c85bda7d8da013345bbda8c124024d3f8f5ca4dfd48e3584d3c0eabe8761f359

Analysis

max time kernel
138s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
14-01-2024 01:34

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General

Target

c85bda7d8da013345bbda8c124024d3f8f5ca4dfd48e3584d3c0eabe8761f359.exe
Size

4.8MB
MD5

2b5b1fb2bcdc43eceb1535aee280a5bf
SHA1

64b484fe777af9497ddc9c3917be9bd50d0aa9d9
SHA256

c85bda7d8da013345bbda8c124024d3f8f5ca4dfd48e3584d3c0eabe8761f359
SHA512

cf799185bce5dd1efba821c8484165d65000f2ac361d3c3daef99ae0ce632eecf99cac9854470d58175ddf24e348fd99689df418d37ccf3c9c81ed195e3236ca
SSDEEP

98304:WeLpmrmc2lAu28lkcf5YjovKqGYiOE8oLj5dIClU3OOQO+YA:FcmZl85gyjovK65E8oEClU3oO1A

Score

7^/10

bootkit persistence

Malware Config

Signatures

Loads dropped DLL 3 IoCs

pid	Process
3300	c85bda7d8da013345bbda8c124024d3f8f5ca4dfd48e3584d3c0eabe8761f359.exe
3300	c85bda7d8da013345bbda8c124024d3f8f5ca4dfd48e3584d3c0eabe8761f359.exe
3300	c85bda7d8da013345bbda8c124024d3f8f5ca4dfd48e3584d3c0eabe8761f359.exe

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	c85bda7d8da013345bbda8c124024d3f8f5ca4dfd48e3584d3c0eabe8761f359.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

C:\Users\Admin\AppData\Local\Temp\c85bda7d8da013345bbda8c124024d3f8f5ca4dfd48e3584d3c0eabe8761f359.exe
"C:\Users\Admin\AppData\Local\Temp\c85bda7d8da013345bbda8c124024d3f8f5ca4dfd48e3584d3c0eabe8761f359.exe"
1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
PID:3300

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\LDSGameMaster\Store\360Base\360NetUL.dll

Filesize
234KB

MD5
cd03029957ebc78c0ca7a6c02a9ca846

SHA1
0044114b8073781479044f0294701be9611be2ac

SHA256
139fdd92e6ddf1aac0761a68502b374daa32e82039621018511dc491ed9b4048

SHA512
14c641cb9536def0ddc1969d50b97b83a23017c97373e3ad74d3fbf9825ac81f3fdf8169281c8ad4cebd45d9c9ae05f752d553ba4653e620889b274479cb7c32

Download Submit
C:\Users\Admin\AppData\Local\LDSGameMaster\Store\360Base\Utils\LDSBasic.dll

Filesize
2.1MB

MD5
c35ab236702291f1a2d090af8ea253d9

SHA1
d7f58f0f5fee6b26564af3c5d7ab6defe5a4608d

SHA256
c4dba892a9a1fb675d06dd615c4fc079e9f4e12a8368e8bd18e37137ed567f35

SHA512
87a3fa1927ad2fad117055411a471be95275a4d4bf99ee3ab522faee70067b239bb77ddd94c4300958607efd4a3fc071df2262754557fca2530e70f2c438a068

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\CCM17AA0\mgame[1].txt

Filesize
2B

MD5
444bcb3a3fcf8389296c49467f27e1d6

SHA1
7a85f4764bbd6daf1c3545efbbf0f279a6dc0beb

SHA256
2689367b205c16ce32ed4200942b8b8b1e262dfc70d9bc9fbc77c49699a4f1df

SHA512
9fbbbb5a0f329f9782e2356fa41d89cf9b3694327c1a934d6af2a9df2d7f936ce83717fb513196a4ce5548471708cd7134c2ae99b3c357bcabb2eafc7b9b7570

Download Submit
C:\Users\Admin\AppData\Local\Temp\{B7890D2A-7D73-418f-A037-146824E09024}.tmp\7z.dll

Filesize
1.1MB

MD5
a46135bdd574092d85955070e72d5aad

SHA1
aad137b0a883fea22b7118778512ffc7865513bc

SHA256
aa57160684feb240a85da677caaf7cf6a08b7349d89ae9cb4a3476884d80aac5

SHA512
72188f348d9ae33e2b5a7886c80667cc3015bfac170249537baa9e31abf8d63ca198903206feb64887f1d509a1b9bfc9f54ede8b3aa26bee3f5c4375e5c6a24b

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads