xpertrat | 31ec85607b59877f42e791a2ac23d8c8c95edc8bad7fc0939a90a3807f445c6d

Analysis

max time kernel
142s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
08-02-2024 13:21

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General

Target

Új megrendelés - 00905173088 CPTL árajánlat - egyenként 100.exe
Size

110KB
MD5

e18a8e37b5d2cfaec89222fd74c88081
SHA1

19a794cb433dc4445e33becc7c2ce7d211baefa6
SHA256

31ec85607b59877f42e791a2ac23d8c8c95edc8bad7fc0939a90a3807f445c6d
SHA512

287358b925ff7a6e214ea29612461c94fbc12eb145a8ed3cfc8a7400151a6fe7ebc399d6ae0ad22d31dd8b9e2082668957a30baca807502cf1a78beb33b5c2c8
SSDEEP

1536:Kx+EiewYluxHtThsiP34bbCaFJqIc5fpD7/xL:KrvyRhsiffaKIc5hDF

Score

10^/10

xpertrat blaze collection evasion persistence rat trojan upx

Malware Config

Extracted

Family

xpertrat

Version

3.0.10

Botnet

BLAZE

twart.myfirewall.org:5344

Mutex

A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8

Signatures

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	calc.exe

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0"	calc.exe

XpertRAT
XpertRAT is a remote access trojan with various capabilities.
rat xpertrat

XpertRAT Core payload 1 IoCs

resource	yara_rule
behavioral2/memory/2292-16-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/2232-28-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/3048-31-0x0000000000400000-0x0000000000459000-memory.dmp	WebBrowserPassView

Nirsoft 3 IoCs

resource	yara_rule
behavioral2/memory/2232-28-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral2/memory/3048-31-0x0000000000400000-0x0000000000459000-memory.dmp	Nirsoft
behavioral2/memory/1516-39-0x0000000000400000-0x0000000000415000-memory.dmp	Nirsoft

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

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\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8 = "C:\\Users\\Admin\\AppData\\Roaming\\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8\\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8.exe"	iexplore.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1140-27-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/2980-38-0x0000000000400000-0x0000000000416000-memory.dmp	upx

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	iexplore.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8 = "C:\\Users\\Admin\\AppData\\Roaming\\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8\\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8.exe"	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8 = "C:\\Users\\Admin\\AppData\\Roaming\\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8\\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8.exe"	iexplore.exe

Program crash 3 IoCs

pid	pid_target	Process	procid_target
4048	1992	WerFault.exe	86
2636	2232	WerFault.exe	91
1236	1324	WerFault.exe	96

Suspicious use of SetThreadContext 10 IoCs

description	pid	Process	procid_target
PID 3504 set thread context of 1500	3504	Új megrendelés - 00905173088 CPTL árajánlat - egyenként 100.exe	84
PID 1500 set thread context of 2292	1500	calc.exe	85
PID 2292 set thread context of 1992	2292	iexplore.exe	86
PID 2292 set thread context of 1140	2292	iexplore.exe	90
PID 2292 set thread context of 2232	2292	iexplore.exe	91
PID 2292 set thread context of 2696	2292	iexplore.exe	94
PID 2292 set thread context of 3048	2292	iexplore.exe	95
PID 2292 set thread context of 1324	2292	iexplore.exe	96
PID 2292 set thread context of 2980	2292	iexplore.exe	99
PID 2292 set thread context of 1516	2292	iexplore.exe	100

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1500	calc.exe
1500	calc.exe
1140	iexplore.exe
1140	iexplore.exe
1500	calc.exe
1500	calc.exe
3048	iexplore.exe
3048	iexplore.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2292	iexplore.exe
Token: SeDebugPrivilege	1140	iexplore.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1500	calc.exe
2292	iexplore.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3504 wrote to memory of 1500	3504	Új megrendelés - 00905173088 CPTL árajánlat - egyenként 100.exe	84
PID 3504 wrote to memory of 1500	3504	Új megrendelés - 00905173088 CPTL árajánlat - egyenként 100.exe	84
PID 3504 wrote to memory of 1500	3504	Új megrendelés - 00905173088 CPTL árajánlat - egyenként 100.exe	84
PID 3504 wrote to memory of 1500	3504	Új megrendelés - 00905173088 CPTL árajánlat - egyenként 100.exe	84
PID 3504 wrote to memory of 1500	3504	Új megrendelés - 00905173088 CPTL árajánlat - egyenként 100.exe	84
PID 3504 wrote to memory of 1500	3504	Új megrendelés - 00905173088 CPTL árajánlat - egyenként 100.exe	84
PID 3504 wrote to memory of 1500	3504	Új megrendelés - 00905173088 CPTL árajánlat - egyenként 100.exe	84
PID 1500 wrote to memory of 2292	1500	calc.exe	85
PID 1500 wrote to memory of 2292	1500	calc.exe	85
PID 1500 wrote to memory of 2292	1500	calc.exe	85
PID 1500 wrote to memory of 2292	1500	calc.exe	85
PID 1500 wrote to memory of 2292	1500	calc.exe	85
PID 1500 wrote to memory of 2292	1500	calc.exe	85
PID 1500 wrote to memory of 2292	1500	calc.exe	85
PID 1500 wrote to memory of 2292	1500	calc.exe	85
PID 2292 wrote to memory of 1992	2292	iexplore.exe	86
PID 2292 wrote to memory of 1992	2292	iexplore.exe	86
PID 2292 wrote to memory of 1992	2292	iexplore.exe	86
PID 2292 wrote to memory of 1992	2292	iexplore.exe	86
PID 2292 wrote to memory of 1992	2292	iexplore.exe	86
PID 2292 wrote to memory of 1992	2292	iexplore.exe	86
PID 2292 wrote to memory of 1992	2292	iexplore.exe	86
PID 2292 wrote to memory of 1992	2292	iexplore.exe	86
PID 2292 wrote to memory of 1140	2292	iexplore.exe	90
PID 2292 wrote to memory of 1140	2292	iexplore.exe	90
PID 2292 wrote to memory of 1140	2292	iexplore.exe	90
PID 2292 wrote to memory of 1140	2292	iexplore.exe	90
PID 2292 wrote to memory of 1140	2292	iexplore.exe	90
PID 2292 wrote to memory of 1140	2292	iexplore.exe	90
PID 2292 wrote to memory of 1140	2292	iexplore.exe	90
PID 2292 wrote to memory of 1140	2292	iexplore.exe	90
PID 2292 wrote to memory of 2232	2292	iexplore.exe	91
PID 2292 wrote to memory of 2232	2292	iexplore.exe	91
PID 2292 wrote to memory of 2232	2292	iexplore.exe	91
PID 2292 wrote to memory of 2232	2292	iexplore.exe	91
PID 2292 wrote to memory of 2232	2292	iexplore.exe	91
PID 2292 wrote to memory of 2232	2292	iexplore.exe	91
PID 2292 wrote to memory of 2232	2292	iexplore.exe	91
PID 2292 wrote to memory of 2232	2292	iexplore.exe	91
PID 2292 wrote to memory of 2232	2292	iexplore.exe	91
PID 2292 wrote to memory of 2696	2292	iexplore.exe	94
PID 2292 wrote to memory of 2696	2292	iexplore.exe	94
PID 2292 wrote to memory of 2696	2292	iexplore.exe	94
PID 2292 wrote to memory of 2696	2292	iexplore.exe	94
PID 2292 wrote to memory of 2696	2292	iexplore.exe	94
PID 2292 wrote to memory of 2696	2292	iexplore.exe	94
PID 2292 wrote to memory of 2696	2292	iexplore.exe	94
PID 2292 wrote to memory of 2696	2292	iexplore.exe	94
PID 2292 wrote to memory of 2696	2292	iexplore.exe	94
PID 2292 wrote to memory of 3048	2292	iexplore.exe	95
PID 2292 wrote to memory of 3048	2292	iexplore.exe	95
PID 2292 wrote to memory of 3048	2292	iexplore.exe	95
PID 2292 wrote to memory of 3048	2292	iexplore.exe	95
PID 2292 wrote to memory of 3048	2292	iexplore.exe	95
PID 2292 wrote to memory of 3048	2292	iexplore.exe	95
PID 2292 wrote to memory of 3048	2292	iexplore.exe	95
PID 2292 wrote to memory of 3048	2292	iexplore.exe	95
PID 2292 wrote to memory of 3048	2292	iexplore.exe	95
PID 2292 wrote to memory of 1324	2292	iexplore.exe	96
PID 2292 wrote to memory of 1324	2292	iexplore.exe	96
PID 2292 wrote to memory of 1324	2292	iexplore.exe	96
PID 2292 wrote to memory of 1324	2292	iexplore.exe	96
PID 2292 wrote to memory of 1324	2292	iexplore.exe	96
PID 2292 wrote to memory of 1324	2292	iexplore.exe	96

C:\Users\Admin\AppData\Local\Temp\Új megrendelés - 00905173088 CPTL árajánlat - egyenként 100.exe
"C:\Users\Admin\AppData\Local\Temp\Új megrendelés - 00905173088 CPTL árajánlat - egyenként 100.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3504
- C:\Windows\SysWOW64\calc.exe
  "C:\Windows\SYSWOW64\calc.exe"
  2⤵
  - UAC bypass
  - Windows security bypass
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1500
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    C:\Windows\SysWOW64\calc.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:2292
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8\ykgkuwaup0.txt"
      4⤵
      PID:1992
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1992 -s 84
        5⤵
        Program crash
        
        PID:4048
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8\ykgkuwaup0.txt"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1140
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8\ykgkuwaup1.txt"
      4⤵
      PID:2232
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2232 -s 156
        5⤵
        Program crash
        
        PID:2636
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8\ykgkuwaup1.txt"
      4⤵
      Accesses Microsoft Outlook accounts
      PID:2696
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8\ykgkuwaup2.txt"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:3048
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8\ykgkuwaup3.txt"
      4⤵
      PID:1324
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1324 -s 84
        5⤵
        Program crash
        
        PID:1236
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8\ykgkuwaup3.txt"
      4⤵
      PID:2980
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      /stext "C:\Users\Admin\AppData\Roaming\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8\ykgkuwaup4.txt"
      4⤵
      PID:1516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1992 -ip 1992
1⤵
PID:2348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2232 -ip 2232
1⤵
PID:2908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 1324 -ip 1324
1⤵
PID:3088

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8\ykgkuwaup2.txt

Filesize
3KB

MD5
f94dc819ca773f1e3cb27abbc9e7fa27

SHA1
9a7700efadc5ea09ab288544ef1e3cd876255086

SHA256
a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

SHA512
72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

Download Submit
C:\Users\Admin\AppData\Roaming\A6G228Q5-H8G1-F1T6-U4K6-C1J007E2X0Y8\ykgkuwaup4.txt

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/1140-27-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/1500-29-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1500-12-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1500-9-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1516-39-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2232-28-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2292-16-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2980-38-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3048-31-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/3504-14-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/3504-8-0x0000000006E10000-0x0000000006F10000-memory.dmp

Filesize
1024KB

Download
memory/3504-3-0x0000000005C90000-0x0000000006234000-memory.dmp

Filesize
5.6MB

Download
memory/3504-7-0x0000000006D70000-0x0000000006E0C000-memory.dmp

Filesize
624KB

Download
memory/3504-0-0x00000000753A0000-0x0000000075B50000-memory.dmp

Filesize
7.7MB

Download
memory/3504-4-0x0000000005780000-0x0000000005812000-memory.dmp

Filesize
584KB

Download
memory/3504-2-0x0000000003010000-0x000000000302A000-memory.dmp

Filesize
104KB

Download
memory/3504-6-0x0000000005740000-0x000000000574A000-memory.dmp

Filesize
40KB

Download
memory/3504-5-0x0000000005730000-0x0000000005740000-memory.dmp

Filesize
64KB

Download
memory/3504-1-0x0000000000D20000-0x0000000000D3E000-memory.dmp

Filesize
120KB

Download