xtremerat | 28b4a73687430cf137c73b9e33483c150d539f25089cf439c2644b588ad38e7c

General

Target

JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe
Size

52KB
MD5

cbcb18b055500f3d2e0113cf0e14a7b4
SHA1

960cc86d2c1d2fca09a97187139423e69702e369
SHA256

28b4a73687430cf137c73b9e33483c150d539f25089cf439c2644b588ad38e7c
SHA512

0a80e9b68ecb7f9c4613eb17fa7573b5234180ef06d9faa0917cca764d1f229caef36597588b860f8960d037e59f7a31a30fa9ceffcacd6ece84fa9e3521273d
SSDEEP

1536:j5pKykodYEopdFV7DHeR3xAjxdW8jZZGiFl:j5Pko3op1/Hw3xP890

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

khaldoon.no-ip.org

Signatures

Detect XtremeRAT payload 6 IoCs

resource	yara_rule
behavioral2/memory/4896-9-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/4896-8-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/2888-10-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/4896-12-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/3696-11-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/2888-14-0x0000000010000000-0x0000000010048000-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 1248 set thread context of 4896	1248	JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe	83

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4896-3-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4896-5-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4896-9-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4896-8-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/2888-10-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4896-12-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/3696-11-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/2888-14-0x0000000010000000-0x0000000010048000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 4 IoCs

pid	pid_target	Process	procid_target
3352	3696	WerFault.exe	85
4492	2888	WerFault.exe	84
1688	3696	WerFault.exe	85
1524	2888	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 4 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_cbcb18b055500f3d2e0113cf0e14a7b4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1248	JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1248 wrote to memory of 4896	1248	JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe	83
PID 1248 wrote to memory of 4896	1248	JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe	83
PID 1248 wrote to memory of 4896	1248	JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe	83
PID 1248 wrote to memory of 4896	1248	JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe	83
PID 1248 wrote to memory of 4896	1248	JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe	83
PID 1248 wrote to memory of 4896	1248	JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe	83
PID 1248 wrote to memory of 4896	1248	JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe	83
PID 1248 wrote to memory of 4896	1248	JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe	83
PID 4896 wrote to memory of 2888	4896	JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe	84
PID 4896 wrote to memory of 2888	4896	JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe	84
PID 4896 wrote to memory of 2888	4896	JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe	84
PID 4896 wrote to memory of 2888	4896	JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe	84
PID 4896 wrote to memory of 3696	4896	JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe	85
PID 4896 wrote to memory of 3696	4896	JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe	85
PID 4896 wrote to memory of 3696	4896	JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe	85
PID 4896 wrote to memory of 3696	4896	JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1248
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cbcb18b055500f3d2e0113cf0e14a7b4.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4896
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2888
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2888 -s 480
      4⤵
      Program crash
      PID:4492
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2888 -s 504
      4⤵
      Program crash
      PID:1524
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3696
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3696 -s 476
      4⤵
      Program crash
      PID:3352
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3696 -s 500
      4⤵
      Program crash
      PID:1688

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3696 -ip 3696
1⤵
PID:3276

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2888 -ip 2888
1⤵
PID:2352

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 3696 -ip 3696
1⤵
PID:4528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 2888 -ip 2888
1⤵
PID:4824

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/1248-0-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/1248-7-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/2888-10-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2888-14-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/3696-11-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4896-3-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4896-5-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4896-9-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4896-8-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4896-12-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download

Analysis

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