xtremerat | db1348f472860fab808001d2e3aaa582a39913dd846369bcf03db18185061f37

General

Target

4c73ab4f8d0fc1b498d666e87224d1dc_JaffaCakes118.exe
Size

377KB
MD5

4c73ab4f8d0fc1b498d666e87224d1dc
SHA1

a5017565a789626d5f94ce285cec89099600bd79
SHA256

db1348f472860fab808001d2e3aaa582a39913dd846369bcf03db18185061f37
SHA512

7361bea3dc1a8b5d595b7ddfdd10e92977f44139f8df91f5d933891bc27063cefe5c83380a740f363b3f1ae8196975494efac03bb71e6818688a0b5e3865b50a
SSDEEP

6144:+1dlZro5yoXc/hF/Wu6mPTg4mVhUVps/17/QNLqOYVF5iO/:+1dlZo5y7X7g4mVyU+hqOcF5iO/

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

rap.no-ip.info

Signatures

Detect XtremeRAT payload 8 IoCs

resource	yara_rule
behavioral2/memory/3516-38-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3516-40-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3516-35-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2748-42-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/8-43-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/8-46-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/2748-48-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/8-51-0x0000000010000000-0x000000001004A000-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
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{2RG4TVNW-600Q-0715-7BA4-4QF3OG8545RM}	notepad.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{2RG4TVNW-600Q-0715-7BA4-4QF3OG8545RM}\StubPath = "C:\\Windows\\system32\\InstallDir\\system.exe restart"	notepad.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	4c73ab4f8d0fc1b498d666e87224d1dc_JaffaCakes118.exe

Executes dropped EXE 3 IoCs

pid	Process
1876	4.exe
2132	4.exe
3516	4.exe

Adds Run key to start application 2 TTPs 3 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\system = "C:\\Windows\\system32\\InstallDir\\system.exe"	notepad.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\system = "C:\\Windows\\system32\\InstallDir\\system.exe"	notepad.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\system = "%system%"	notepad.exe

Drops file in System32 directory 3 IoCs

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

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1876 set thread context of 2132	1876	4.exe	86
PID 2132 set thread context of 3516	2132	4.exe	87

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1876-26-0x0000000002060000-0x000000000206D000-memory.dmp	upx
behavioral2/memory/1876-25-0x0000000002060000-0x000000000206D000-memory.dmp	upx
behavioral2/memory/2132-33-0x0000000000560000-0x000000000056D000-memory.dmp	upx
behavioral2/memory/2132-32-0x0000000000560000-0x000000000056D000-memory.dmp	upx

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

System Information Discovery
T1082

Program crash 4 IoCs

pid	pid_target	Process	procid_target
2860	2748	WerFault.exe	89
4896	2748	WerFault.exe	89
972	8	WerFault.exe	91
1612	8	WerFault.exe	91

System Location Discovery: System Language Discovery 1 TTPs 6 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	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4c73ab4f8d0fc1b498d666e87224d1dc_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
8	notepad.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2960 wrote to memory of 1876	2960	4c73ab4f8d0fc1b498d666e87224d1dc_JaffaCakes118.exe	84
PID 2960 wrote to memory of 1876	2960	4c73ab4f8d0fc1b498d666e87224d1dc_JaffaCakes118.exe	84
PID 2960 wrote to memory of 1876	2960	4c73ab4f8d0fc1b498d666e87224d1dc_JaffaCakes118.exe	84
PID 1876 wrote to memory of 2132	1876	4.exe	86
PID 1876 wrote to memory of 2132	1876	4.exe	86
PID 1876 wrote to memory of 2132	1876	4.exe	86
PID 1876 wrote to memory of 2132	1876	4.exe	86
PID 1876 wrote to memory of 2132	1876	4.exe	86
PID 2132 wrote to memory of 3516	2132	4.exe	87
PID 2132 wrote to memory of 3516	2132	4.exe	87
PID 2132 wrote to memory of 3516	2132	4.exe	87
PID 2132 wrote to memory of 3516	2132	4.exe	87
PID 2132 wrote to memory of 3516	2132	4.exe	87
PID 3516 wrote to memory of 2748	3516	4.exe	89
PID 3516 wrote to memory of 2748	3516	4.exe	89
PID 3516 wrote to memory of 2748	3516	4.exe	89
PID 3516 wrote to memory of 2748	3516	4.exe	89
PID 3516 wrote to memory of 8	3516	4.exe	91
PID 3516 wrote to memory of 8	3516	4.exe	91
PID 3516 wrote to memory of 8	3516	4.exe	91
PID 3516 wrote to memory of 8	3516	4.exe	91

C:\Users\Admin\AppData\Local\Temp\4c73ab4f8d0fc1b498d666e87224d1dc_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4c73ab4f8d0fc1b498d666e87224d1dc_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2960
- C:\Extracted\4.exe
  "C:\Extracted\4.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1876
- - C:\Extracted\4.exe
    "C:\Extracted\4.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2132
  - - C:\Extracted\4.exe
      "C:\Extracted\4.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:3516
    - - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2748
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2748 -s 480
        6⤵
        Program crash
        
        PID:2860
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2748 -s 488
        6⤵
        Program crash
        
        PID:4896
    - - C:\Windows\SysWOW64\notepad.exe
        
        notepad.exe
        5⤵
        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:8
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 8 -s 972
        6⤵
        Program crash
        
        PID:972
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 8 -s 1000
        6⤵
        Program crash
        
        PID:1612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2748 -ip 2748
1⤵
PID:3944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2748 -ip 2748
1⤵
PID:4944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 8 -ip 8
1⤵
PID:4492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 8 -ip 8
1⤵
PID:5000

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

Query Registry

1

T1012

System Information Discovery

2

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:\Extracted\4.exe

Filesize
319KB

MD5
d988c1d8874d681d65ee9f58c23bddef

SHA1
3cbc85478a3b177ce7c2aff59b7fce752b41707d

SHA256
8f680bf217cf01be46f39a14009fbedf278337118f286fe41f7a9d286d0ecb9c

SHA512
5927fce62e08fecbdd7a75891645ebad091df123196c13ed3bdc5a2fcf3e99aedf23fbcdd73d94c13adbb69025bc20d58d45dce5822b6b6cefd5c011d44cd77d

Download Submit
C:\Users\Admin\AppData\Local\Temp\sfx.ini

Filesize
231B

MD5
b2122fb905776790659b668020f040ab

SHA1
0a7239cb8139f184809ebddcaee1b988debbc805

SHA256
c391bc6ca47c4164f8874f9d0bca00a5ce6bb64d248fee0891150acde4ceeffc

SHA512
7f5117b6ac3e13777b521fbf6fa3b88b5c9523d32762c0d9bc402d61dddb541ec9d93e7eabf93d04ebf6b93cabbbcf4f223345e7e160aa436da5cfe6d0432f16

Download Submit
memory/8-51-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/8-46-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/8-43-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1876-31-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1876-26-0x0000000002060000-0x000000000206D000-memory.dmp

Filesize
52KB

Download
memory/1876-25-0x0000000002060000-0x000000000206D000-memory.dmp

Filesize
52KB

Download
memory/2132-37-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/2132-30-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/2132-32-0x0000000000560000-0x000000000056D000-memory.dmp

Filesize
52KB

Download
memory/2132-34-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/2132-33-0x0000000000560000-0x000000000056D000-memory.dmp

Filesize
52KB

Download
memory/2132-27-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/2748-42-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/2748-48-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3516-38-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3516-40-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3516-35-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3516-41-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads