fc8717fc5f49aa9725b702e62cbc89746b24f936a4c7913faff7c97f37f9f54d

General

Target

fc8717fc5f49aa9725b702e62cbc89746b24f936a4c7913faff7c97f37f9f54d.dll
Size

240KB
MD5

956065f97cdc51021e6676eba2140f84
SHA1

494acecc4ccac059a5a25faffef74fca97e17ac8
SHA256

fc8717fc5f49aa9725b702e62cbc89746b24f936a4c7913faff7c97f37f9f54d
SHA512

05dfa5bde78658787468deaf2627b96757045c0f1ebaba9f845570865e9bcf7b24fd7d9d17147b822fe107ffafaaf26f9ab82b940949b8aac7f771f7d850eeb5
SSDEEP

6144:65r3lV6n42+3WSKhxD8RVo2rcaGKNqAwyotp23:6C+3xWDY9IpKNTwyoK

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 7 IoCs

flow	pid	Process
4	1272	rundll32.exe
5	1272	rundll32.exe
6	1272	rundll32.exe
7	1272	rundll32.exe
8	1272	rundll32.exe
10	1272	rundll32.exe
11	1272	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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\Platform = "C:\\Windows\\SysWOW64\\rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\fc8717fc5f49aa9725b702e62cbc89746b24f936a4c7913faff7c97f37f9f54d.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

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

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

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1272	rundll32.exe
1272	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1272	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2068 wrote to memory of 1272	2068	rundll32.exe	28
PID 2068 wrote to memory of 1272	2068	rundll32.exe	28
PID 2068 wrote to memory of 1272	2068	rundll32.exe	28
PID 2068 wrote to memory of 1272	2068	rundll32.exe	28
PID 2068 wrote to memory of 1272	2068	rundll32.exe	28
PID 2068 wrote to memory of 1272	2068	rundll32.exe	28
PID 2068 wrote to memory of 1272	2068	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fc8717fc5f49aa9725b702e62cbc89746b24f936a4c7913faff7c97f37f9f54d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2068
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\fc8717fc5f49aa9725b702e62cbc89746b24f936a4c7913faff7c97f37f9f54d.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:1272

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/1272-0-0x0000000010000000-0x000000001008E000-memory.dmp

Filesize
568KB

Download
memory/1272-1-0x0000000010000000-0x000000001008E000-memory.dmp

Filesize
568KB

Download
memory/1272-3-0x0000000010000000-0x000000001008E000-memory.dmp

Filesize
568KB

Download
memory/1272-2-0x0000000010000000-0x000000001008E000-memory.dmp

Filesize
568KB

Download
memory/1272-6-0x0000000010000000-0x000000001008E000-memory.dmp

Filesize
568KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads