a0c0c47393f3ff83fa0aff1c6b2066f064ffa74797592354bae7b4168e2b39f2

General

Target

a0c0c47393f3ff83fa0aff1c6b2066f064ffa74797592354bae7b4168e2b39f2.dll
Size

184KB
MD5

9e16daf81fa852538a26ffb4b10442c6
SHA1

f48a6c56ad470ce7056341af9b4c66c164d0c60f
SHA256

a0c0c47393f3ff83fa0aff1c6b2066f064ffa74797592354bae7b4168e2b39f2
SHA512

2f1973de33632516af186eb9d316f4651cdd14b21995342168f03d6367edfc2b80cb384e1b2b7a576aa1ff8a4cdb51bea4827e35a3d424bf8fcb690ab2127934
SSDEEP

3072:YXFF+uZRl3zKTG1PZvbnkE8OCtR6kX4nxtR8RtzR6Vj5FwwTlZ:Y1FJZDKG1P1zkEDER6kXAtqEVjc4P

Score

9^/10

bootkit persistence spyware stealer

Malware Config

Signatures

Detects executables containing base64 encoded User Agent 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2972-4-0x0000000010000000-0x0000000010074000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2972-7-0x0000000010000000-0x0000000010074000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Blocklisted process makes network request 7 IoCs

Processes:

rundll32.exe

flow pid process

3 2972 rundll32.exe
5 2972 rundll32.exe
6 2972 rundll32.exe
7 2972 rundll32.exe
8 2972 rundll32.exe
9 2972 rundll32.exe
11 2972 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

flow	pid	process
3	2972	rundll32.exe
5	2972	rundll32.exe
6	2972	rundll32.exe
7	2972	rundll32.exe
8	2972	rundll32.exe
9	2972	rundll32.exe
11	2972	rundll32.exe

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\flate = "C:\\Windows\\SysWOW64\\rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\a0c0c47393f3ff83fa0aff1c6b2066f064ffa74797592354bae7b4168e2b39f2.dll\",inflate"	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)	\??\b:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\x:	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)	\??\t:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\u:	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

2972 rundll32.exe
2972 rundll32.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 2972 rundll32.exe

pid	process
2972	rundll32.exe
2972	rundll32.exe

description	pid	process
Token: SeDebugPrivilege	2972	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2548 wrote to memory of 2972	2548	rundll32.exe	rundll32.exe
PID 2548 wrote to memory of 2972	2548	rundll32.exe	rundll32.exe
PID 2548 wrote to memory of 2972	2548	rundll32.exe	rundll32.exe
PID 2548 wrote to memory of 2972	2548	rundll32.exe	rundll32.exe
PID 2548 wrote to memory of 2972	2548	rundll32.exe	rundll32.exe
PID 2548 wrote to memory of 2972	2548	rundll32.exe	rundll32.exe
PID 2548 wrote to memory of 2972	2548	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a0c0c47393f3ff83fa0aff1c6b2066f064ffa74797592354bae7b4168e2b39f2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2548

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a0c0c47393f3ff83fa0aff1c6b2066f064ffa74797592354bae7b4168e2b39f2.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:2972

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/2972-0-0x0000000010000000-0x0000000010074000-memory.dmp

Filesize
464KB

Download
memory/2972-1-0x0000000010000000-0x0000000010074000-memory.dmp

Filesize
464KB

Download
memory/2972-2-0x0000000010000000-0x0000000010074000-memory.dmp

Filesize
464KB

Download
memory/2972-4-0x0000000010000000-0x0000000010074000-memory.dmp

Filesize
464KB

Download
memory/2972-3-0x0000000010000000-0x0000000010074000-memory.dmp

Filesize
464KB

Download
memory/2972-7-0x0000000010000000-0x0000000010074000-memory.dmp

Filesize
464KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads