b2458efbd6ed86331b8d322c9989d9d9ff99ac7a0d04e1986e0956340b7a8045

Analysis

max time kernel
133s
max time network
164s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
01-01-2024 17:38

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General

Target

b2458efbd6ed86331b8d322c9989d9d9ff99ac7a0d04e1986e0956340b7a8045.exe
Size

4.8MB
MD5

ed29463a911779e265daef3eb8a6efe8
SHA1

f94f612cbc5ee1448e00b9f19b5c16986f2fc304
SHA256

b2458efbd6ed86331b8d322c9989d9d9ff99ac7a0d04e1986e0956340b7a8045
SHA512

1151c81ca56e4ae9f093ae7a40c02aee90ad320808bfedb2c1ecd22f7ecec12fda1bacc6438c97340fc83856593c7dc2020c5041dacd386e2f800df682c738c5
SSDEEP

98304:seLpmrmc2lAu28lkcf5YjovKqGYiOE8oLj5YINfSyo8aXb:TcmZl85gyjovK65E8ob5Sx8aXb

Score

7^/10

bootkit persistence

Malware Config

Signatures

Loads dropped DLL 3 IoCs

pid	Process
2264	b2458efbd6ed86331b8d322c9989d9d9ff99ac7a0d04e1986e0956340b7a8045.exe
2264	b2458efbd6ed86331b8d322c9989d9d9ff99ac7a0d04e1986e0956340b7a8045.exe
2264	b2458efbd6ed86331b8d322c9989d9d9ff99ac7a0d04e1986e0956340b7a8045.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	b2458efbd6ed86331b8d322c9989d9d9ff99ac7a0d04e1986e0956340b7a8045.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\b2458efbd6ed86331b8d322c9989d9d9ff99ac7a0d04e1986e0956340b7a8045.exe
"C:\Users\Admin\AppData\Local\Temp\b2458efbd6ed86331b8d322c9989d9d9ff99ac7a0d04e1986e0956340b7a8045.exe"
1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
PID:2264

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

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

Filesize
234KB

MD5
cd03029957ebc78c0ca7a6c02a9ca846

SHA1
0044114b8073781479044f0294701be9611be2ac

SHA256
139fdd92e6ddf1aac0761a68502b374daa32e82039621018511dc491ed9b4048

SHA512
14c641cb9536def0ddc1969d50b97b83a23017c97373e3ad74d3fbf9825ac81f3fdf8169281c8ad4cebd45d9c9ae05f752d553ba4653e620889b274479cb7c32

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

Filesize
2.1MB

MD5
c35ab236702291f1a2d090af8ea253d9

SHA1
d7f58f0f5fee6b26564af3c5d7ab6defe5a4608d

SHA256
c4dba892a9a1fb675d06dd615c4fc079e9f4e12a8368e8bd18e37137ed567f35

SHA512
87a3fa1927ad2fad117055411a471be95275a4d4bf99ee3ab522faee70067b239bb77ddd94c4300958607efd4a3fc071df2262754557fca2530e70f2c438a068

Download Submit
\Users\Admin\AppData\Local\Temp\{924AE432-6724-4543-A274-3E20BF6CD164}.tmp\7z.dll

Filesize
1.1MB

MD5
a46135bdd574092d85955070e72d5aad

SHA1
aad137b0a883fea22b7118778512ffc7865513bc

SHA256
aa57160684feb240a85da677caaf7cf6a08b7349d89ae9cb4a3476884d80aac5

SHA512
72188f348d9ae33e2b5a7886c80667cc3015bfac170249537baa9e31abf8d63ca198903206feb64887f1d509a1b9bfc9f54ede8b3aa26bee3f5c4375e5c6a24b

Download Submit
memory/2264-34-0x0000000002610000-0x0000000002611000-memory.dmp

Filesize
4KB

Download
memory/2264-35-0x0000000002610000-0x0000000002611000-memory.dmp

Filesize
4KB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads