xtremerat | e32e876c6af71b87d4a8de66c639fa6077dec93b210c1f6f2efffb5794bbc1b8

General

Target

f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe
Size

685KB
MD5

f2aa74f5d4ac35cd067022246655dfaf
SHA1

5e10b808b17403bb20f64442f74e31aefe882068
SHA256

e32e876c6af71b87d4a8de66c639fa6077dec93b210c1f6f2efffb5794bbc1b8
SHA512

7b9c06e90ba760427cfbb36bf93a35525d110f1b2117c08b0bf8fa73e9e4683afbc5e2327a0efb5227899cbcaeaf4f1e8977d89bf2d5dbe0732cc43b78616148
SSDEEP

12288:mQZuOWo7YNQN2YcKify3iC8ut0i1oQjUZbvFFF/Dr5uiunB+3Ygiv:mn4wQgsiK3AcIXFFf5uiuBJv

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

cuore.no-ip.org

cantante1.no-ip.org

Signatures

Detect XtremeRAT payload 8 IoCs

resource	yara_rule
behavioral2/memory/4472-9-0x0000000010000000-0x0000000010056000-memory.dmp	family_xtremerat
behavioral2/memory/4472-10-0x0000000010000000-0x0000000010056000-memory.dmp	family_xtremerat
behavioral2/memory/3780-13-0x0000000010000000-0x0000000010056000-memory.dmp	family_xtremerat
behavioral2/memory/4472-24-0x0000000010000000-0x0000000010056000-memory.dmp	family_xtremerat
behavioral2/memory/3780-26-0x0000000010000000-0x0000000010056000-memory.dmp	family_xtremerat
behavioral2/memory/1452-27-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3368-29-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1452-30-0x0000000010000000-0x000000001004D000-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

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	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
3368	448server.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3028 set thread context of 4472	3028	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe	84

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4472-6-0x0000000010000000-0x0000000010056000-memory.dmp	upx
behavioral2/memory/4472-8-0x0000000010000000-0x0000000010056000-memory.dmp	upx
behavioral2/memory/4472-9-0x0000000010000000-0x0000000010056000-memory.dmp	upx
behavioral2/memory/4472-10-0x0000000010000000-0x0000000010056000-memory.dmp	upx
behavioral2/memory/3780-13-0x0000000010000000-0x0000000010056000-memory.dmp	upx
behavioral2/files/0x000a000000023b6a-19.dat	upx
behavioral2/memory/3368-23-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4472-24-0x0000000010000000-0x0000000010056000-memory.dmp	upx
behavioral2/memory/3780-26-0x0000000010000000-0x0000000010056000-memory.dmp	upx
behavioral2/memory/1452-27-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3368-29-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1452-30-0x0000000010000000-0x000000001004D000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\448server.exe.exe	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe
File created	C:\Windows\448server.exe	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe

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
4880	3780	WerFault.exe	85
4316	3780	WerFault.exe	85
4048	1452	WerFault.exe	91
1192	1452	WerFault.exe	91

System Location Discovery: System Language Discovery 1 TTPs 5 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	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	448server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3028	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe
3028	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 4472	3028	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe	84
PID 3028 wrote to memory of 4472	3028	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe	84
PID 3028 wrote to memory of 4472	3028	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe	84
PID 3028 wrote to memory of 4472	3028	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe	84
PID 3028 wrote to memory of 4472	3028	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe	84
PID 3028 wrote to memory of 4472	3028	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe	84
PID 3028 wrote to memory of 4472	3028	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe	84
PID 3028 wrote to memory of 4472	3028	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe	84
PID 4472 wrote to memory of 3780	4472	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe	85
PID 4472 wrote to memory of 3780	4472	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe	85
PID 4472 wrote to memory of 3780	4472	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe	85
PID 4472 wrote to memory of 3780	4472	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe	85
PID 4472 wrote to memory of 1088	4472	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe	86
PID 4472 wrote to memory of 1088	4472	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe	86
PID 4472 wrote to memory of 1088	4472	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe	86
PID 4472 wrote to memory of 3368	4472	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe	89
PID 4472 wrote to memory of 3368	4472	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe	89
PID 4472 wrote to memory of 3368	4472	f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe	89
PID 3368 wrote to memory of 1452	3368	448server.exe	91
PID 3368 wrote to memory of 1452	3368	448server.exe	91
PID 3368 wrote to memory of 1452	3368	448server.exe	91
PID 3368 wrote to memory of 1452	3368	448server.exe	91
PID 3368 wrote to memory of 3196	3368	448server.exe	94
PID 3368 wrote to memory of 3196	3368	448server.exe	94
PID 3368 wrote to memory of 3196	3368	448server.exe	94

C:\Users\Admin\AppData\Local\Temp\f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Users\Admin\AppData\Local\Temp\f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\f2aa74f5d4ac35cd067022246655dfaf_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4472
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3780
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3780 -s 480
      4⤵
      Program crash
      PID:4880
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3780 -s 504
      4⤵
      Program crash
      PID:4316
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:1088
- - C:\Windows\448server.exe
    "C:\Windows\448server.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3368
  - - C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      4⤵
      System Location Discovery: System Language Discovery
      PID:1452
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1452 -s 484
        5⤵
        Program crash
        
        PID:4048
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1452 -s 504
        5⤵
        Program crash
        
        PID:1192
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
      4⤵
      PID:3196

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3780 -ip 3780
1⤵
PID:5000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3780 -ip 3780
1⤵
PID:3720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1452 -ip 1452
1⤵
PID:4460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1452 -ip 1452
1⤵
PID:3132

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

Replay Monitor

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Downloads

C:\Windows\448server.exe

Filesize
33KB

MD5
7f07af2d38bdf64426b72f1ee8ba8249

SHA1
2be94a223781dee9eb893a4dd6c1e1f97ce7e5d7

SHA256
c8b7f993b82a699246b9a3ec2a53add2ff348e22b699bf40787a27f301316ff0

SHA512
e78d76c2c2191671168299e70628e73dbf6298d98788df0f79488376798dbd5d7da0c8c9517fc5ed0eb2ff172ea9fb578f3873cbe41a28dceb3ca68244cd33cc

Download Submit
memory/1452-30-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1452-27-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3028-0-0x0000000000400000-0x00000000007B0000-memory.dmp

Filesize
3.7MB

Download
memory/3028-12-0x0000000000400000-0x00000000007B0000-memory.dmp

Filesize
3.7MB

Download
memory/3368-29-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3368-23-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3780-26-0x0000000010000000-0x0000000010056000-memory.dmp

Filesize
344KB

Download
memory/3780-13-0x0000000010000000-0x0000000010056000-memory.dmp

Filesize
344KB

Download
memory/4472-9-0x0000000010000000-0x0000000010056000-memory.dmp

Filesize
344KB

Download
memory/4472-24-0x0000000010000000-0x0000000010056000-memory.dmp

Filesize
344KB

Download
memory/4472-10-0x0000000010000000-0x0000000010056000-memory.dmp

Filesize
344KB

Download
memory/4472-8-0x0000000010000000-0x0000000010056000-memory.dmp

Filesize
344KB

Download
memory/4472-6-0x0000000010000000-0x0000000010056000-memory.dmp

Filesize
344KB

Download

Analysis

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