xtremerat | ab422308ca8c908fcea4818466657560af1aec6fd70e6b3665bcd4856cd6239c

General

Target
JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe
Size 88KB
Sample250116-2a5vqs1rhv
SHA256 ab422308ca8c908fcea4818466657560af1aec6fd70e6b3665bcd4856cd6239c
MD5 837d0943208f808bc56d3cceb896d8b5
SHA1 21ebea059070db1513ee3f257326c6a29d6445cc
SHA512 cea192f895f5be9306bb3779be048eac7be72ac131e08963c353520b122aebfdcfe1931b2ffd8684fd723c7f5c59d5e1b83d1ee5bdf06ab56ef6d00651548669
SSDEEP 1536:VbuN8xBay1T90uFKVfLSQqPgPzxJsHMCEVg0VHbEc:sIaOT90u4RKMCEV3VHbEc
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

w2w.no-ip.info

Signatures

Detect XtremeRAT payload 7 IoCs

resource	yara_rule
behavioral2/memory/5116-2-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/5116-3-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/5116-4-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/5116-5-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/4560-6-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/5116-7-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/4560-8-0x0000000010000000-0x0000000010045000-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 3748 set thread context of 5116	3748	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe	82

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
4052	4560	WerFault.exe	83
2088	4560	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_837d0943208f808bc56d3cceb896d8b5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3748	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3748 wrote to memory of 5116	3748	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe	82
PID 3748 wrote to memory of 5116	3748	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe	82
PID 3748 wrote to memory of 5116	3748	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe	82
PID 3748 wrote to memory of 5116	3748	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe	82
PID 3748 wrote to memory of 5116	3748	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe	82
PID 3748 wrote to memory of 5116	3748	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe	82
PID 3748 wrote to memory of 5116	3748	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe	82
PID 3748 wrote to memory of 5116	3748	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe	82
PID 3748 wrote to memory of 5116	3748	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe	82
PID 3748 wrote to memory of 5116	3748	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe	82
PID 3748 wrote to memory of 5116	3748	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe	82
PID 3748 wrote to memory of 5116	3748	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe	82
PID 3748 wrote to memory of 5116	3748	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe	82
PID 5116 wrote to memory of 4560	5116	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe	83
PID 5116 wrote to memory of 4560	5116	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe	83
PID 5116 wrote to memory of 4560	5116	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe	83
PID 5116 wrote to memory of 4560	5116	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe	83
PID 5116 wrote to memory of 3460	5116	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe	84
PID 5116 wrote to memory of 3460	5116	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe	84
PID 5116 wrote to memory of 3460	5116	JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe	84

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3748
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_837d0943208f808bc56d3cceb896d8b5.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5116
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4560
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4560 -s 480
      4⤵
      Program crash
      PID:4052
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4560 -s 488
      4⤵
      Program crash
      PID:2088
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:3460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4560 -ip 4560
1⤵
PID:2264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4560 -ip 4560
1⤵
PID:1508

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

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Downloads

memory/4560-6-0x0000000010000000-0x0000000010045000-memory.dmp

Download

memory/4560-8-0x0000000010000000-0x0000000010045000-memory.dmp

Download

memory/5116-2-0x0000000010000000-0x0000000010045000-memory.dmp

Download

memory/5116-3-0x0000000010000000-0x0000000010045000-memory.dmp

Download

memory/5116-4-0x0000000010000000-0x0000000010045000-memory.dmp

Download

memory/5116-5-0x0000000010000000-0x0000000010045000-memory.dmp

Download

memory/5116-7-0x0000000010000000-0x0000000010045000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads