xtremerat | f01d0d3b9fdc9a82e2c047489d1e52960f46cced8273b16489743cc2f62d65da

General

Target

2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe
Size

347KB
MD5

2054e0f6879b5132b16f162ac74fec4e
SHA1

2029dfbd5faef53fcfa1b4a74b0218fc347df189
SHA256

f01d0d3b9fdc9a82e2c047489d1e52960f46cced8273b16489743cc2f62d65da
SHA512

f471bc0171b5a02970876e25786b297998d2bdcc2d13d580ee6051c9053d2a7cbb1d2e29288425fbeb8c26a07438b2d453d2e0e6dc291a499d740b61f0e7bf1b
SSDEEP

6144:0ZuwGi39bfWSAERocPiGNhh5jMTykSmgOfgR44KmByM:qj9DWStvPiGNb5ITgm5Z47

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/1448-7-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1448-8-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3844-10-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1448-11-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/3844-12-0x0000000010000000-0x000000001004A000-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 1804 set thread context of 1448	1804	2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe	85

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1448-4-0x0000000010000000-0x000000001004A000-memory.dmp	upx
behavioral2/memory/1448-6-0x0000000010000000-0x000000001004A000-memory.dmp	upx
behavioral2/memory/1448-7-0x0000000010000000-0x000000001004A000-memory.dmp	upx
behavioral2/memory/1448-8-0x0000000010000000-0x000000001004A000-memory.dmp	upx
behavioral2/memory/3844-10-0x0000000010000000-0x000000001004A000-memory.dmp	upx
behavioral2/memory/1448-11-0x0000000010000000-0x000000001004A000-memory.dmp	upx
behavioral2/memory/3844-12-0x0000000010000000-0x000000001004A000-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
2576	3844	WerFault.exe	87
3520	3844	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	2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1804	2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1804 wrote to memory of 1448	1804	2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe	85
PID 1804 wrote to memory of 1448	1804	2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe	85
PID 1804 wrote to memory of 1448	1804	2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe	85
PID 1804 wrote to memory of 1448	1804	2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe	85
PID 1804 wrote to memory of 1448	1804	2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe	85
PID 1804 wrote to memory of 1448	1804	2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe	85
PID 1804 wrote to memory of 1448	1804	2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe	85
PID 1804 wrote to memory of 1448	1804	2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe	85
PID 1448 wrote to memory of 3844	1448	2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe	87
PID 1448 wrote to memory of 3844	1448	2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe	87
PID 1448 wrote to memory of 3844	1448	2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe	87
PID 1448 wrote to memory of 3844	1448	2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe	87
PID 1448 wrote to memory of 2860	1448	2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe	88
PID 1448 wrote to memory of 2860	1448	2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe	88
PID 1448 wrote to memory of 2860	1448	2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe	88

C:\Users\Admin\AppData\Local\Temp\2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1804
- C:\Users\Admin\AppData\Local\Temp\2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\2054e0f6879b5132b16f162ac74fec4e_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1448
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3844
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3844 -s 484
      4⤵
      Program crash
      PID:2576
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3844 -s 492
      4⤵
      Program crash
      PID:3520
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:2860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 3844 -ip 3844
1⤵
PID:3700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3844 -ip 3844
1⤵
PID:1008

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/1448-4-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1448-6-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1448-7-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1448-8-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1448-11-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/1804-9-0x0000000000400000-0x0000000000494000-memory.dmp

Filesize
592KB

Download
memory/3844-10-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download
memory/3844-12-0x0000000010000000-0x000000001004A000-memory.dmp

Filesize
296KB

Download

Analysis

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