xtremerat | 27663966c2ab91e4f7dc1b71261568a7f7d953493355a81c085bbaac37b83956

General

Target

JaffaCakes118_2728623877430c50170267680ec708b0.exe
Size

254KB
MD5

2728623877430c50170267680ec708b0
SHA1

f3d200e5b59fabfa5f1646b4e71693a9d7bf696a
SHA256

27663966c2ab91e4f7dc1b71261568a7f7d953493355a81c085bbaac37b83956
SHA512

6343e14768dc5aa5f0ff4ed3ae46bb234d47e489e5954b8df11cea551ef0da63b16794dfa312f87cf822a8d7f5147230228bfa21bd77d6aed6c8ec020af678ea
SSDEEP

6144:+zYjGZbhLfF9yPPA/7W/R0MJvN+c2HGb29NMl:+zpbhLfFoPYC/R0uUc2HC2HI

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

cescmouad.zapto.org

Signatures

Detect XtremeRAT payload 6 IoCs

resource	yara_rule
behavioral2/memory/216-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/216-7-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3080-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/216-12-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3080-13-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/216-14-0x0000000010000000-0x000000001004D000-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

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\{E7316377-6520-YWR2-WF43-621EPL56R530}	JaffaCakes118_2728623877430c50170267680ec708b0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{E7316377-6520-YWR2-WF43-621EPL56R530}\StubPath = "C:\\drivers\\driver.exe restart"	JaffaCakes118_2728623877430c50170267680ec708b0.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:\\drivers\\driver.exe"	JaffaCakes118_2728623877430c50170267680ec708b0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\drivers\\driver.exe"	JaffaCakes118_2728623877430c50170267680ec708b0.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1240 set thread context of 216	1240	JaffaCakes118_2728623877430c50170267680ec708b0.exe	82

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/216-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/216-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/216-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/216-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3080-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/216-12-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3080-13-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/216-14-0x0000000010000000-0x000000001004D000-memory.dmp	upx

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
5072	3080	WerFault.exe	83
1300	3080	WerFault.exe	83

System Location Discovery: System Language Discovery 1 TTPs 3 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_2728623877430c50170267680ec708b0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2728623877430c50170267680ec708b0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1240	JaffaCakes118_2728623877430c50170267680ec708b0.exe
216	JaffaCakes118_2728623877430c50170267680ec708b0.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1240 wrote to memory of 216	1240	JaffaCakes118_2728623877430c50170267680ec708b0.exe	82
PID 1240 wrote to memory of 216	1240	JaffaCakes118_2728623877430c50170267680ec708b0.exe	82
PID 1240 wrote to memory of 216	1240	JaffaCakes118_2728623877430c50170267680ec708b0.exe	82
PID 1240 wrote to memory of 216	1240	JaffaCakes118_2728623877430c50170267680ec708b0.exe	82
PID 1240 wrote to memory of 216	1240	JaffaCakes118_2728623877430c50170267680ec708b0.exe	82
PID 1240 wrote to memory of 216	1240	JaffaCakes118_2728623877430c50170267680ec708b0.exe	82
PID 1240 wrote to memory of 216	1240	JaffaCakes118_2728623877430c50170267680ec708b0.exe	82
PID 1240 wrote to memory of 216	1240	JaffaCakes118_2728623877430c50170267680ec708b0.exe	82
PID 216 wrote to memory of 3080	216	JaffaCakes118_2728623877430c50170267680ec708b0.exe	83
PID 216 wrote to memory of 3080	216	JaffaCakes118_2728623877430c50170267680ec708b0.exe	83
PID 216 wrote to memory of 3080	216	JaffaCakes118_2728623877430c50170267680ec708b0.exe	83
PID 216 wrote to memory of 3080	216	JaffaCakes118_2728623877430c50170267680ec708b0.exe	83

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2728623877430c50170267680ec708b0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2728623877430c50170267680ec708b0.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1240
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2728623877430c50170267680ec708b0.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2728623877430c50170267680ec708b0.exe"
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:216
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3080
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3080 -s 480
      4⤵
      Program crash
      PID:5072
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3080 -s 488
      4⤵
      Program crash
      PID:1300

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3080 -ip 3080
1⤵
PID:3752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3080 -ip 3080
1⤵
PID:2948

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/216-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/216-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/216-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/216-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/216-12-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/216-14-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1240-0-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/1240-5-0x0000000000400000-0x0000000000488000-memory.dmp

Filesize
544KB

Download
memory/3080-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3080-13-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads