xtremerat | 55e63e9e8b44a41ffdf93b82278267d9c49b3ed5f14aa76c47cf30c9abaf23ad

General

Target

JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe
Size

21KB
MD5

1a642791c2eb1d1f198b3eab65a1d18f
SHA1

862ab2ac9d89e486fc67bbab6dfe4e85757f4539
SHA256

55e63e9e8b44a41ffdf93b82278267d9c49b3ed5f14aa76c47cf30c9abaf23ad
SHA512

b155ef17205d321d9fc7f62babd3f0e74b62d8ef4251cc55dcfe2dee0b8340bfdeaf22f1fe4b2f6d881ff16979332cb61a96d44eb6949704195a66a0397725e7
SSDEEP

384:2IdmF+TH95xJMu/0PlxjV8BINhuLJ37tMOpuqqz3KK7eIVmiHudhb/EiFGpaRg1n:2IsF8HdbKjV8BX7Vy6K7eIVTHudh/E2m

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

pnrwngrt.no-ip.org

Signatures

Detect XtremeRAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/4748-4-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral2/memory/3724-6-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral2/memory/4748-8-0x0000000000C80000-0x0000000000C96000-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

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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart"	JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}	JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe"	JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3724-0-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/4748-4-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/3724-6-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/4748-8-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\InstallDir\Server.exe	JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe
File created	C:\Windows\InstallDir\Server.exe	JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.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 2 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_1a642791c2eb1d1f198b3eab65a1d18f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4748	explorer.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3724 wrote to memory of 3692	3724	JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe	85
PID 3724 wrote to memory of 3692	3724	JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe	85
PID 3724 wrote to memory of 1376	3724	JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe	86
PID 3724 wrote to memory of 1376	3724	JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe	86
PID 3724 wrote to memory of 1376	3724	JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe	86
PID 3724 wrote to memory of 4948	3724	JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe	87
PID 3724 wrote to memory of 4948	3724	JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe	87
PID 3724 wrote to memory of 552	3724	JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe	88
PID 3724 wrote to memory of 552	3724	JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe	88
PID 3724 wrote to memory of 552	3724	JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe	88
PID 3724 wrote to memory of 3616	3724	JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe	89
PID 3724 wrote to memory of 3616	3724	JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe	89
PID 3724 wrote to memory of 4748	3724	JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe	90
PID 3724 wrote to memory of 4748	3724	JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe	90
PID 3724 wrote to memory of 4748	3724	JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe	90
PID 3724 wrote to memory of 4748	3724	JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe	90

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a642791c2eb1d1f198b3eab65a1d18f.exe"
1⤵
- Boot or Logon Autostart Execution: Active Setup
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3724
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:3692
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  PID:1376
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:4948
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  PID:552
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  PID:3616
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4748

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

memory/3724-0-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/3724-6-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/4748-4-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/4748-5-0x00007FFAB8B90000-0x00007FFAB8D85000-memory.dmp

Filesize
2.0MB

Download
memory/4748-8-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/4748-9-0x00007FFAB8B90000-0x00007FFAB8D85000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads