xpertrat | 6bf55bc421fadfd6e0ffc426390796b1a9dc4afd1e53ec9b36395951f0f539eb

General

Target

PO#601863490599600.exe
Size

599KB
MD5

485c081a0d8a94c07aa77a78fd1199c7
SHA1

f3b561862b76833f1f4d4fbc816634a4ef062fec
SHA256

6bf55bc421fadfd6e0ffc426390796b1a9dc4afd1e53ec9b36395951f0f539eb
SHA512

aa0008823df95aec0b38a78c48e3a2917f1d8d4fb6b5a406ddde7672bbfc7a76448e292573298a47a195db64e05e925ce0114bcacadfa6fe3035dcbedc162560

Score

10^/10

xpertrat collection evasion persistence rat trojan

Malware Config

Signatures

UAC bypass 3 TTPs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

Modify Registry
T1112
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
XpertRAT
XpertRAT is a remote access trojan with various capabilities.
rat xpertrat
Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral1/memory/1248-69-0x0000000000401364-mapping.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral1/memory/1248-69-0x0000000000401364-mapping.dmp	WebBrowserPassView

Nirsoft 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1248-69-0x0000000000401364-mapping.dmp	Nirsoft

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

iexplore.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6 = "C:\\Users\\Admin\\AppData\\Roaming\\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6.exe"	iexplore.exe

Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

PO#601863490599600.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	PO#601863490599600.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	PO#601863490599600.exe

Windows security modification 2 TTPs 1 IoCs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

PO#601863490599600.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0" PO#601863490599600.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0"	PO#601863490599600.exe

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

Processes:

iexplore.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	iexplore.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

iexplore.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Windows\CurrentVersion\Run\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6 = "C:\\Users\\Admin\\AppData\\Roaming\\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6.exe"	iexplore.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6 = "C:\\Users\\Admin\\AppData\\Roaming\\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6.exe"	iexplore.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

PO#601863490599600.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	PO#601863490599600.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

PO#601863490599600.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	PO#601863490599600.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	PO#601863490599600.exe

Suspicious use of SetThreadContext 10 IoCs

Processes:

PO#601863490599600.exePO#601863490599600.exeiexplore.exe

description	pid	process	target process
PID 1412 set thread context of 768	1412	PO#601863490599600.exe	PO#601863490599600.exe
PID 768 set thread context of 796	768	PO#601863490599600.exe	iexplore.exe
PID 768 set thread context of 1248	768	PO#601863490599600.exe	iexplore.exe
PID 1248 set thread context of 1328	1248	iexplore.exe	iexplore.exe
PID 1248 set thread context of 1168	1248	iexplore.exe	iexplore.exe
PID 1248 set thread context of 1212	1248	iexplore.exe	iexplore.exe
PID 1248 set thread context of 1596	1248	iexplore.exe	iexplore.exe
PID 1248 set thread context of 1972	1248	iexplore.exe	iexplore.exe
PID 1248 set thread context of 1156	1248	iexplore.exe	iexplore.exe
PID 1248 set thread context of 684	1248	iexplore.exe	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

PO#601863490599600.exe

pid process

768 PO#601863490599600.exe
768 PO#601863490599600.exe
768 PO#601863490599600.exe
768 PO#601863490599600.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

iexplore.exeiexplore.exe

description pid process

Token: SeDebugPrivilege 1248 iexplore.exe
Token: SeDebugPrivilege 1328 iexplore.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

PO#601863490599600.exeiexplore.exe

pid process

768 PO#601863490599600.exe
1248 iexplore.exe

pid	process
768	PO#601863490599600.exe
768	PO#601863490599600.exe
768	PO#601863490599600.exe
768	PO#601863490599600.exe

description	pid	process
Token: SeDebugPrivilege	1248	iexplore.exe
Token: SeDebugPrivilege	1328	iexplore.exe

pid	process
768	PO#601863490599600.exe
1248	iexplore.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

PO#601863490599600.exePO#601863490599600.exeiexplore.exe

description	pid	process	target process
PID 1412 wrote to memory of 768	1412	PO#601863490599600.exe	PO#601863490599600.exe
PID 1412 wrote to memory of 768	1412	PO#601863490599600.exe	PO#601863490599600.exe
PID 1412 wrote to memory of 768	1412	PO#601863490599600.exe	PO#601863490599600.exe
PID 1412 wrote to memory of 768	1412	PO#601863490599600.exe	PO#601863490599600.exe
PID 1412 wrote to memory of 768	1412	PO#601863490599600.exe	PO#601863490599600.exe
PID 1412 wrote to memory of 768	1412	PO#601863490599600.exe	PO#601863490599600.exe
PID 1412 wrote to memory of 768	1412	PO#601863490599600.exe	PO#601863490599600.exe
PID 1412 wrote to memory of 768	1412	PO#601863490599600.exe	PO#601863490599600.exe
PID 768 wrote to memory of 796	768	PO#601863490599600.exe	iexplore.exe
PID 768 wrote to memory of 796	768	PO#601863490599600.exe	iexplore.exe
PID 768 wrote to memory of 796	768	PO#601863490599600.exe	iexplore.exe
PID 768 wrote to memory of 796	768	PO#601863490599600.exe	iexplore.exe
PID 768 wrote to memory of 796	768	PO#601863490599600.exe	iexplore.exe
PID 768 wrote to memory of 796	768	PO#601863490599600.exe	iexplore.exe
PID 768 wrote to memory of 796	768	PO#601863490599600.exe	iexplore.exe
PID 768 wrote to memory of 796	768	PO#601863490599600.exe	iexplore.exe
PID 768 wrote to memory of 796	768	PO#601863490599600.exe	iexplore.exe
PID 768 wrote to memory of 1248	768	PO#601863490599600.exe	iexplore.exe
PID 768 wrote to memory of 1248	768	PO#601863490599600.exe	iexplore.exe
PID 768 wrote to memory of 1248	768	PO#601863490599600.exe	iexplore.exe
PID 768 wrote to memory of 1248	768	PO#601863490599600.exe	iexplore.exe
PID 768 wrote to memory of 1248	768	PO#601863490599600.exe	iexplore.exe
PID 768 wrote to memory of 1248	768	PO#601863490599600.exe	iexplore.exe
PID 768 wrote to memory of 1248	768	PO#601863490599600.exe	iexplore.exe
PID 768 wrote to memory of 1248	768	PO#601863490599600.exe	iexplore.exe
PID 768 wrote to memory of 1248	768	PO#601863490599600.exe	iexplore.exe
PID 1248 wrote to memory of 1328	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1328	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1328	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1328	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1328	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1328	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1328	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1328	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1328	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1168	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1168	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1168	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1168	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1168	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1168	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1168	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1168	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1168	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1168	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1212	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1212	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1212	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1212	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1212	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1212	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1212	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1212	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1212	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1212	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1596	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1596	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1596	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1596	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1596	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1596	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1596	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1596	1248	iexplore.exe	iexplore.exe
PID 1248 wrote to memory of 1596	1248	iexplore.exe	iexplore.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

Processes:

PO#601863490599600.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	PO#601863490599600.exe

C:\Users\Admin\AppData\Local\Temp\PO#601863490599600.exe
"C:\Users\Admin\AppData\Local\Temp\PO#601863490599600.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1412
- C:\Users\Admin\AppData\Local\Temp\PO#601863490599600.exe
  "C:\Users\Admin\AppData\Local\Temp\PO#601863490599600.exe"
  2⤵
  - Windows security modification
  - Checks whether UAC is enabled
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:768
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    C:\Users\Admin\AppData\Local\Temp\PO#601863490599600.exe
    3⤵
    PID:796
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    C:\Users\Admin\AppData\Local\Temp\PO#601863490599600.exe
    3⤵
    - Adds policy Run key to start application
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1248
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\zkyggjapy0.txt"
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1328
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\zkyggjapy1.txt"
      4⤵
      Accesses Microsoft Outlook accounts
      PID:1168
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\zkyggjapy2.txt"
      4⤵
      PID:1212
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\zkyggjapy3.txt"
      4⤵
      PID:1596
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\zkyggjapy4.txt"
      4⤵
      PID:1972
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\zkyggjapy4.txt"
      4⤵
      PID:1156
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\zkyggjapy4.txt"
      4⤵
      PID:684

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Bypass User Account Control

1

T1088

Defense Evasion

Bypass User Account Control

1

T1088

Disabling Security Tools

Modify Registry

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\zkyggjapy2.txt

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
C:\Users\Admin\AppData\Roaming\R0W4O1A8-P5N3-X331-D1M0-A2W4Q6D8C2R6\zkyggjapy4.txt

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/684-77-0x000000000040C2A8-mapping.dmp

Download
memory/768-66-0x0000000000080000-0x0000000000086000-memory.dmp

Filesize
24KB

Download
memory/768-67-0x0000000000080000-0x000000000008A000-memory.dmp

Filesize
40KB

Download
memory/768-61-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/768-62-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/768-63-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/768-64-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/768-65-0x00000000004010B8-mapping.dmp

Download
memory/796-68-0x0000000000401364-mapping.dmp

Download
memory/1156-76-0x000000000040C2A8-mapping.dmp

Download
memory/1168-71-0x0000000000411654-mapping.dmp

Download
memory/1212-72-0x0000000000442F04-mapping.dmp

Download
memory/1248-69-0x0000000000401364-mapping.dmp

Download
memory/1328-70-0x0000000000423BC0-mapping.dmp

Download
memory/1412-55-0x0000000000C10000-0x0000000000C11000-memory.dmp

Filesize
4KB

Download
memory/1412-60-0x00000000044A0000-0x00000000044FC000-memory.dmp

Filesize
368KB

Download
memory/1412-59-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1412-58-0x00000000050B0000-0x00000000050B1000-memory.dmp

Filesize
4KB

Download
memory/1412-57-0x0000000075141000-0x0000000075143000-memory.dmp

Filesize
8KB

Download
memory/1596-74-0x0000000000413750-mapping.dmp

Download
memory/1972-75-0x000000000040C2A8-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads