b4f579ccbda3d20e3f6a97cbc97071699f8af90da18bb30fc1ea87c5d35e3f19

Analysis

max time kernel
134s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12/09/2024, 08:26

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General

Target

2024-09-12_7a3507e1345e0268879393479f9752ff_cryptolocker.exe
Size

36KB
MD5

7a3507e1345e0268879393479f9752ff
SHA1

d231098ecf848b241d718039a9a6ba4d6dbeeb51
SHA256

b4f579ccbda3d20e3f6a97cbc97071699f8af90da18bb30fc1ea87c5d35e3f19
SHA512

bad2ff92c6a58f35fb42fb8269dcf6a79b230abe59af171ee7568d776d880ad9640d2fae71d361635e4f6bd96d8f0f99df6b8da813b3204057cd733d7bf87270
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5jmU3U:bxNrC7kYo1Fxf2rYPL3U

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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	2024-09-12_7a3507e1345e0268879393479f9752ff_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1056	pissa.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	2024-09-12_7a3507e1345e0268879393479f9752ff_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pissa.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4688 wrote to memory of 1056	4688	2024-09-12_7a3507e1345e0268879393479f9752ff_cryptolocker.exe	91
PID 4688 wrote to memory of 1056	4688	2024-09-12_7a3507e1345e0268879393479f9752ff_cryptolocker.exe	91
PID 4688 wrote to memory of 1056	4688	2024-09-12_7a3507e1345e0268879393479f9752ff_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-09-12_7a3507e1345e0268879393479f9752ff_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-12_7a3507e1345e0268879393479f9752ff_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4688
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1056

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4332,i,8293235976513689021,7261015831736501466,262144 --variations-seed-version --mojo-platform-channel-handle=3888 /prefetch:8
1⤵
PID:4940

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

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Downloads

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

Filesize
36KB

MD5
689a94a1e14cd88789d99edcda7f7561

SHA1
091972de35c929cf5d88fcd1df01612ce077b42e

SHA256
ea492408b5108299a677305ce662d1d5f5f251b407b30f5c2e43f7e6cf7f5485

SHA512
e762694c87e57f581508e4005f631a3f5c491565812937953098f4188c481adf9bf99a8fc0c8b8a1058a474600da2c0dcee639cfc24770b6ed2f1742f89a1215

Download Submit
memory/1056-18-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/1056-17-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/4688-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/4688-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/4688-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download