xtremerat | 089e405fae3c6747142d867983fe57587826fbc727ea23e452db1a1a3a17f7f7

General

Target

JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe
Size

500KB
MD5

19b55b49eb63d0d65a0f80145f9eaadc
SHA1

69d0944d5730a1e4c6ba462bea7159da84b603ed
SHA256

089e405fae3c6747142d867983fe57587826fbc727ea23e452db1a1a3a17f7f7
SHA512

5e09397606a8e0ade6608bf0f440a2e2a1aa70d946b539458f250d64c21065af6c03ed0fb248fd4266d306d08fdd9b2c60170b526bec08632aaeb39942252d1f
SSDEEP

12288:kFumuLM+DqWaSMB9yVtKAyEHohkyNA87Nhg:kFaY+DqWaSMB9ySAyhkyDRO

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

testbzr.no-ip.biz

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/2588-5-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4192-7-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2588-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4192-9-0x0000000010000000-0x000000001004D000-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 4236 set thread context of 2588	4236	JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe	83

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2588-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2588-4-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2588-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2588-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4192-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2588-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4192-9-0x0000000010000000-0x000000001004D000-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
1936	4192	WerFault.exe	84
1036	4192	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_19b55b49eb63d0d65a0f80145f9eaadc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4236	JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4236 wrote to memory of 2588	4236	JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe	83
PID 4236 wrote to memory of 2588	4236	JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe	83
PID 4236 wrote to memory of 2588	4236	JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe	83
PID 4236 wrote to memory of 2588	4236	JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe	83
PID 4236 wrote to memory of 2588	4236	JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe	83
PID 4236 wrote to memory of 2588	4236	JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe	83
PID 4236 wrote to memory of 2588	4236	JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe	83
PID 4236 wrote to memory of 2588	4236	JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe	83
PID 2588 wrote to memory of 4192	2588	JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe	84
PID 2588 wrote to memory of 4192	2588	JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe	84
PID 2588 wrote to memory of 4192	2588	JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe	84
PID 2588 wrote to memory of 4192	2588	JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe	84
PID 2588 wrote to memory of 1724	2588	JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe	85
PID 2588 wrote to memory of 1724	2588	JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe	85
PID 2588 wrote to memory of 1724	2588	JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4236
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_19b55b49eb63d0d65a0f80145f9eaadc.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2588
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4192
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4192 -s 484
      4⤵
      Program crash
      PID:1936
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4192 -s 500
      4⤵
      Program crash
      PID:1036
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:1724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4192 -ip 4192
1⤵
PID:3496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4192 -ip 4192
1⤵
PID:232

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/2588-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2588-4-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2588-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2588-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2588-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4192-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4192-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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