xtremerat | 0ee2fde63dc0b32aed61c62991093845e10431eb41c2ecf68514a6f35572f714

General

Target

JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe
Size

81KB
MD5

622d4b985abc268a24beb5d00e3aa445
SHA1

38a8c9d49174822b9e7e0ac9f3ce34f12b6a5e3f
SHA256

0ee2fde63dc0b32aed61c62991093845e10431eb41c2ecf68514a6f35572f714
SHA512

c734318eacf69ddabde1b78512a325f5fdd30c3d969f5e2bfb929b7b16dc3b067a77bfccf6340fcbccdd9f5258aebf1020d463497f704bbc7ad05b04346f5e3a
SSDEEP

1536:hG2EnTramCVTJ10e9yhVup6fl3PnWUw0DhnPSbtvcYSjo:hynvBCVTJ10ey0p6d3fWUwaiVSU

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/2492-7-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/2492-8-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/3660-10-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/2492-11-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/3660-12-0x0000000010000000-0x0000000010048000-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 3448 set thread context of 2492	3448	JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe	85

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2492-3-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/2492-6-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/2492-7-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/2492-8-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/3660-10-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/2492-11-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/3660-12-0x0000000010000000-0x0000000010048000-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
1588	3660	WerFault.exe	86
5092	3660	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3448	JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3448 wrote to memory of 2492	3448	JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe	85
PID 3448 wrote to memory of 2492	3448	JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe	85
PID 3448 wrote to memory of 2492	3448	JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe	85
PID 3448 wrote to memory of 2492	3448	JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe	85
PID 3448 wrote to memory of 2492	3448	JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe	85
PID 3448 wrote to memory of 2492	3448	JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe	85
PID 3448 wrote to memory of 2492	3448	JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe	85
PID 3448 wrote to memory of 2492	3448	JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe	85
PID 2492 wrote to memory of 3660	2492	JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe	86
PID 2492 wrote to memory of 3660	2492	JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe	86
PID 2492 wrote to memory of 3660	2492	JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe	86
PID 2492 wrote to memory of 3660	2492	JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe	86
PID 2492 wrote to memory of 2996	2492	JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe	87
PID 2492 wrote to memory of 2996	2492	JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe	87
PID 2492 wrote to memory of 2996	2492	JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3448
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_622d4b985abc268a24beb5d00e3aa445.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2492
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3660
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3660 -s 480
      4⤵
      Program crash
      PID:1588
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3660 -s 488
      4⤵
      Program crash
      PID:5092
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:2996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3660 -ip 3660
1⤵
PID:4888

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 3660 -ip 3660
1⤵
PID:3024

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/2492-3-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2492-6-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2492-7-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2492-8-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2492-11-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/3448-0-0x0000000075462000-0x0000000075463000-memory.dmp

Filesize
4KB

Download
memory/3448-1-0x0000000075460000-0x0000000075A11000-memory.dmp

Filesize
5.7MB

Download
memory/3448-2-0x0000000075460000-0x0000000075A11000-memory.dmp

Filesize
5.7MB

Download
memory/3448-9-0x0000000075460000-0x0000000075A11000-memory.dmp

Filesize
5.7MB

Download
memory/3660-10-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/3660-12-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download

Analysis

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