xtremerat | 4f28eafc7bbad42bc28a56542325042229c575df9cace7e9e2e4616b00d05be3

General

Target

JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe
Size

47KB
MD5

1b7c7c94441e9e1612d03d458b711eb4
SHA1

0e0519e0e86975f22ba30095421ff2a9dcef2a69
SHA256

4f28eafc7bbad42bc28a56542325042229c575df9cace7e9e2e4616b00d05be3
SHA512

bb5ae5974ea1d8b711b3c2369c44b547bbe163105110626e209ab939f43331fd6f288d44d190f0e4b9af633dd35f7cd0ebb056f7e6d11fed1d42c9917b5560c6
SSDEEP

768:uka0LMj3W9NBwT6r2sesSLyoraW83TtmCcqqtfG32:ukb9NBwTF3LyormACpqBGm

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

depot07.dyndns-ip.com

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/3360-5-0x0000000010000000-0x0000000010049000-memory.dmp	family_xtremerat
behavioral2/memory/1696-7-0x0000000010000000-0x0000000010049000-memory.dmp	family_xtremerat
behavioral2/memory/3360-8-0x0000000010000000-0x0000000010049000-memory.dmp	family_xtremerat
behavioral2/memory/1696-9-0x0000000010000000-0x0000000010049000-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 2728 set thread context of 3360	2728	JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe	84

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3360-2-0x0000000010000000-0x0000000010049000-memory.dmp	upx
behavioral2/memory/3360-4-0x0000000010000000-0x0000000010049000-memory.dmp	upx
behavioral2/memory/3360-6-0x0000000010000000-0x0000000010049000-memory.dmp	upx
behavioral2/memory/3360-5-0x0000000010000000-0x0000000010049000-memory.dmp	upx
behavioral2/memory/1696-7-0x0000000010000000-0x0000000010049000-memory.dmp	upx
behavioral2/memory/3360-8-0x0000000010000000-0x0000000010049000-memory.dmp	upx
behavioral2/memory/1696-9-0x0000000010000000-0x0000000010049000-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
1148	1696	WerFault.exe	85
2448	1696	WerFault.exe	85

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_1b7c7c94441e9e1612d03d458b711eb4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2728	JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2728 wrote to memory of 3360	2728	JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe	84
PID 2728 wrote to memory of 3360	2728	JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe	84
PID 2728 wrote to memory of 3360	2728	JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe	84
PID 2728 wrote to memory of 3360	2728	JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe	84
PID 2728 wrote to memory of 3360	2728	JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe	84
PID 2728 wrote to memory of 3360	2728	JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe	84
PID 2728 wrote to memory of 3360	2728	JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe	84
PID 2728 wrote to memory of 3360	2728	JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe	84
PID 3360 wrote to memory of 1696	3360	JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe	85
PID 3360 wrote to memory of 1696	3360	JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe	85
PID 3360 wrote to memory of 1696	3360	JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe	85
PID 3360 wrote to memory of 1696	3360	JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe	85
PID 3360 wrote to memory of 2860	3360	JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe	86
PID 3360 wrote to memory of 2860	3360	JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe	86
PID 3360 wrote to memory of 2860	3360	JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2728
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b7c7c94441e9e1612d03d458b711eb4.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3360
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1696
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1696 -s 480
      4⤵
      Program crash
      PID:1148
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1696 -s 500
      4⤵
      Program crash
      PID:2448
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:2860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1696 -ip 1696
1⤵
PID:4860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1696 -ip 1696
1⤵
PID:4964

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/1696-7-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download
memory/1696-9-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download
memory/3360-2-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download
memory/3360-4-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download
memory/3360-6-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download
memory/3360-5-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download
memory/3360-8-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download

Analysis

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