e0a7ad89d9c251b9db83cbd4d52768d8a69b75eeea560bba3116ecaa668bff61

General

Target

e0a7ad89d9c251b9db83cbd4d52768d8a69b75eeea560bba3116ecaa668bff61.dll
Size

240KB
MD5

228f848abec3a31f488b3010de196332
SHA1

9bf038303197bdfa2188795104bc1a72d76fc4ab
SHA256

e0a7ad89d9c251b9db83cbd4d52768d8a69b75eeea560bba3116ecaa668bff61
SHA512

0c95436278513930afc17e0895b2dbaf6f908a8fad5ec75574981093b0107ee4901a61a0d6e3edcc73046eeb6110ef2b40e1c644fc6b0b9ddfcc580bbcde7f89
SSDEEP

6144:65r3lV6n42+3WSKhxD8RVo2rcaGKNqAwyotp2H:6C+3xWDY9IpKNTwyo8

Score

8^/10

bootkit persistence spyware stealer

Malware Config

Signatures

Blocklisted process makes network request 10 IoCs

Processes:

rundll32.exe

flow	pid	process
4	1412	rundll32.exe
5	1412	rundll32.exe
6	1412	rundll32.exe
7	1412	rundll32.exe
8	1412	rundll32.exe
9	1412	rundll32.exe
10	1412	rundll32.exe
11	1412	rundll32.exe
13	1412	rundll32.exe
14	1412	rundll32.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\Platform = "C:\\Windows\\SysWOW64\\rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\e0a7ad89d9c251b9db83cbd4d52768d8a69b75eeea560bba3116ecaa668bff61.dll\",Erase"	rundll32.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

rundll32.exe

description	ioc	process
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.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

Processes:

rundll32.exe

description ioc process

File opened for modification \??\PHYSICALDRIVE0 rundll32.exe

description	ioc	process
File opened for modification	\??\PHYSICALDRIVE0	rundll32.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

1412 rundll32.exe
1412 rundll32.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 1412 rundll32.exe

pid	process
1412	rundll32.exe
1412	rundll32.exe

description	pid	process
Token: SeDebugPrivilege	1412	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2292 wrote to memory of 1412	2292	rundll32.exe	rundll32.exe
PID 2292 wrote to memory of 1412	2292	rundll32.exe	rundll32.exe
PID 2292 wrote to memory of 1412	2292	rundll32.exe	rundll32.exe
PID 2292 wrote to memory of 1412	2292	rundll32.exe	rundll32.exe
PID 2292 wrote to memory of 1412	2292	rundll32.exe	rundll32.exe
PID 2292 wrote to memory of 1412	2292	rundll32.exe	rundll32.exe
PID 2292 wrote to memory of 1412	2292	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e0a7ad89d9c251b9db83cbd4d52768d8a69b75eeea560bba3116ecaa668bff61.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2292
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e0a7ad89d9c251b9db83cbd4d52768d8a69b75eeea560bba3116ecaa668bff61.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Adds Run key to start application
  - Enumerates connected drives
  - Writes to the Master Boot Record (MBR)
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1412

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1412-0-0x0000000010000000-0x000000001008E000-memory.dmp

Filesize
568KB

Download
memory/1412-2-0x0000000010000000-0x000000001008E000-memory.dmp

Filesize
568KB

Download
memory/1412-1-0x0000000010000000-0x000000001008E000-memory.dmp

Filesize
568KB

Download
memory/1412-4-0x0000000010000000-0x000000001008E000-memory.dmp

Filesize
568KB

Download
memory/1412-6-0x0000000010000000-0x000000001008E000-memory.dmp

Filesize
568KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads