xtremerat | 77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be

General

Target

77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe
Size

932KB
MD5

cbf6765e51d13344cb35aa29360e07e3
SHA1

31e94508068ac287116a802e7d9e9df110c7f2cf
SHA256

77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be
SHA512

e0f70fccd9d0bdeb3547630550501af22943da9f1b18d5e83bc3f6981fef46b784f699f8f56c14bc7b6d30f01f39cbe5ab498aa4c2f58f169ad58c4f7e3c8a48
SSDEEP

24576:ZD1T+tIEhyZiEPVp+VSp2xsZ5/GAOIIYIG1cZIxv0XBN:l1TFv8EdTp7OAOIFZaZxz

Score

10^/10

xtremerat evasion persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

ftp.ftpserver.com

Signatures

Detect XtremeRAT payload 2 IoCs

resource	yara_rule
behavioral2/memory/3252-144-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3252-147-0x0000000010000000-0x000000001004D000-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

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3252-137-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3252-140-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3252-144-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3252-147-0x0000000010000000-0x000000001004D000-memory.dmp	upx

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.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Software\Wine	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 392 set thread context of 3252	392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe	85

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

System Information Discovery
T1082
Runs net.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe
392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe
392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe
392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe
392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe
392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe
392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe
392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe
392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe
392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 392 wrote to memory of 1636	392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe	84
PID 392 wrote to memory of 1636	392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe	84
PID 392 wrote to memory of 1636	392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe	84
PID 392 wrote to memory of 3252	392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe	85
PID 392 wrote to memory of 3252	392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe	85
PID 392 wrote to memory of 3252	392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe	85
PID 392 wrote to memory of 3252	392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe	85
PID 392 wrote to memory of 3252	392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe	85
PID 392 wrote to memory of 3252	392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe	85
PID 392 wrote to memory of 3252	392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe	85
PID 392 wrote to memory of 3252	392	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe	85
PID 1636 wrote to memory of 1340	1636	cmd.exe	87
PID 1636 wrote to memory of 1340	1636	cmd.exe	87
PID 1636 wrote to memory of 1340	1636	cmd.exe	87
PID 1340 wrote to memory of 3888	1340	net.exe	88
PID 1340 wrote to memory of 3888	1340	net.exe	88
PID 1340 wrote to memory of 3888	1340	net.exe	88
PID 3252 wrote to memory of 5056	3252	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe	89
PID 3252 wrote to memory of 5056	3252	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe	89
PID 3252 wrote to memory of 5056	3252	77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe	89

C:\Users\Admin\AppData\Local\Temp\77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe
"C:\Users\Admin\AppData\Local\Temp\77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:392
- C:\Windows\SysWOW64\cmd.exe
  /c net stop MpsSvc
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1636
- - C:\Windows\SysWOW64\net.exe
    net stop MpsSvc
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1340
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop MpsSvc
      4⤵
      PID:3888
- C:\Users\Admin\AppData\Local\Temp\77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe
  C:\Users\Admin\AppData\Local\Temp\77e8c9237e35d00f33774f5aebd37606567b160ae615828796f372bf448a45be.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3252
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:5056

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

1

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/392-139-0x0000000000400000-0x00000000005D1000-memory.dmp

Filesize
1.8MB

Download
memory/392-133-0x0000000077120000-0x00000000772C3000-memory.dmp

Filesize
1.6MB

Download
memory/392-134-0x0000000000400000-0x00000000005D1000-memory.dmp

Filesize
1.8MB

Download
memory/392-141-0x0000000004530000-0x0000000004534000-memory.dmp

Filesize
16KB

Download
memory/392-132-0x0000000000400000-0x00000000005D1000-memory.dmp

Filesize
1.8MB

Download
memory/392-142-0x0000000077120000-0x00000000772C3000-memory.dmp

Filesize
1.6MB

Download
memory/3252-140-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3252-144-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3252-143-0x0000000000400000-0x00000000005D1000-memory.dmp

Filesize
1.8MB

Download
memory/3252-137-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3252-147-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads