xtremerat | 5b8f260d43a454fa6a9c16f4146cbd5bcd1c935318a6020a0bb2916f6d71eb25

General

Target

JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe
Size

277KB
MD5

30247f22c107feb1c35f4471ba4cfecd
SHA1

0235258bf258c3f48a96cb1154573d16fa5bdaeb
SHA256

5b8f260d43a454fa6a9c16f4146cbd5bcd1c935318a6020a0bb2916f6d71eb25
SHA512

7d465dee99cade329ae41cd903e6279dbb755cf527b88da381b644234fbe7a869dfd3e73a561053f6de5f4fa74f20679fa592f978020ef62dbdec4d353c98ec6
SSDEEP

6144:OGxnbpdjjaur3jR2Z4zytbLfGPRD3Indz:1tdKuni4zkUbidz

Score

10^/10

xtremerat defense_evasion discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

bondehacker.no-ip.org

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/3144-17-0x0000000010000000-0x0000000010061000-memory.dmp	family_xtremerat
behavioral2/memory/3268-20-0x0000000010000000-0x0000000010061000-memory.dmp	family_xtremerat
behavioral2/memory/3268-21-0x0000000010000000-0x0000000010061000-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

Loads dropped DLL 1 IoCs

pid	Process
1596	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1596 set thread context of 3144	1596	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe	82

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3144-14-0x0000000010000000-0x0000000010061000-memory.dmp	upx
behavioral2/memory/3144-16-0x0000000010000000-0x0000000010061000-memory.dmp	upx
behavioral2/memory/3144-17-0x0000000010000000-0x0000000010061000-memory.dmp	upx
behavioral2/memory/3268-20-0x0000000010000000-0x0000000010061000-memory.dmp	upx
behavioral2/memory/3268-21-0x0000000010000000-0x0000000010061000-memory.dmp	upx

Drops file in Windows directory 5 IoCs

description	ioc	Process
File created	C:\Windows\Wplugin.dll	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe
File opened for modification	C:\Windows\Wplugin.dll	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe
File created	C:\Windows\explorer.exe.local	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe
File created	C:\Windows\ws2help.dll	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe
File opened for modification	C:\Windows\ws2help.dll	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe

Hijack Execution Flow: DLL Search Order Hijacking 1 TTPs
Possible initial access via DLL redirection search order hijacking.
defense_evasion

DLL Search Order Hijacking
T1574.001
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
1484	3268	WerFault.exe	83
4228	3268	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_30247f22c107feb1c35f4471ba4cfecd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1596	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe
1596	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1596	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1596 wrote to memory of 3144	1596	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe	82
PID 1596 wrote to memory of 3144	1596	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe	82
PID 1596 wrote to memory of 3144	1596	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe	82
PID 1596 wrote to memory of 3144	1596	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe	82
PID 1596 wrote to memory of 3144	1596	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe	82
PID 1596 wrote to memory of 3144	1596	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe	82
PID 1596 wrote to memory of 3144	1596	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe	82
PID 1596 wrote to memory of 3144	1596	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe	82
PID 3144 wrote to memory of 3268	3144	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe	83
PID 3144 wrote to memory of 3268	3144	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe	83
PID 3144 wrote to memory of 3268	3144	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe	83
PID 3144 wrote to memory of 3268	3144	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe	83
PID 3144 wrote to memory of 4480	3144	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe	84
PID 3144 wrote to memory of 4480	3144	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe	84
PID 3144 wrote to memory of 4480	3144	JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe	84

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1596
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_30247f22c107feb1c35f4471ba4cfecd.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3144
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3268
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3268 -s 480
      4⤵
      Program crash
      PID:1484
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3268 -s 500
      4⤵
      Program crash
      PID:4228
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:4480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 3268 -ip 3268
1⤵
PID:2384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3268 -ip 3268
1⤵
PID:4516

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Hijack Execution Flow

1

T1574

DLL Search Order Hijacking

1

T1574.001

Privilege Escalation

Hijack Execution Flow

1

T1574

DLL Search Order Hijacking

1

T1574.001

Defense Evasion

Hijack Execution Flow

1

T1574

DLL Search Order Hijacking

1

T1574.001

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

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Downloads

C:\Users\Admin\AppData\Roaming\Wplugin.dll

Filesize
108KB

MD5
8847a8302dacc1d6fca61f125c8fe8e0

SHA1
f399142bbf03660bee1df555ebbf3acc8f658cf0

SHA256
9c2726defa122089f8251fa104f76d66830f448774ab9bd634adbb6e492e3943

SHA512
2b028bb4139c352b80db1509d1a3f479a8ef7e9b3b73ddbf62e2d83d4e59adf4a0bd6b9d68409bc0b6fafb7a5f56844fbfed6d00b824a6b370689801ce1c837f

Download Submit
memory/1596-5-0x000000000042A000-0x000000000042B000-memory.dmp

Filesize
4KB

Download
memory/1596-18-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/3144-14-0x0000000010000000-0x0000000010061000-memory.dmp

Filesize
388KB

Download
memory/3144-16-0x0000000010000000-0x0000000010061000-memory.dmp

Filesize
388KB

Download
memory/3144-17-0x0000000010000000-0x0000000010061000-memory.dmp

Filesize
388KB

Download
memory/3144-19-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/3268-20-0x0000000010000000-0x0000000010061000-memory.dmp

Filesize
388KB

Download
memory/3268-21-0x0000000010000000-0x0000000010061000-memory.dmp

Filesize
388KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads