xtremerat | b3c7cb9e4244af48b38034b3ad4cf96dcc61f1433e7708f4011e549ea425d96e

General

Target

JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe
Size

558KB
MD5

218f9ec64968e5b8b316abe6287c4887
SHA1

a35cca916f795183c43b7cc472dbb51d7fd41b84
SHA256

b3c7cb9e4244af48b38034b3ad4cf96dcc61f1433e7708f4011e549ea425d96e
SHA512

005c40a60b4802e041ac9431ef15758eb88d01a5e1d91c9d0cdc1c4f156a51692385b230a54612706846f6d337fd78520ad5da18a3e8fe9098f9c5fdcf53c501
SSDEEP

12288:bcgL1j74QBb1pA0BH7whmh9roBX7SX//1ZGdXddP7SRP:Nx9BvA0BHroBX7SX//1ZGuR

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

shootersiker.no-ip.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/396-9-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/396-10-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/396-11-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1788-15-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1788-16-0x0000000010000000-0x000000001004A000-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

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4648 set thread context of 396	4648	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe	82

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
2456	1788	WerFault.exe	83
2780	1788	WerFault.exe	83

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_218f9ec64968e5b8b316abe6287c4887.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\oa1283903547g.skn	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\oa1283903547g.skn\ = c171acd613096e249b2c66fe725244aa	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4648	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4648 wrote to memory of 396	4648	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe	82
PID 4648 wrote to memory of 396	4648	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe	82
PID 4648 wrote to memory of 396	4648	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe	82
PID 4648 wrote to memory of 396	4648	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe	82
PID 4648 wrote to memory of 396	4648	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe	82
PID 4648 wrote to memory of 396	4648	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe	82
PID 4648 wrote to memory of 396	4648	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe	82
PID 4648 wrote to memory of 396	4648	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe	82
PID 4648 wrote to memory of 396	4648	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe	82
PID 4648 wrote to memory of 396	4648	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe	82
PID 4648 wrote to memory of 396	4648	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe	82
PID 4648 wrote to memory of 396	4648	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe	82
PID 4648 wrote to memory of 396	4648	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe	82
PID 396 wrote to memory of 1788	396	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe	83
PID 396 wrote to memory of 1788	396	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe	83
PID 396 wrote to memory of 1788	396	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe	83
PID 396 wrote to memory of 1788	396	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe	83
PID 396 wrote to memory of 2892	396	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe	84
PID 396 wrote to memory of 2892	396	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe	84
PID 396 wrote to memory of 2892	396	JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe	84

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe"
1⤵
- Checks BIOS information in registry
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4648
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_218f9ec64968e5b8b316abe6287c4887.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:396
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1788
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1788 -s 480
      4⤵
      Program crash
      PID:2456
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1788 -s 488
      4⤵
      Program crash
      PID:2780
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:2892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1788 -ip 1788
1⤵
PID:632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1788 -ip 1788
1⤵
PID:1628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/396-9-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/396-10-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/396-11-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/396-12-0x0000000000400000-0x00000000004A4000-memory.dmp

Filesize
656KB

Download
memory/1788-15-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1788-16-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/4648-2-0x0000000000400000-0x00000000004A4000-memory.dmp

Filesize
656KB

Download
memory/4648-5-0x0000000000401000-0x0000000000421000-memory.dmp

Filesize
128KB

Download
memory/4648-14-0x0000000000401000-0x0000000000421000-memory.dmp

Filesize
128KB

Download
memory/4648-13-0x0000000000400000-0x00000000004A4000-memory.dmp

Filesize
656KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads