xtremerat | affb4518c3cf5b774ce605ab3c144fd10c7c277801e9f6231bfd7a89cfb805d8

General

Target

JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe
Size

81KB
MD5

789192604cc7cde75aeeb7af97d480cb
SHA1

2d0c60463c4a2ac7826bd10471301fbf1cefb0be
SHA256

affb4518c3cf5b774ce605ab3c144fd10c7c277801e9f6231bfd7a89cfb805d8
SHA512

a71db7edb10ffb07adef68fe51b49c091d9c1f25cf39fe578dc3caaa8480b1b60625dd79cec970b3bee0cde8d87ae97b0ecc1378de4635d82da8911168a39c3f
SSDEEP

1536:mG2EnTramCVTJ10e9yhVuNThKYayaGoNrE2aGINvku5SBtUG5:mynvBCVTJ10ey0NThKYSpNQGINvkuxG5

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/4872-7-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/4872-8-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/4824-10-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/4872-11-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/4824-12-0x0000000010000000-0x0000000010048000-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 3132 set thread context of 4872	3132	JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe	89

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4872-3-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4872-6-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4872-7-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4872-8-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4824-10-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4872-11-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4824-12-0x0000000010000000-0x0000000010048000-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
4900	4824	WerFault.exe	90
2448	4824	WerFault.exe	90

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_789192604cc7cde75aeeb7af97d480cb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3132	JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3132 wrote to memory of 4872	3132	JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe	89
PID 3132 wrote to memory of 4872	3132	JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe	89
PID 3132 wrote to memory of 4872	3132	JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe	89
PID 3132 wrote to memory of 4872	3132	JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe	89
PID 3132 wrote to memory of 4872	3132	JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe	89
PID 3132 wrote to memory of 4872	3132	JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe	89
PID 3132 wrote to memory of 4872	3132	JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe	89
PID 3132 wrote to memory of 4872	3132	JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe	89
PID 4872 wrote to memory of 4824	4872	JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe	90
PID 4872 wrote to memory of 4824	4872	JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe	90
PID 4872 wrote to memory of 4824	4872	JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe	90
PID 4872 wrote to memory of 4824	4872	JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe	90
PID 4872 wrote to memory of 4120	4872	JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe	91
PID 4872 wrote to memory of 4120	4872	JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe	91
PID 4872 wrote to memory of 4120	4872	JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe	91

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3132
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_789192604cc7cde75aeeb7af97d480cb.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4872
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4824
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4824 -s 484
      4⤵
      Program crash
      PID:4900
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4824 -s 492
      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:4120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4824 -ip 4824
1⤵
PID:3872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4824 -ip 4824
1⤵
PID:2208

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/3132-0-0x0000000074E92000-0x0000000074E93000-memory.dmp

Filesize
4KB

Download
memory/3132-1-0x0000000074E90000-0x0000000075441000-memory.dmp

Filesize
5.7MB

Download
memory/3132-2-0x0000000074E90000-0x0000000075441000-memory.dmp

Filesize
5.7MB

Download
memory/3132-9-0x0000000074E90000-0x0000000075441000-memory.dmp

Filesize
5.7MB

Download
memory/4824-10-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4824-12-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4872-3-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4872-6-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4872-7-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4872-8-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4872-11-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download

Analysis

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