4d7aaee6476e11e07d60b626bbe9c221a8e873ca24d98c2e6576e4857f9867b7

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29/08/2024, 08:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-08-29_d401e16331aa775c4de37cbf05b1cac9_cryptolocker.exe
Size

79KB
MD5

d401e16331aa775c4de37cbf05b1cac9
SHA1

a14f28396c1ce89186f579318c883789cd093343
SHA256

4d7aaee6476e11e07d60b626bbe9c221a8e873ca24d98c2e6576e4857f9867b7
SHA512

7ee83ac7dfd8b2dbbc794fcf8a961dd0e2959513df7fd0ef2e34010643427ca12894a638a81c1fa6ee0797f428f28a9e02878fccf141562718a416d23ba5d52f
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOAkXtBdxPUxnxk1:T6a+rdOOtEvwDpjNtHP1

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	2024-08-29_d401e16331aa775c4de37cbf05b1cac9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1348	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4120-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x0008000000023468-13.dat	upx
behavioral2/memory/4120-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/1348-26-0x0000000000500000-0x0000000000510000-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	2024-08-29_d401e16331aa775c4de37cbf05b1cac9_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4120 wrote to memory of 1348	4120	2024-08-29_d401e16331aa775c4de37cbf05b1cac9_cryptolocker.exe	84
PID 4120 wrote to memory of 1348	4120	2024-08-29_d401e16331aa775c4de37cbf05b1cac9_cryptolocker.exe	84
PID 4120 wrote to memory of 1348	4120	2024-08-29_d401e16331aa775c4de37cbf05b1cac9_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-08-29_d401e16331aa775c4de37cbf05b1cac9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-29_d401e16331aa775c4de37cbf05b1cac9_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4120
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1348

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\asih.exe

Filesize
79KB

MD5
9098ea89bf54e8a0f7b9d460247a79e5

SHA1
e03adc5453216b61c056472e94dfb593c96a4988

SHA256
553e3b307fdbb67f67b01c974fe879e5a3dfd6e28ace449ea0aafc4b31d9d887

SHA512
2edeec2b48b1f2cbeb238b0927477ad968849c0d02f9b3093d2ec0081123c1843c39ab34756682d0ea1eae96a1f83f8cc90184b353949c2b7d2a24e6ba78f707

Download Submit
memory/1348-20-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/1348-19-0x0000000000840000-0x0000000000846000-memory.dmp

Filesize
24KB

Download
memory/1348-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4120-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4120-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/4120-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/4120-3-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/4120-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download