xtremerat | f62cce747b4d393e3d2ab03f14ec4412f882333da5cce7a7bb368f4495cb8c19

General

Target

d7a32826a8931724221b193e9f448b04_JaffaCakes118.exe
Size

1.0MB
MD5

d7a32826a8931724221b193e9f448b04
SHA1

a284d56bcfb9f82177deaed765bda78d260f5d47
SHA256

f62cce747b4d393e3d2ab03f14ec4412f882333da5cce7a7bb368f4495cb8c19
SHA512

8709b4f9083cbd8b899b97ac12498d1ffd12081bfbe368073de397dfa861357b8b1531a7cd6a16914fd2eeb35eab7b6d37bdc01cad8be90dc36b82dea4cb4d11
SSDEEP

24576:OPze+0Pze+moJmnNg4XVMD0nDImeKvThFFmB5d:ize7zeJoJmNfND9eK7had

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

neuromante.no-ip.org

ʨneuromante.no-ip.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/4200-0-0x0000000010000000-0x000000001013F000-memory.dmp	family_xtremerat
behavioral2/files/0x0007000000023cb9-6.dat	family_xtremerat
behavioral2/memory/4560-10-0x0000000010000000-0x000000001013F000-memory.dmp	family_xtremerat
behavioral2/memory/4200-12-0x0000000010000000-0x000000001013F000-memory.dmp	family_xtremerat
behavioral2/memory/2856-15-0x0000000010000000-0x00000000100DF000-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	d7a32826a8931724221b193e9f448b04_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
2856	16server.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\16server.exe.exe	d7a32826a8931724221b193e9f448b04_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\16server.exe	d7a32826a8931724221b193e9f448b04_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\156Jasmine.jpg.exe	16server.exe
File created	C:\Windows\SysWOW64\156Jasmine.jpg	16server.exe

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
1628	4200	WerFault.exe	84
2340	4200	WerFault.exe	84

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	16server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d7a32826a8931724221b193e9f448b04_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4560 wrote to memory of 4200	4560	d7a32826a8931724221b193e9f448b04_JaffaCakes118.exe	84
PID 4560 wrote to memory of 4200	4560	d7a32826a8931724221b193e9f448b04_JaffaCakes118.exe	84
PID 4560 wrote to memory of 4200	4560	d7a32826a8931724221b193e9f448b04_JaffaCakes118.exe	84
PID 4560 wrote to memory of 4200	4560	d7a32826a8931724221b193e9f448b04_JaffaCakes118.exe	84
PID 4560 wrote to memory of 4132	4560	d7a32826a8931724221b193e9f448b04_JaffaCakes118.exe	85
PID 4560 wrote to memory of 4132	4560	d7a32826a8931724221b193e9f448b04_JaffaCakes118.exe	85
PID 4560 wrote to memory of 4132	4560	d7a32826a8931724221b193e9f448b04_JaffaCakes118.exe	85
PID 4560 wrote to memory of 2856	4560	d7a32826a8931724221b193e9f448b04_JaffaCakes118.exe	90
PID 4560 wrote to memory of 2856	4560	d7a32826a8931724221b193e9f448b04_JaffaCakes118.exe	90
PID 4560 wrote to memory of 2856	4560	d7a32826a8931724221b193e9f448b04_JaffaCakes118.exe	90
PID 2856 wrote to memory of 928	2856	16server.exe	92
PID 2856 wrote to memory of 928	2856	16server.exe	92
PID 2856 wrote to memory of 928	2856	16server.exe	92

C:\Users\Admin\AppData\Local\Temp\d7a32826a8931724221b193e9f448b04_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d7a32826a8931724221b193e9f448b04_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4560
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4200
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4200 -s 488
    3⤵
    - Program crash
    PID:1628
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4200 -s 496
    3⤵
    - Program crash
    PID:2340
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:4132
- C:\Windows\SysWOW64\16server.exe
  "C:\Windows\system32\16server.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2856
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4200 -ip 4200
1⤵
PID:3208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4200 -ip 4200
1⤵
PID:404

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\SysWOW64\16server.exe

Filesize
661KB

MD5
26425b2fbb73627e02a1ea7f095eab7d

SHA1
929b1d21ed7976f274df9520a0d53210969176b3

SHA256
ce463e3d32f919e7c9870223fccde542d9f198d012a7dcb5738e75017fab59c1

SHA512
ff3cc950d1c335395edb3f68577381c1153d24841136b1c9d828c742d02d47ed46cce8a7244bba030da1e464ac400baa0c53d6c32d99bf0a8fc82ba979cb332d

Download Submit
memory/2856-15-0x0000000010000000-0x00000000100DF000-memory.dmp

Filesize
892KB

Download
memory/4200-0-0x0000000010000000-0x000000001013F000-memory.dmp

Filesize
1.2MB

Download
memory/4200-12-0x0000000010000000-0x000000001013F000-memory.dmp

Filesize
1.2MB

Download
memory/4560-10-0x0000000010000000-0x000000001013F000-memory.dmp

Filesize
1.2MB

Download

Analysis

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