d866e0351b2e42210c1db670c987fd8671699ffac1d1b6e6af8f7eebcf97dfe2

General

Target

d866e0351b2e42210c1db670c987fd8671699ffac1d1b6e6af8f7eebcf97dfe2.dll
Size

180KB
MD5

ea09d18a8cc061db85f745cae0306d0a
SHA1

979cd4d046b86733b69de4f62aaf97fa218c0c5b
SHA256

d866e0351b2e42210c1db670c987fd8671699ffac1d1b6e6af8f7eebcf97dfe2
SHA512

50d505c4a7b70dde6205390550c3b673b0a491468471685063f2f541d1e1be742c739fc4bf21a456a9ca56b1e83f79d79a6a2f8f6b8be77cfc5865b669f61e94
SSDEEP

3072:R/q9D8TGRg+2P0XSE0+7GHms91/Eg+lJKkarUTKeaVa/+UJCmwEgC5Vi8tvuGM:I8CgNPISQXsj/MlmYHOa/BJlwEgC5Vin

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/1920-2-0x0000000010000000-0x0000000010065000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1920-4-0x0000000010000000-0x0000000010065000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Blocklisted process makes network request 9 IoCs

Processes:

rundll32.exe

flow	pid	process
3	1920	rundll32.exe
5	1920	rundll32.exe
6	1920	rundll32.exe
7	1920	rundll32.exe
8	1920	rundll32.exe
9	1920	rundll32.exe
10	1920	rundll32.exe
12	1920	rundll32.exe
13	1920	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-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\Axpol = "C:\\Windows\\SysWOW64\\rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\d866e0351b2e42210c1db670c987fd8671699ffac1d1b6e6af8f7eebcf97dfe2.dll\",ZipCompress"	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)	\??\e:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\r:	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)	\??\y:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\i:	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)	\??\z:	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
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

rundll32.exe

pid process

1920 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 64 IoCs

Processes:

rundll32.exe

pid	process
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe
1920	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 1920 rundll32.exe

description	pid	process
Token: SeDebugPrivilege	1920	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1600 wrote to memory of 1920	1600	rundll32.exe	rundll32.exe
PID 1600 wrote to memory of 1920	1600	rundll32.exe	rundll32.exe
PID 1600 wrote to memory of 1920	1600	rundll32.exe	rundll32.exe
PID 1600 wrote to memory of 1920	1600	rundll32.exe	rundll32.exe
PID 1600 wrote to memory of 1920	1600	rundll32.exe	rundll32.exe
PID 1600 wrote to memory of 1920	1600	rundll32.exe	rundll32.exe
PID 1600 wrote to memory of 1920	1600	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d866e0351b2e42210c1db670c987fd8671699ffac1d1b6e6af8f7eebcf97dfe2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1600

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d866e0351b2e42210c1db670c987fd8671699ffac1d1b6e6af8f7eebcf97dfe2.dll,#1
2⤵
- Blocklisted process makes network request
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1920

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/1920-0-0x0000000010000000-0x0000000010065000-memory.dmp

Filesize
404KB

Download
memory/1920-2-0x0000000010000000-0x0000000010065000-memory.dmp

Filesize
404KB

Download
memory/1920-1-0x0000000010000000-0x0000000010065000-memory.dmp

Filesize
404KB

Download
memory/1920-4-0x0000000010000000-0x0000000010065000-memory.dmp

Filesize
404KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads