139744649f9a32633bdf75d82805a37483702380c2012b0b9750bf2b150f3f2f

General

Target

139744649f9a32633bdf75d82805a37483702380c2012b0b9750bf2b150f3f2f.dll
Size

240KB
MD5

01e8485506b49cb98fe627c60f06819d
SHA1

128293079a7573d1fab9c972bd2bc26878288c2d
SHA256

139744649f9a32633bdf75d82805a37483702380c2012b0b9750bf2b150f3f2f
SHA512

5a254ca43433537a2513b530b4f3bf142e50a7127f628da69b4f6edfdf9863412eebb811c87923479c14c282830419c6428a7ea90eab9649e263d628f10c14b2
SSDEEP

6144:65r3lV6n42+3WSKhxD8RVo2rcaGKNqAwyotp2u:6C+3xWDY9IpKNTwyoz

Score

8^/10

bootkit persistence spyware stealer

Malware Config

Signatures

Blocklisted process makes network request 9 IoCs

Processes:

rundll32.exe

flow	pid	process
3	2376	rundll32.exe
5	2376	rundll32.exe
6	2376	rundll32.exe
7	2376	rundll32.exe
8	2376	rundll32.exe
9	2376	rundll32.exe
10	2376	rundll32.exe
12	2376	rundll32.exe
13	2376	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-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\Platform = "C:\\Windows\\SysWOW64\\rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\139744649f9a32633bdf75d82805a37483702380c2012b0b9750bf2b150f3f2f.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)	\??\i:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\o:	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

2376 rundll32.exe
2376 rundll32.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 2376 rundll32.exe

pid	process
2376	rundll32.exe
2376	rundll32.exe

description	pid	process
Token: SeDebugPrivilege	2376	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1044 wrote to memory of 2376	1044	rundll32.exe	rundll32.exe
PID 1044 wrote to memory of 2376	1044	rundll32.exe	rundll32.exe
PID 1044 wrote to memory of 2376	1044	rundll32.exe	rundll32.exe
PID 1044 wrote to memory of 2376	1044	rundll32.exe	rundll32.exe
PID 1044 wrote to memory of 2376	1044	rundll32.exe	rundll32.exe
PID 1044 wrote to memory of 2376	1044	rundll32.exe	rundll32.exe
PID 1044 wrote to memory of 2376	1044	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\139744649f9a32633bdf75d82805a37483702380c2012b0b9750bf2b150f3f2f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1044

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\139744649f9a32633bdf75d82805a37483702380c2012b0b9750bf2b150f3f2f.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:2376

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Query Registry

2

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

memory/2376-0-0x0000000010000000-0x000000001008E000-memory.dmp

Filesize
568KB

Download
memory/2376-1-0x0000000010000000-0x000000001008E000-memory.dmp

Filesize
568KB

Download
memory/2376-3-0x0000000010000000-0x000000001008E000-memory.dmp

Filesize
568KB

Download
memory/2376-6-0x0000000010000000-0x000000001008E000-memory.dmp

Filesize
568KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads