d6ac9b5838aad1062ed759ee201e77e07314a0434a9236c6f8b54363e79c541b

Analysis

max time kernel
94s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19/11/2024, 14:00

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General

Target

yx_dts.exe
Size

889KB
MD5

09ce8089df9c73890dd0569c053e10c5
SHA1

ca150d526dc7bf9161b8b9da4617ff461d5ae9d9
SHA256

d6ac9b5838aad1062ed759ee201e77e07314a0434a9236c6f8b54363e79c541b
SHA512

414c80288666d609740956aec1f999d07412ee1998574da2374847a46137d828d4b42917c50ab167272313e802da03099bdb6d3518812fa307640c960cf8df6c
SSDEEP

24576:4617vD7Kv8d4lXdcGs3KAh++8JS7+Jrmzo8t:4G7L+TY73l58JS7CKoy

Score

7^/10

bootkit discovery persistence

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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	yx_dts.exe

Executes dropped EXE 3 IoCs

pid	Process
1968	dts.exe
4012	dts.exe
3360	dts.exe

Loads dropped DLL 3 IoCs

pid	Process
2152	yx_dts.exe
2152	yx_dts.exe
2152	yx_dts.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	dts.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 4 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	yx_dts.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dts.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dts.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dts.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
2152	yx_dts.exe
2152	yx_dts.exe
3360	dts.exe
3360	dts.exe
3360	dts.exe
3360	dts.exe
3360	dts.exe
3360	dts.exe
3360	dts.exe
3360	dts.exe
3360	dts.exe
3360	dts.exe
3360	dts.exe
3360	dts.exe
3360	dts.exe
3360	dts.exe
3360	dts.exe
3360	dts.exe
3360	dts.exe
3360	dts.exe
3360	dts.exe
3360	dts.exe
3360	dts.exe
3360	dts.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1968	dts.exe
1968	dts.exe
4012	dts.exe
4012	dts.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 1968	2152	yx_dts.exe	84
PID 2152 wrote to memory of 1968	2152	yx_dts.exe	84
PID 2152 wrote to memory of 1968	2152	yx_dts.exe	84
PID 2152 wrote to memory of 4012	2152	yx_dts.exe	85
PID 2152 wrote to memory of 4012	2152	yx_dts.exe	85
PID 2152 wrote to memory of 4012	2152	yx_dts.exe	85
PID 2152 wrote to memory of 3360	2152	yx_dts.exe	86
PID 2152 wrote to memory of 3360	2152	yx_dts.exe	86
PID 2152 wrote to memory of 3360	2152	yx_dts.exe	86

C:\Users\Admin\AppData\Local\Temp\yx_dts.exe
"C:\Users\Admin\AppData\Local\Temp\yx_dts.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Users\Admin\AppData\Roaming\dts\mydts\dts.exe
  "C:\Users\Admin\AppData\Roaming\dts\mydts\dts.exe" SW_SHOWNORMAL
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1968
- C:\Users\Admin\AppData\Roaming\dts\mydts\dts.exe
  "C:\Users\Admin\AppData\Roaming\dts\mydts\dts.exe" /autorun /setuprun
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4012
- C:\Users\Admin\AppData\Roaming\dts\mydts\dts.exe
  "C:\Users\Admin\AppData\Roaming\dts\mydts\dts.exe" /setupsucc
  2⤵
  - Executes dropped EXE
  - Writes to the Master Boot Record (MBR)
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:3360

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

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\nslA105.tmp\FindProcDLL.dll

Filesize
3KB

MD5
8614c450637267afacad1645e23ba24a

SHA1
e7b7b09b5bbc13e910aa36316d9cc5fc5d4dcdc2

SHA256
0fa04f06a6de18d316832086891e9c23ae606d7784d5d5676385839b21ca2758

SHA512
af46cd679097584ff9a1d894a729b6397f4b3af17dff3e6f07bef257bc7e48ffa341d82daf298616cd5df1450fc5ab7435cacb70f27302b6db193f01a9f8391b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nslA105.tmp\System.dll

Filesize
11KB

MD5
c17103ae9072a06da581dec998343fc1

SHA1
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

SHA256
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

SHA512
d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

Download Submit
C:\Users\Admin\AppData\Roaming\dts\mydts\Lander.ini

Filesize
414B

MD5
73c7eb1e201cadcdfc9263d8e3d982b5

SHA1
c896dc8fbe566a5f37247c13d236ee4ad6872730

SHA256
632bd324dde38adff24c540f99a53d92c2c5ca3c021aff411d4230f70ea7afab

SHA512
5129838fd8c75bfaea668a8a6b433b6b6fd4ba166bed3b822cab2883b72f01cbe1c305435d444bea9c3c485b7e9e8d3779452eda17387cb78af48118ea6e85ee

Download Submit
C:\Users\Admin\AppData\Roaming\dts\mydts\Lander.ini

Filesize
446B

MD5
7b0ad132ee8a6e2eab029203b15b8d57

SHA1
f06f6fea5f627c08d5aa45355459c906a6765e71

SHA256
9c2c35947f62bba1639afa80c683c6fb38800b91c7ddf2b7a28e6ae2b463c388

SHA512
b2b09a1b755a79f894c12cc86c7155441bcc5085a4a9071ae450efdecda775b9b160fca977e4bd0e4bd223ac7364d3f6c183655cd41a6da4d50a56d3908c6bb2

Download Submit
C:\Users\Admin\AppData\Roaming\dts\mydts\dts.exe

Filesize
843KB

MD5
d0e6bfcf97bc61745ba68118df26b971

SHA1
cc3696f5722ee55acddadd8ca5495294d47ae455

SHA256
23b94fb2952b692f6e8e7dbd2bb4ae013cb4ad2c0b99066a2538d5c73b4a4216

SHA512
0c9106d4c9414e54c7c19d8a11b441fd1bfb013e02d5990c7acc5c5c3b73b1a3efd8effd5a98fa5c54033a80b33605f5324084ccb497130ffb366dd44ac80e09

Download Submit
C:\Users\Admin\AppData\Roaming\dts\mydts\lander.ini

Filesize
383B

MD5
48fd2ead551dbd2a88e7c8b1d5ecf506

SHA1
4844fae2d49135936a063b41087601dc22c54e9a

SHA256
b9a7bb9b824a7903b508c3ea1f5128ab098fdaf849b3978549637bf60611073e

SHA512
25644b00513f3a234ce3386ddda7acae2b3a0cb6dbd51c8cbc811e929462553e336659c18684d1e3fcf8d3d0d001e897c15060f7eefc07859dff116b7a2a5681

Download Submit
memory/2152-15-0x0000000004861000-0x0000000004862000-memory.dmp

Filesize
4KB

Download
memory/2152-14-0x0000000004860000-0x0000000004863000-memory.dmp

Filesize
12KB

Download
memory/2152-66-0x0000000004861000-0x0000000004862000-memory.dmp

Filesize
4KB

Download
memory/2152-73-0x0000000004860000-0x0000000004863000-memory.dmp

Filesize
12KB

Download
memory/4012-65-0x0000000000EA0000-0x0000000000EA1000-memory.dmp

Filesize
4KB

Download
memory/4012-67-0x0000000000EA0000-0x0000000000EA1000-memory.dmp

Filesize
4KB

Download