xtremerat | abee552447a9f6e82cc188f470ad39411f836cfe7db9ca16d9507a2aae31b1e0

General

Target

502809355ff063d0faa34edcf6a29924_JaffaCakes118.exe
Size

244KB
MD5

502809355ff063d0faa34edcf6a29924
SHA1

249a4d771d7fac31cc6d9f84b4eb781159b77202
SHA256

abee552447a9f6e82cc188f470ad39411f836cfe7db9ca16d9507a2aae31b1e0
SHA512

05c2e04a0173a1c28ce78cf645c1debc833244ea6fd7ef2faf025937053eb5cfd0a679f1287a0d9d661f0cc75cfc3bb0b74077445756340cbef831b4f1f376d6
SSDEEP

3072:eU4jfiQD0JI7/Fpuni41hdskPGvv45nG0N6C6SnZ1BZeI5n:o7v45G0N6CVZ1BcI5

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

kholasa.no-ip.biz

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/4468-5-0x0000000010000000-0x000000001004B000-memory.dmp	family_xtremerat
behavioral2/memory/2064-7-0x0000000010000000-0x000000001004B000-memory.dmp	family_xtremerat
behavioral2/memory/4468-8-0x0000000010000000-0x000000001004B000-memory.dmp	family_xtremerat
behavioral2/memory/2064-10-0x0000000010000000-0x000000001004B000-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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 744 set thread context of 4468	744	502809355ff063d0faa34edcf6a29924_JaffaCakes118.exe	84

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4468-2-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/4468-4-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/4468-5-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/4468-6-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/2064-7-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/4468-8-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/2064-10-0x0000000010000000-0x000000001004B000-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
456	2064	WerFault.exe	86
1464	2064	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	502809355ff063d0faa34edcf6a29924_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	502809355ff063d0faa34edcf6a29924_JaffaCakes118.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
744	502809355ff063d0faa34edcf6a29924_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 744 wrote to memory of 4468	744	502809355ff063d0faa34edcf6a29924_JaffaCakes118.exe	84
PID 744 wrote to memory of 4468	744	502809355ff063d0faa34edcf6a29924_JaffaCakes118.exe	84
PID 744 wrote to memory of 4468	744	502809355ff063d0faa34edcf6a29924_JaffaCakes118.exe	84
PID 744 wrote to memory of 4468	744	502809355ff063d0faa34edcf6a29924_JaffaCakes118.exe	84
PID 744 wrote to memory of 4468	744	502809355ff063d0faa34edcf6a29924_JaffaCakes118.exe	84
PID 744 wrote to memory of 4468	744	502809355ff063d0faa34edcf6a29924_JaffaCakes118.exe	84
PID 744 wrote to memory of 4468	744	502809355ff063d0faa34edcf6a29924_JaffaCakes118.exe	84
PID 744 wrote to memory of 4468	744	502809355ff063d0faa34edcf6a29924_JaffaCakes118.exe	84
PID 4468 wrote to memory of 2064	4468	502809355ff063d0faa34edcf6a29924_JaffaCakes118.EXE	86
PID 4468 wrote to memory of 2064	4468	502809355ff063d0faa34edcf6a29924_JaffaCakes118.EXE	86
PID 4468 wrote to memory of 2064	4468	502809355ff063d0faa34edcf6a29924_JaffaCakes118.EXE	86
PID 4468 wrote to memory of 2064	4468	502809355ff063d0faa34edcf6a29924_JaffaCakes118.EXE	86
PID 4468 wrote to memory of 2464	4468	502809355ff063d0faa34edcf6a29924_JaffaCakes118.EXE	88
PID 4468 wrote to memory of 2464	4468	502809355ff063d0faa34edcf6a29924_JaffaCakes118.EXE	88
PID 4468 wrote to memory of 2464	4468	502809355ff063d0faa34edcf6a29924_JaffaCakes118.EXE	88

C:\Users\Admin\AppData\Local\Temp\502809355ff063d0faa34edcf6a29924_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\502809355ff063d0faa34edcf6a29924_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:744
- C:\Users\Admin\AppData\Local\Temp\502809355ff063d0faa34edcf6a29924_JaffaCakes118.EXE
  "C:\Users\Admin\AppData\Local\Temp\502809355ff063d0faa34edcf6a29924_JaffaCakes118.EXE"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4468
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2064
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2064 -s 480
      4⤵
      Program crash
      PID:456
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2064 -s 488
      4⤵
      Program crash
      PID:1464
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:2464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2064 -ip 2064
1⤵
PID:4496

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2064 -ip 2064
1⤵
PID:4516

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

memory/2064-7-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/2064-10-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/4468-2-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/4468-4-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/4468-5-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/4468-6-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/4468-8-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download

Analysis

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