xtremerat | c8937ae4eea1c04ba6d17a54c39404aaa39921bab24d414e10c9ee1078f86048

General

Target

JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe
Size

1.4MB
MD5

84d786f213341e91a87fc3dfab721b23
SHA1

2e0acf189e3ada1115c434571d972169dcdbb213
SHA256

c8937ae4eea1c04ba6d17a54c39404aaa39921bab24d414e10c9ee1078f86048
SHA512

bf0d0089536e48982637f1e0a30ea269f655b1bd7e7532c96280ea46d6496df8c610c2d0fe64e4ada8b05840c2785ae6f9fe574d1e47164687a5b73b8910bcb8
SSDEEP

24576:C4pU6QBRsaK/cRgOnmq9g6JL2lZR+jlLo82XPmYIoGZ8bDgTtL8TNvGvxHVs:C4gBucOU7m6q6l6PmYIoGZ8YTZ8JvGXs

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

umutakcicekk.no-ip.org

Signatures

Detect XtremeRAT payload 7 IoCs

resource	yara_rule
behavioral2/memory/1416-31-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2576-35-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1348-36-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1348-40-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1348-41-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1348-39-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2576-42-0x0000000010000000-0x000000001004D000-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
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\{G4VL8Q52-8301-JL21-78BY-06Q3G3I736W7}\StubPath = "C:\\Windows\\system32\\InstallDir\\Server.exe restart"	explorer.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{G4VL8Q52-8301-JL21-78BY-06Q3G3I736W7}	explorer.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\\system32\\InstallDir\\Server.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3218366390-1258052702-4267193707-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\InstallDir\\Server.exe"	explorer.exe

Drops file in System32 directory 3 IoCs

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1700 set thread context of 1416	1700	JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe	87

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1416-29-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1416-30-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1416-31-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2576-35-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1348-36-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1348-40-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1348-41-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1348-39-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2576-42-0x0000000010000000-0x000000001004D000-memory.dmp	upx

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
5100	2576	WerFault.exe	88
5112	2576	WerFault.exe	88

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_84d786f213341e91a87fc3dfab721b23.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1700	JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe
1348	explorer.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 1416	1700	JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe	87
PID 1700 wrote to memory of 1416	1700	JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe	87
PID 1700 wrote to memory of 1416	1700	JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe	87
PID 1700 wrote to memory of 1416	1700	JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe	87
PID 1700 wrote to memory of 1416	1700	JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe	87
PID 1700 wrote to memory of 1416	1700	JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe	87
PID 1700 wrote to memory of 1416	1700	JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe	87
PID 1700 wrote to memory of 1416	1700	JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe	87
PID 1416 wrote to memory of 2576	1416	JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe	88
PID 1416 wrote to memory of 2576	1416	JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe	88
PID 1416 wrote to memory of 2576	1416	JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe	88
PID 1416 wrote to memory of 2576	1416	JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe	88
PID 1416 wrote to memory of 1348	1416	JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe	90
PID 1416 wrote to memory of 1348	1416	JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe	90
PID 1416 wrote to memory of 1348	1416	JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe	90
PID 1416 wrote to memory of 1348	1416	JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe	90

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_84d786f213341e91a87fc3dfab721b23.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1416
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2576
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2576 -s 480
      4⤵
      Program crash
      PID:5100
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2576 -s 488
      4⤵
      Program crash
      PID:5112
- - C:\Windows\SysWOW64\explorer.exe
    explorer.exe
    3⤵
    - 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:1348

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2576 -ip 2576
1⤵
PID:3732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 2576 -ip 2576
1⤵
PID:536

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/1348-39-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1348-41-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1348-40-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1348-36-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1416-29-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1416-31-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1416-30-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1700-10-0x0000000003D00000-0x0000000003E95000-memory.dmp

Filesize
1.6MB

Download
memory/1700-26-0x0000000003CD0000-0x0000000003CD1000-memory.dmp

Filesize
4KB

Download
memory/1700-0-0x0000000000400000-0x0000000000590000-memory.dmp

Filesize
1.6MB

Download
memory/1700-15-0x0000000003D00000-0x0000000003D01000-memory.dmp

Filesize
4KB

Download
memory/1700-14-0x0000000003D00000-0x0000000003D01000-memory.dmp

Filesize
4KB

Download
memory/1700-13-0x0000000003D00000-0x0000000003D01000-memory.dmp

Filesize
4KB

Download
memory/1700-12-0x0000000003D00000-0x0000000003D01000-memory.dmp

Filesize
4KB

Download
memory/1700-11-0x0000000003D00000-0x0000000003D01000-memory.dmp

Filesize
4KB

Download
memory/1700-9-0x0000000003CB0000-0x0000000003CB3000-memory.dmp

Filesize
12KB

Download
memory/1700-8-0x0000000003CC0000-0x0000000003CC1000-memory.dmp

Filesize
4KB

Download
memory/1700-7-0x00000000024A0000-0x00000000024A1000-memory.dmp

Filesize
4KB

Download
memory/1700-6-0x0000000002420000-0x0000000002421000-memory.dmp

Filesize
4KB

Download
memory/1700-5-0x0000000002460000-0x0000000002461000-memory.dmp

Filesize
4KB

Download
memory/1700-3-0x0000000002430000-0x0000000002431000-memory.dmp

Filesize
4KB

Download
memory/1700-2-0x0000000002440000-0x0000000002441000-memory.dmp

Filesize
4KB

Download
memory/1700-16-0x0000000003D00000-0x0000000003D01000-memory.dmp

Filesize
4KB

Download
memory/1700-25-0x00000000022E0000-0x00000000022E1000-memory.dmp

Filesize
4KB

Download
memory/1700-24-0x0000000000660000-0x0000000000661000-memory.dmp

Filesize
4KB

Download
memory/1700-17-0x0000000003D00000-0x0000000003D01000-memory.dmp

Filesize
4KB

Download
memory/1700-18-0x0000000003D00000-0x0000000003D01000-memory.dmp

Filesize
4KB

Download
memory/1700-19-0x0000000003D00000-0x0000000003D01000-memory.dmp

Filesize
4KB

Download
memory/1700-34-0x00000000023B0000-0x0000000002410000-memory.dmp

Filesize
384KB

Download
memory/1700-33-0x0000000000400000-0x0000000000590000-memory.dmp

Filesize
1.6MB

Download
memory/1700-1-0x00000000023B0000-0x0000000002410000-memory.dmp

Filesize
384KB

Download
memory/1700-21-0x0000000003D00000-0x0000000003D01000-memory.dmp

Filesize
4KB

Download
memory/1700-20-0x0000000003D00000-0x0000000003D01000-memory.dmp

Filesize
4KB

Download
memory/1700-4-0x0000000002490000-0x0000000002491000-memory.dmp

Filesize
4KB

Download
memory/2576-35-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2576-42-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads