xpertrat | ff9d837e464eb07ad603c0b2ac0a35029117123c31570baeb61fca9a0242b493

Analysis

max time kernel
130s
max time network
130s
platform
windows10_x64
resource
win10v200722
submitted
12/10/2020, 09:46

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General

Target
RFQ_PO_7645321875.exe
Size 261KB
Sample201012-rcpgfvgr9e
SHA256 ff9d837e464eb07ad603c0b2ac0a35029117123c31570baeb61fca9a0242b493
MD5 870fdad769262715ea10aed9c9f724f4
SHA1 ddb6654c1a408fb8e55b3b1d8506e7d1e4d54d6d
SHA512 a0227797adcceb27e12c7ef49b9eaa4a9814d85136e35a162b589dd3eccf8339b62cbec3f924fcf0cf317a55d068d393d66363c20cd0fcac86c3c3ad43e9f63d
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

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/3604-13-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat
behavioral2/memory/3604-14-0x0000000000401364-mapping.dmp	xpertrat
behavioral2/memory/3604-15-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/2160-24-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral2/memory/2160-25-0x0000000000411654-mapping.dmp	MailPassView
behavioral2/memory/2160-26-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/1368-27-0x0000000000400000-0x0000000000459000-memory.dmp	WebBrowserPassView
behavioral2/memory/1368-28-0x0000000000442F04-mapping.dmp	WebBrowserPassView
behavioral2/memory/1368-29-0x0000000000400000-0x0000000000459000-memory.dmp	WebBrowserPassView

Nirsoft 11 IoCs

resource	yara_rule
behavioral2/memory/932-23-0x0000000000400000-0x0000000000426000-memory.dmp	Nirsoft
behavioral2/memory/2160-24-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral2/memory/2160-25-0x0000000000411654-mapping.dmp	Nirsoft
behavioral2/memory/2160-26-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral2/memory/1368-27-0x0000000000400000-0x0000000000459000-memory.dmp	Nirsoft
behavioral2/memory/1368-28-0x0000000000442F04-mapping.dmp	Nirsoft
behavioral2/memory/1368-29-0x0000000000400000-0x0000000000459000-memory.dmp	Nirsoft
behavioral2/memory/1216-34-0x0000000000400000-0x0000000000416000-memory.dmp	Nirsoft
behavioral2/memory/2068-35-0x0000000000400000-0x0000000000415000-memory.dmp	Nirsoft
behavioral2/memory/2068-36-0x000000000040C2A8-mapping.dmp	Nirsoft
behavioral2/memory/2068-37-0x0000000000400000-0x0000000000415000-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\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5 = "C:\\Users\\Admin\\AppData\\Roaming\\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5.exe"	iexplore.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/932-20-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/932-22-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/932-23-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/1216-31-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/memory/1216-33-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/memory/1216-34-0x0000000000400000-0x0000000000416000-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"	RFQ_PO_7645321875.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\USER\S-1-5-21-1400429095-533421673-2598934218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\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
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

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"	RFQ_PO_7645321875.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 12 IoCs

pid	Process
3952	RFQ_PO_7645321875.exe
3952	RFQ_PO_7645321875.exe
3952	RFQ_PO_7645321875.exe
3952	RFQ_PO_7645321875.exe
3952	RFQ_PO_7645321875.exe
3952	RFQ_PO_7645321875.exe
3952	RFQ_PO_7645321875.exe
3952	RFQ_PO_7645321875.exe
3952	RFQ_PO_7645321875.exe
3952	RFQ_PO_7645321875.exe
3952	RFQ_PO_7645321875.exe
3952	RFQ_PO_7645321875.exe

Suspicious use of SetThreadContext 7 IoCs

description	pid	Process	procid_target
PID 3952 set thread context of 3404	3952	RFQ_PO_7645321875.exe	77
PID 3404 set thread context of 3604	3404	RFQ_PO_7645321875.exe	80
PID 3604 set thread context of 932	3604	iexplore.exe	81
PID 3604 set thread context of 2160	3604	iexplore.exe	82
PID 3604 set thread context of 1368	3604	iexplore.exe	83
PID 3604 set thread context of 1216	3604	iexplore.exe	84
PID 3604 set thread context of 2068	3604	iexplore.exe	85

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3688	3952	WerFault.exe	65

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3056	timeout.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
3952	RFQ_PO_7645321875.exe
3952	RFQ_PO_7645321875.exe
3952	RFQ_PO_7645321875.exe
3404	RFQ_PO_7645321875.exe
3404	RFQ_PO_7645321875.exe
3688	WerFault.exe
3688	WerFault.exe
3688	WerFault.exe
3688	WerFault.exe
3688	WerFault.exe
3688	WerFault.exe
3688	WerFault.exe
3688	WerFault.exe
3688	WerFault.exe
3688	WerFault.exe
3688	WerFault.exe
3688	WerFault.exe
3688	WerFault.exe
932	iexplore.exe
932	iexplore.exe
3404	RFQ_PO_7645321875.exe
3404	RFQ_PO_7645321875.exe
1368	iexplore.exe
1368	iexplore.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3952	RFQ_PO_7645321875.exe
Token: SeDebugPrivilege	3604	iexplore.exe
Token: SeRestorePrivilege	3688	WerFault.exe
Token: SeBackupPrivilege	3688	WerFault.exe
Token: SeDebugPrivilege	3688	WerFault.exe
Token: SeDebugPrivilege	932	iexplore.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3404	RFQ_PO_7645321875.exe
3604	iexplore.exe

Suspicious use of WriteProcessMemory 61 IoCs

description	pid	Process	procid_target
PID 3952 wrote to memory of 3056	3952	RFQ_PO_7645321875.exe	72
PID 3952 wrote to memory of 3056	3952	RFQ_PO_7645321875.exe	72
PID 3952 wrote to memory of 3056	3952	RFQ_PO_7645321875.exe	72
PID 3952 wrote to memory of 3404	3952	RFQ_PO_7645321875.exe	77
PID 3952 wrote to memory of 3404	3952	RFQ_PO_7645321875.exe	77
PID 3952 wrote to memory of 3404	3952	RFQ_PO_7645321875.exe	77
PID 3952 wrote to memory of 3404	3952	RFQ_PO_7645321875.exe	77
PID 3952 wrote to memory of 3404	3952	RFQ_PO_7645321875.exe	77
PID 3952 wrote to memory of 3404	3952	RFQ_PO_7645321875.exe	77
PID 3952 wrote to memory of 3404	3952	RFQ_PO_7645321875.exe	77
PID 3404 wrote to memory of 3604	3404	RFQ_PO_7645321875.exe	80
PID 3404 wrote to memory of 3604	3404	RFQ_PO_7645321875.exe	80
PID 3404 wrote to memory of 3604	3404	RFQ_PO_7645321875.exe	80
PID 3404 wrote to memory of 3604	3404	RFQ_PO_7645321875.exe	80
PID 3404 wrote to memory of 3604	3404	RFQ_PO_7645321875.exe	80
PID 3404 wrote to memory of 3604	3404	RFQ_PO_7645321875.exe	80
PID 3404 wrote to memory of 3604	3404	RFQ_PO_7645321875.exe	80
PID 3404 wrote to memory of 3604	3404	RFQ_PO_7645321875.exe	80
PID 3604 wrote to memory of 932	3604	iexplore.exe	81
PID 3604 wrote to memory of 932	3604	iexplore.exe	81
PID 3604 wrote to memory of 932	3604	iexplore.exe	81
PID 3604 wrote to memory of 932	3604	iexplore.exe	81
PID 3604 wrote to memory of 932	3604	iexplore.exe	81
PID 3604 wrote to memory of 932	3604	iexplore.exe	81
PID 3604 wrote to memory of 932	3604	iexplore.exe	81
PID 3604 wrote to memory of 932	3604	iexplore.exe	81
PID 3604 wrote to memory of 2160	3604	iexplore.exe	82
PID 3604 wrote to memory of 2160	3604	iexplore.exe	82
PID 3604 wrote to memory of 2160	3604	iexplore.exe	82
PID 3604 wrote to memory of 2160	3604	iexplore.exe	82
PID 3604 wrote to memory of 2160	3604	iexplore.exe	82
PID 3604 wrote to memory of 2160	3604	iexplore.exe	82
PID 3604 wrote to memory of 2160	3604	iexplore.exe	82
PID 3604 wrote to memory of 2160	3604	iexplore.exe	82
PID 3604 wrote to memory of 2160	3604	iexplore.exe	82
PID 3604 wrote to memory of 1368	3604	iexplore.exe	83
PID 3604 wrote to memory of 1368	3604	iexplore.exe	83
PID 3604 wrote to memory of 1368	3604	iexplore.exe	83
PID 3604 wrote to memory of 1368	3604	iexplore.exe	83
PID 3604 wrote to memory of 1368	3604	iexplore.exe	83
PID 3604 wrote to memory of 1368	3604	iexplore.exe	83
PID 3604 wrote to memory of 1368	3604	iexplore.exe	83
PID 3604 wrote to memory of 1368	3604	iexplore.exe	83
PID 3604 wrote to memory of 1368	3604	iexplore.exe	83
PID 3604 wrote to memory of 1216	3604	iexplore.exe	84
PID 3604 wrote to memory of 1216	3604	iexplore.exe	84
PID 3604 wrote to memory of 1216	3604	iexplore.exe	84
PID 3604 wrote to memory of 1216	3604	iexplore.exe	84
PID 3604 wrote to memory of 1216	3604	iexplore.exe	84
PID 3604 wrote to memory of 1216	3604	iexplore.exe	84
PID 3604 wrote to memory of 1216	3604	iexplore.exe	84
PID 3604 wrote to memory of 1216	3604	iexplore.exe	84
PID 3604 wrote to memory of 2068	3604	iexplore.exe	85
PID 3604 wrote to memory of 2068	3604	iexplore.exe	85
PID 3604 wrote to memory of 2068	3604	iexplore.exe	85
PID 3604 wrote to memory of 2068	3604	iexplore.exe	85
PID 3604 wrote to memory of 2068	3604	iexplore.exe	85
PID 3604 wrote to memory of 2068	3604	iexplore.exe	85
PID 3604 wrote to memory of 2068	3604	iexplore.exe	85
PID 3604 wrote to memory of 2068	3604	iexplore.exe	85
PID 3604 wrote to memory of 2068	3604	iexplore.exe	85

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"	RFQ_PO_7645321875.exe

C:\Users\Admin\AppData\Local\Temp\RFQ_PO_7645321875.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ_PO_7645321875.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3952
- C:\Windows\SysWOW64\timeout.exe
  timeout 4
  2⤵
  - Delays execution with timeout.exe
  PID:3056
- C:\Users\Admin\AppData\Local\Temp\RFQ_PO_7645321875.exe
  "C:\Users\Admin\AppData\Local\Temp\RFQ_PO_7645321875.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:3404
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    C:\Users\Admin\AppData\Local\Temp\RFQ_PO_7645321875.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:3604
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\oovmyeysz0.txt"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:932
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\oovmyeysz1.txt"
      4⤵
      PID:2160
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\oovmyeysz2.txt"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:1368
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\oovmyeysz3.txt"
      4⤵
      PID:1216
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\K8Q3I007-I4H2-R2V0-W0G8-T1Q3K5W771L5\oovmyeysz4.txt"
      4⤵
      PID:2068
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3952 -s 1840
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3688

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/932-20-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/932-23-0x0000000000400000-0x0000000000426000-memory.dmp

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memory/932-22-0x0000000000400000-0x0000000000426000-memory.dmp

Download

memory/1216-34-0x0000000000400000-0x0000000000416000-memory.dmp

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memory/1216-33-0x0000000000400000-0x0000000000416000-memory.dmp

Download

memory/1216-31-0x0000000000400000-0x0000000000416000-memory.dmp

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memory/1368-29-0x0000000000400000-0x0000000000459000-memory.dmp

Download

memory/1368-27-0x0000000000400000-0x0000000000459000-memory.dmp

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memory/2068-37-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/2068-35-0x0000000000400000-0x0000000000415000-memory.dmp

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memory/2160-24-0x0000000000400000-0x000000000041B000-memory.dmp

Download

memory/2160-26-0x0000000000400000-0x000000000041B000-memory.dmp

Download

memory/3404-8-0x0000000000400000-0x000000000042C000-memory.dmp

Download

memory/3404-10-0x0000000000400000-0x000000000042C000-memory.dmp

Download

memory/3604-13-0x0000000000400000-0x0000000000443000-memory.dmp

Download

memory/3604-15-0x0000000000400000-0x0000000000443000-memory.dmp

Download

memory/3688-18-0x0000000005120000-0x0000000005121000-memory.dmp

Download

memory/3688-19-0x0000000005760000-0x0000000005761000-memory.dmp

Download

memory/3952-5-0x0000000007D00000-0x0000000007D01000-memory.dmp

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memory/3952-3-0x0000000005950000-0x0000000005951000-memory.dmp

Download

memory/3952-2-0x0000000005D70000-0x0000000005D71000-memory.dmp

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memory/3952-4-0x0000000005910000-0x0000000005911000-memory.dmp

Download

memory/3952-7-0x0000000001710000-0x0000000001749000-memory.dmp

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memory/3952-0-0x0000000073270000-0x000000007395E000-memory.dmp

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memory/3952-1-0x0000000000F90000-0x0000000000F91000-memory.dmp

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