xtremerat | 6a1555e7cad7a4890402c1fb2c51df8d8cbf6e1812a069fdac742ae20e335e95

General

Target

3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe
Size

126KB
MD5

3fa521e5e581834882e9b4042a5a4cf9
SHA1

4f736dff37aa04dff031cadf30e617a9df1c38d5
SHA256

6a1555e7cad7a4890402c1fb2c51df8d8cbf6e1812a069fdac742ae20e335e95
SHA512

5e43a6e53fe411bc2f5de30c6b878306f914370fe1f28162b68663beb28416ba3471022e9e819fabffa060c64d5d20a828862a8b1435d2940669c175ef5f70cb
SSDEEP

3072:TYZoyJ6d1AoZ1f0HDfvkDxacIj1D9JpqHYgPTfSD5NAimiph:0xiZGHbsDI1lcYgPmy

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

pokerking.dyndns.biz

Signatures

Detect XtremeRAT payload 7 IoCs

resource	yara_rule
behavioral2/memory/3308-3-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3308-4-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3308-6-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3308-8-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1136-10-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3308-11-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1136-12-0x0000000010000000-0x000000001004A000-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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4468 set thread context of 3308	4468	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe	85

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
5112	1136	WerFault.exe	86
768	1136	WerFault.exe	86

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	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4468 wrote to memory of 3308	4468	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe	85
PID 4468 wrote to memory of 3308	4468	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe	85
PID 4468 wrote to memory of 3308	4468	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe	85
PID 4468 wrote to memory of 3308	4468	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe	85
PID 4468 wrote to memory of 3308	4468	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe	85
PID 4468 wrote to memory of 3308	4468	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe	85
PID 4468 wrote to memory of 3308	4468	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe	85
PID 4468 wrote to memory of 3308	4468	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe	85
PID 4468 wrote to memory of 3308	4468	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe	85
PID 4468 wrote to memory of 3308	4468	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe	85
PID 4468 wrote to memory of 3308	4468	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe	85
PID 4468 wrote to memory of 3308	4468	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe	85
PID 4468 wrote to memory of 3308	4468	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe	85
PID 3308 wrote to memory of 1136	3308	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe	86
PID 3308 wrote to memory of 1136	3308	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe	86
PID 3308 wrote to memory of 1136	3308	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe	86
PID 3308 wrote to memory of 1136	3308	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe	86
PID 3308 wrote to memory of 4856	3308	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe	88
PID 3308 wrote to memory of 4856	3308	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe	88
PID 3308 wrote to memory of 4856	3308	3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe	88

C:\Users\Admin\AppData\Local\Temp\3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4468
- C:\Users\Admin\AppData\Local\Temp\3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\3fa521e5e581834882e9b4042a5a4cf9_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3308
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1136
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1136 -s 480
      4⤵
      Program crash
      PID:5112
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1136 -s 500
      4⤵
      Program crash
      PID:768
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:4856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1136 -ip 1136
1⤵
PID:3244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1136 -ip 1136
1⤵
PID:4196

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

Replay Monitor

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Downloads

memory/1136-10-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1136-12-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3308-3-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3308-4-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3308-6-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3308-8-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3308-11-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4468-0-0x00000000747E2000-0x00000000747E3000-memory.dmp

Filesize
4KB

Download
memory/4468-1-0x00000000747E0000-0x0000000074D91000-memory.dmp

Filesize
5.7MB

Download
memory/4468-2-0x00000000747E0000-0x0000000074D91000-memory.dmp

Filesize
5.7MB

Download
memory/4468-7-0x00000000747E0000-0x0000000074D91000-memory.dmp

Filesize
5.7MB

Download
memory/4468-9-0x00000000747E0000-0x0000000074D91000-memory.dmp

Filesize
5.7MB

Download

Analysis

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