xtremerat | baa0f4aec9ba951e19ab8889faf8cd1660d68fb41bb557a96f0ee98907d66deb

General

Target

JaffaCakes118_798a3c4255ff308779b2b0326a2efebc.exe
Size

21KB
MD5

798a3c4255ff308779b2b0326a2efebc
SHA1

a7df47fe49ef2fd41a691422b88d22d4c67fcf35
SHA256

baa0f4aec9ba951e19ab8889faf8cd1660d68fb41bb557a96f0ee98907d66deb
SHA512

f91a255aacaadb538ecb291dff4852c2c19c39d93b5c0f9516af489b26331cb727b03be92d39fb18a4d1eb197dbce2a772e00e90cf1de8619b96c133f0f478f6
SSDEEP

384:3IdmF+TH95xJMu/0PlxjV8BINhuLJ37tMOpuqqz3KK7eIVmi7gd/zCFscLpLR:3IsF8HdbKjV8BX7Vy6K7eIVTUd/Isy

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral1/memory/2676-6-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/2860-7-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/2676-9-0x0000000000C80000-0x0000000000C96000-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

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
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}	JaffaCakes118_798a3c4255ff308779b2b0326a2efebc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart"	JaffaCakes118_798a3c4255ff308779b2b0326a2efebc.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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe"	JaffaCakes118_798a3c4255ff308779b2b0326a2efebc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	JaffaCakes118_798a3c4255ff308779b2b0326a2efebc.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2860-0-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2676-6-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2860-7-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2676-9-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\InstallDir\Server.exe	JaffaCakes118_798a3c4255ff308779b2b0326a2efebc.exe
File created	C:\Windows\InstallDir\Server.exe	JaffaCakes118_798a3c4255ff308779b2b0326a2efebc.exe

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	JaffaCakes118_798a3c4255ff308779b2b0326a2efebc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2676	explorer.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2860 wrote to memory of 2716	2860	JaffaCakes118_798a3c4255ff308779b2b0326a2efebc.exe	31
PID 2860 wrote to memory of 2716	2860	JaffaCakes118_798a3c4255ff308779b2b0326a2efebc.exe	31
PID 2860 wrote to memory of 2716	2860	JaffaCakes118_798a3c4255ff308779b2b0326a2efebc.exe	31
PID 2860 wrote to memory of 2716	2860	JaffaCakes118_798a3c4255ff308779b2b0326a2efebc.exe	31
PID 2860 wrote to memory of 2676	2860	JaffaCakes118_798a3c4255ff308779b2b0326a2efebc.exe	32
PID 2860 wrote to memory of 2676	2860	JaffaCakes118_798a3c4255ff308779b2b0326a2efebc.exe	32
PID 2860 wrote to memory of 2676	2860	JaffaCakes118_798a3c4255ff308779b2b0326a2efebc.exe	32
PID 2860 wrote to memory of 2676	2860	JaffaCakes118_798a3c4255ff308779b2b0326a2efebc.exe	32
PID 2860 wrote to memory of 2676	2860	JaffaCakes118_798a3c4255ff308779b2b0326a2efebc.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_798a3c4255ff308779b2b0326a2efebc.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_798a3c4255ff308779b2b0326a2efebc.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 WriteProcessMemory
PID:2860
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe"
  2⤵
  PID:2716
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2676

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/2676-4-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2676-6-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2676-9-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2860-0-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2860-7-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads