xtremerat | d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985

General

Target

d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe
Size

774KB
MD5

21a9fdb556319104338539d95f6944f7
SHA1

de4223d16da9f11cbea887330b26047c472959bb
SHA256

d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985
SHA512

ad350b5ab25898a9f726a96f4622d72a006f6a8355be4ba759f03c95833f932762f263ef9c1b4020e62f45caef7fd924537b3a280e11236c4890777bc28fca07
SSDEEP

12288:Mgf5vlC5jqBwGDd5qUs0LcRrW//ElahUhB5xPi1vCzO0A06b7MP+Dd2kz:MuYqBwGBwmck4xhB5xPDzrI7MP+h2w

Score

10^/10

xtremerat bootkit defense_evasion discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 1 IoCs

resource	yara_rule
behavioral1/memory/2868-24-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat

XtremeRAT
The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.
persistence spyware rat xtremerat
Xtremerat family
xtremerat

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2568	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2568 set thread context of 2868	2568	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe	30

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2868-24-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2868-23-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2868-20-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2868-15-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2868-14-0x0000000010000000-0x000000001004D000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2568	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2568	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2568 wrote to memory of 2868	2568	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe	30
PID 2568 wrote to memory of 2868	2568	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe	30
PID 2568 wrote to memory of 2868	2568	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe	30
PID 2568 wrote to memory of 2868	2568	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe	30
PID 2568 wrote to memory of 2868	2568	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe	30
PID 2568 wrote to memory of 2868	2568	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe	30
PID 2568 wrote to memory of 2868	2568	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe	30
PID 2568 wrote to memory of 2868	2568	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe	30
PID 2868 wrote to memory of 2732	2868	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe	31
PID 2868 wrote to memory of 2732	2868	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe	31
PID 2868 wrote to memory of 2732	2868	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe	31
PID 2868 wrote to memory of 2732	2868	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe	31
PID 2868 wrote to memory of 2732	2868	d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe	31

C:\Users\Admin\AppData\Local\Temp\d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe
"C:\Users\Admin\AppData\Local\Temp\d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe"
1⤵
- Identifies Wine through registry keys
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2568
- C:\Users\Admin\AppData\Local\Temp\d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe
  C:\Users\Admin\AppData\Local\Temp\d98abbe8216bdd27f0b21e24938260f486b2c30146e221ee5b1468828c114985.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2868
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:2732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2568-29-0x0000000000401000-0x0000000000408000-memory.dmp

Filesize
28KB

Download
memory/2568-16-0x0000000000400000-0x00000000004FE000-memory.dmp

Filesize
1016KB

Download
memory/2568-2-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2568-3-0x0000000000400000-0x00000000004FE000-memory.dmp

Filesize
1016KB

Download
memory/2568-5-0x0000000000401000-0x0000000000408000-memory.dmp

Filesize
28KB

Download
memory/2568-7-0x0000000000400000-0x00000000004FE000-memory.dmp

Filesize
1016KB

Download
memory/2568-10-0x0000000000400000-0x00000000004FE000-memory.dmp

Filesize
1016KB

Download
memory/2568-12-0x0000000000400000-0x00000000004FE000-memory.dmp

Filesize
1016KB

Download
memory/2568-11-0x0000000000400000-0x00000000004FE000-memory.dmp

Filesize
1016KB

Download
memory/2568-9-0x0000000000400000-0x00000000004FE000-memory.dmp

Filesize
1016KB

Download
memory/2568-8-0x0000000000400000-0x00000000004FE000-memory.dmp

Filesize
1016KB

Download
memory/2568-17-0x0000000004990000-0x0000000004A8E000-memory.dmp

Filesize
1016KB

Download
memory/2568-0-0x0000000000400000-0x00000000004FE000-memory.dmp

Filesize
1016KB

Download
memory/2568-27-0x0000000000400000-0x00000000004FE000-memory.dmp

Filesize
1016KB

Download
memory/2568-1-0x0000000000250000-0x0000000000280000-memory.dmp

Filesize
192KB

Download
memory/2568-28-0x0000000000250000-0x0000000000280000-memory.dmp

Filesize
192KB

Download
memory/2568-21-0x0000000000400000-0x00000000004FE000-memory.dmp

Filesize
1016KB

Download
memory/2868-23-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2868-24-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2868-20-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2868-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2868-25-0x0000000000400000-0x00000000004FE000-memory.dmp

Filesize
1016KB

Download
memory/2868-15-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2868-14-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2868-13-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads