953693dfb28ca5c7ccab40ab5cb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_31807953693dfb28ca5c7ccab40ab5cb_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3352
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:5088

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
43KB

MD5
45bf1b8610c05ea6fc4bcd02aa3ef65c

SHA1
42a3c464c06a069aeda5c26cc4864a2866751928

SHA256
e32772db2c34a3471da67a388366fafb78cdcb83397a3cb7ffd9fb17ed03cbad

SHA512
a4f7fcf148c5a1b3ad337722d2fa2f6719cf0945f46ff66d637d8bd4dbcd283ce615ba2c3c6a03274d8c0abdc20d65facb00e2f8944cf67c1b1dbdadbd6268cb

Download Submit
memory/3352-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/3352-1-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/3352-2-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/3352-3-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/3352-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/5088-19-0x0000000001FC0000-0x0000000001FC6000-memory.dmp

Filesize
24KB

Download
memory/5088-20-0x0000000001FE0000-0x0000000001FE6000-memory.dmp

Filesize
24KB

Download
memory/5088-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download