a64f14f7064ea3fdcca18b6c65520fb20d2b9649f539c6399f5d87e030b72238

General

Target

6205258238262bc732ae664e9aee3bd0N.exe
Size

120KB
MD5

6205258238262bc732ae664e9aee3bd0
SHA1

5dea4b03e387dc13f168cd98e866afa8c58075ff
SHA256

a64f14f7064ea3fdcca18b6c65520fb20d2b9649f539c6399f5d87e030b72238
SHA512

0f689ae42137d7a1e1ede059bd96b4257d3c1d8979eee1b8ce9205ba973741a668bf56a9dd91a408b226dd4d56c51876f39c350468da40da2d63d15a9e6deaa5
SSDEEP

1536:aJUGCqveEeXdTeG4wu6oQuwEhQQWKXJR721rSTdk/cpAKdlaKrorkgA55i:aHFveEyTAK7VKXXS1GT7AKzaKrtP55i

Score

8^/10

aspackv2 bootkit discovery persistence spyware stealer

Malware Config

Signatures

Blocklisted process makes network request 9 IoCs

flow	pid	Process
3	2992	rundll32.exe
5	2992	rundll32.exe
6	2992	rundll32.exe
7	2992	rundll32.exe
8	2992	rundll32.exe
9	2992	rundll32.exe
10	2992	rundll32.exe
11	2992	rundll32.exe
13	2992	rundll32.exe

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral1/files/0x000900000001722b-8.dat	aspack_v212_v242

Deletes itself 1 IoCs

pid	Process
1856	stmtf.exe

Executes dropped EXE 1 IoCs

pid	Process
1856	stmtf.exe

Loads dropped DLL 4 IoCs

pid	Process
2992	rundll32.exe
2992	rundll32.exe
2992	rundll32.exe
2992	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-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\lvkuw\\auqzedn.dll\",AbortProc"	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)	\??\i:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\p:	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)	\??\z:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\r:	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

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6205258238262bc732ae664e9aee3bd0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	stmtf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1760	cmd.exe
2360	PING.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 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

pid	Process
2360	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2992	rundll32.exe
2992	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2992	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2564	6205258238262bc732ae664e9aee3bd0N.exe
1856	stmtf.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2564 wrote to memory of 1760	2564	6205258238262bc732ae664e9aee3bd0N.exe	29
PID 2564 wrote to memory of 1760	2564	6205258238262bc732ae664e9aee3bd0N.exe	29
PID 2564 wrote to memory of 1760	2564	6205258238262bc732ae664e9aee3bd0N.exe	29
PID 2564 wrote to memory of 1760	2564	6205258238262bc732ae664e9aee3bd0N.exe	29
PID 1760 wrote to memory of 2360	1760	cmd.exe	31
PID 1760 wrote to memory of 2360	1760	cmd.exe	31
PID 1760 wrote to memory of 2360	1760	cmd.exe	31
PID 1760 wrote to memory of 2360	1760	cmd.exe	31
PID 1760 wrote to memory of 1856	1760	cmd.exe	32
PID 1760 wrote to memory of 1856	1760	cmd.exe	32
PID 1760 wrote to memory of 1856	1760	cmd.exe	32
PID 1760 wrote to memory of 1856	1760	cmd.exe	32
PID 1856 wrote to memory of 2992	1856	stmtf.exe	33
PID 1856 wrote to memory of 2992	1856	stmtf.exe	33
PID 1856 wrote to memory of 2992	1856	stmtf.exe	33
PID 1856 wrote to memory of 2992	1856	stmtf.exe	33
PID 1856 wrote to memory of 2992	1856	stmtf.exe	33
PID 1856 wrote to memory of 2992	1856	stmtf.exe	33
PID 1856 wrote to memory of 2992	1856	stmtf.exe	33

C:\Users\Admin\AppData\Local\Temp\6205258238262bc732ae664e9aee3bd0N.exe
"C:\Users\Admin\AppData\Local\Temp\6205258238262bc732ae664e9aee3bd0N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2564
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\stmtf.exe "C:\Users\Admin\AppData\Local\Temp\6205258238262bc732ae664e9aee3bd0N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1760
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2360
- - \??\c:\stmtf.exe
    c:\stmtf.exe "C:\Users\Admin\AppData\Local\Temp\6205258238262bc732ae664e9aee3bd0N.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1856
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\lvkuw\auqzedn.dll",AbortProc c:\stmtf.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)
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2992

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

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

\??\c:\lvkuw\auqzedn.dll

Filesize
87KB

MD5
a2c2137ff7abf6be6bcae4252c394a69

SHA1
07b402104df563f9486c2eef975fee70f65a5145

SHA256
37ab4b7ee8f6b61c3854af4ed4676fd0d69f0260fb1296ad75e57aa08e1eeb03

SHA512
5d05ed7c55bee8f41502acaea3d41fcf4421ad641d43f0b97b4cdc8fe584983da7712c561a53b708e88391df7929914746115700ae733155418693bcec6989a9

Download Submit
\??\c:\stmtf.exe

Filesize
120KB

MD5
2f7961e9c8d8d72e7e529dc5bd0a63d6

SHA1
f9a46bbc2bd2359e7148b13372444fa953fad466

SHA256
6872a404ca361ab292c37856c45f4531c619a52d89239088f7b1449e9bf7694d

SHA512
f801e695d5b416bd54a668e667901cc6dd7f923b1a47840a0b0aca69391eee9457dfafc5329d916f7e0cc87e2984d68d594fc36df312df3e6ce95bde31e26b33

Download Submit
memory/1760-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1856-7-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2564-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2564-2-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2992-15-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/2992-14-0x0000000010033000-0x0000000010034000-memory.dmp

Filesize
4KB

Download
memory/2992-13-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/2992-17-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/2992-16-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/2992-18-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/2992-19-0x0000000010033000-0x0000000010034000-memory.dmp

Filesize
4KB

Download
memory/2992-23-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/2992-24-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/2992-25-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download
memory/2992-29-0x0000000010000000-0x0000000010036000-memory.dmp

Filesize
216KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads