xtremerat | 6728590d7973dc2250d7a0987db3e9a2c450defd656d3b55e2bd9bf4919d2a85

General

Target

JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe
Size

256KB
MD5

a5fb939213d6a2f5e096ecc0f6cec7d0
SHA1

c2fb6eec2f36055aca42b477a7130876b5682de4
SHA256

6728590d7973dc2250d7a0987db3e9a2c450defd656d3b55e2bd9bf4919d2a85
SHA512

357d7f1d256353d8ee4e0215e04deb3d7be83b5c90d3ab1fc2be02dd66dedda441af3fbb2f2eadd00a94c75ae3905455c61367348ee8810cc2f86eb305723349
SSDEEP

3072:L9rfiQUSKDtXxJGPztG1U9VhIHZ+U9yB+M1/y2tVjjPvmtgq7:hDc1U9VhIHZ+U9yoMc0jjPvmtg

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

ssaaiq.no-ip.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/2164-5-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2164-6-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3476-7-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2164-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3476-9-0x0000000010000000-0x000000001004D000-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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1852 set thread context of 2164	1852	JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe	83

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2164-2-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2164-4-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2164-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2164-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3476-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2164-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3476-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx

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
1872	3476	WerFault.exe	84
3692	3476	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	JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1852	JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1852 wrote to memory of 2164	1852	JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe	83
PID 1852 wrote to memory of 2164	1852	JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe	83
PID 1852 wrote to memory of 2164	1852	JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe	83
PID 1852 wrote to memory of 2164	1852	JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe	83
PID 1852 wrote to memory of 2164	1852	JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe	83
PID 1852 wrote to memory of 2164	1852	JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe	83
PID 1852 wrote to memory of 2164	1852	JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe	83
PID 1852 wrote to memory of 2164	1852	JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe	83
PID 2164 wrote to memory of 3476	2164	JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe	84
PID 2164 wrote to memory of 3476	2164	JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe	84
PID 2164 wrote to memory of 3476	2164	JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe	84
PID 2164 wrote to memory of 3476	2164	JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe	84
PID 2164 wrote to memory of 2516	2164	JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe	85
PID 2164 wrote to memory of 2516	2164	JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe	85
PID 2164 wrote to memory of 2516	2164	JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1852
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a5fb939213d6a2f5e096ecc0f6cec7d0.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2164
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3476
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3476 -s 484
      4⤵
      Program crash
      PID:1872
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3476 -s 492
      4⤵
      Program crash
      PID:3692
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:2516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3476 -ip 3476
1⤵
PID:3884

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3476 -ip 3476
1⤵
PID:3880

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/2164-2-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2164-4-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2164-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2164-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2164-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3476-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3476-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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