xpertrat | f1c272538e67cbf0745b5c33f4c01e561ba358d56426214dad8c39167a8d92db

General

Target

gunzipped.exe
Size

355KB
MD5

1930ef3293c2754bd6ba9af70da667f6
SHA1

2264013df701a7f13eb36337990893f89fa14a05
SHA256

f1c272538e67cbf0745b5c33f4c01e561ba358d56426214dad8c39167a8d92db
SHA512

7ff34eadb9f0698d2b92c0435f0f74f9a5aa8d41d3d2c9afe59f0615e2c657e23ba1769b52129a7bc46f98aae3b9a9dff028f42cddc3de1e48f339ea63fb1638

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

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\F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4 = "C:\\Users\\Admin\\AppData\\Roaming\\F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4\\F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4.exe"	iexplore.exe

Windows security modification 2 TTPs 1 IoCs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

gunzipped.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0" gunzipped.exe

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

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

Processes:

iexplore.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\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-1-5-21-369956170-74428499-1628131376-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Windows\CurrentVersion\Run\F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4 = "C:\\Users\\Admin\\AppData\\Roaming\\F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4\\F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4.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\F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4 = "C:\\Users\\Admin\\AppData\\Roaming\\F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4\\F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4.exe"	iexplore.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

gunzipped.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" gunzipped.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2788 1224 WerFault.exe iexplore.exe

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

pid	pid_target	process	target process
2788	1224	WerFault.exe	iexplore.exe

Suspicious use of SetThreadContext 8 IoCs

Processes:

gunzipped.exegunzipped.exeiexplore.exe

description	pid	process	target process
PID 2480 set thread context of 420	2480	gunzipped.exe	gunzipped.exe
PID 420 set thread context of 3684	420	gunzipped.exe	iexplore.exe
PID 3684 set thread context of 2820	3684	iexplore.exe	iexplore.exe
PID 3684 set thread context of 1604	3684	iexplore.exe	iexplore.exe
PID 3684 set thread context of 1512	3684	iexplore.exe	iexplore.exe
PID 3684 set thread context of 1212	3684	iexplore.exe	iexplore.exe
PID 3684 set thread context of 1224	3684	iexplore.exe	iexplore.exe
PID 3684 set thread context of 3692	3684	iexplore.exe	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

gunzipped.exeiexplore.exeiexplore.exe

pid process

420 gunzipped.exe
420 gunzipped.exe
420 gunzipped.exe
420 gunzipped.exe
2820 iexplore.exe
2820 iexplore.exe
1512 iexplore.exe
1512 iexplore.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

iexplore.exeiexplore.exe

description pid process

Token: SeDebugPrivilege 3684 iexplore.exe
Token: SeDebugPrivilege 2820 iexplore.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

gunzipped.exeiexplore.exe

pid process

420 gunzipped.exe
3684 iexplore.exe

pid	process
420	gunzipped.exe
420	gunzipped.exe
420	gunzipped.exe
420	gunzipped.exe
2820	iexplore.exe
2820	iexplore.exe
1512	iexplore.exe
1512	iexplore.exe

description	pid	process
Token: SeDebugPrivilege	3684	iexplore.exe
Token: SeDebugPrivilege	2820	iexplore.exe

pid	process
420	gunzipped.exe
3684	iexplore.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

gunzipped.exegunzipped.exeiexplore.exe

description	pid	process	target process
PID 2480 wrote to memory of 420	2480	gunzipped.exe	gunzipped.exe
PID 2480 wrote to memory of 420	2480	gunzipped.exe	gunzipped.exe
PID 2480 wrote to memory of 420	2480	gunzipped.exe	gunzipped.exe
PID 2480 wrote to memory of 420	2480	gunzipped.exe	gunzipped.exe
PID 2480 wrote to memory of 420	2480	gunzipped.exe	gunzipped.exe
PID 2480 wrote to memory of 420	2480	gunzipped.exe	gunzipped.exe
PID 2480 wrote to memory of 420	2480	gunzipped.exe	gunzipped.exe
PID 420 wrote to memory of 3684	420	gunzipped.exe	iexplore.exe
PID 420 wrote to memory of 3684	420	gunzipped.exe	iexplore.exe
PID 420 wrote to memory of 3684	420	gunzipped.exe	iexplore.exe
PID 420 wrote to memory of 3684	420	gunzipped.exe	iexplore.exe
PID 420 wrote to memory of 3684	420	gunzipped.exe	iexplore.exe
PID 420 wrote to memory of 3684	420	gunzipped.exe	iexplore.exe
PID 420 wrote to memory of 3684	420	gunzipped.exe	iexplore.exe
PID 420 wrote to memory of 3684	420	gunzipped.exe	iexplore.exe
PID 3684 wrote to memory of 2820	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 2820	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 2820	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 2820	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 2820	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 2820	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 2820	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 2820	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1604	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1604	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1604	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1604	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1604	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1604	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1604	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1604	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1604	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1512	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1512	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1512	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1512	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1512	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1512	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1512	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1512	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1512	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1212	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1212	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1212	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1212	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1212	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1212	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1212	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1212	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1224	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1224	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1224	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1224	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1224	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1224	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1224	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1224	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 1224	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 3692	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 3692	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 3692	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 3692	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 3692	3684	iexplore.exe	iexplore.exe
PID 3684 wrote to memory of 3692	3684	iexplore.exe	iexplore.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

gunzipped.exe

description ioc process

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

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

C:\Users\Admin\AppData\Local\Temp\gunzipped.exe
"C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2480

C:\Users\Admin\AppData\Local\Temp\gunzipped.exe
"C:\Users\Admin\AppData\Local\Temp\gunzipped.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:420

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\gunzipped.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:3684

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4\kejsvxjmj0.txt"
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2820

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4\kejsvxjmj1.txt"
4⤵
- Accesses Microsoft Outlook accounts
PID:1604

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4\kejsvxjmj2.txt"
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:1512

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4\kejsvxjmj3.txt"
4⤵
PID:1212

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4\kejsvxjmj4.txt"
4⤵
PID:1224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1224 -s 92
5⤵
- Program crash
PID:2788

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4\kejsvxjmj4.txt"
4⤵
PID:3692

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

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4\kejsvxjmj2.txt
MD5
f94dc819ca773f1e3cb27abbc9e7fa27

SHA1
9a7700efadc5ea09ab288544ef1e3cd876255086

SHA256
a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

SHA512
72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

Download Submit
C:\Users\Admin\AppData\Roaming\F7K2C8U6-D3B1-L1P8-Q8A7-N1K2E5Q6W0F4\kejsvxjmj4.txt
MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/420-124-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/420-129-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/420-125-0x00000000004010B8-mapping.dmp

Download
memory/1212-134-0x0000000000413750-mapping.dmp

Download
memory/1224-135-0x000000000040C2A8-mapping.dmp

Download
memory/1512-132-0x0000000000442F04-mapping.dmp

Download
memory/1604-131-0x0000000000411654-mapping.dmp

Download
memory/2480-118-0x0000000004BB0000-0x0000000004C42000-memory.dmp

Filesize
584KB

Download
memory/2480-121-0x0000000005050000-0x0000000005060000-memory.dmp

Filesize
64KB

Download
memory/2480-120-0x0000000005650000-0x00000000056EC000-memory.dmp

Filesize
624KB

Download
memory/2480-122-0x0000000004BB0000-0x00000000050AE000-memory.dmp

Filesize
5.0MB

Download
memory/2480-115-0x0000000000280000-0x00000000002DE000-memory.dmp

Filesize
376KB

Download
memory/2480-119-0x0000000004B00000-0x0000000004B0A000-memory.dmp

Filesize
40KB

Download
memory/2480-123-0x0000000005990000-0x00000000059F2000-memory.dmp

Filesize
392KB

Download
memory/2480-117-0x00000000050B0000-0x00000000055AE000-memory.dmp

Filesize
5.0MB

Download
memory/2480-116-0x0000000000280000-0x00000000002DE000-memory.dmp

Filesize
376KB

Download
memory/2820-130-0x0000000000423BC0-mapping.dmp

Download
memory/3684-128-0x0000000000401364-mapping.dmp

Download
memory/3692-136-0x000000000040C2A8-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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