81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f

Analysis

max time kernel
70s
max time network
207s
platform
windows7_x64
resource
win7-20220414-en
submitted
24-05-2022 22:14

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General

Target

81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
Size

1.3MB
MD5

0fadc09ff72014be0b6b54239226d438
SHA1

f21a0d5a67973ee2340f64c1bad7f84cf98911f2
SHA256

81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f
SHA512

83283ba9cdc17255f6a6d6087ec7baa3133977c237bd188d733d3a18d29c2dc37540dd32baf0ebbe1453485b218a1c887fc92f693dddeaf33b217af870427171

Score

8^/10

bootkit persistence upx

Malware Config

Signatures

Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exeBugreport-459042.dll

pid process

1760 81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
1404 Bugreport-459042.dll

pid	process
1760	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
1404	Bugreport-459042.dll

UPX packed file 41 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/1376-55-0x00000000026C0000-0x0000000002732000-memory.dmp	upx
behavioral1/memory/1376-56-0x00000000026C0000-0x0000000002732000-memory.dmp	upx
behavioral1/memory/1376-61-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-83-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-99-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-97-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-95-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-93-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-91-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-89-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-87-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-85-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-81-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-79-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-77-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-75-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-73-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-71-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-69-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-67-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-65-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-63-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-59-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-58-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-57-0x0000000010000000-0x000000001003E000-memory.dmp	upx
behavioral1/memory/1376-100-0x0000000010000000-0x000000001003E000-memory.dmp	upx
\Users\Admin\AppData\Local\Temp\81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe	upx
C:\Users\Admin\AppData\Local\Temp\81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe	upx
behavioral1/memory/1760-108-0x0000000010000000-0x000000001003F000-memory.dmp	upx
behavioral1/memory/1760-122-0x0000000010000000-0x000000001003F000-memory.dmp	upx
behavioral1/memory/1760-120-0x0000000010000000-0x000000001003F000-memory.dmp	upx
behavioral1/memory/1760-118-0x0000000010000000-0x000000001003F000-memory.dmp	upx
behavioral1/memory/1760-116-0x0000000010000000-0x000000001003F000-memory.dmp	upx
behavioral1/memory/1760-114-0x0000000010000000-0x000000001003F000-memory.dmp	upx
behavioral1/memory/1760-112-0x0000000010000000-0x000000001003F000-memory.dmp	upx
behavioral1/memory/1760-110-0x0000000010000000-0x000000001003F000-memory.dmp	upx
behavioral1/memory/1760-107-0x0000000010000000-0x000000001003F000-memory.dmp	upx
C:\Users\Admin\AppData\Local\Temp\81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe	upx
behavioral1/memory/1760-105-0x0000000010000000-0x000000001003F000-memory.dmp	upx
behavioral1/memory/1760-151-0x00000000024C0000-0x0000000002532000-memory.dmp	upx
behavioral1/memory/1760-150-0x0000000010000000-0x000000001003F000-memory.dmp	upx

Loads dropped DLL 3 IoCs

Processes:

81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe

pid	process
1376	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
1760	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
1760	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.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
T1067

Processes:

81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe

description ioc process

File opened for modification \??\PhysicalDrive0 81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File opened for modification	\??\PhysicalDrive0	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Main	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe

pid	process
1376	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
1760	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe

Suspicious behavior: RenamesItself 2 IoCs

Processes:

81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe

pid	process
1376	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
1376	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe

Suspicious use of SetWindowsHookEx 10 IoCs

Processes:

81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exeBugreport-459042.dll

pid	process
1376	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
1376	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
1376	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
1760	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
1760	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
1760	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
1760	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
1760	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
1760	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
1404	Bugreport-459042.dll

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe

description	pid	process	target process
PID 1376 wrote to memory of 1760	1376	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
PID 1376 wrote to memory of 1760	1376	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
PID 1376 wrote to memory of 1760	1376	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
PID 1376 wrote to memory of 1760	1376	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
PID 1760 wrote to memory of 1404	1760	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe	Bugreport-459042.dll
PID 1760 wrote to memory of 1404	1760	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe	Bugreport-459042.dll
PID 1760 wrote to memory of 1404	1760	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe	Bugreport-459042.dll
PID 1760 wrote to memory of 1404	1760	81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe	Bugreport-459042.dll

C:\Users\Admin\AppData\Local\Temp\81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
"C:\Users\Admin\AppData\Local\Temp\81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1376
- C:\Users\Admin\AppData\Local\Temp\81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe
  "C:\Users\Admin\AppData\Local\Temp\81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe" ÃüÁîÆô¶¯
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Writes to the Master Boot Record (MBR)
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1760
- - C:\Users\Admin\AppData\Local\Temp\data\Bugreport-459042.dll
    C:\Users\Admin\AppData\Local\Temp\data\Bugreport-459042.dll Bugreport %E8%AF%84%E8%AE%BA%E7%82%B9%20
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    PID:1404

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Modify Registry

T1112

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\Temp\81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe

Filesize
1.2MB

MD5
da0974d6450fb67cd2d8d8730be50223

SHA1
cbf06544078b77229ad5d38bcb0af88abbe38424

SHA256
f4b6642af72a7a0ee5c2622caac393797d81e2fcfcfe8e6f7c487b5139787d42

SHA512
6af001748e3dcf6e7670ca95d0df298b270f36d488aa52619ea14373adb8278a463ac5e5e344cf7538aae581f389d52f55f8cd118d774a60500a5be6a91b4dfb

Download Submit
C:\Users\Admin\AppData\Local\Temp\81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe

Filesize
1.2MB

MD5
da0974d6450fb67cd2d8d8730be50223

SHA1
cbf06544078b77229ad5d38bcb0af88abbe38424

SHA256
f4b6642af72a7a0ee5c2622caac393797d81e2fcfcfe8e6f7c487b5139787d42

SHA512
6af001748e3dcf6e7670ca95d0df298b270f36d488aa52619ea14373adb8278a463ac5e5e344cf7538aae581f389d52f55f8cd118d774a60500a5be6a91b4dfb

Download Submit
C:\Users\Admin\AppData\Local\Temp\data\Bugreport-459042.dll

Filesize
164KB

MD5
0edd22ab675c05c749df2493a536f195

SHA1
e2d4d53225dee6c02154e190e0f0bbdb13fc6be4

SHA256
d788d10af977f5cbdf90918395d2737dc4da85fd3b5b09f0082962f6c497e636

SHA512
7deb116773d3996ee2c0cc3d38ecc9d8ef6fbca3aca681a47b884c562df4bdc0ad9fc9e587a27b590e4bc74e376671dd345b454d5d994ac652fd6f9b401853ce

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

Filesize
81B

MD5
2fab0745ae9bbc98c31ebf4aa13ca1d6

SHA1
b29406f7c5c0368014c926eda6fc159a263eabc1

SHA256
39f5f591d291fdf77925a4f6f144a46bcf4c0c32abbb4cdcd295e0a766eafd97

SHA512
3eba2454d2b2732b6687123102b1334063f2355edb7812c532939101505c6d2814b2036b80cc176be9ae3f948ba217f195c8b4e14f732d850bf1e8e4cd64aa4c

Download Submit
\Users\Admin\AppData\Local\Temp\81c452de78c83531b2ef905b6d15d12f796e02265f823151b29407d7e14a340f.exe

Filesize
1.2MB

MD5
da0974d6450fb67cd2d8d8730be50223

SHA1
cbf06544078b77229ad5d38bcb0af88abbe38424

SHA256
f4b6642af72a7a0ee5c2622caac393797d81e2fcfcfe8e6f7c487b5139787d42

SHA512
6af001748e3dcf6e7670ca95d0df298b270f36d488aa52619ea14373adb8278a463ac5e5e344cf7538aae581f389d52f55f8cd118d774a60500a5be6a91b4dfb

Download Submit
\Users\Admin\AppData\Local\Temp\data\Bugreport-459042.dll

Filesize
164KB

MD5
0edd22ab675c05c749df2493a536f195

SHA1
e2d4d53225dee6c02154e190e0f0bbdb13fc6be4

SHA256
d788d10af977f5cbdf90918395d2737dc4da85fd3b5b09f0082962f6c497e636

SHA512
7deb116773d3996ee2c0cc3d38ecc9d8ef6fbca3aca681a47b884c562df4bdc0ad9fc9e587a27b590e4bc74e376671dd345b454d5d994ac652fd6f9b401853ce

Download Submit
\Users\Admin\AppData\Local\Temp\data\Bugreport-459042.dll

Filesize
164KB

MD5
0edd22ab675c05c749df2493a536f195

SHA1
e2d4d53225dee6c02154e190e0f0bbdb13fc6be4

SHA256
d788d10af977f5cbdf90918395d2737dc4da85fd3b5b09f0082962f6c497e636

SHA512
7deb116773d3996ee2c0cc3d38ecc9d8ef6fbca3aca681a47b884c562df4bdc0ad9fc9e587a27b590e4bc74e376671dd345b454d5d994ac652fd6f9b401853ce

Download Submit
memory/1376-58-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-97-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-91-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-89-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-87-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-85-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-81-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-79-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-77-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-75-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-73-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-71-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-69-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-67-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-65-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-63-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-59-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-54-0x00000000754A1000-0x00000000754A3000-memory.dmp

Filesize
8KB

Download
memory/1376-57-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-100-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-95-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-93-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-55-0x00000000026C0000-0x0000000002732000-memory.dmp

Filesize
456KB

Download
memory/1376-56-0x00000000026C0000-0x0000000002732000-memory.dmp

Filesize
456KB

Download
memory/1376-61-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-83-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1376-99-0x0000000010000000-0x000000001003E000-memory.dmp

Filesize
248KB

Download
memory/1404-158-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1404-154-0x0000000000000000-mapping.dmp

Download
memory/1760-102-0x0000000000000000-mapping.dmp

Download
memory/1760-107-0x0000000010000000-0x000000001003F000-memory.dmp

Filesize
252KB

Download
memory/1760-116-0x0000000010000000-0x000000001003F000-memory.dmp

Filesize
252KB

Download
memory/1760-105-0x0000000010000000-0x000000001003F000-memory.dmp

Filesize
252KB

Download
memory/1760-114-0x0000000010000000-0x000000001003F000-memory.dmp

Filesize
252KB

Download
memory/1760-151-0x00000000024C0000-0x0000000002532000-memory.dmp

Filesize
456KB

Download
memory/1760-150-0x0000000010000000-0x000000001003F000-memory.dmp

Filesize
252KB

Download
memory/1760-118-0x0000000010000000-0x000000001003F000-memory.dmp

Filesize
252KB

Download
memory/1760-110-0x0000000010000000-0x000000001003F000-memory.dmp

Filesize
252KB

Download
memory/1760-120-0x0000000010000000-0x000000001003F000-memory.dmp

Filesize
252KB

Download
memory/1760-112-0x0000000010000000-0x000000001003F000-memory.dmp

Filesize
252KB

Download
memory/1760-122-0x0000000010000000-0x000000001003F000-memory.dmp

Filesize
252KB

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memory/1760-108-0x0000000010000000-0x000000001003F000-memory.dmp

Filesize
252KB

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