xtremerat | 450ec3d990b2bb57dfecdd700fddd1dea7dada39515c1e726c7ec8cbe867387b

General

Target

d5513bbb4cd679385500cbfae8f731ad_JaffaCakes118.exe
Size

19KB
MD5

d5513bbb4cd679385500cbfae8f731ad
SHA1

2f2b8df0e5f03cdc3fd03c39cb9b17ed3bda1b4f
SHA256

450ec3d990b2bb57dfecdd700fddd1dea7dada39515c1e726c7ec8cbe867387b
SHA512

b69ce940a872a61343b546ad336d46b9009a44c8a81b66c9b285ebc48b84e4ba6029f24c16a44aea26ebef68782ad1133214d2cc88fcbe4ae74302d96acfc926
SSDEEP

384:tHKZfuH87GowDqGoMwevqxP6k6zIDwPVBSuGuwq5wSg7R:YZfuHUvwDKP6kMpPGud5wv

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral1/memory/2400-6-0x0000000000C80000-0x0000000000C95000-memory.dmp	family_xtremerat
behavioral1/memory/2096-10-0x0000000000C80000-0x0000000000C95000-memory.dmp	family_xtremerat
behavioral1/memory/2084-11-0x0000000000C80000-0x0000000000C95000-memory.dmp	family_xtremerat
behavioral1/memory/2096-13-0x0000000000C80000-0x0000000000C95000-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
Xtremerat family
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

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{08PP37GA-2311-P8XC-OTYU-0103L57SE5L3}	d5513bbb4cd679385500cbfae8f731ad_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{08PP37GA-2311-P8XC-OTYU-0103L57SE5L3}\StubPath = "C:\\Windows\\system32\\InstallDir\\alg.exe restart"	d5513bbb4cd679385500cbfae8f731ad_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{08PP37GA-2311-P8XC-OTYU-0103L57SE5L3}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{08PP37GA-2311-P8XC-OTYU-0103L57SE5L3}\StubPath = "C:\\Windows\\system32\\InstallDir\\alg.exe"	svchost.exe

Adds Run key to start application 2 TTPs 4 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\\system32\\InstallDir\\alg.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\InstallDir\\alg.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\system32\\InstallDir\\alg.exe"	d5513bbb4cd679385500cbfae8f731ad_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\InstallDir\\alg.exe"	d5513bbb4cd679385500cbfae8f731ad_JaffaCakes118.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\InstallDir\alg.exe	d5513bbb4cd679385500cbfae8f731ad_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\InstallDir\alg.exe	d5513bbb4cd679385500cbfae8f731ad_JaffaCakes118.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2084-0-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral1/memory/2400-6-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral1/files/0x0008000000015d79-7.dat	upx
behavioral1/memory/2096-10-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral1/memory/2084-11-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx
behavioral1/memory/2096-13-0x0000000000C80000-0x0000000000C95000-memory.dmp	upx

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d5513bbb4cd679385500cbfae8f731ad_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2096	explorer.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2400	2084	d5513bbb4cd679385500cbfae8f731ad_JaffaCakes118.exe	30
PID 2084 wrote to memory of 2400	2084	d5513bbb4cd679385500cbfae8f731ad_JaffaCakes118.exe	30
PID 2084 wrote to memory of 2400	2084	d5513bbb4cd679385500cbfae8f731ad_JaffaCakes118.exe	30
PID 2084 wrote to memory of 2400	2084	d5513bbb4cd679385500cbfae8f731ad_JaffaCakes118.exe	30
PID 2084 wrote to memory of 2400	2084	d5513bbb4cd679385500cbfae8f731ad_JaffaCakes118.exe	30
PID 2084 wrote to memory of 2096	2084	d5513bbb4cd679385500cbfae8f731ad_JaffaCakes118.exe	31
PID 2084 wrote to memory of 2096	2084	d5513bbb4cd679385500cbfae8f731ad_JaffaCakes118.exe	31
PID 2084 wrote to memory of 2096	2084	d5513bbb4cd679385500cbfae8f731ad_JaffaCakes118.exe	31
PID 2084 wrote to memory of 2096	2084	d5513bbb4cd679385500cbfae8f731ad_JaffaCakes118.exe	31
PID 2084 wrote to memory of 2096	2084	d5513bbb4cd679385500cbfae8f731ad_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\d5513bbb4cd679385500cbfae8f731ad_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d5513bbb4cd679385500cbfae8f731ad_JaffaCakes118.exe"
1⤵
- 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 WriteProcessMemory
PID:2084
- 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:2400
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2096

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\InstallDir\alg.exe

Filesize
19KB

MD5
d5513bbb4cd679385500cbfae8f731ad

SHA1
2f2b8df0e5f03cdc3fd03c39cb9b17ed3bda1b4f

SHA256
450ec3d990b2bb57dfecdd700fddd1dea7dada39515c1e726c7ec8cbe867387b

SHA512
b69ce940a872a61343b546ad336d46b9009a44c8a81b66c9b285ebc48b84e4ba6029f24c16a44aea26ebef68782ad1133214d2cc88fcbe4ae74302d96acfc926

Download Submit
memory/2084-0-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/2084-11-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/2096-10-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/2096-13-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/2400-4-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download
memory/2400-6-0x0000000000C80000-0x0000000000C95000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads