f9576381c49e4a8dfec2b08b31476679f36e51b45025e751b4d892f0722c8c84

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07-09-2024 19:22

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General

Target

2024-09-07_f4c50756999a03941316fd3b041490e9_cryptolocker.exe
Size

50KB
MD5

f4c50756999a03941316fd3b041490e9
SHA1

7313be6af310e4aa742ef5efe419d73e3150f765
SHA256

f9576381c49e4a8dfec2b08b31476679f36e51b45025e751b4d892f0722c8c84
SHA512

13e66001e67e5e86f2c06481314156b14900e11d3e6476f2d8cf3d50dd860ee1d39815351ccea6337d66ece3f2d0644b85c85040c2de694830d51fc679355c87
SSDEEP

768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/DpkcBJ/:P6Q0ElP6G+gJQMOtEvwDpjB8WMlf3

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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	2024-09-07_f4c50756999a03941316fd3b041490e9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1004	asih.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	2024-09-07_f4c50756999a03941316fd3b041490e9_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 4792 wrote to memory of 1004	4792	2024-09-07_f4c50756999a03941316fd3b041490e9_cryptolocker.exe	84
PID 4792 wrote to memory of 1004	4792	2024-09-07_f4c50756999a03941316fd3b041490e9_cryptolocker.exe	84
PID 4792 wrote to memory of 1004	4792	2024-09-07_f4c50756999a03941316fd3b041490e9_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-07_f4c50756999a03941316fd3b041490e9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-07_f4c50756999a03941316fd3b041490e9_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4792
- 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:1004

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\asih.exe

Filesize
50KB

MD5
bc9ebbdb5c30e13f69cdb3098160b33f

SHA1
e0c4a1f690a4e80682a4b037adc2bf7f2b2c087d

SHA256
bad5a8f557c31410f13b64dfb99557e363512f6d156984e050ef2e1af1445051

SHA512
3153f855fe01172bdf16bf950bf72ac0f07337794084d77096a0d2f4e21c31e71e2a0186a12797fad592e4fb9a5acf79898c984388427451ba847c6ebb623386

Download Submit
memory/1004-20-0x0000000001FE0000-0x0000000001FE6000-memory.dmp

Filesize
24KB

Download
memory/1004-19-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/1004-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4792-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4792-1-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/4792-2-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/4792-3-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/4792-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download