xtremerat | fb1675c99fed97b50ce3f5f8c9112e168c1d526c56c4d9445582b6774a82f8b9

General

Target

5b2e858e6e789d4f8862a5c5b89d9d2f_JaffaCakes118.exe
Size

35KB
MD5

5b2e858e6e789d4f8862a5c5b89d9d2f
SHA1

9e69cd0062990c37988e5072681a129a9bb7aa8c
SHA256

fb1675c99fed97b50ce3f5f8c9112e168c1d526c56c4d9445582b6774a82f8b9
SHA512

e851f72934cd5945efcabccb1934bf648fa6a6e7ecd04b2b2d4dca5fe9ed83a4721a35864dc8fcc8d33577e48648aaee1500a6d88b5390b277ee58bfa96706bf
SSDEEP

768:ZEG2Wr4T91a6i4BZSeCC5StddRFtpf720fAWiGwxrbPr:Z7qNZWC5SNPAWid

Score

10^/10

xtremerat aspackv2 discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

momoscd.redirectme.net

Signatures

Detect XtremeRAT payload 7 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2536-3-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/2016-6-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/2536-11-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/1620-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/1620-13-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/2016-15-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/1620-16-0x0000000010000000-0x000000001004D000-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

Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

Processes:

svchost.exenotepad.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{CR45D553-QHX3-M413-2YF0-1C7P4WQ102JP}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{CR45D553-QHX3-M413-2YF0-1C7P4WQ102JP}\StubPath = "C:\\Windows\\system32\\InstallSir\\System.exe"	svchost.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{CR45D553-QHX3-M413-2YF0-1C7P4WQ102JP}	notepad.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{CR45D553-QHX3-M413-2YF0-1C7P4WQ102JP}\StubPath = "C:\\Windows\\system32\\InstallSir\\System.exe restart"	notepad.exe

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

Processes:

resource	yara_rule
behavioral1/files/0x0007000000016d21-14.dat	aspack_v212_v242

Adds Run key to start application 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

notepad.exesvchost.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "%System%"	notepad.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\system32\\InstallSir\\System.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\InstallSir\\System.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\system32\\InstallSir\\System.exe"	notepad.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\InstallSir\\System.exe"	notepad.exe

Drops file in System32 directory 2 IoCs

Processes:

notepad.exe

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\InstallSir\System.exe	notepad.exe
File created	C:\Windows\SysWOW64\InstallSir\System.exe	notepad.exe

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

System Information Discovery
T1082

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

Processes:

5b2e858e6e789d4f8862a5c5b89d9d2f_JaffaCakes118.exesvchost.exenotepad.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5b2e858e6e789d4f8862a5c5b89d9d2f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

notepad.exe

pid	Process
1620	notepad.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

5b2e858e6e789d4f8862a5c5b89d9d2f_JaffaCakes118.exe

description	pid	Process	procid_target
PID 2536 wrote to memory of 2016	2536	5b2e858e6e789d4f8862a5c5b89d9d2f_JaffaCakes118.exe	30
PID 2536 wrote to memory of 2016	2536	5b2e858e6e789d4f8862a5c5b89d9d2f_JaffaCakes118.exe	30
PID 2536 wrote to memory of 2016	2536	5b2e858e6e789d4f8862a5c5b89d9d2f_JaffaCakes118.exe	30
PID 2536 wrote to memory of 2016	2536	5b2e858e6e789d4f8862a5c5b89d9d2f_JaffaCakes118.exe	30
PID 2536 wrote to memory of 2016	2536	5b2e858e6e789d4f8862a5c5b89d9d2f_JaffaCakes118.exe	30
PID 2536 wrote to memory of 1620	2536	5b2e858e6e789d4f8862a5c5b89d9d2f_JaffaCakes118.exe	31
PID 2536 wrote to memory of 1620	2536	5b2e858e6e789d4f8862a5c5b89d9d2f_JaffaCakes118.exe	31
PID 2536 wrote to memory of 1620	2536	5b2e858e6e789d4f8862a5c5b89d9d2f_JaffaCakes118.exe	31
PID 2536 wrote to memory of 1620	2536	5b2e858e6e789d4f8862a5c5b89d9d2f_JaffaCakes118.exe	31
PID 2536 wrote to memory of 1620	2536	5b2e858e6e789d4f8862a5c5b89d9d2f_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\5b2e858e6e789d4f8862a5c5b89d9d2f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5b2e858e6e789d4f8862a5c5b89d9d2f_JaffaCakes118.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  PID:2016
- C:\Windows\SysWOW64\notepad.exe
  notepad.exe
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1620

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Active Setup

1

T1547.014

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

2

T1112

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

C:\Windows\SysWOW64\InstallSir\System.exe

Filesize
35KB

MD5
5b2e858e6e789d4f8862a5c5b89d9d2f

SHA1
9e69cd0062990c37988e5072681a129a9bb7aa8c

SHA256
fb1675c99fed97b50ce3f5f8c9112e168c1d526c56c4d9445582b6774a82f8b9

SHA512
e851f72934cd5945efcabccb1934bf648fa6a6e7ecd04b2b2d4dca5fe9ed83a4721a35864dc8fcc8d33577e48648aaee1500a6d88b5390b277ee58bfa96706bf

Download Submit
memory/1620-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1620-13-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1620-16-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2016-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2016-4-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2016-15-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2536-2-0x0000000010048000-0x0000000010049000-memory.dmp

Filesize
4KB

Download
memory/2536-1-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2536-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2536-0-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2536-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads