xtremerat | 3b3ada4812ca591b4d87b4acb4a8cae43250cca8fdab12c8f2f38da0357a96c0

General

Target

a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe
Size

644KB
MD5

a74c656d1c716b692eec83cb56e5c4cf
SHA1

63cb55268b9a7e9ed2a709958e7b2428417e4075
SHA256

3b3ada4812ca591b4d87b4acb4a8cae43250cca8fdab12c8f2f38da0357a96c0
SHA512

a2c951669a2882825e0f0e88a36e59cf3c37399d0b8eda3dbb86264b2a68472541de8eee97dd23d56bb5993502f01d81ccf35c3cd57e747a6d743bc4ac6352a6
SSDEEP

12288:wiqEYyEuCehVyDYPPiL2FkcRd1tGdQQXrUDSeQQd9oGLRwmUwTdqDP:wvh/9klHiSFnRdP3QYSel9Z+mUwQP

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

franciscoldb.no-ip.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/4136-8-0x0000000010000000-0x0000000010047000-memory.dmp	family_xtremerat
behavioral2/memory/4136-9-0x0000000010000000-0x0000000010047000-memory.dmp	family_xtremerat
behavioral2/memory/4136-10-0x0000000010000000-0x0000000010047000-memory.dmp	family_xtremerat
behavioral2/memory/4664-14-0x0000000010000000-0x0000000010047000-memory.dmp	family_xtremerat
behavioral2/memory/4664-16-0x0000000010000000-0x0000000010047000-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

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3176 set thread context of 4136	3176	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe	82

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
4868	4664	WerFault.exe	83
2948	4664	WerFault.exe	83

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	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\lf1186604961l.ixw	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\lf1186604961l.ixw\ = b9e056aadd803d5d89d4d27cb89960bb	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3176	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe
3176	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3176 wrote to memory of 4136	3176	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe	82
PID 3176 wrote to memory of 4136	3176	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe	82
PID 3176 wrote to memory of 4136	3176	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe	82
PID 3176 wrote to memory of 4136	3176	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe	82
PID 3176 wrote to memory of 4136	3176	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe	82
PID 3176 wrote to memory of 4136	3176	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe	82
PID 3176 wrote to memory of 4136	3176	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe	82
PID 3176 wrote to memory of 4136	3176	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe	82
PID 3176 wrote to memory of 4136	3176	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe	82
PID 3176 wrote to memory of 4136	3176	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe	82
PID 3176 wrote to memory of 4136	3176	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe	82
PID 3176 wrote to memory of 4136	3176	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe	82
PID 3176 wrote to memory of 4136	3176	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe	82
PID 4136 wrote to memory of 4664	4136	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe	83
PID 4136 wrote to memory of 4664	4136	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe	83
PID 4136 wrote to memory of 4664	4136	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe	83
PID 4136 wrote to memory of 4664	4136	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe	83
PID 4136 wrote to memory of 336	4136	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe	84
PID 4136 wrote to memory of 336	4136	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe	84
PID 4136 wrote to memory of 336	4136	a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe	84

C:\Users\Admin\AppData\Local\Temp\a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe"
1⤵
- Checks BIOS information in registry
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3176
- C:\Users\Admin\AppData\Local\Temp\a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\a74c656d1c716b692eec83cb56e5c4cf_JaffaCakes118.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4136
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4664
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 480
      4⤵
      Program crash
      PID:4868
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 488
      4⤵
      Program crash
      PID:2948
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:336

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4664 -ip 4664
1⤵
PID:2236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4664 -ip 4664
1⤵
PID:4108

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

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/3176-2-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/3176-5-0x0000000000401000-0x0000000000421000-memory.dmp

Filesize
128KB

Download
memory/3176-12-0x0000000000401000-0x0000000000421000-memory.dmp

Filesize
128KB

Download
memory/3176-11-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/4136-8-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/4136-9-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/4136-10-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/4136-13-0x0000000000400000-0x00000000004AB000-memory.dmp

Filesize
684KB

Download
memory/4664-14-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download
memory/4664-16-0x0000000010000000-0x0000000010047000-memory.dmp

Filesize
284KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads