84699199780851a326b9fd6a24ab544271861861ff1d2ca70d44cd311ec46bc3

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
14/09/2024, 16:40

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General

Target

84699199780851a326b9fd6a24ab544271861861ff1d2ca70d44cd311ec46bc3.exe
Size

4.8MB
MD5

6aec8df2b974b71fa79aa00d2f6c5964
SHA1

df139b1cbe883d850f33a2042ddd0118fa3d9c1f
SHA256

84699199780851a326b9fd6a24ab544271861861ff1d2ca70d44cd311ec46bc3
SHA512

713b90276dde8eb454137393ddbef2f1cee73a1bd4bf7cc602be37b5a248320897915a43b4abb6dddd28888c9d561fb7ae609cb966495566b0b72318f3bfa3a1
SSDEEP

98304:uVeM4VwHuokyfn8PGcx2HynIiprw0F80XZsB3N:cAVw3kx2SnIe84E3N

Score

7^/10

bootkit discovery persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
2404	84699199780851a326b9fd6a24ab544271861861ff1d2ca70d44cd311ec46bc3.exe
2404	84699199780851a326b9fd6a24ab544271861861ff1d2ca70d44cd311ec46bc3.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	84699199780851a326b9fd6a24ab544271861861ff1d2ca70d44cd311ec46bc3.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\LuDaShi\{33DE9B76-1CB7-422b-A1F5-92B66FAE9F7C}.tmp\{CDAB76C3-8CAA-4d23-B78A-D336EBC17BBE}.tf	84699199780851a326b9fd6a24ab544271861861ff1d2ca70d44cd311ec46bc3.exe
File created	C:\Program Files (x86)\LuDaShi\{003D0111-419E-4b93-ACE7-13CA582DF0BF}.tf	84699199780851a326b9fd6a24ab544271861861ff1d2ca70d44cd311ec46bc3.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2872	2404	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	84699199780851a326b9fd6a24ab544271861861ff1d2ca70d44cd311ec46bc3.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2404 wrote to memory of 2872	2404	84699199780851a326b9fd6a24ab544271861861ff1d2ca70d44cd311ec46bc3.exe	30
PID 2404 wrote to memory of 2872	2404	84699199780851a326b9fd6a24ab544271861861ff1d2ca70d44cd311ec46bc3.exe	30
PID 2404 wrote to memory of 2872	2404	84699199780851a326b9fd6a24ab544271861861ff1d2ca70d44cd311ec46bc3.exe	30
PID 2404 wrote to memory of 2872	2404	84699199780851a326b9fd6a24ab544271861861ff1d2ca70d44cd311ec46bc3.exe	30

C:\Users\Admin\AppData\Local\Temp\84699199780851a326b9fd6a24ab544271861861ff1d2ca70d44cd311ec46bc3.exe
"C:\Users\Admin\AppData\Local\Temp\84699199780851a326b9fd6a24ab544271861861ff1d2ca70d44cd311ec46bc3.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:2404
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2404 -s 780
  2⤵
  - Program crash
  PID:2872

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\{498440B8-F217-4a32-AC1B-DA26A1600609}.tmp\NetBridge.dll

Filesize
231KB

MD5
9d145902fb5b9a6da62ac85761434e31

SHA1
c817d77f59e3767d75cf5f5298d6b5711308f7e5

SHA256
98d795d55329b1057f4fd590468e648a8c34b620207fd9a0a6953f3e98d1ea43

SHA512
bbb3109bcd5ded909bfdaeb7f4f006fc5928a9bc501bad5ae8ba9805bc0d924a2c4da8bbd215480db936d663852abd9b0435fa241a40224a4cd93c4b7aff79a9

Download Submit
\Users\Admin\AppData\Local\Temp\{8D79AAF7-4089-47b3-BEBF-CBABFDB76873}.tmp\7z.dll

Filesize
1.1MB

MD5
2888126384d873cc49af32bbe34bb296

SHA1
fe74877bcaec93c7d67dab2ce8c86cfc38402d22

SHA256
aba19501a8033495664879e09e60e4788537d387cf038fa8769e5b178bccdcb4

SHA512
f283b721b27d85fbc7a4e1e91ab1683da0c3888f632873625c4c2b48caa170471aaa84e107230988f615d3f43e40a640607d6e6f641aed59788dee441801748a

Download Submit
memory/2404-39-0x0000000000850000-0x0000000000851000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads