xpertrat | 031d0715451f6fda42db9d687361dbf4e516c5b78d59baea74d7c16395115a1b

Analysis

max time kernel
20s
max time network
137s
platform
windows10_x64
resource
win10v200722
submitted
13/10/2020, 06:48

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General

Target
PO_Quote#202010-13.exe
Size 71KB
Sample201013-bv87h3dw1a
SHA256 031d0715451f6fda42db9d687361dbf4e516c5b78d59baea74d7c16395115a1b
MD5 64226fc60e7f0289a08997fbbba95bfd
SHA1 05fbcb17ad8a8bdeadcf4d8b32352c32c2022473
SHA512 3b723c1e450c5f2a43b83ff0f8ca4bc41dcde773fedd030a2f71a6321ddede7dc46954e2d3a2651a0764fcd6e82ba3b66f07b1043936b68b95e61ceb9cb8b039
MD5 SHA1 SHA512

Score

10^/10

xpertrat special x evasion persistence rat trojan upx

Malware Config

Extracted

Family

xpertrat

Version

3.0.10

Botnet

special X

sandshoe.myfirewall.org:4000

Mutex

K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5

Signatures

Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 2332 created 1540	2332	WerFault.exe	85

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

XpertRAT Core Payload 3 IoCs

resource	yara_rule
behavioral2/memory/3668-13-0x0000000000401364-mapping.dmp	xpertrat
behavioral2/memory/3668-12-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat
behavioral2/memory/3668-15-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/3268-26-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral2/memory/3268-27-0x0000000000411654-mapping.dmp	MailPassView
behavioral2/memory/3268-28-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/2100-33-0x0000000000400000-0x0000000000459000-memory.dmp	WebBrowserPassView
behavioral2/memory/2100-34-0x0000000000442F04-mapping.dmp	WebBrowserPassView
behavioral2/memory/2100-35-0x0000000000400000-0x0000000000459000-memory.dmp	WebBrowserPassView

Nirsoft 11 IoCs

resource	yara_rule
behavioral2/memory/1208-25-0x0000000000400000-0x0000000000426000-memory.dmp	Nirsoft
behavioral2/memory/3268-26-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral2/memory/3268-27-0x0000000000411654-mapping.dmp	Nirsoft
behavioral2/memory/3268-28-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral2/memory/2100-33-0x0000000000400000-0x0000000000459000-memory.dmp	Nirsoft
behavioral2/memory/2100-34-0x0000000000442F04-mapping.dmp	Nirsoft
behavioral2/memory/2100-35-0x0000000000400000-0x0000000000459000-memory.dmp	Nirsoft
behavioral2/memory/3872-40-0x0000000000400000-0x0000000000416000-memory.dmp	Nirsoft
behavioral2/memory/2496-44-0x0000000000400000-0x0000000000415000-memory.dmp	Nirsoft
behavioral2/memory/2496-45-0x000000000040C2A8-mapping.dmp	Nirsoft
behavioral2/memory/2496-46-0x0000000000400000-0x0000000000415000-memory.dmp	Nirsoft

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5 = "C:\\Users\\Admin\\AppData\\Roaming\\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5.exe"	iexplore.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	iexplore.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1208-22-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/1208-24-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/1208-25-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/3872-37-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/memory/3872-39-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/memory/3872-40-0x0000000000400000-0x0000000000416000-memory.dmp	upx

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0"	PO_Quote#202010-13.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5 = "C:\\Users\\Admin\\AppData\\Roaming\\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5.exe"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2168186643-810464528-1121082739-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2168186643-810464528-1121082739-1000\Software\Microsoft\Windows\CurrentVersion\Run\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5 = "C:\\Users\\Admin\\AppData\\Roaming\\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5.exe"	iexplore.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	iexplore.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	PO_Quote#202010-13.exe

Program crash 5 IoCs

pid	pid_target	Process	procid_target
3808	1496	WerFault.exe	65
2264	2756	WerFault.exe	81
1584	1540	WerFault.exe	85
2332	1540	WerFault.exe	85
3924	1312	WerFault.exe	90

Suspicious use of NtSetInformationThreadHideFromDebugger 12 IoCs

pid	Process
1496	PO_Quote#202010-13.exe
1496	PO_Quote#202010-13.exe
1496	PO_Quote#202010-13.exe
1496	PO_Quote#202010-13.exe
1496	PO_Quote#202010-13.exe
1496	PO_Quote#202010-13.exe
1496	PO_Quote#202010-13.exe
1496	PO_Quote#202010-13.exe
1496	PO_Quote#202010-13.exe
1496	PO_Quote#202010-13.exe
1496	PO_Quote#202010-13.exe
1496	PO_Quote#202010-13.exe

Suspicious use of SetThreadContext 10 IoCs

description	pid	Process	procid_target
PID 1496 set thread context of 8	1496	PO_Quote#202010-13.exe	77
PID 8 set thread context of 3668	8	PO_Quote#202010-13.exe	80
PID 3668 set thread context of 2756	3668	iexplore.exe	81
PID 3668 set thread context of 1208	3668	iexplore.exe	83
PID 3668 set thread context of 3268	3668	iexplore.exe	84
PID 3668 set thread context of 1540	3668	iexplore.exe	85
PID 3668 set thread context of 2100	3668	iexplore.exe	88
PID 3668 set thread context of 3872	3668	iexplore.exe	89
PID 3668 set thread context of 1312	3668	iexplore.exe	90
PID 3668 set thread context of 2496	3668	iexplore.exe	92

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2520	timeout.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
1496	PO_Quote#202010-13.exe
1496	PO_Quote#202010-13.exe
1496	PO_Quote#202010-13.exe
8	PO_Quote#202010-13.exe
8	PO_Quote#202010-13.exe
3808	WerFault.exe
3808	WerFault.exe
3808	WerFault.exe
3808	WerFault.exe
3808	WerFault.exe
3808	WerFault.exe
3808	WerFault.exe
3808	WerFault.exe
3808	WerFault.exe
3808	WerFault.exe
3808	WerFault.exe
3808	WerFault.exe
3808	WerFault.exe
3808	WerFault.exe
8	PO_Quote#202010-13.exe
8	PO_Quote#202010-13.exe
1208	iexplore.exe
1208	iexplore.exe
2100	iexplore.exe
2100	iexplore.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1496	PO_Quote#202010-13.exe
Token: SeRestorePrivilege	3808	WerFault.exe
Token: SeBackupPrivilege	3808	WerFault.exe
Token: SeDebugPrivilege	3668	iexplore.exe
Token: SeDebugPrivilege	3808	WerFault.exe
Token: SeDebugPrivilege	1208	iexplore.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
8	PO_Quote#202010-13.exe
3668	iexplore.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1496 wrote to memory of 2520	1496	PO_Quote#202010-13.exe	72
PID 1496 wrote to memory of 2520	1496	PO_Quote#202010-13.exe	72
PID 1496 wrote to memory of 2520	1496	PO_Quote#202010-13.exe	72
PID 1496 wrote to memory of 8	1496	PO_Quote#202010-13.exe	77
PID 1496 wrote to memory of 8	1496	PO_Quote#202010-13.exe	77
PID 1496 wrote to memory of 8	1496	PO_Quote#202010-13.exe	77
PID 1496 wrote to memory of 8	1496	PO_Quote#202010-13.exe	77
PID 1496 wrote to memory of 8	1496	PO_Quote#202010-13.exe	77
PID 1496 wrote to memory of 8	1496	PO_Quote#202010-13.exe	77
PID 1496 wrote to memory of 8	1496	PO_Quote#202010-13.exe	77
PID 8 wrote to memory of 3668	8	PO_Quote#202010-13.exe	80
PID 8 wrote to memory of 3668	8	PO_Quote#202010-13.exe	80
PID 8 wrote to memory of 3668	8	PO_Quote#202010-13.exe	80
PID 8 wrote to memory of 3668	8	PO_Quote#202010-13.exe	80
PID 8 wrote to memory of 3668	8	PO_Quote#202010-13.exe	80
PID 8 wrote to memory of 3668	8	PO_Quote#202010-13.exe	80
PID 8 wrote to memory of 3668	8	PO_Quote#202010-13.exe	80
PID 8 wrote to memory of 3668	8	PO_Quote#202010-13.exe	80
PID 3668 wrote to memory of 2756	3668	iexplore.exe	81
PID 3668 wrote to memory of 2756	3668	iexplore.exe	81
PID 3668 wrote to memory of 2756	3668	iexplore.exe	81
PID 3668 wrote to memory of 2756	3668	iexplore.exe	81
PID 3668 wrote to memory of 2756	3668	iexplore.exe	81
PID 3668 wrote to memory of 2756	3668	iexplore.exe	81
PID 3668 wrote to memory of 2756	3668	iexplore.exe	81
PID 3668 wrote to memory of 2756	3668	iexplore.exe	81
PID 3668 wrote to memory of 1208	3668	iexplore.exe	83
PID 3668 wrote to memory of 1208	3668	iexplore.exe	83
PID 3668 wrote to memory of 1208	3668	iexplore.exe	83
PID 3668 wrote to memory of 1208	3668	iexplore.exe	83
PID 3668 wrote to memory of 1208	3668	iexplore.exe	83
PID 3668 wrote to memory of 1208	3668	iexplore.exe	83
PID 3668 wrote to memory of 1208	3668	iexplore.exe	83
PID 3668 wrote to memory of 1208	3668	iexplore.exe	83
PID 3668 wrote to memory of 3268	3668	iexplore.exe	84
PID 3668 wrote to memory of 3268	3668	iexplore.exe	84
PID 3668 wrote to memory of 3268	3668	iexplore.exe	84
PID 3668 wrote to memory of 3268	3668	iexplore.exe	84
PID 3668 wrote to memory of 3268	3668	iexplore.exe	84
PID 3668 wrote to memory of 3268	3668	iexplore.exe	84
PID 3668 wrote to memory of 3268	3668	iexplore.exe	84
PID 3668 wrote to memory of 3268	3668	iexplore.exe	84
PID 3668 wrote to memory of 3268	3668	iexplore.exe	84
PID 3668 wrote to memory of 1540	3668	iexplore.exe	85
PID 3668 wrote to memory of 1540	3668	iexplore.exe	85
PID 3668 wrote to memory of 1540	3668	iexplore.exe	85
PID 3668 wrote to memory of 1540	3668	iexplore.exe	85
PID 3668 wrote to memory of 1540	3668	iexplore.exe	85
PID 3668 wrote to memory of 1540	3668	iexplore.exe	85
PID 3668 wrote to memory of 1540	3668	iexplore.exe	85
PID 3668 wrote to memory of 1540	3668	iexplore.exe	85
PID 3668 wrote to memory of 1540	3668	iexplore.exe	85
PID 3668 wrote to memory of 2100	3668	iexplore.exe	88
PID 3668 wrote to memory of 2100	3668	iexplore.exe	88
PID 3668 wrote to memory of 2100	3668	iexplore.exe	88
PID 3668 wrote to memory of 2100	3668	iexplore.exe	88
PID 3668 wrote to memory of 2100	3668	iexplore.exe	88
PID 3668 wrote to memory of 2100	3668	iexplore.exe	88
PID 3668 wrote to memory of 2100	3668	iexplore.exe	88
PID 3668 wrote to memory of 2100	3668	iexplore.exe	88
PID 3668 wrote to memory of 2100	3668	iexplore.exe	88
PID 3668 wrote to memory of 3872	3668	iexplore.exe	89
PID 3668 wrote to memory of 3872	3668	iexplore.exe	89
PID 3668 wrote to memory of 3872	3668	iexplore.exe	89

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	PO_Quote#202010-13.exe

C:\Users\Admin\AppData\Local\Temp\PO_Quote#202010-13.exe
"C:\Users\Admin\AppData\Local\Temp\PO_Quote#202010-13.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1496
- C:\Windows\SysWOW64\timeout.exe
  timeout 4
  2⤵
  - Delays execution with timeout.exe
  PID:2520
- C:\Users\Admin\AppData\Local\Temp\PO_Quote#202010-13.exe
  "C:\Users\Admin\AppData\Local\Temp\PO_Quote#202010-13.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:8
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    C:\Users\Admin\AppData\Local\Temp\PO_Quote#202010-13.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:3668
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\ncutmmcxe0.txt"
      4⤵
      PID:2756
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2756 -s 92
        5⤵
        Program crash
        
        PID:2264
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\ncutmmcxe0.txt"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1208
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\ncutmmcxe1.txt"
      4⤵
      PID:3268
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\ncutmmcxe2.txt"
      4⤵
      PID:1540
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1540 -s 24
        5⤵
        Program crash
        
        PID:1584
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1540 -s 36
        5⤵
        Suspicious use of NtCreateProcessExOtherParentProcess
        Program crash
        
        PID:2332
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\ncutmmcxe2.txt"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:2100
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\ncutmmcxe3.txt"
      4⤵
      PID:3872
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\ncutmmcxe4.txt"
      4⤵
      PID:1312
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1312 -s 92
        5⤵
        Program crash
        
        PID:3924
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\ncutmmcxe4.txt"
      4⤵
      PID:2496
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1496 -s 1696
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3808

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/8-7-0x0000000000400000-0x000000000042C000-memory.dmp

Download

memory/8-9-0x0000000000400000-0x000000000042C000-memory.dmp

Download

memory/1208-24-0x0000000000400000-0x0000000000426000-memory.dmp

Download

memory/1208-22-0x0000000000400000-0x0000000000426000-memory.dmp

Download

memory/1208-25-0x0000000000400000-0x0000000000426000-memory.dmp

Download

memory/1496-5-0x0000000005840000-0x000000000587B000-memory.dmp

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memory/1496-3-0x0000000004E60000-0x0000000004E61000-memory.dmp

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memory/1496-0-0x00000000738E0000-0x0000000073FCE000-memory.dmp

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memory/1496-6-0x0000000005DF0000-0x0000000005DF1000-memory.dmp

Download

memory/1496-1-0x0000000000630000-0x0000000000631000-memory.dmp

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memory/1584-31-0x0000000004490000-0x0000000004491000-memory.dmp

Download

memory/2100-35-0x0000000000400000-0x0000000000459000-memory.dmp

Download

memory/2100-33-0x0000000000400000-0x0000000000459000-memory.dmp

Download

memory/2264-21-0x0000000004DD0000-0x0000000004DD1000-memory.dmp

Download

memory/2332-32-0x0000000004700000-0x0000000004701000-memory.dmp

Download

memory/2496-44-0x0000000000400000-0x0000000000415000-memory.dmp

Download

memory/2496-46-0x0000000000400000-0x0000000000415000-memory.dmp

Download

memory/3268-28-0x0000000000400000-0x000000000041B000-memory.dmp

Download

memory/3268-26-0x0000000000400000-0x000000000041B000-memory.dmp

Download

memory/3668-12-0x0000000000400000-0x0000000000443000-memory.dmp

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memory/3668-15-0x0000000000400000-0x0000000000443000-memory.dmp

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memory/3808-18-0x0000000005610000-0x0000000005611000-memory.dmp

Download

memory/3808-14-0x0000000004DD0000-0x0000000004DD1000-memory.dmp

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memory/3872-39-0x0000000000400000-0x0000000000416000-memory.dmp

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memory/3872-40-0x0000000000400000-0x0000000000416000-memory.dmp

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memory/3872-37-0x0000000000400000-0x0000000000416000-memory.dmp

Download

memory/3924-43-0x0000000004300000-0x0000000004301000-memory.dmp

Download