xtremerat | eb441531940d93e21294e00508f64209d3d8af24a35310c34c91e436ff61b920

General

Target

JaffaCakes118_adbd5bcbab544a5094ed42aad5afc0f4.exe
Size

21KB
MD5

adbd5bcbab544a5094ed42aad5afc0f4
SHA1

ccebd8c3fb2e288efda0becb46b000b956bf4f62
SHA256

eb441531940d93e21294e00508f64209d3d8af24a35310c34c91e436ff61b920
SHA512

b1c25084569e30007329e5ecc25586cdb6a2bd75237d3b296de19f094d53489a9ba460fda65fa7ce25017f4964d89c9aa73327a8990bf74d86def55623ae9d39
SSDEEP

384:8IdmF+TH95xJMu/0PlxjV8BINhuLJ37tMOpuqqz3KK7eIVmbYXb1gorR/spLR:8IsF8HdbKjV8BX7Vy6K7eIVYYL1JrRk

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral1/memory/2564-4-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/5672-5-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral1/memory/2564-7-0x0000000000C80000-0x0000000000C96000-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_adbd5bcbab544a5094ed42aad5afc0f4.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_adbd5bcbab544a5094ed42aad5afc0f4.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_adbd5bcbab544a5094ed42aad5afc0f4.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	JaffaCakes118_adbd5bcbab544a5094ed42aad5afc0f4.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/5672-0-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2564-4-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/5672-5-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral1/memory/2564-7-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\InstallDir\Server.exe	JaffaCakes118_adbd5bcbab544a5094ed42aad5afc0f4.exe
File created	C:\Windows\InstallDir\Server.exe	JaffaCakes118_adbd5bcbab544a5094ed42aad5afc0f4.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_adbd5bcbab544a5094ed42aad5afc0f4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2564	explorer.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5672 wrote to memory of 1600	5672	JaffaCakes118_adbd5bcbab544a5094ed42aad5afc0f4.exe	84
PID 5672 wrote to memory of 1600	5672	JaffaCakes118_adbd5bcbab544a5094ed42aad5afc0f4.exe	84
PID 5672 wrote to memory of 2564	5672	JaffaCakes118_adbd5bcbab544a5094ed42aad5afc0f4.exe	85
PID 5672 wrote to memory of 2564	5672	JaffaCakes118_adbd5bcbab544a5094ed42aad5afc0f4.exe	85
PID 5672 wrote to memory of 2564	5672	JaffaCakes118_adbd5bcbab544a5094ed42aad5afc0f4.exe	85
PID 5672 wrote to memory of 2564	5672	JaffaCakes118_adbd5bcbab544a5094ed42aad5afc0f4.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_adbd5bcbab544a5094ed42aad5afc0f4.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_adbd5bcbab544a5094ed42aad5afc0f4.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:5672
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:1600
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2564

Network

MITRE ATT&CK Enterprise v16

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

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\((Mutex)).xtr

Filesize
5KB

MD5
b991f6648c2d7bce78ade71c48ecd588

SHA1
340c6d64bc188dc2c94a7993b4dce24ab726e69a

SHA256
d68b0d266420d91961a1476a2e93b31afc7edb3838d24a5220422d1e86d9f580

SHA512
382d70952b6fd33f42597fc8a5df8c170fb48e41416a76bd0ddca0d18adda7a6255e26f69bf5aede09eb2a1f59b0d473e0a61880555a34e1d310d1d03ba676ac

Download Submit
memory/2564-4-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2564-7-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/5672-0-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/5672-5-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads