xtremerat | 044aa542a343314306a87d462c548b9dcac413df9248f80193c1f4fadf45e438

General

Target

5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe
Size

645KB
MD5

5a86e50772560aa88dcbad3ee94f1c13
SHA1

8936765c54d5bae4337b48a13c8b6e17d95bb2b3
SHA256

044aa542a343314306a87d462c548b9dcac413df9248f80193c1f4fadf45e438
SHA512

b4dad1f56bca62cc88eaf5da286a7faec04160e9117e811d364245c676af3b29023221d6c64324db5b16def5f00e4e0f0c1b7567a079644a5eaacf13301a8781
SSDEEP

12288:6QZuOWo7YNQN2YcKify3iC8ut0i1oQjUZbvFFF/Dr5uiuW:6nMwQgsiK3AcIXFFf5uiuW

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

maradoma.no-ip.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/1300-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1300-10-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4280-13-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1300-14-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4280-15-0x0000000010000000-0x000000001004D000-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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3688 set thread context of 1300	3688	5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe	86

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1300-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1300-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1300-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1300-10-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4280-13-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1300-14-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4280-15-0x0000000010000000-0x000000001004D000-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
2180	4280	WerFault.exe	87
1496	4280	WerFault.exe	87

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	5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3688	5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe
3688	5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3688 wrote to memory of 1300	3688	5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe	86
PID 3688 wrote to memory of 1300	3688	5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe	86
PID 3688 wrote to memory of 1300	3688	5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe	86
PID 3688 wrote to memory of 1300	3688	5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe	86
PID 3688 wrote to memory of 1300	3688	5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe	86
PID 3688 wrote to memory of 1300	3688	5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe	86
PID 3688 wrote to memory of 1300	3688	5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe	86
PID 3688 wrote to memory of 1300	3688	5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe	86
PID 1300 wrote to memory of 4280	1300	5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe	87
PID 1300 wrote to memory of 4280	1300	5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe	87
PID 1300 wrote to memory of 4280	1300	5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe	87
PID 1300 wrote to memory of 4280	1300	5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe	87
PID 1300 wrote to memory of 472	1300	5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe	89
PID 1300 wrote to memory of 472	1300	5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe	89
PID 1300 wrote to memory of 472	1300	5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe	89

C:\Users\Admin\AppData\Local\Temp\5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3688
- C:\Users\Admin\AppData\Local\Temp\5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\5a86e50772560aa88dcbad3ee94f1c13_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1300
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4280
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4280 -s 480
      4⤵
      Program crash
      PID:2180
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4280 -s 488
      4⤵
      Program crash
      PID:1496
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4280 -ip 4280
1⤵
PID:116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4280 -ip 4280
1⤵
PID:1652

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/1300-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1300-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1300-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1300-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1300-14-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3688-0-0x0000000000400000-0x00000000007B0000-memory.dmp

Filesize
3.7MB

Download
memory/3688-12-0x0000000000400000-0x00000000007B0000-memory.dmp

Filesize
3.7MB

Download
memory/4280-13-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4280-15-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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