567b812bc0f84fe5431b3ccf10ca5bf8f319953639328240541293bb12fa8079

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12/10/2024, 05:30

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General

Target

2024-10-12_4620d2e7e991e1b16a4bfe5df2abf6b4_cryptolocker.exe
Size

28KB
MD5

4620d2e7e991e1b16a4bfe5df2abf6b4
SHA1

1e71180e54f8074969b0a832e2876e9094b3215e
SHA256

567b812bc0f84fe5431b3ccf10ca5bf8f319953639328240541293bb12fa8079
SHA512

26ce4f6eb25e479115775f381601fd05ef5f23f0d742a0ca051964611b5ed949de25bb4c005c73951453304ee230857e9398f0c976547a0220d737841df56eb8
SSDEEP

384:bFgFQrdSmuQ8WFqxpj5cpyIuYxVe3FSr+OLfjDp+0g/HNblX7QCOBqJ:bFgm5zusFUB2preAr+Ofjg0STX73OBqJ

Score

7^/10

discovery upx

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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	2024-10-12_4620d2e7e991e1b16a4bfe5df2abf6b4_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4768	lossy.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4504-0-0x0000000008000000-0x000000000800E000-memory.dmp	upx
behavioral2/files/0x0010000000023bc5-13.dat	upx
behavioral2/memory/4504-18-0x0000000008000000-0x000000000800E000-memory.dmp	upx
behavioral2/memory/4768-27-0x0000000008000000-0x000000000800E000-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	2024-10-12_4620d2e7e991e1b16a4bfe5df2abf6b4_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 4504 wrote to memory of 4768	4504	2024-10-12_4620d2e7e991e1b16a4bfe5df2abf6b4_cryptolocker.exe	84
PID 4504 wrote to memory of 4768	4504	2024-10-12_4620d2e7e991e1b16a4bfe5df2abf6b4_cryptolocker.exe	84
PID 4504 wrote to memory of 4768	4504	2024-10-12_4620d2e7e991e1b16a4bfe5df2abf6b4_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-10-12_4620d2e7e991e1b16a4bfe5df2abf6b4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_4620d2e7e991e1b16a4bfe5df2abf6b4_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4504
- 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:4768

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

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Downloads

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

Filesize
28KB

MD5
b78d9dc5d7a26cc5e6c67534a2a05c3d

SHA1
38e92c3e898f724627298ddf2e2fac36b8b7ef1f

SHA256
30488309328680f9b4fd0a1575473b403b029ead2f9275488f28fe5260968ae9

SHA512
9fcc34b8616ff30e4ccba157f5343e1a8b0185538f98ecf6d05d562e5cce478373160f66515cf2fd9941e633ee4386f65c1bf1ac4c216204134423f280ab218a

Download Submit
memory/4504-0-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download
memory/4504-1-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/4504-2-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/4504-3-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/4504-18-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download
memory/4768-20-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/4768-26-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/4768-27-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download