xtremerat | 0afc58ce1749d2597068672e1776aea12e43ab12fa384d082d5b39ee26264aaa

General

Target

JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe
Size

661KB
MD5

aa4ccbd33bb874d95f3875b938cdda45
SHA1

1fe781405dd88e788d20df15fb7c286f20714786
SHA256

0afc58ce1749d2597068672e1776aea12e43ab12fa384d082d5b39ee26264aaa
SHA512

d00ec75e880f33890e38df5afc20c76e2acaca0091d398466e3016bda37d6758a84d7059ec37004f937b8c9f34e6282f8f4be6ffffda602a974a34a1e592164a
SSDEEP

12288:EJMs6OY0uW5wwyPImzQ/+afpnRyY9jjU82jLbQNNPdb5JvnmcTIHQqHYoZ4w5mMA:OMBz0u0wwuFQZfpcYRzCL8VlJuxHQ6Y3

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

sucamilla.no-ip.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral1/memory/4496-10-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/4496-12-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/6092-13-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/4496-14-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/6092-16-0x0000000010000000-0x000000001004D000-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 3952 set thread context of 4496	3952	JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe	85

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/4496-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/4496-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/4496-10-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/4496-12-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/6092-13-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/4496-14-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/6092-16-0x0000000010000000-0x000000001004D000-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
4048	6092	WerFault.exe	86
4612	6092	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	JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3952	JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe
3952	JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3952 wrote to memory of 4496	3952	JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe	85
PID 3952 wrote to memory of 4496	3952	JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe	85
PID 3952 wrote to memory of 4496	3952	JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe	85
PID 3952 wrote to memory of 4496	3952	JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe	85
PID 3952 wrote to memory of 4496	3952	JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe	85
PID 3952 wrote to memory of 4496	3952	JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe	85
PID 3952 wrote to memory of 4496	3952	JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe	85
PID 3952 wrote to memory of 4496	3952	JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe	85
PID 4496 wrote to memory of 6092	4496	JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe	86
PID 4496 wrote to memory of 6092	4496	JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe	86
PID 4496 wrote to memory of 6092	4496	JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe	86
PID 4496 wrote to memory of 6092	4496	JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe	86
PID 4496 wrote to memory of 3340	4496	JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe	87
PID 4496 wrote to memory of 3340	4496	JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe	87
PID 4496 wrote to memory of 3340	4496	JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3952
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_aa4ccbd33bb874d95f3875b938cdda45.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4496
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:6092
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 6092 -s 480
      4⤵
      Program crash
      PID:4048
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 6092 -s 488
      4⤵
      Program crash
      PID:4612
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:3340

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 6092 -ip 6092
1⤵
PID:3216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 6092 -ip 6092
1⤵
PID:3816

Network

MITRE ATT&CK Enterprise v16

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/3952-0-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/3952-2-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/3952-3-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/3952-11-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/4496-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4496-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4496-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4496-12-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4496-14-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/6092-13-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/6092-16-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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