xtremerat | e216d13c22ac5e2cbc309779c460f2dbf19ff916946d9c8d65506bf5bc6ad355

General

Target

JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe
Size

84KB
MD5

027c993ac8e604bc9450445c5954dfd7
SHA1

c2eb55c7459507eb2366344b0c016e9fc9cfb2b3
SHA256

e216d13c22ac5e2cbc309779c460f2dbf19ff916946d9c8d65506bf5bc6ad355
SHA512

d2a664f06826c9d7da9495dd6444bf5e828a8b6ff4b9d33d271b6179c8ff69c2bfa61cb72d515c730f8ccca934ea1333fb785b05f3d7acad5c6860bdc488a734
SSDEEP

1536:Ss/psfKLveiUj+UgapkUbl+Wf1liDzssei13OzJbYhXbwJMTy:r/cyelTpkUbQWHyiiFUSTy

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

franco1.no-ip.org

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/3560-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2152-11-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3560-12-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2152-13-0x0000000010000000-0x000000001004D000-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 2500 set thread context of 3560	2500	JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe	82

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3560-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3560-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3560-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3560-10-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2152-11-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3560-12-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2152-13-0x0000000010000000-0x000000001004D000-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
4704	2152	WerFault.exe	83
2224	2152	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_027c993ac8e604bc9450445c5954dfd7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2500	JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 3560	2500	JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe	82
PID 2500 wrote to memory of 3560	2500	JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe	82
PID 2500 wrote to memory of 3560	2500	JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe	82
PID 2500 wrote to memory of 3560	2500	JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe	82
PID 2500 wrote to memory of 3560	2500	JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe	82
PID 2500 wrote to memory of 3560	2500	JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe	82
PID 2500 wrote to memory of 3560	2500	JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe	82
PID 2500 wrote to memory of 3560	2500	JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe	82
PID 3560 wrote to memory of 2152	3560	JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe	83
PID 3560 wrote to memory of 2152	3560	JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe	83
PID 3560 wrote to memory of 2152	3560	JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe	83
PID 3560 wrote to memory of 2152	3560	JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe	83
PID 3560 wrote to memory of 3044	3560	JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe	84
PID 3560 wrote to memory of 3044	3560	JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe	84
PID 3560 wrote to memory of 3044	3560	JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe	84

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2500
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_027c993ac8e604bc9450445c5954dfd7.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3560
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2152
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2152 -s 480
      4⤵
      Program crash
      PID:4704
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2152 -s 504
      4⤵
      Program crash
      PID:2224
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:3044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 2152 -ip 2152
1⤵
PID:3540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2152 -ip 2152
1⤵
PID:1984

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/2152-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2152-13-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2500-0-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/2500-1-0x00000000001C0000-0x00000000001C3000-memory.dmp

Filesize
12KB

Download
memory/2500-8-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/3560-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3560-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3560-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3560-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3560-12-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing