c2244b633be97a88d30b9efffa2df5475833883dcb187dc896594d5483da6210

Analysis

max time kernel
15s
max time network
20s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
21/09/2024, 14:17

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General

Target

c2244b633be97a88d30b9efffa2df5475833883dcb187dc896594d5483da6210.exe
Size

4.8MB
MD5

72edb6848339f6b26d27f32104c5ed21
SHA1

b416c0a4e3cb3c8fb8be6e46b11755d762d32ee7
SHA256

c2244b633be97a88d30b9efffa2df5475833883dcb187dc896594d5483da6210
SHA512

a151118a347c80d0f6744fb9cc8a5d29b214f74a2ada0560350d36f3f9a2feb350048cf7f809b94aabd44bd5fc2559c5c7408248f59f8ad9a0ce1dd7bdee7aa7
SSDEEP

98304:nXHfZysNkdeOVWB4PGrx2fEyMmzHJhYlRJL:nPx1dx2f9MmzHwP

Score

7^/10

bootkit discovery persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
1856	c2244b633be97a88d30b9efffa2df5475833883dcb187dc896594d5483da6210.exe
1856	c2244b633be97a88d30b9efffa2df5475833883dcb187dc896594d5483da6210.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	c2244b633be97a88d30b9efffa2df5475833883dcb187dc896594d5483da6210.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\LuDaShi\{7B8161CA-4C8A-42f1-9056-38D80980A934}.tf	c2244b633be97a88d30b9efffa2df5475833883dcb187dc896594d5483da6210.exe
File created	C:\Program Files (x86)\LuDaShi\{B706988E-9F1A-4c9b-9CAD-18AD559DB2F1}.tmp\{050EC667-A56E-41c8-A713-8F3BE89DEFD3}.tf	c2244b633be97a88d30b9efffa2df5475833883dcb187dc896594d5483da6210.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2788	1856	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 1 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	c2244b633be97a88d30b9efffa2df5475833883dcb187dc896594d5483da6210.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1856 wrote to memory of 2788	1856	c2244b633be97a88d30b9efffa2df5475833883dcb187dc896594d5483da6210.exe	30
PID 1856 wrote to memory of 2788	1856	c2244b633be97a88d30b9efffa2df5475833883dcb187dc896594d5483da6210.exe	30
PID 1856 wrote to memory of 2788	1856	c2244b633be97a88d30b9efffa2df5475833883dcb187dc896594d5483da6210.exe	30
PID 1856 wrote to memory of 2788	1856	c2244b633be97a88d30b9efffa2df5475833883dcb187dc896594d5483da6210.exe	30

C:\Users\Admin\AppData\Local\Temp\c2244b633be97a88d30b9efffa2df5475833883dcb187dc896594d5483da6210.exe
"C:\Users\Admin\AppData\Local\Temp\c2244b633be97a88d30b9efffa2df5475833883dcb187dc896594d5483da6210.exe"
1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1856
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1856 -s 720
  2⤵
  - Program crash
  PID:2788

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 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\{9990737A-3392-4485-8D79-7219F02958AB}.tmp\NetBridge.dll

Filesize
231KB

MD5
9d145902fb5b9a6da62ac85761434e31

SHA1
c817d77f59e3767d75cf5f5298d6b5711308f7e5

SHA256
98d795d55329b1057f4fd590468e648a8c34b620207fd9a0a6953f3e98d1ea43

SHA512
bbb3109bcd5ded909bfdaeb7f4f006fc5928a9bc501bad5ae8ba9805bc0d924a2c4da8bbd215480db936d663852abd9b0435fa241a40224a4cd93c4b7aff79a9

Download Submit
\Users\Admin\AppData\Local\Temp\{1F0AD249-DC85-4e09-88AC-BE3C54BCDFC8}.tmp\7z.dll

Filesize
1.1MB

MD5
2706693dda10c6cc79eed24c56d4e5ef

SHA1
4f34ef1bd49273a0d260b9dab15c73eb0ccb6383

SHA256
0edad8a1af22d5b97c1f324791c86243a6ecce7b5a9d2f30415af99aba9129c3

SHA512
7e7f7ae894528587ba33b6e10999549bb9a2ec2748b5662fa1b8806e5f4ce33af47507b3ef2954f2747a76b5b7c775c1cd671061f577c5016d1f8ba165bbe21c

Download Submit
memory/1856-27-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads