xtremerat | ef272a7bcdd2c0d0f7953a1688e2a396ea5abedf6298a7141e111603b821b8c4

General

Target

173a9121f7713037c6500f589658c7e5_JaffaCakes118.exe
Size

19KB
MD5

173a9121f7713037c6500f589658c7e5
SHA1

419c0c55eecc8ff679059e5049bb23ee2049a995
SHA256

ef272a7bcdd2c0d0f7953a1688e2a396ea5abedf6298a7141e111603b821b8c4
SHA512

41d16b8574fcebb99be294fdf6fe89e311262048bf02e99d5d577b6a295abacb0ee9c778c6530ab85d2758ff3a962b67e958e5342163266cf6b8c83ca28de270
SSDEEP

384:OHkbvZrowDq6mpVIRTMT6rk9H0UNCITiY07P8aketR:/cwDVmjWMuruUUNlO7P5ku

Score

10^/10

Malware Config

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/1736-4-0x0000000000C80000-0x0000000000C95000-memory.dmp	family_xtremerat
behavioral2/memory/4064-5-0x0000000000C80000-0x0000000000C95000-memory.dmp	family_xtremerat
behavioral2/memory/1736-7-0x0000000000C80000-0x0000000000C95000-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 2 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

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{34U3Y3NN-EWP8-Y5DQ-A3I5-71FD1N5235A6}	173a9121f7713037c6500f589658c7e5_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{34U3Y3NN-EWP8-Y5DQ-A3I5-71FD1N5235A6}\StubPath = "C:\\Windows\\system32\\Update\\main.exe restart"	173a9121f7713037c6500f589658c7e5_JaffaCakes118.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4064-0-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral2/memory/1736-4-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral2/memory/4064-5-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral2/memory/1736-7-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\k = "C:\\Windows\\system32\\Update\\main.exe"	173a9121f7713037c6500f589658c7e5_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\b = "C:\\Windows\\system32\\Update\\main.exe"	173a9121f7713037c6500f589658c7e5_JaffaCakes118.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Update\main.exe	173a9121f7713037c6500f589658c7e5_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\Update\main.exe	173a9121f7713037c6500f589658c7e5_JaffaCakes118.exe

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1736	calc.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4064 wrote to memory of 4832	4064	173a9121f7713037c6500f589658c7e5_JaffaCakes118.exe	90
PID 4064 wrote to memory of 4832	4064	173a9121f7713037c6500f589658c7e5_JaffaCakes118.exe	90
PID 4064 wrote to memory of 4832	4064	173a9121f7713037c6500f589658c7e5_JaffaCakes118.exe	90
PID 4064 wrote to memory of 1780	4064	173a9121f7713037c6500f589658c7e5_JaffaCakes118.exe	94
PID 4064 wrote to memory of 1780	4064	173a9121f7713037c6500f589658c7e5_JaffaCakes118.exe	94
PID 4064 wrote to memory of 1780	4064	173a9121f7713037c6500f589658c7e5_JaffaCakes118.exe	94
PID 4064 wrote to memory of 1736	4064	173a9121f7713037c6500f589658c7e5_JaffaCakes118.exe	95
PID 4064 wrote to memory of 1736	4064	173a9121f7713037c6500f589658c7e5_JaffaCakes118.exe	95
PID 4064 wrote to memory of 1736	4064	173a9121f7713037c6500f589658c7e5_JaffaCakes118.exe	95
PID 4064 wrote to memory of 1736	4064	173a9121f7713037c6500f589658c7e5_JaffaCakes118.exe	95

C:\Users\Admin\AppData\Local\Temp\173a9121f7713037c6500f589658c7e5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\173a9121f7713037c6500f589658c7e5_JaffaCakes118.exe"
1⤵
- Boot or Logon Autostart Execution: Active Setup
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4064
- C:\Windows\SysWOW64\calc.exe
  calc.exe
  2⤵
  PID:4832
- C:\Windows\SysWOW64\calc.exe
  calc.exe
  2⤵
  PID:1780
- C:\Windows\SysWOW64\calc.exe
  calc.exe
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:1736

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4352,i,16856304285138459032,14480077487839828721,262144 --variations-seed-version --mojo-platform-channel-handle=4464 /prefetch:8
1⤵
PID:2636

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1736-4-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/1736-7-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/4064-0-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/4064-5-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads