xtremerat | f566ebe5b24d23958dedd568f084188819d2b873f5a2e769dfe63a791983eea5

General

Target

JaffaCakes118_8654d8fa16db286eb4b52d6b6120bbab.exe
Size

327KB
MD5

8654d8fa16db286eb4b52d6b6120bbab
SHA1

18ae3877c5a1351cde54147233aaf0be1cb35253
SHA256

f566ebe5b24d23958dedd568f084188819d2b873f5a2e769dfe63a791983eea5
SHA512

3cdeb91b346de70c431ed90c0946f7bb54d0f3641053066b2a0614bcdd8775157c24247f5e1cb86af7ae5b5b1776eeca08bc296c8e47245e8d5ec9c2d6f2e964
SSDEEP

6144:Q1db49+rEg024fpLZazEjvE/rbay19tSt4bO2BaDmeBJe59kIkzxMJR:QjkArEN249AyE/rbaMct4bO2/V09MJR

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

achkar.no-ip.biz

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/5140-14-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3904-15-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/5140-17-0x0000000010000000-0x000000001004D000-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

Executes dropped EXE 1 IoCs

pid	Process
3904	server.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/2608-13-0x0000000000400000-0x00000000004C1000-memory.dmp	autoit_exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2608-0-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/files/0x00090000000227aa-5.dat	upx
behavioral2/memory/3904-10-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2608-13-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/5140-14-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3904-15-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/5140-17-0x0000000010000000-0x000000001004D000-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
5316	5140	WerFault.exe	89
5792	5140	WerFault.exe	89

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_8654d8fa16db286eb4b52d6b6120bbab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2608 wrote to memory of 3904	2608	JaffaCakes118_8654d8fa16db286eb4b52d6b6120bbab.exe	87
PID 2608 wrote to memory of 3904	2608	JaffaCakes118_8654d8fa16db286eb4b52d6b6120bbab.exe	87
PID 2608 wrote to memory of 3904	2608	JaffaCakes118_8654d8fa16db286eb4b52d6b6120bbab.exe	87
PID 3904 wrote to memory of 5140	3904	server.exe	89
PID 3904 wrote to memory of 5140	3904	server.exe	89
PID 3904 wrote to memory of 5140	3904	server.exe	89
PID 3904 wrote to memory of 5140	3904	server.exe	89
PID 3904 wrote to memory of 5136	3904	server.exe	90
PID 3904 wrote to memory of 5136	3904	server.exe	90
PID 3904 wrote to memory of 5136	3904	server.exe	90

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8654d8fa16db286eb4b52d6b6120bbab.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8654d8fa16db286eb4b52d6b6120bbab.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2608
- C:\Users\Admin\AppData\Local\Temp\server.exe
  C:\Users\Admin\AppData\Local\Temp/server.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3904
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5140
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5140 -s 480
      4⤵
      Program crash
      PID:5316
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5140 -s 488
      4⤵
      Program crash
      PID:5792
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:5136

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5140 -ip 5140
1⤵
PID:1824

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 5140 -ip 5140
1⤵
PID:5388

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

C:\Users\Admin\AppData\Local\Temp\aut6959.tmp

Filesize
33KB

MD5
bb582905c2bf1a555207710f67f5a08f

SHA1
62700b9245bde91fbeb085669be0a78b24abc2c3

SHA256
c6ce05b889e21be0f82f046e36656244f9cc42e3a482e69d9dfc9244742e2c01

SHA512
9e3dbc54084c6526e988e578f821afe150a1b084ece6ac673514c53f4c2bd85afd15a146f06b29d0bf6eb7460b34e2556a171e4606a5c13ec50ce5686f4c3469

Download Submit
memory/2608-0-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2608-13-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3904-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3904-15-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/5140-14-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/5140-17-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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