xtremerat | a33051c4f43a72b59ebdf41dedd0447f8baf7bd55e363bcb838fe1a367af3005

General

Target

JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe
Size

103KB
MD5

cb26c3b50bdf020ff903991a2b876af0
SHA1

ad4f57006fa3802fa3df5db801807bcff49f1646
SHA256

a33051c4f43a72b59ebdf41dedd0447f8baf7bd55e363bcb838fe1a367af3005
SHA512

3ae9c245b724641b648a5915a88b99e5eb57edbf89a7e295efa6b3e6e6d6addc63af1369cc17db94ec6b86c541a3fc1e3195ff28aa7e19b65b645aa7330c4ae2
SSDEEP

3072:eRl3Y+TR8IdqARyhtk8YO4hD8MqpPm2QHi:eRloETDWK8MCm2QH

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

alssm.no-ip.biz

Signatures

Detect XtremeRAT payload 11 IoCs

resource	yara_rule
behavioral2/memory/2652-4-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/2652-5-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/2652-6-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/2652-8-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/3312-10-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/3876-11-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/2652-12-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/3312-17-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/3876-19-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/3876-18-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/3876-20-0x0000000010000000-0x0000000010048000-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
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{S3875TV7-54F1-5XNB-M1L2-RS4IE8H56D40}	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{S3875TV7-54F1-5XNB-M1L2-RS4IE8H56D40}\StubPath = "C:\\Windows\\system32\\windiwsubdata\\windows updata.exe restart"	explorer.exe

Downloads MZ/PE file 1 IoCs

flow	pid	Process
26	3348	Process not Found

Deletes itself 1 IoCs

pid	Process
3876	explorer.exe

Adds Run key to start application 2 TTPs 3 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\updata = "C:\\Windows\\system32\\windiwsubdata\\windows updata.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1639772215-809007892-4072230623-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\update = "C:\\Windows\\system32\\windiwsubdata\\windows updata.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1639772215-809007892-4072230623-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "%updata%"	explorer.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\windiwsubdata\windows updata.exe	explorer.exe
File created	C:\Windows\SysWOW64\windiwsubdata\windows updata.exe	explorer.exe
File opened for modification	C:\Windows\SysWOW64\windiwsubdata\	explorer.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2760 set thread context of 2652	2760	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe	85

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

System Information Discovery
T1082

Program crash 3 IoCs

pid	pid_target	Process	procid_target
1536	3312	WerFault.exe	87
1020	3312	WerFault.exe	87
4648	3876	WerFault.exe	89

System Location Discovery: System Language Discovery 1 TTPs 6 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	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe
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	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
5032	MicrosoftEdgeUpdate.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2760	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe
3876	explorer.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2760 wrote to memory of 2652	2760	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe	85
PID 2760 wrote to memory of 2652	2760	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe	85
PID 2760 wrote to memory of 2652	2760	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe	85
PID 2760 wrote to memory of 2652	2760	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe	85
PID 2760 wrote to memory of 2652	2760	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe	85
PID 2760 wrote to memory of 2652	2760	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe	85
PID 2760 wrote to memory of 2652	2760	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe	85
PID 2760 wrote to memory of 2652	2760	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe	85
PID 2760 wrote to memory of 2652	2760	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe	85
PID 2760 wrote to memory of 2652	2760	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe	85
PID 2760 wrote to memory of 2652	2760	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe	85
PID 2760 wrote to memory of 2652	2760	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe	85
PID 2760 wrote to memory of 2652	2760	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe	85
PID 2652 wrote to memory of 3312	2652	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe	87
PID 2652 wrote to memory of 3312	2652	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe	87
PID 2652 wrote to memory of 3312	2652	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe	87
PID 2652 wrote to memory of 3312	2652	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe	87
PID 2652 wrote to memory of 3876	2652	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe	89
PID 2652 wrote to memory of 3876	2652	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe	89
PID 2652 wrote to memory of 3876	2652	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe	89
PID 2652 wrote to memory of 3876	2652	JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe	89

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ua /installsource core
1⤵
- System Location Discovery: System Language Discovery
PID:1900

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2760
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cb26c3b50bdf020ff903991a2b876af0.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2652
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3312
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3312 -s 484
      4⤵
      Program crash
      PID:1536
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3312 -s 488
      4⤵
      Program crash
      PID:1020
- - C:\Windows\SysWOW64\explorer.exe
    explorer.exe
    3⤵
    - Boot or Logon Autostart Execution: Active Setup
    - Deletes itself
    - Adds Run key to start application
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:3876
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3876 -s 1120
      4⤵
      Program crash
      PID:4648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3312 -ip 3312
1⤵
PID:1516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3312 -ip 3312
1⤵
PID:3048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3876 -ip 3876
1⤵
PID:2812

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIyIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDY4ODkiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxOTM2NTgwOTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI3NDc5ODExNjA0Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:5032

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Microsoft\EdgeUpdate\Log\MicrosoftEdgeUpdate.log

Filesize
457KB

MD5
56fd4969637031149667c5749162cea0

SHA1
7bbd7bc9b1ab1e939515d4501aaaa85852d8e08c

SHA256
874c0de1410d5a2cdf445cc73de3da0f0db786ae58407db466a195d3a50b78d3

SHA512
183e07d27d5998b34a30415e46335a8de1eb6a71c462cd79934065ee51ec131a13c5a8fb350a86a79c469327de406cf946811189b14e400c4dc0da4794ae34d9

Download Submit
memory/2652-12-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2652-4-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2652-5-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2652-6-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2652-8-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2760-1-0x00000000001C0000-0x00000000001C3000-memory.dmp

Filesize
12KB

Download
memory/2760-7-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/2760-9-0x00000000001C0000-0x00000000001C3000-memory.dmp

Filesize
12KB

Download
memory/2760-0-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/3312-10-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/3312-17-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/3876-19-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/3876-18-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/3876-20-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/3876-11-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads