xpertrat | 79aa4d81cf5455a126a2b7474067f392acc392370fa6ae0a62f7e1e0271775c2

Analysis

max time kernel
55s
max time network
156s
platform
windows7_x64
resource
win7v20210408
submitted
30/06/2021, 00:03

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General

Target
dc2492ebf0fca4a52c41433c0e289750.exe
Size 887KB
Sample210630-e1t74r152j
SHA256 79aa4d81cf5455a126a2b7474067f392acc392370fa6ae0a62f7e1e0271775c2
MD5 dc2492ebf0fca4a52c41433c0e289750
SHA1 00c52f686027dc00d98b1aad58e074bcfd92f765
SHA512 4ea3f881fd61a0b34b723cf3e0f91ab88aed1561d0de1156c83c438e34d214950433fe616a7f57e50034ab72c1acdece1b734be06a4e79bcecb5e3dbcc1bb3ae
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

mertrerfeyy.duckdns.org:8494
gwtruwhgw.duckdns.org:8494
dfgrttuutii.duckdns.org:8494

Mutex

M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7

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

XpertRAT Core Payload 2 IoCs

resource	yara_rule
behavioral1/memory/1288-70-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat
behavioral1/memory/1844-74-0x0000000000401364-mapping.dmp	xpertrat

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/1652-84-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral1/memory/1652-85-0x0000000000411654-mapping.dmp	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/1616-87-0x0000000000400000-0x0000000000459000-memory.dmp	WebBrowserPassView
behavioral1/memory/1616-88-0x0000000000442F04-mapping.dmp	WebBrowserPassView

Nirsoft 6 IoCs

resource	yara_rule
behavioral1/memory/1652-84-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/1652-85-0x0000000000411654-mapping.dmp	Nirsoft
behavioral1/memory/1616-87-0x0000000000400000-0x0000000000459000-memory.dmp	Nirsoft
behavioral1/memory/1616-88-0x0000000000442F04-mapping.dmp	Nirsoft
behavioral1/memory/1484-95-0x000000000040C2A8-mapping.dmp	Nirsoft
behavioral1/memory/1484-94-0x0000000000400000-0x0000000000415000-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
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\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7 = "C:\\Users\\Admin\\AppData\\Roaming\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7.exe"	iexplore.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1544-79-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral1/memory/688-91-0x0000000000400000-0x0000000000416000-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"	dc2492ebf0fca4a52c41433c0e289750.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7 = "C:\\Users\\Admin\\AppData\\Roaming\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7.exe"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7 = "C:\\Users\\Admin\\AppData\\Roaming\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7.exe"	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"	dc2492ebf0fca4a52c41433c0e289750.exe

Suspicious use of SetThreadContext 9 IoCs

description	pid	Process	procid_target
PID 1808 set thread context of 1208	1808	dc2492ebf0fca4a52c41433c0e289750.exe	29
PID 1208 set thread context of 1288	1208	dc2492ebf0fca4a52c41433c0e289750.exe	30
PID 1208 set thread context of 1844	1208	dc2492ebf0fca4a52c41433c0e289750.exe	31
PID 1844 set thread context of 1544	1844	iexplore.exe	32
PID 1844 set thread context of 1100	1844	iexplore.exe	33
PID 1844 set thread context of 1652	1844	iexplore.exe	34
PID 1844 set thread context of 1616	1844	iexplore.exe	35
PID 1844 set thread context of 688	1844	iexplore.exe	37
PID 1844 set thread context of 1484	1844	iexplore.exe	38

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1208	dc2492ebf0fca4a52c41433c0e289750.exe
1208	dc2492ebf0fca4a52c41433c0e289750.exe
1208	dc2492ebf0fca4a52c41433c0e289750.exe
1208	dc2492ebf0fca4a52c41433c0e289750.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1844	iexplore.exe
Token: SeDebugPrivilege	1544	iexplore.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1208	dc2492ebf0fca4a52c41433c0e289750.exe
1844	iexplore.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1808 wrote to memory of 1208	1808	dc2492ebf0fca4a52c41433c0e289750.exe	29
PID 1808 wrote to memory of 1208	1808	dc2492ebf0fca4a52c41433c0e289750.exe	29
PID 1808 wrote to memory of 1208	1808	dc2492ebf0fca4a52c41433c0e289750.exe	29
PID 1808 wrote to memory of 1208	1808	dc2492ebf0fca4a52c41433c0e289750.exe	29
PID 1808 wrote to memory of 1208	1808	dc2492ebf0fca4a52c41433c0e289750.exe	29
PID 1808 wrote to memory of 1208	1808	dc2492ebf0fca4a52c41433c0e289750.exe	29
PID 1808 wrote to memory of 1208	1808	dc2492ebf0fca4a52c41433c0e289750.exe	29
PID 1808 wrote to memory of 1208	1808	dc2492ebf0fca4a52c41433c0e289750.exe	29
PID 1208 wrote to memory of 1288	1208	dc2492ebf0fca4a52c41433c0e289750.exe	30
PID 1208 wrote to memory of 1288	1208	dc2492ebf0fca4a52c41433c0e289750.exe	30
PID 1208 wrote to memory of 1288	1208	dc2492ebf0fca4a52c41433c0e289750.exe	30
PID 1208 wrote to memory of 1288	1208	dc2492ebf0fca4a52c41433c0e289750.exe	30
PID 1208 wrote to memory of 1288	1208	dc2492ebf0fca4a52c41433c0e289750.exe	30
PID 1208 wrote to memory of 1288	1208	dc2492ebf0fca4a52c41433c0e289750.exe	30
PID 1208 wrote to memory of 1288	1208	dc2492ebf0fca4a52c41433c0e289750.exe	30
PID 1208 wrote to memory of 1288	1208	dc2492ebf0fca4a52c41433c0e289750.exe	30
PID 1208 wrote to memory of 1288	1208	dc2492ebf0fca4a52c41433c0e289750.exe	30
PID 1208 wrote to memory of 1844	1208	dc2492ebf0fca4a52c41433c0e289750.exe	31
PID 1208 wrote to memory of 1844	1208	dc2492ebf0fca4a52c41433c0e289750.exe	31
PID 1208 wrote to memory of 1844	1208	dc2492ebf0fca4a52c41433c0e289750.exe	31
PID 1208 wrote to memory of 1844	1208	dc2492ebf0fca4a52c41433c0e289750.exe	31
PID 1208 wrote to memory of 1844	1208	dc2492ebf0fca4a52c41433c0e289750.exe	31
PID 1208 wrote to memory of 1844	1208	dc2492ebf0fca4a52c41433c0e289750.exe	31
PID 1208 wrote to memory of 1844	1208	dc2492ebf0fca4a52c41433c0e289750.exe	31
PID 1208 wrote to memory of 1844	1208	dc2492ebf0fca4a52c41433c0e289750.exe	31
PID 1208 wrote to memory of 1844	1208	dc2492ebf0fca4a52c41433c0e289750.exe	31
PID 1844 wrote to memory of 1544	1844	iexplore.exe	32
PID 1844 wrote to memory of 1544	1844	iexplore.exe	32
PID 1844 wrote to memory of 1544	1844	iexplore.exe	32
PID 1844 wrote to memory of 1544	1844	iexplore.exe	32
PID 1844 wrote to memory of 1544	1844	iexplore.exe	32
PID 1844 wrote to memory of 1544	1844	iexplore.exe	32
PID 1844 wrote to memory of 1544	1844	iexplore.exe	32
PID 1844 wrote to memory of 1544	1844	iexplore.exe	32
PID 1844 wrote to memory of 1544	1844	iexplore.exe	32
PID 1844 wrote to memory of 1100	1844	iexplore.exe	33
PID 1844 wrote to memory of 1100	1844	iexplore.exe	33
PID 1844 wrote to memory of 1100	1844	iexplore.exe	33
PID 1844 wrote to memory of 1100	1844	iexplore.exe	33
PID 1844 wrote to memory of 1100	1844	iexplore.exe	33
PID 1844 wrote to memory of 1100	1844	iexplore.exe	33
PID 1844 wrote to memory of 1100	1844	iexplore.exe	33
PID 1844 wrote to memory of 1100	1844	iexplore.exe	33
PID 1844 wrote to memory of 1100	1844	iexplore.exe	33
PID 1844 wrote to memory of 1100	1844	iexplore.exe	33
PID 1844 wrote to memory of 1652	1844	iexplore.exe	34
PID 1844 wrote to memory of 1652	1844	iexplore.exe	34
PID 1844 wrote to memory of 1652	1844	iexplore.exe	34
PID 1844 wrote to memory of 1652	1844	iexplore.exe	34
PID 1844 wrote to memory of 1652	1844	iexplore.exe	34
PID 1844 wrote to memory of 1652	1844	iexplore.exe	34
PID 1844 wrote to memory of 1652	1844	iexplore.exe	34
PID 1844 wrote to memory of 1652	1844	iexplore.exe	34
PID 1844 wrote to memory of 1652	1844	iexplore.exe	34
PID 1844 wrote to memory of 1652	1844	iexplore.exe	34
PID 1844 wrote to memory of 1616	1844	iexplore.exe	35
PID 1844 wrote to memory of 1616	1844	iexplore.exe	35
PID 1844 wrote to memory of 1616	1844	iexplore.exe	35
PID 1844 wrote to memory of 1616	1844	iexplore.exe	35
PID 1844 wrote to memory of 1616	1844	iexplore.exe	35
PID 1844 wrote to memory of 1616	1844	iexplore.exe	35
PID 1844 wrote to memory of 1616	1844	iexplore.exe	35
PID 1844 wrote to memory of 1616	1844	iexplore.exe	35
PID 1844 wrote to memory of 1616	1844	iexplore.exe	35

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"	dc2492ebf0fca4a52c41433c0e289750.exe

C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe
"C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1808
- C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe
  "{path}"
  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:1208
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe
    3⤵
    PID:1288
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.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:1844
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\hrlwephqf0.txt"
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1544
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\hrlwephqf1.txt"
      4⤵
      PID:1100
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\hrlwephqf1.txt"
      4⤵
      PID:1652
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\hrlwephqf2.txt"
      4⤵
      PID:1616
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\hrlwephqf3.txt"
      4⤵
      PID:688
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\hrlwephqf4.txt"
      4⤵
      PID:1484

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

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Downloads

memory/688-91-0x0000000000400000-0x0000000000416000-memory.dmp

Download

memory/1208-66-0x0000000000400000-0x000000000042C000-memory.dmp

Download

memory/1288-70-0x0000000000400000-0x0000000000443000-memory.dmp

Download

memory/1484-94-0x0000000000400000-0x0000000000415000-memory.dmp

Download

memory/1544-79-0x0000000000400000-0x0000000000426000-memory.dmp

Download

memory/1616-87-0x0000000000400000-0x0000000000459000-memory.dmp

Download

memory/1652-84-0x0000000000400000-0x000000000041B000-memory.dmp

Download

memory/1808-60-0x0000000000F70000-0x0000000000F71000-memory.dmp

Download

memory/1808-65-0x0000000000A80000-0x0000000000AAF000-memory.dmp

Download

memory/1808-64-0x0000000005BF0000-0x0000000005C6D000-memory.dmp

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memory/1808-63-0x0000000000330000-0x0000000000332000-memory.dmp

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memory/1808-62-0x0000000000C60000-0x0000000000C61000-memory.dmp

Download

memory/1844-78-0x0000000075041000-0x0000000075043000-memory.dmp

Download

memory/1844-75-0x0000000000450000-0x00000000005A3000-memory.dmp

Download