acd57ada68ded26fb9fa39db8c11371d46ec097c09434d3402fce617a8d7b14d

General

Target

acd57ada68ded26fb9fa39db8c11371d46ec097c09434d3402fce617a8d7b14d.exe
Size

406KB
MD5

4e20c8705822f8230a324f0994f55b3c
SHA1

28f4e23c555e2502b76b617718f8fd14a8674a48
SHA256

acd57ada68ded26fb9fa39db8c11371d46ec097c09434d3402fce617a8d7b14d
SHA512

2db531de827226f38885b312daa809ebcc4f78cd04c06bc2d662f938fb63ffa5665243146e9cd2fad7d3d8e5185be078e1a50dba1a9676ace0dd59388750fb08
SSDEEP

6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4t:gtRfJcNYFNm8UhlZGset

Score

8^/10

bootkit persistence spyware stealer

Malware Config

Signatures

Blocklisted process makes network request 10 IoCs

Processes:

rundll32.exe

flow	pid	process
3	2304	rundll32.exe
5	2304	rundll32.exe
6	2304	rundll32.exe
7	2304	rundll32.exe
8	2304	rundll32.exe
9	2304	rundll32.exe
10	2304	rundll32.exe
11	2304	rundll32.exe
13	2304	rundll32.exe
14	2304	rundll32.exe

Deletes itself 1 IoCs

Processes:

vybph.exe

pid process

2560 vybph.exe
Executes dropped EXE 1 IoCs

Processes:

vybph.exe

pid process

2560 vybph.exe
Loads dropped DLL 6 IoCs

Processes:

cmd.exerundll32.exe

pid process

2972 cmd.exe
2972 cmd.exe
2304 rundll32.exe
2304 rundll32.exe
2304 rundll32.exe
2304 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

pid	process
2560	vybph.exe

pid	process
2560	vybph.exe

pid	process
2972	cmd.exe
2972	cmd.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	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\Dotx = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\gesywm\\hbiub.dll\",Verify"	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)	\??\w:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\l:	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

2304 rundll32.exe
Drops file in Program Files directory 2 IoCs

Processes:

vybph.exe

description ioc process

File created \??\c:\Program Files\gesywm\hbiub.dll vybph.exe
File opened for modification \??\c:\Program Files\gesywm vybph.exe

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

description	ioc	process
File created	\??\c:\Program Files\gesywm\hbiub.dll	vybph.exe
File opened for modification	\??\c:\Program Files\gesywm	vybph.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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

3020 PING.EXE

pid	process
3020	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

rundll32.exe

pid	process
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe
2304	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 2304 rundll32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

acd57ada68ded26fb9fa39db8c11371d46ec097c09434d3402fce617a8d7b14d.exevybph.exe

pid process

2024 acd57ada68ded26fb9fa39db8c11371d46ec097c09434d3402fce617a8d7b14d.exe
2560 vybph.exe

description	pid	process
Token: SeDebugPrivilege	2304	rundll32.exe

pid	process
2024	acd57ada68ded26fb9fa39db8c11371d46ec097c09434d3402fce617a8d7b14d.exe
2560	vybph.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

acd57ada68ded26fb9fa39db8c11371d46ec097c09434d3402fce617a8d7b14d.execmd.exevybph.exe

description	pid	process	target process
PID 2024 wrote to memory of 2972	2024	acd57ada68ded26fb9fa39db8c11371d46ec097c09434d3402fce617a8d7b14d.exe	cmd.exe
PID 2024 wrote to memory of 2972	2024	acd57ada68ded26fb9fa39db8c11371d46ec097c09434d3402fce617a8d7b14d.exe	cmd.exe
PID 2024 wrote to memory of 2972	2024	acd57ada68ded26fb9fa39db8c11371d46ec097c09434d3402fce617a8d7b14d.exe	cmd.exe
PID 2024 wrote to memory of 2972	2024	acd57ada68ded26fb9fa39db8c11371d46ec097c09434d3402fce617a8d7b14d.exe	cmd.exe
PID 2972 wrote to memory of 3020	2972	cmd.exe	PING.EXE
PID 2972 wrote to memory of 3020	2972	cmd.exe	PING.EXE
PID 2972 wrote to memory of 3020	2972	cmd.exe	PING.EXE
PID 2972 wrote to memory of 3020	2972	cmd.exe	PING.EXE
PID 2972 wrote to memory of 2560	2972	cmd.exe	vybph.exe
PID 2972 wrote to memory of 2560	2972	cmd.exe	vybph.exe
PID 2972 wrote to memory of 2560	2972	cmd.exe	vybph.exe
PID 2972 wrote to memory of 2560	2972	cmd.exe	vybph.exe
PID 2560 wrote to memory of 2304	2560	vybph.exe	rundll32.exe
PID 2560 wrote to memory of 2304	2560	vybph.exe	rundll32.exe
PID 2560 wrote to memory of 2304	2560	vybph.exe	rundll32.exe
PID 2560 wrote to memory of 2304	2560	vybph.exe	rundll32.exe
PID 2560 wrote to memory of 2304	2560	vybph.exe	rundll32.exe
PID 2560 wrote to memory of 2304	2560	vybph.exe	rundll32.exe
PID 2560 wrote to memory of 2304	2560	vybph.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\acd57ada68ded26fb9fa39db8c11371d46ec097c09434d3402fce617a8d7b14d.exe
"C:\Users\Admin\AppData\Local\Temp\acd57ada68ded26fb9fa39db8c11371d46ec097c09434d3402fce617a8d7b14d.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2024

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\vybph.exe "C:\Users\Admin\AppData\Local\Temp\acd57ada68ded26fb9fa39db8c11371d46ec097c09434d3402fce617a8d7b14d.exe"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2972

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 2
3⤵
- Runs ping.exe
PID:3020

C:\Users\Admin\AppData\Local\Temp\vybph.exe
C:\Users\Admin\AppData\Local\Temp\\vybph.exe "C:\Users\Admin\AppData\Local\Temp\acd57ada68ded26fb9fa39db8c11371d46ec097c09434d3402fce617a8d7b14d.exe"
3⤵
- Deletes itself
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2560

\??\c:\windows\SysWOW64\rundll32.exe
c:\windows\system32\rundll32.exe "c:\Program Files\gesywm\hbiub.dll",Verify C:\Users\Admin\AppData\Local\Temp\vybph.exe
4⤵
- Blocklisted process makes network request
- Loads dropped DLL
- 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:2304

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

Remote System Discovery

1

T1018

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\??\c:\Program Files\gesywm\hbiub.dll
Filesize
228KB

MD5
92fee2ae79687a2514ae58ce8c5f50db

SHA1
75fbd9cc97c29bf8679ac2fe819888547990bffc

SHA256
384879a0e8768810e0c65bb7cb508dbba885afe856ced8334ef657a2802591ef

SHA512
2a6f50b13f360426623a6319265f0680d353ffcc2e004cfb77e0e5080c1becbf4a06aaea2cd227202d2457098e6cf89cf46f73f9c8a5ff110429c3395477519c

Download Submit
\Users\Admin\AppData\Local\Temp\vybph.exe
Filesize
407KB

MD5
9107dfa5ee8633374d564dbf5e059d6d

SHA1
eb2f7f6a3ae047e7e45941e293563b551fd75828

SHA256
d021948094414ff1e4590eb0881818d967e453fa35de3e8dd187a69100da216b

SHA512
88d552018c506a9ced8e839d48ddc810c8e1170c1d25c0975fd6aeabd6c6b6ff1a0a865c4bf02a8daa191d2ea0df125eaa8e06db1e65118bfd4ceab2e6f92f05

Download Submit
memory/2024-0-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2024-2-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2304-15-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/2304-16-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/2304-18-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/2560-7-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2560-9-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads