9bc9c8241cd7ab7299e9f29433b243cf750689e76725d72ae8fa6a07a4825a57

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
03/10/2024, 02:44

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General

Target

2024-10-03_e6e981727ffb8ba85b1d96929e7329fe_cryptolocker.exe
Size

38KB
MD5

e6e981727ffb8ba85b1d96929e7329fe
SHA1

d14e1f7fd70f24e2e3428e165951623fe8e7e159
SHA256

9bc9c8241cd7ab7299e9f29433b243cf750689e76725d72ae8fa6a07a4825a57
SHA512

26aa83fe6b91788c337c365e18c729d2fa0209ff08c21190c68c3478e355bf4214b8a8492f1ef19c164fa4a9265f18cce7b416f834f84d49f22729276e8c21a3
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkIT+/:qDdFJy3QMOtEvwDpjjWMl7T+/

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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	2024-10-03_e6e981727ffb8ba85b1d96929e7329fe_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1768	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4840-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x00090000000233f3-13.dat	upx
behavioral2/memory/4840-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/1768-27-0x0000000000500000-0x0000000000510000-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	2024-10-03_e6e981727ffb8ba85b1d96929e7329fe_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 4840 wrote to memory of 1768	4840	2024-10-03_e6e981727ffb8ba85b1d96929e7329fe_cryptolocker.exe	82
PID 4840 wrote to memory of 1768	4840	2024-10-03_e6e981727ffb8ba85b1d96929e7329fe_cryptolocker.exe	82
PID 4840 wrote to memory of 1768	4840	2024-10-03_e6e981727ffb8ba85b1d96929e7329fe_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-10-03_e6e981727ffb8ba85b1d96929e7329fe_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-03_e6e981727ffb8ba85b1d96929e7329fe_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4840
- 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:1768

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\asih.exe

Filesize
39KB

MD5
42375115e37c557fd95881669c5085dd

SHA1
c97577974ca3c064d0d3f64fd31ec55733f90c75

SHA256
ff64b83c20e2d060e1e6490d03402279a21230da003747c390ca57001810801f

SHA512
dcd48f02db08e450636605ba869fc602947fde0a37dd401d000875555862f8866cf6e5c7db89fa16aa9112c6a29524b55225226ca8513838eb14dec1dbd6d34c

Download Submit
memory/1768-21-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/1768-20-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/1768-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4840-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4840-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/4840-2-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/4840-3-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/4840-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download