xtremerat | ff2d7b82b6b2a2ef1d376ce508fd7e2deea686888ce16afbce5ff256f8ae6664

General

Target

25611cee5330e2e3605d7196b83d490a_JaffaCakes118.exe
Size

65KB
MD5

25611cee5330e2e3605d7196b83d490a
SHA1

4c27dcd61103921a044de21826530349d382bc18
SHA256

ff2d7b82b6b2a2ef1d376ce508fd7e2deea686888ce16afbce5ff256f8ae6664
SHA512

88d2d82c5e36abdb78e1028b5b1f56c83cb2f5a8df2467d9d1c827c106c9acb24b12bc755a5d3fa0bfa6e5820658f40f6fa224126a9b3125adf12beea1b729fa
SSDEEP

768:d9m1Sq4NQkrBsH1U8z05DeeQuMVTyN8ipHo37Vmd6AeXVtWAJ7A+7voNw9ASwB/:asq+Q1aZQuIyJp0mgA+FJ0LNw6/

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

o-0o07.myftp.biz

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/4432-0-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/4432-2-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/2180-3-0x0000000010000000-0x0000000010048000-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

Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart"	25611cee5330e2e3605d7196b83d490a_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}	25611cee5330e2e3605d7196b83d490a_JaffaCakes118.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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	25611cee5330e2e3605d7196b83d490a_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe"	25611cee5330e2e3605d7196b83d490a_JaffaCakes118.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\InstallDir\Server.exe	25611cee5330e2e3605d7196b83d490a_JaffaCakes118.exe
File created	C:\Windows\InstallDir\Server.exe	25611cee5330e2e3605d7196b83d490a_JaffaCakes118.exe

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2428	4432	WerFault.exe	85
3156	4432	WerFault.exe	85

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	25611cee5330e2e3605d7196b83d490a_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2180	25611cee5330e2e3605d7196b83d490a_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 4432	2180	25611cee5330e2e3605d7196b83d490a_JaffaCakes118.exe	85
PID 2180 wrote to memory of 4432	2180	25611cee5330e2e3605d7196b83d490a_JaffaCakes118.exe	85
PID 2180 wrote to memory of 4432	2180	25611cee5330e2e3605d7196b83d490a_JaffaCakes118.exe	85
PID 2180 wrote to memory of 4432	2180	25611cee5330e2e3605d7196b83d490a_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\25611cee5330e2e3605d7196b83d490a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\25611cee5330e2e3605d7196b83d490a_JaffaCakes118.exe"
1⤵
- Boot or Logon Autostart Execution: Active Setup
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4432
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4432 -s 480
    3⤵
    - Program crash
    PID:2428
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4432 -s 488
    3⤵
    - Program crash
    PID:3156

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4432 -ip 4432
1⤵
PID:2320

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4432 -ip 4432
1⤵
PID:2240

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2180-3-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4432-0-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4432-2-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads