8d7fce0d0101f11f080a791cc70244c10ef893e64676cfcb02a8148798d032d2

General

Target

8d7fce0d0101f11f080a791cc70244c10ef893e64676cfcb02a8148798d032d2.exe
Size

404KB
MD5

cd46e532a6bd92adb4defd18ae275da6
SHA1

4d6da5ae5937fb1545f99f7f96fe3d975b078807
SHA256

8d7fce0d0101f11f080a791cc70244c10ef893e64676cfcb02a8148798d032d2
SHA512

7b1a0b8b5778e7000d677f0943964463aaa0a05e42511040d260cdee39675e3ce68e0a0b6f917312e77e54c8dc1ad4be0328b62991a91f02d669c607d3b6abad
SSDEEP

6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4:gtRfJcNYFNm8UhlZGse

Score

8^/10

bootkit persistence spyware stealer

Malware Config

Signatures

Blocklisted process makes network request 10 IoCs

Processes:

rundll32.exe

flow	pid	process
3	2096	rundll32.exe
7	2096	rundll32.exe
8	2096	rundll32.exe
9	2096	rundll32.exe
10	2096	rundll32.exe
13	2096	rundll32.exe
14	2096	rundll32.exe
15	2096	rundll32.exe
17	2096	rundll32.exe
18	2096	rundll32.exe

Deletes itself 1 IoCs

Processes:

rvrpy.exe

pid process

2172 rvrpy.exe
Executes dropped EXE 1 IoCs

Processes:

rvrpy.exe

pid process

2172 rvrpy.exe
Loads dropped DLL 6 IoCs

Processes:

cmd.exerundll32.exe

pid process

1960 cmd.exe
1960 cmd.exe
2096 rundll32.exe
2096 rundll32.exe
2096 rundll32.exe
2096 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
2172	rvrpy.exe

pid	process
2172	rvrpy.exe

pid	process
1960	cmd.exe
1960	cmd.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	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-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\Dotx = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\dzqkw\\grdpe.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)	\??\g:	rundll32.exe
File opened (read-only)	\??\j:	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)	\??\u:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\v:	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

2096 rundll32.exe
Drops file in Program Files directory 2 IoCs

Processes:

rvrpy.exe

description ioc process

File opened for modification \??\c:\Program Files\dzqkw rvrpy.exe
File created \??\c:\Program Files\dzqkw\grdpe.dll rvrpy.exe

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

description	ioc	process
File opened for modification	\??\c:\Program Files\dzqkw	rvrpy.exe
File created	\??\c:\Program Files\dzqkw\grdpe.dll	rvrpy.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

3044 PING.EXE

pid	process
3044	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

rundll32.exe

pid	process
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe
2096	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 2096 rundll32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

8d7fce0d0101f11f080a791cc70244c10ef893e64676cfcb02a8148798d032d2.exervrpy.exe

pid process

2960 8d7fce0d0101f11f080a791cc70244c10ef893e64676cfcb02a8148798d032d2.exe
2172 rvrpy.exe

description	pid	process
Token: SeDebugPrivilege	2096	rundll32.exe

pid	process
2960	8d7fce0d0101f11f080a791cc70244c10ef893e64676cfcb02a8148798d032d2.exe
2172	rvrpy.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

8d7fce0d0101f11f080a791cc70244c10ef893e64676cfcb02a8148798d032d2.execmd.exervrpy.exe

description	pid	process	target process
PID 2960 wrote to memory of 1960	2960	8d7fce0d0101f11f080a791cc70244c10ef893e64676cfcb02a8148798d032d2.exe	cmd.exe
PID 2960 wrote to memory of 1960	2960	8d7fce0d0101f11f080a791cc70244c10ef893e64676cfcb02a8148798d032d2.exe	cmd.exe
PID 2960 wrote to memory of 1960	2960	8d7fce0d0101f11f080a791cc70244c10ef893e64676cfcb02a8148798d032d2.exe	cmd.exe
PID 2960 wrote to memory of 1960	2960	8d7fce0d0101f11f080a791cc70244c10ef893e64676cfcb02a8148798d032d2.exe	cmd.exe
PID 1960 wrote to memory of 3044	1960	cmd.exe	PING.EXE
PID 1960 wrote to memory of 3044	1960	cmd.exe	PING.EXE
PID 1960 wrote to memory of 3044	1960	cmd.exe	PING.EXE
PID 1960 wrote to memory of 3044	1960	cmd.exe	PING.EXE
PID 1960 wrote to memory of 2172	1960	cmd.exe	rvrpy.exe
PID 1960 wrote to memory of 2172	1960	cmd.exe	rvrpy.exe
PID 1960 wrote to memory of 2172	1960	cmd.exe	rvrpy.exe
PID 1960 wrote to memory of 2172	1960	cmd.exe	rvrpy.exe
PID 2172 wrote to memory of 2096	2172	rvrpy.exe	rundll32.exe
PID 2172 wrote to memory of 2096	2172	rvrpy.exe	rundll32.exe
PID 2172 wrote to memory of 2096	2172	rvrpy.exe	rundll32.exe
PID 2172 wrote to memory of 2096	2172	rvrpy.exe	rundll32.exe
PID 2172 wrote to memory of 2096	2172	rvrpy.exe	rundll32.exe
PID 2172 wrote to memory of 2096	2172	rvrpy.exe	rundll32.exe
PID 2172 wrote to memory of 2096	2172	rvrpy.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\8d7fce0d0101f11f080a791cc70244c10ef893e64676cfcb02a8148798d032d2.exe
"C:\Users\Admin\AppData\Local\Temp\8d7fce0d0101f11f080a791cc70244c10ef893e64676cfcb02a8148798d032d2.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2960

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\rvrpy.exe "C:\Users\Admin\AppData\Local\Temp\8d7fce0d0101f11f080a791cc70244c10ef893e64676cfcb02a8148798d032d2.exe"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1960

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 2
3⤵
- Runs ping.exe
PID:3044

C:\Users\Admin\AppData\Local\Temp\rvrpy.exe
C:\Users\Admin\AppData\Local\Temp\\rvrpy.exe "C:\Users\Admin\AppData\Local\Temp\8d7fce0d0101f11f080a791cc70244c10ef893e64676cfcb02a8148798d032d2.exe"
3⤵
- Deletes itself
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2172

\??\c:\windows\SysWOW64\rundll32.exe
c:\windows\system32\rundll32.exe "c:\Program Files\dzqkw\grdpe.dll",Verify C:\Users\Admin\AppData\Local\Temp\rvrpy.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:2096

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

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Downloads

\??\c:\Program Files\dzqkw\grdpe.dll
Filesize
228KB

MD5
e497a98c7a181df117dc10232e50f984

SHA1
a66b3579e65ada5a53090f9dabc6f904753727e9

SHA256
de5fcdae484ca4d6b041a479a5168484a9c38c8ce1aff73389bc26656357473c

SHA512
d19c7d57fcd02fdecbadd9a8cd9ea80df9ed84b1af37ef02cdf7aac7b7f1798c07f8c0992ae1b79915df9ae468235be567e05765b169f09575d58c8b6189babe

Download Submit
\Users\Admin\AppData\Local\Temp\rvrpy.exe
Filesize
405KB

MD5
c5b2e13631890a1a76644f6ca5b0cbe8

SHA1
bf1563aba8baf8153d90d65d7ab958dc99005383

SHA256
fb73780566e358b003a5c059fb2aa018c24dcb92b9d16dbb450315a578c65dd9

SHA512
7fedc801521bd3e8bb9d72a269ff5ea72dae2634226579ba24a592139ad9a5b96888a8b5862d25de4690ecfbbf427a9ac7dcb9794d3c3c41c37dd745470069e0

Download Submit
memory/1960-5-0x0000000000420000-0x0000000000484000-memory.dmp

Filesize
400KB

Download
memory/2096-17-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/2096-16-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/2096-18-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/2096-20-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/2172-8-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2172-10-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2960-0-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2960-2-0x0000000000400000-0x0000000000464000-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