xtremerat | 3d645f1df6028016ede7b7e242a6feb3dd0ee33d06ad453d89538e8e045d02f9

General

Target

JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.exe
Size

112KB
MD5

4af585b74294efcce5cf4d80d6ef352b
SHA1

8ab2673e30a2eaf81d8babc4d9ebf57f949b5f62
SHA256

3d645f1df6028016ede7b7e242a6feb3dd0ee33d06ad453d89538e8e045d02f9
SHA512

0bc469582fb5bc7d5995c7bed145ba5dbaed5418331190ab9fafd0a6d746f54e6d89c721e0082ae99a5253e0219458af7594041d1ce95d94f9d2a21f4b40af82
SSDEEP

1536:nJEDcQBnD2ha1ZlKUw99Wyiyfiemb9H/OoOhiJ8c0BpB54v1RATcOuA69B:+LBnD2ha1aUQibN2oqtzI1qNOB

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

dannymatrix.no-ip.org

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/2076-5-0x0000000010000000-0x000000001004F000-memory.dmp	family_xtremerat
behavioral2/memory/3132-7-0x0000000010000000-0x000000001004F000-memory.dmp	family_xtremerat
behavioral2/memory/2076-10-0x0000000010000000-0x000000001004F000-memory.dmp	family_xtremerat
behavioral2/memory/3132-11-0x0000000010000000-0x000000001004F000-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

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\765images.jpg.exe	JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.EXE
File created	C:\Windows\SysWOW64\765images.jpg	JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.EXE

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1884 set thread context of 2076	1884	JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.exe	79

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2076-2-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral2/memory/2076-4-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral2/memory/2076-6-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral2/memory/2076-5-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral2/memory/3132-7-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral2/memory/2076-10-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral2/memory/3132-11-0x0000000010000000-0x000000001004F000-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
1116	3132	WerFault.exe	80
1668	3132	WerFault.exe	80

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_4af585b74294efcce5cf4d80d6ef352b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1884	JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1884 wrote to memory of 2076	1884	JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.exe	79
PID 1884 wrote to memory of 2076	1884	JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.exe	79
PID 1884 wrote to memory of 2076	1884	JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.exe	79
PID 1884 wrote to memory of 2076	1884	JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.exe	79
PID 1884 wrote to memory of 2076	1884	JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.exe	79
PID 1884 wrote to memory of 2076	1884	JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.exe	79
PID 1884 wrote to memory of 2076	1884	JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.exe	79
PID 1884 wrote to memory of 2076	1884	JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.exe	79
PID 2076 wrote to memory of 3132	2076	JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.EXE	80
PID 2076 wrote to memory of 3132	2076	JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.EXE	80
PID 2076 wrote to memory of 3132	2076	JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.EXE	80
PID 2076 wrote to memory of 3132	2076	JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.EXE	80
PID 2076 wrote to memory of 2156	2076	JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.EXE	81
PID 2076 wrote to memory of 2156	2076	JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.EXE	81
PID 2076 wrote to memory of 2156	2076	JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.EXE	81

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1884
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.EXE
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4af585b74294efcce5cf4d80d6ef352b.EXE"
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2076
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3132
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3132 -s 360
      4⤵
      Program crash
      PID:1116
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3132 -s 352
      4⤵
      Program crash
      PID:1668
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:2156

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3132 -ip 3132
1⤵
PID:4084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 3132 -ip 3132
1⤵
PID:4900

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/2076-2-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2076-4-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2076-6-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2076-5-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2076-10-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/3132-7-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/3132-11-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download

Analysis

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