xtremerat | 87878d1ba77fee78212915f8ee900459da05179e002af962c9a3625016fd8163

General

Target

JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe
Size

59KB
MD5

9e161e004aedda435eb43ed8b760ff86
SHA1

0a26074c7d8893390b027c1514eff6070d8f0bab
SHA256

87878d1ba77fee78212915f8ee900459da05179e002af962c9a3625016fd8163
SHA512

3f98dff58a2ae4f6df8d6e6ee9d3ff1283c977dd3e548c0069db0324a514330bd7a5d4f04f2770d73b7ef20e8c4084032d99f1906df15fe1364db0c5d72ed8f4
SSDEEP

1536:LBNGbeNdZr4Z135Wt0+Ed50Io5AZl5jjOOB1XDRD:Lfla5Wt0+ET0Iogl5jiIXDRD

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

mal3k.no-ip.org

Signatures

Detect XtremeRAT payload 6 IoCs

resource	yara_rule
behavioral2/memory/4856-8-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/4856-9-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/3852-10-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/3236-11-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/4856-12-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/3852-14-0x0000000010000000-0x0000000010048000-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 2876 set thread context of 4856	2876	JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe	83

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4856-3-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4856-5-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4856-8-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4856-9-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/3852-10-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/3236-11-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4856-12-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/3852-14-0x0000000010000000-0x0000000010048000-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
2964	3852	WerFault.exe	85
2756	3236	WerFault.exe	87
720	3236	WerFault.exe	87
1932	3852	WerFault.exe	85

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_9e161e004aedda435eb43ed8b760ff86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2876	JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2876 wrote to memory of 4856	2876	JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe	83
PID 2876 wrote to memory of 4856	2876	JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe	83
PID 2876 wrote to memory of 4856	2876	JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe	83
PID 2876 wrote to memory of 4856	2876	JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe	83
PID 2876 wrote to memory of 4856	2876	JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe	83
PID 2876 wrote to memory of 4856	2876	JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe	83
PID 2876 wrote to memory of 4856	2876	JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe	83
PID 2876 wrote to memory of 4856	2876	JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe	83
PID 4856 wrote to memory of 3852	4856	JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe	85
PID 4856 wrote to memory of 3852	4856	JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe	85
PID 4856 wrote to memory of 3852	4856	JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe	85
PID 4856 wrote to memory of 3852	4856	JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe	85
PID 4856 wrote to memory of 3236	4856	JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe	87
PID 4856 wrote to memory of 3236	4856	JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe	87
PID 4856 wrote to memory of 3236	4856	JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe	87
PID 4856 wrote to memory of 3236	4856	JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2876
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9e161e004aedda435eb43ed8b760ff86.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4856
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3852
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3852 -s 480
      4⤵
      Program crash
      PID:2964
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3852 -s 500
      4⤵
      Program crash
      PID:1932
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3236
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3236 -s 476
      4⤵
      Program crash
      PID:2756
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3236 -s 496
      4⤵
      Program crash
      PID:720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3852 -ip 3852
1⤵
PID:628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3236 -ip 3236
1⤵
PID:5008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3236 -ip 3236
1⤵
PID:3092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 3852 -ip 3852
1⤵
PID:3892

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/2876-0-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2876-7-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/3236-11-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/3852-10-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/3852-14-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4856-3-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4856-5-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4856-8-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4856-9-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4856-12-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download

Analysis

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