c994aadf61fdf2ae5014fa754ad422e756e34b4e169b6e1b3b361279af569c1c

Analysis

max time kernel
122s
max time network
127s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29/09/2024, 12:16

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General

Target

c994aadf61fdf2ae5014fa754ad422e756e34b4e169b6e1b3b361279af569c1c.exe
Size

4.8MB
MD5

73fe2ee15551ae3cbd826681a2fee6c6
SHA1

fc576a679fe5fd0ce2904411e4b3614bc36dd832
SHA256

c994aadf61fdf2ae5014fa754ad422e756e34b4e169b6e1b3b361279af569c1c
SHA512

21244928322c2497e9a55aaaeb95447813e69970d55791fc4a6fef5ba813efc7ffa92b606754549ddebb72ce2bd9c98445f2f109a83f0ebf30288dc491ba10a6
SSDEEP

98304:TVeM4VwHuokyfO8PGcx2HynIiprw0F80XZ/Kg/:5AVw+kx2SnIe84Cg/

Score

7^/10

bootkit discovery persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
2700	c994aadf61fdf2ae5014fa754ad422e756e34b4e169b6e1b3b361279af569c1c.exe
2700	c994aadf61fdf2ae5014fa754ad422e756e34b4e169b6e1b3b361279af569c1c.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	c994aadf61fdf2ae5014fa754ad422e756e34b4e169b6e1b3b361279af569c1c.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\LuDaShi\{BDA8092C-5D1A-46ed-87E2-E9FED7FDAF44}.tf	c994aadf61fdf2ae5014fa754ad422e756e34b4e169b6e1b3b361279af569c1c.exe
File created	C:\Program Files (x86)\LuDaShi\{6B6E2840-C576-4334-85F2-774120222A33}.tmp\{1314E51F-E166-47a1-99E3-3358F82F1080}.tf	c994aadf61fdf2ae5014fa754ad422e756e34b4e169b6e1b3b361279af569c1c.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2504	2700	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	c994aadf61fdf2ae5014fa754ad422e756e34b4e169b6e1b3b361279af569c1c.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2700 wrote to memory of 2504	2700	c994aadf61fdf2ae5014fa754ad422e756e34b4e169b6e1b3b361279af569c1c.exe	30
PID 2700 wrote to memory of 2504	2700	c994aadf61fdf2ae5014fa754ad422e756e34b4e169b6e1b3b361279af569c1c.exe	30
PID 2700 wrote to memory of 2504	2700	c994aadf61fdf2ae5014fa754ad422e756e34b4e169b6e1b3b361279af569c1c.exe	30
PID 2700 wrote to memory of 2504	2700	c994aadf61fdf2ae5014fa754ad422e756e34b4e169b6e1b3b361279af569c1c.exe	30

C:\Users\Admin\AppData\Local\Temp\c994aadf61fdf2ae5014fa754ad422e756e34b4e169b6e1b3b361279af569c1c.exe
"C:\Users\Admin\AppData\Local\Temp\c994aadf61fdf2ae5014fa754ad422e756e34b4e169b6e1b3b361279af569c1c.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:2700
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2700 -s 868
  2⤵
  - Program crash
  PID:2504

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\lds_setup.log

Filesize
978B

MD5
543cb4fa4b9643712668e7189677a4dc

SHA1
c34b0ea0fbd56af81432db874751e2a0255d8dce

SHA256
cf98f57cf3f9b847093173520ec1422a8c1b6db611f5fcd0b4134722a86a2548

SHA512
dbfe3046b715aa545ab8211eae84302e1671379a3e5b13d42cadf8fc3061b15a1dee52cd61778cef1e57e511ffbaea145ae7762216f9323c3a0a17e51a0d5eb4

Download Submit
\Users\Admin\AppData\Local\Temp\{33341A9A-07DD-4abe-9E45-3A973769AF61}.tmp\7z.dll

Filesize
1.1MB

MD5
2888126384d873cc49af32bbe34bb296

SHA1
fe74877bcaec93c7d67dab2ce8c86cfc38402d22

SHA256
aba19501a8033495664879e09e60e4788537d387cf038fa8769e5b178bccdcb4

SHA512
f283b721b27d85fbc7a4e1e91ab1683da0c3888f632873625c4c2b48caa170471aaa84e107230988f615d3f43e40a640607d6e6f641aed59788dee441801748a

Download Submit
\Users\Admin\AppData\Local\Temp\{7242E91F-BDF0-40b9-B414-2E6F5201E0E5}.tmp\NetBridge.dll

Filesize
231KB

MD5
9d145902fb5b9a6da62ac85761434e31

SHA1
c817d77f59e3767d75cf5f5298d6b5711308f7e5

SHA256
98d795d55329b1057f4fd590468e648a8c34b620207fd9a0a6953f3e98d1ea43

SHA512
bbb3109bcd5ded909bfdaeb7f4f006fc5928a9bc501bad5ae8ba9805bc0d924a2c4da8bbd215480db936d663852abd9b0435fa241a40224a4cd93c4b7aff79a9

Download Submit
memory/2700-39-0x0000000000A70000-0x0000000000A71000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads