xtremerat | 4fbbd96811ee7c05a142aef8f8fe94264abec0d0bf117ae05f1b89c352fd365c

General

Target

JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe
Size

69KB
MD5

6279fc065968ef000f20cb3709aaaa2b
SHA1

8907995070a91d30e5c44cda836deff27b04c369
SHA256

4fbbd96811ee7c05a142aef8f8fe94264abec0d0bf117ae05f1b89c352fd365c
SHA512

883e5ad89dc7fdd137c7ac131c2a35e607c1d02163b5b771567e007c15b3c38ec1472398fd0214572fc50623872b7f82526024ae48255e2fc2dda8c3e43008fa
SSDEEP

1536:zdNrfzlur2F+Yc24zrkF0QgGh8a4zlpY5DPJOamBfz:zdNrcr2F+YZ8rYdgGKPcDfmBb

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

godfatherbebers.no-ip.biz

Signatures

Detect XtremeRAT payload 8 IoCs

resource	yara_rule
behavioral2/memory/4848-7-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4848-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3444-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/5068-10-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4848-11-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/5068-13-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/5068-14-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3444-15-0x0000000010000000-0x000000001004D000-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\{5460C4DF-B266-909E-CB58-E32B79832EB2}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\system32\\InstallDir\\Server.exe restart"	rundll32.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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\InstallDir\\Server.exe"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\system32\\InstallDir\\Server.exe"	rundll32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\InstallDir\Server.exe	rundll32.exe
File created	C:\Windows\SysWOW64\InstallDir\Server.exe	rundll32.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3352 set thread context of 4848	3352	JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe	83

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4848-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4848-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4848-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4848-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3444-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/5068-10-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4848-11-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/5068-13-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/5068-14-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3444-15-0x0000000010000000-0x000000001004D000-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
1028	3444	WerFault.exe	84
4080	3444	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 4 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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3352	JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe
5068	rundll32.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3352 wrote to memory of 4848	3352	JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe	83
PID 3352 wrote to memory of 4848	3352	JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe	83
PID 3352 wrote to memory of 4848	3352	JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe	83
PID 3352 wrote to memory of 4848	3352	JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe	83
PID 3352 wrote to memory of 4848	3352	JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe	83
PID 3352 wrote to memory of 4848	3352	JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe	83
PID 3352 wrote to memory of 4848	3352	JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe	83
PID 3352 wrote to memory of 4848	3352	JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe	83
PID 4848 wrote to memory of 3444	4848	JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe	84
PID 4848 wrote to memory of 3444	4848	JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe	84
PID 4848 wrote to memory of 3444	4848	JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe	84
PID 4848 wrote to memory of 3444	4848	JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe	84
PID 4848 wrote to memory of 5068	4848	JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe	85
PID 4848 wrote to memory of 5068	4848	JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe	85
PID 4848 wrote to memory of 5068	4848	JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe	85
PID 4848 wrote to memory of 5068	4848	JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3352
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6279fc065968ef000f20cb3709aaaa2b.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4848
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3444
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3444 -s 480
      4⤵
      Program crash
      PID:1028
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3444 -s 500
      4⤵
      Program crash
      PID:4080
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe
    3⤵
    - Boot or Logon Autostart Execution: Active Setup
    - Adds Run key to start application
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:5068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3444 -ip 3444
1⤵
PID:4840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3444 -ip 3444
1⤵
PID:984

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/3352-0-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/3352-6-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/3444-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3444-15-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4848-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4848-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4848-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4848-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4848-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/5068-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/5068-13-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/5068-14-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads