xtremerat | c11c14f8abaf19bacf74656c6ec76c447c934619609229da16d4481a50770901

General

Target

JaffaCakes118_38687d177cc66321a67934e5f2608993.exe
Size

184KB
MD5

38687d177cc66321a67934e5f2608993
SHA1

20749d7c3931c8425631cd1205cef64196e80018
SHA256

c11c14f8abaf19bacf74656c6ec76c447c934619609229da16d4481a50770901
SHA512

e51493d448518efb1bc2e08f054eca0672079f58596e50144f791f3d703299e1d973dbf23610d247b2e4a20989ff0546a40d5ab9e2b61a7684b6eb85a6474506
SSDEEP

3072:9aXGEAdU/FQR1tF5CpZX9IqGPkekDB93ekf7Bo5aXNhvddQSe1I/iiL:82ECl1rMpdpmknDBc0m5aXS

Score

10^/10

xtremerat discovery persistence phishing rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

motif111.no-ip.org

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/3972-37-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral2/memory/4300-39-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral2/memory/1704-41-0x0000000000C80000-0x0000000000C96000-memory.dmp	family_xtremerat
behavioral2/memory/4300-43-0x0000000000C80000-0x0000000000C96000-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 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\{5460C4DF-B266-909E-CB58-E32B79832EB2}	filex1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\system32\\InstallDir\\explor.exe restart"	filex1.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\system32\\InstallDir\\explor.exe restart"	svchost.exe

A potential corporate email address has been identified in the URL: [email protected]
phishing

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_38687d177cc66321a67934e5f2608993.exe

Executes dropped EXE 2 IoCs

pid	Process
1704	filex1.exe
1452	filex2.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\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\InstallDir\\explor.exe"	filex1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\system32\\InstallDir\\explor.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\InstallDir\\explor.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\system32\\InstallDir\\explor.exe"	filex1.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\InstallDir\explor.exe	filex1.exe
File opened for modification	C:\Windows\SysWOW64\InstallDir\explor.exe	filex1.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0008000000023cbd-13.dat	upx
behavioral2/memory/1704-19-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/3972-37-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/4300-39-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/1704-41-0x0000000000C80000-0x0000000000C96000-memory.dmp	upx
behavioral2/memory/4300-43-0x0000000000C80000-0x0000000000C96000-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	filex1.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 1 IoCs

pid	Process
4300	explorer.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4700 wrote to memory of 1704	4700	JaffaCakes118_38687d177cc66321a67934e5f2608993.exe	85
PID 4700 wrote to memory of 1704	4700	JaffaCakes118_38687d177cc66321a67934e5f2608993.exe	85
PID 4700 wrote to memory of 1704	4700	JaffaCakes118_38687d177cc66321a67934e5f2608993.exe	85
PID 4700 wrote to memory of 1452	4700	JaffaCakes118_38687d177cc66321a67934e5f2608993.exe	86
PID 4700 wrote to memory of 1452	4700	JaffaCakes118_38687d177cc66321a67934e5f2608993.exe	86
PID 1704 wrote to memory of 3972	1704	filex1.exe	87
PID 1704 wrote to memory of 3972	1704	filex1.exe	87
PID 1704 wrote to memory of 3972	1704	filex1.exe	87
PID 1704 wrote to memory of 3972	1704	filex1.exe	87
PID 1704 wrote to memory of 388	1704	filex1.exe	88
PID 1704 wrote to memory of 388	1704	filex1.exe	88
PID 1704 wrote to memory of 4300	1704	filex1.exe	89
PID 1704 wrote to memory of 4300	1704	filex1.exe	89
PID 1704 wrote to memory of 4300	1704	filex1.exe	89
PID 1704 wrote to memory of 4300	1704	filex1.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_38687d177cc66321a67934e5f2608993.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_38687d177cc66321a67934e5f2608993.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4700
- C:\Users\Admin\AppData\Local\Temp\filex1.exe
  "C:\Users\Admin\AppData\Local\Temp\filex1.exe"
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1704
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - Boot or Logon Autostart Execution: Active Setup
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:3972
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:388
- - C:\Windows\SysWOW64\explorer.exe
    explorer.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:4300
- C:\Users\Admin\AppData\Local\Temp\filex2.exe
  "C:\Users\Admin\AppData\Local\Temp\filex2.exe"
  2⤵
  - Executes dropped EXE
  PID:1452

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

Query Registry

1

T1012

System Information Discovery

2

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:\Users\Admin\AppData\Local\Temp\filex1.exe

Filesize
21KB

MD5
41c9d6dd70740541337a77478ecbec5e

SHA1
069dff1f65ad8fa0f7c0eac336d2bb403d8eee47

SHA256
03cefe07498539246e46f31f79468e3105a4bb44e8c22f60c782875d768a6977

SHA512
f9d6a8165514cc972bba86b1a273a9cbe9a02648d058e6a75d4b37c41495a6bc03a314aebca75b289beb2a7e48e02980e336d7eb6a8bab13cdeff311a2ee293a

Download Submit
C:\Users\Admin\AppData\Local\Temp\filex2.exe

Filesize
124KB

MD5
c547d490c608b0c18f1f51b752dad777

SHA1
68ece417f28829ab64cf691eeffb1af564cd5a3d

SHA256
e29ea6644c5e895724746e35556a0cc17414d9877873c58a0c2b82990c6f1609

SHA512
85c5bd9048818a7d271d578d0b7336ab10eeed87274c6a3e59ea3e82b89e3b6ba293d11892794aa226f32885c500d0fca8de01bf8c7ca05651f1933dbc829736

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\((Mutex)).xtr

Filesize
143KB

MD5
17839fa81d5d8d8c772b3f847bef47be

SHA1
cfbb07ce1e79def27773d0ef18c549d2046a8347

SHA256
00badecbf5d0338c768260a75de30d44d1d3024ead816c040ff7ca85767e6509

SHA512
6d4a7101d11c42ac88eb12b071ca3e0e3dbc9270f399156bc5c9992fa90f373d864ed7be58027d3893aebb2ca709380c4a4d1f577fbfdfa5f8a20302d68e0b6a

Download Submit
memory/1452-30-0x00007FF976340000-0x00007FF976CE1000-memory.dmp

Filesize
9.6MB

Download
memory/1452-64-0x00007FF976340000-0x00007FF976CE1000-memory.dmp

Filesize
9.6MB

Download
memory/1452-33-0x00007FF976340000-0x00007FF976CE1000-memory.dmp

Filesize
9.6MB

Download
memory/1452-31-0x00007FF976340000-0x00007FF976CE1000-memory.dmp

Filesize
9.6MB

Download
memory/1704-41-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/1704-19-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/3972-37-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/4300-43-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/4300-39-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/4700-5-0x000000001C220000-0x000000001C2BC000-memory.dmp

Filesize
624KB

Download
memory/4700-9-0x00007FF976340000-0x00007FF976CE1000-memory.dmp

Filesize
9.6MB

Download
memory/4700-7-0x000000001C380000-0x000000001C3CC000-memory.dmp

Filesize
304KB

Download
memory/4700-32-0x00007FF976340000-0x00007FF976CE1000-memory.dmp

Filesize
9.6MB

Download
memory/4700-6-0x00000000010E0000-0x00000000010E8000-memory.dmp

Filesize
32KB

Download
memory/4700-0-0x00007FF9765F5000-0x00007FF9765F6000-memory.dmp

Filesize
4KB

Download
memory/4700-4-0x00007FF976340000-0x00007FF976CE1000-memory.dmp

Filesize
9.6MB

Download
memory/4700-3-0x000000001BC60000-0x000000001C12E000-memory.dmp

Filesize
4.8MB

Download
memory/4700-2-0x00007FF976340000-0x00007FF976CE1000-memory.dmp

Filesize
9.6MB

Download
memory/4700-1-0x000000001B6E0000-0x000000001B786000-memory.dmp

Filesize
664KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads