xtremerat | 396f69cafe1d18c1379cf6fcebb934edfeb33514f9508bc1ccf8dff96d3a9f4a

General

Target

JaffaCakes118_0d4f0146dac7bb66d30117264859d495.exe
Size

89KB
MD5

0d4f0146dac7bb66d30117264859d495
SHA1

71c9ef78c66e478d43b79dcc15bbe3c35c5b5799
SHA256

396f69cafe1d18c1379cf6fcebb934edfeb33514f9508bc1ccf8dff96d3a9f4a
SHA512

f03939fba71741e7e4884efa6757e87c9a288b13e8ba581d0bec337b3c5d1f81231e577496a68c8d0e93edc178e2f00f7e38abe78c4c9efd87fbad69a4c64de4
SSDEEP

1536:XAw8GW8eCdVWQu6VqkQDw6S8aQrNfMiN/xhqdi8xIdGB1aVrNl6i/PQ:XAtwfNKDwpQrNfMiNyi8+dGB1aVrNjP

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

securitywindows.3utilities.com

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/1640-3-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3552-5-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1640-6-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3552-7-0x0000000010000000-0x000000001004A000-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 1524 set thread context of 1640	1524	JaffaCakes118_0d4f0146dac7bb66d30117264859d495.exe	83

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1640-0-0x0000000010000000-0x000000001004A000-memory.dmp	upx
behavioral2/memory/1640-2-0x0000000010000000-0x000000001004A000-memory.dmp	upx
behavioral2/memory/1640-3-0x0000000010000000-0x000000001004A000-memory.dmp	upx
behavioral2/memory/1640-4-0x0000000010000000-0x000000001004A000-memory.dmp	upx
behavioral2/memory/3552-5-0x0000000010000000-0x000000001004A000-memory.dmp	upx
behavioral2/memory/1640-6-0x0000000010000000-0x000000001004A000-memory.dmp	upx
behavioral2/memory/3552-7-0x0000000010000000-0x000000001004A000-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
4044	3552	WerFault.exe	84
1824	3552	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_0d4f0146dac7bb66d30117264859d495.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0d4f0146dac7bb66d30117264859d495.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1524 wrote to memory of 1640	1524	JaffaCakes118_0d4f0146dac7bb66d30117264859d495.exe	83
PID 1524 wrote to memory of 1640	1524	JaffaCakes118_0d4f0146dac7bb66d30117264859d495.exe	83
PID 1524 wrote to memory of 1640	1524	JaffaCakes118_0d4f0146dac7bb66d30117264859d495.exe	83
PID 1524 wrote to memory of 1640	1524	JaffaCakes118_0d4f0146dac7bb66d30117264859d495.exe	83
PID 1524 wrote to memory of 1640	1524	JaffaCakes118_0d4f0146dac7bb66d30117264859d495.exe	83
PID 1524 wrote to memory of 1640	1524	JaffaCakes118_0d4f0146dac7bb66d30117264859d495.exe	83
PID 1524 wrote to memory of 1640	1524	JaffaCakes118_0d4f0146dac7bb66d30117264859d495.exe	83
PID 1524 wrote to memory of 1640	1524	JaffaCakes118_0d4f0146dac7bb66d30117264859d495.exe	83
PID 1640 wrote to memory of 3552	1640	JaffaCakes118_0d4f0146dac7bb66d30117264859d495.exe	84
PID 1640 wrote to memory of 3552	1640	JaffaCakes118_0d4f0146dac7bb66d30117264859d495.exe	84
PID 1640 wrote to memory of 3552	1640	JaffaCakes118_0d4f0146dac7bb66d30117264859d495.exe	84
PID 1640 wrote to memory of 3552	1640	JaffaCakes118_0d4f0146dac7bb66d30117264859d495.exe	84
PID 1640 wrote to memory of 4584	1640	JaffaCakes118_0d4f0146dac7bb66d30117264859d495.exe	85
PID 1640 wrote to memory of 4584	1640	JaffaCakes118_0d4f0146dac7bb66d30117264859d495.exe	85
PID 1640 wrote to memory of 4584	1640	JaffaCakes118_0d4f0146dac7bb66d30117264859d495.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d4f0146dac7bb66d30117264859d495.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d4f0146dac7bb66d30117264859d495.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1524
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d4f0146dac7bb66d30117264859d495.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0d4f0146dac7bb66d30117264859d495.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1640
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3552
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 496
      4⤵
      Program crash
      PID:4044
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3552 -s 504
      4⤵
      Program crash
      PID:1824
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:4584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3552 -ip 3552
1⤵
PID:1416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3552 -ip 3552
1⤵
PID:2292

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

Loading Replay Monitor...

Downloads

memory/1640-0-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1640-2-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1640-3-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1640-4-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1640-6-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3552-5-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3552-7-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download

Analysis

Sharing