xtremerat | a9327ceaa13923fee12a3b076a04e919f9a77d01ea9a557ce097d9f05ef3943b

General

Target
JaffaCakes118_48612e1ed01ae1104a7a6f0bb33cef7b.exe
Size 73KB
Sample250115-afcmlatpb1
SHA256 a9327ceaa13923fee12a3b076a04e919f9a77d01ea9a557ce097d9f05ef3943b
MD5 48612e1ed01ae1104a7a6f0bb33cef7b
SHA1 1f2e888a65d8703325aadbec511b9ff7d4ad950a
SHA512 ec9f3cb356af6f7d2c9a0a8f3e0eaf034f7e094f7d1b9f59d0c651e0f947a2ebcae70a84fd20bb8b5778b2a6e5c75f7dabf258570b2e00a3b634c0309c4cc732
SSDEEP 1536:IqU/BXSo0qb51kKdo0kFL6oHhf2CukAv4HA0QvY2NkLAyc+/MuH/i8sS13lk6g:IqU/Bibqb5GKG0kV6WuCVFH36Y0kLAy+
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

w2w.no-ip.info

Signatures

Detect XtremeRAT payload 8 IoCs

resource	yara_rule
behavioral2/memory/4852-2-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/4852-3-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/1236-6-0x0000000000400000-0x000000000042E061-memory.dmp	family_xtremerat
behavioral2/memory/4852-4-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/4852-7-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/5004-8-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/4852-9-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/5004-10-0x0000000010000000-0x0000000010045000-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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1236 set thread context of 4852	1236	JaffaCakes118_48612e1ed01ae1104a7a6f0bb33cef7b.exe	82

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
4828	5004	WerFault.exe	83
540	5004	WerFault.exe	83

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	JaffaCakes118_48612e1ed01ae1104a7a6f0bb33cef7b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_48612e1ed01ae1104a7a6f0bb33cef7b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1236 wrote to memory of 4852	1236	JaffaCakes118_48612e1ed01ae1104a7a6f0bb33cef7b.exe	82
PID 1236 wrote to memory of 4852	1236	JaffaCakes118_48612e1ed01ae1104a7a6f0bb33cef7b.exe	82
PID 1236 wrote to memory of 4852	1236	JaffaCakes118_48612e1ed01ae1104a7a6f0bb33cef7b.exe	82
PID 1236 wrote to memory of 4852	1236	JaffaCakes118_48612e1ed01ae1104a7a6f0bb33cef7b.exe	82
PID 1236 wrote to memory of 4852	1236	JaffaCakes118_48612e1ed01ae1104a7a6f0bb33cef7b.exe	82
PID 4852 wrote to memory of 5004	4852	JaffaCakes118_48612e1ed01ae1104a7a6f0bb33cef7b.exe	83
PID 4852 wrote to memory of 5004	4852	JaffaCakes118_48612e1ed01ae1104a7a6f0bb33cef7b.exe	83
PID 4852 wrote to memory of 5004	4852	JaffaCakes118_48612e1ed01ae1104a7a6f0bb33cef7b.exe	83
PID 4852 wrote to memory of 5004	4852	JaffaCakes118_48612e1ed01ae1104a7a6f0bb33cef7b.exe	83
PID 4852 wrote to memory of 1244	4852	JaffaCakes118_48612e1ed01ae1104a7a6f0bb33cef7b.exe	84
PID 4852 wrote to memory of 1244	4852	JaffaCakes118_48612e1ed01ae1104a7a6f0bb33cef7b.exe	84
PID 4852 wrote to memory of 1244	4852	JaffaCakes118_48612e1ed01ae1104a7a6f0bb33cef7b.exe	84

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_48612e1ed01ae1104a7a6f0bb33cef7b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_48612e1ed01ae1104a7a6f0bb33cef7b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1236
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_48612e1ed01ae1104a7a6f0bb33cef7b.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_48612e1ed01ae1104a7a6f0bb33cef7b.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4852
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5004
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 480
      4⤵
      Program crash
      PID:4828
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 488
      4⤵
      Program crash
      PID:540
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:1244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 5004 -ip 5004
1⤵
PID:3096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 5004 -ip 5004
1⤵
PID:3204

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

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Downloads

memory/1236-0-0x0000000000400000-0x000000000042E061-memory.dmp

Download

memory/1236-1-0x000000000041C000-0x000000000042F000-memory.dmp

Download

memory/1236-6-0x0000000000400000-0x000000000042E061-memory.dmp

Download

memory/4852-2-0x0000000010000000-0x0000000010045000-memory.dmp

Download

memory/4852-3-0x0000000010000000-0x0000000010045000-memory.dmp

Download

memory/4852-4-0x0000000010000000-0x0000000010045000-memory.dmp

Download

memory/4852-7-0x0000000010000000-0x0000000010045000-memory.dmp

Download

memory/4852-9-0x0000000010000000-0x0000000010045000-memory.dmp

Download

memory/5004-8-0x0000000010000000-0x0000000010045000-memory.dmp

Download

memory/5004-10-0x0000000010000000-0x0000000010045000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads