Malware Analysis Report

2024-07-28 11:02

Sample ID 240625-2gnvssxfpg
Target 63dda37804a7e693d0c29109a4820266cf1a3d71fe31365124dd37a543c4cea2
SHA256 63dda37804a7e693d0c29109a4820266cf1a3d71fe31365124dd37a543c4cea2
Tags
upx bootkit oss_ak persistence
score
9/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
9/10

SHA256

63dda37804a7e693d0c29109a4820266cf1a3d71fe31365124dd37a543c4cea2

Threat Level: Likely malicious

The file 63dda37804a7e693d0c29109a4820266cf1a3d71fe31365124dd37a543c4cea2 was found to be: Likely malicious.

Malicious Activity Summary

upx bootkit oss_ak persistence

detect oss ak

Loads dropped DLL

UPX packed file

Executes dropped EXE

Writes to the Master Boot Record (MBR)

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-25 22:33

Signatures

UPX packed file

upx
Description Indicator Process Target
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Unsigned PE

Description Indicator Process Target
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Analysis: behavioral1

Detonation Overview

Submitted

2024-06-25 22:33

Reported

2024-06-25 22:35

Platform

win7-20240221-en

Max time kernel

141s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\63dda37804a7e693d0c29109a4820266cf1a3d71fe31365124dd37a543c4cea2.exe"

Signatures

detect oss ak

oss_ak
Description Indicator Process Target
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Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\data\Bugreport-262558.dll N/A

UPX packed file

upx
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Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\63dda37804a7e693d0c29109a4820266cf1a3d71fe31365124dd37a543c4cea2.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\63dda37804a7e693d0c29109a4820266cf1a3d71fe31365124dd37a543c4cea2.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\63dda37804a7e693d0c29109a4820266cf1a3d71fe31365124dd37a543c4cea2.exe

"C:\Users\Admin\AppData\Local\Temp\63dda37804a7e693d0c29109a4820266cf1a3d71fe31365124dd37a543c4cea2.exe"

C:\Users\Admin\AppData\Local\Temp\data\Bugreport-262558.dll

C:\Users\Admin\AppData\Local\Temp\data\Bugreport-262558.dll Bugreport %E9%AA%A8%E5%A4%B4QQ%E7%A9%BA%E9%97%B4%E8%AE%BF%E5%AE%A2%E7%9B%91%E6%8E%A7%E6%8F%90%20

Network

Country Destination Domain Proto
US 8.8.8.8:53 d.gutousoft.com udp
CN 120.24.75.226:80 d.gutousoft.com tcp
US 8.8.8.8:53 d8.gutou.link udp
CN 120.24.75.226:80 d8.gutou.link tcp
US 8.8.8.8:53 vip.gutou.cc udp
US 8.8.8.8:53 y.gutousoft.com udp
CN 203.195.236.181:80 vip.gutou.cc tcp
CN 120.24.75.226:80 y.gutousoft.com tcp
CN 203.195.236.181:80 vip.gutou.cc tcp
US 8.8.8.8:53 vip2.gutou.cc udp
CN 120.24.75.226:80 vip2.gutou.cc tcp
CN 203.195.236.181:80 vip.gutou.cc tcp
CN 120.24.75.226:80 vip2.gutou.cc tcp
CN 203.195.236.181:80 vip.gutou.cc tcp
CN 120.24.75.226:80 vip2.gutou.cc tcp
CN 203.195.236.181:80 vip.gutou.cc tcp
CN 120.24.75.226:80 vip2.gutou.cc tcp

Files

memory/1912-0-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-1-0x0000000000400000-0x0000000000838200-memory.dmp

memory/1912-4-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-37-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-53-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-52-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-49-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-47-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-45-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-42-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-40-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-34-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-54-0x0000000002600000-0x0000000002672000-memory.dmp

memory/1912-55-0x0000000002600000-0x0000000002672000-memory.dmp

memory/1912-31-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-29-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-25-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-24-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-22-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-19-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-17-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-15-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-10-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-11-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-8-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-3-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-2-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-58-0x0000000000400000-0x0000000000838200-memory.dmp

memory/1912-60-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1912-62-0x0000000002600000-0x0000000002672000-memory.dmp

memory/1912-64-0x0000000000400000-0x0000000000838200-memory.dmp

\Users\Admin\AppData\Local\Temp\data\Bugreport-262558.dll

MD5 7fdb3cf6274195df5710ee4d4b8a79cd
SHA1 3066dd0d224310f2fb611bcb859830507d34bf29
SHA256 c02a8a03e0e9ea75d6d125afb2480b2d18df3aa6b01c4676b9e47c16a26e6fe2
SHA512 2fb62592a872a0e344fa6c7b73eafa393bd5c638b881bd38e087921adc42032a59b837826b5dea670124e7e9e877dc83d18645404fec146abda3afb56fc708df

memory/1912-72-0x0000000004A40000-0x0000000004A78000-memory.dmp

memory/1600-79-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1912-78-0x0000000004A40000-0x0000000004A78000-memory.dmp

memory/1600-96-0x0000000000400000-0x0000000000438000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\data\Bugreport.ini

MD5 5f6e15c1e9e6f5692e131222cc026a91
SHA1 9ebde1096802864802a53ea64269e2c000fbf624
SHA256 79249b50cb8da364ad4f0b76394ad587e6c45da314ee72c98057bf070afb61bc
SHA512 d9b12ce4df8c35e53233cc526d450f9bb9265d28129209247e891751b4ea51290572f35a393a1f811f18062bf2c136f9d971589873d9176169b14fd13dac1255

C:\Users\Admin\AppData\Local\Temp\data\Bugreport_error.ini

MD5 6f9cbd7ce5b4f59737a3f10ed8fb632b
SHA1 bd592062b4bb145efaddcf164da6f64ad9b75844
SHA256 69d885a370e7311c792a4f56f341190be0ce19dc39eaee7f0f294ff717af4603
SHA512 7362014c048dc3b92c983fb3dc93fa8dd0938aea8a057aae6f93645de603cfe7d349cee16ef7d2e82548024157f1786f9758576385baf47533c5e454b6b1dd90

memory/1912-102-0x0000000000400000-0x0000000000838200-memory.dmp

memory/1912-107-0x0000000000400000-0x0000000000838200-memory.dmp

memory/1912-116-0x0000000000400000-0x0000000000838200-memory.dmp

memory/1912-121-0x0000000000400000-0x0000000000838200-memory.dmp

memory/1912-130-0x0000000000400000-0x0000000000838200-memory.dmp

memory/1912-134-0x0000000000400000-0x0000000000838200-memory.dmp

memory/1912-135-0x0000000000400000-0x0000000000838200-memory.dmp

memory/1912-136-0x0000000000400000-0x0000000000838200-memory.dmp

memory/1912-137-0x0000000000400000-0x0000000000838200-memory.dmp

memory/1912-138-0x0000000000400000-0x0000000000838200-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-25 22:33

Reported

2024-06-25 22:35

Platform

win10v2004-20240611-en

Max time kernel

141s

Max time network

102s

Command Line

"C:\Users\Admin\AppData\Local\Temp\63dda37804a7e693d0c29109a4820266cf1a3d71fe31365124dd37a543c4cea2.exe"

Signatures

detect oss ak

oss_ak
Description Indicator Process Target
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Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\data\Bugreport-524766.dll N/A

UPX packed file

upx
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Writes to the Master Boot Record (MBR)

bootkit persistence
Description Indicator Process Target
File opened for modification \??\PhysicalDrive0 C:\Users\Admin\AppData\Local\Temp\63dda37804a7e693d0c29109a4820266cf1a3d71fe31365124dd37a543c4cea2.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\63dda37804a7e693d0c29109a4820266cf1a3d71fe31365124dd37a543c4cea2.exe

"C:\Users\Admin\AppData\Local\Temp\63dda37804a7e693d0c29109a4820266cf1a3d71fe31365124dd37a543c4cea2.exe"

C:\Users\Admin\AppData\Local\Temp\data\Bugreport-524766.dll

C:\Users\Admin\AppData\Local\Temp\data\Bugreport-524766.dll Bugreport %E9%AA%A8%E5%A4%B4QQ%E7%A9%BA%E9%97%B4%E8%AE%BF%E5%AE%A2%E7%9B%91%E6%8E%A7%E6%8F%90%20

Network

Country Destination Domain Proto
US 8.8.8.8:53 d.gutousoft.com udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
CN 120.24.75.226:80 d.gutousoft.com tcp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
BE 88.221.83.219:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 219.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 d8.gutou.link udp
CN 120.24.75.226:80 d8.gutou.link tcp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 y.gutousoft.com udp
US 8.8.8.8:53 vip.gutou.cc udp
CN 203.195.236.181:80 vip.gutou.cc tcp
CN 120.24.75.226:80 y.gutousoft.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
CN 203.195.236.181:80 vip.gutou.cc tcp
US 8.8.8.8:53 vip2.gutou.cc udp
CN 120.24.75.226:80 vip2.gutou.cc tcp
CN 203.195.236.181:80 vip.gutou.cc tcp
CN 120.24.75.226:80 vip2.gutou.cc tcp
CN 203.195.236.181:80 vip.gutou.cc tcp
CN 120.24.75.226:80 vip2.gutou.cc tcp
US 52.111.227.13:443 tcp
CN 203.195.236.181:80 vip.gutou.cc tcp
CN 120.24.75.226:80 vip2.gutou.cc tcp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

memory/1568-0-0x0000000000400000-0x0000000000838200-memory.dmp

memory/1568-2-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-1-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-43-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-44-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-45-0x00000000029F0000-0x0000000002A62000-memory.dmp

memory/1568-46-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-41-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-38-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-36-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-34-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-32-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-26-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-24-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-20-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-18-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-49-0x00000000029F0000-0x0000000002A62000-memory.dmp

memory/1568-12-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-10-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-8-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-6-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-3-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-4-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-30-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-28-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-22-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-16-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-14-0x0000000010000000-0x000000001003F000-memory.dmp

memory/1568-50-0x0000000000400000-0x0000000000838200-memory.dmp

memory/1568-52-0x00000000029F0000-0x0000000002A62000-memory.dmp

memory/1568-54-0x0000000000400000-0x0000000000838200-memory.dmp

C:\Users\Admin\AppData\Local\Temp\data\Bugreport-524766.dll

MD5 e3105546c42d458f5e948fafe709e2d6
SHA1 4b5c829757958c1fbf4e04aa3480e23b88c5e487
SHA256 f3dd5612e47e4ace9795322f3c3bde17d11f02df9fdd2a2f474607728c2f13c1
SHA512 c09add59aee3146df488409a1fc078dc26e675cff102e7f928ebaf4bb8d5bf87c7866caa1d8208a4c67c4c5d236a4853b90e936735eec7534ffd0d44d4b513d0

memory/372-63-0x0000000000400000-0x0000000000438000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\data\Bugreport.ini

MD5 0f3c9acdab0663bb10b483412e2204dc
SHA1 f5f5348aec1279e68c09d405daa7f428dd491421
SHA256 1fec17599f37beb5f1338e6fafcafca8048c745253d12f7ddc8e69044d28776a
SHA512 99f7e8e3b4d8436b44e82c75c4d00a50f2e09ef1a17167c1a4d54d5a2f88788052c78d1b0f234b89dd572721c9c0e0fcdf8a3a20633d11d5172f45f043284e23

C:\Users\Admin\AppData\Local\Temp\data\Bugreport_error.ini

MD5 fdf8fb8cbbfbb87d9ac44966ba53678a
SHA1 fd306c570e8c02a66c731d6e054e941a60f64d45
SHA256 0ee6fba0f70dd3be82a7398b5c2564baaf2a346287fe45c79324cab92f62fb9c
SHA512 c37243d5c4d370a041f03b3e54d4111c9d300fff63db7397cae066ec2a86cd829b9e2f41af45a1ecf6701f337068fcf8af45706add719ca13630c478701cf92f

memory/372-80-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1568-82-0x0000000000400000-0x0000000000838200-memory.dmp

memory/1568-91-0x0000000000400000-0x0000000000838200-memory.dmp

memory/1568-100-0x0000000000400000-0x0000000000838200-memory.dmp

memory/1568-105-0x0000000000400000-0x0000000000838200-memory.dmp

memory/1568-114-0x0000000000400000-0x0000000000838200-memory.dmp

memory/1568-118-0x0000000000400000-0x0000000000838200-memory.dmp

memory/1568-119-0x0000000000400000-0x0000000000838200-memory.dmp

memory/1568-120-0x0000000000400000-0x0000000000838200-memory.dmp

memory/1568-121-0x0000000000400000-0x0000000000838200-memory.dmp

memory/1568-122-0x0000000000400000-0x0000000000838200-memory.dmp