xtremerat | 3592e6d24f86015afec4b94e9d7b037a642a71b11fd27c0083aef8d22257b5f2

General

Target

6811fb576444744493588618ef27c831_JaffaCakes118.exe
Size

111KB
MD5

6811fb576444744493588618ef27c831
SHA1

aaf907d26f14bd8f5cae499c808ea1dc66d57dcc
SHA256

3592e6d24f86015afec4b94e9d7b037a642a71b11fd27c0083aef8d22257b5f2
SHA512

cce853dc43e1c96d1a0be968b300dec1a23301c34afc5661e6e08cf8f3ab4527d985cff7fbb7945f107127e764908e31a5a85b68253209bf779fa951de151e2b
SSDEEP

3072:DdvVjqqdqqqLJqMPaZ0JKYf5hPSMNWrw7JfPZF7e+U9Fn:DdvVjqqdqqqLJqkdhPYrorK+U

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

mimmo86.no-ip.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/3864-24-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3864-25-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4932-26-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/3864-27-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4932-29-0x0000000010000000-0x000000001004D000-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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4036 set thread context of 3864	4036	6811fb576444744493588618ef27c831_JaffaCakes118.exe	84

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3864-20-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3864-22-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3864-24-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3864-25-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4932-26-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3864-27-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4932-29-0x0000000010000000-0x000000001004D000-memory.dmp	upx

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64	6811fb576444744493588618ef27c831_JaffaCakes118.exe

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
220	4932	WerFault.exe	85
1144	4932	WerFault.exe	85

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	6811fb576444744493588618ef27c831_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6811fb576444744493588618ef27c831_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4036	6811fb576444744493588618ef27c831_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4036 wrote to memory of 3864	4036	6811fb576444744493588618ef27c831_JaffaCakes118.exe	84
PID 4036 wrote to memory of 3864	4036	6811fb576444744493588618ef27c831_JaffaCakes118.exe	84
PID 4036 wrote to memory of 3864	4036	6811fb576444744493588618ef27c831_JaffaCakes118.exe	84
PID 4036 wrote to memory of 3864	4036	6811fb576444744493588618ef27c831_JaffaCakes118.exe	84
PID 4036 wrote to memory of 3864	4036	6811fb576444744493588618ef27c831_JaffaCakes118.exe	84
PID 4036 wrote to memory of 3864	4036	6811fb576444744493588618ef27c831_JaffaCakes118.exe	84
PID 4036 wrote to memory of 3864	4036	6811fb576444744493588618ef27c831_JaffaCakes118.exe	84
PID 4036 wrote to memory of 3864	4036	6811fb576444744493588618ef27c831_JaffaCakes118.exe	84
PID 3864 wrote to memory of 4932	3864	6811fb576444744493588618ef27c831_JaffaCakes118.exe	85
PID 3864 wrote to memory of 4932	3864	6811fb576444744493588618ef27c831_JaffaCakes118.exe	85
PID 3864 wrote to memory of 4932	3864	6811fb576444744493588618ef27c831_JaffaCakes118.exe	85
PID 3864 wrote to memory of 4932	3864	6811fb576444744493588618ef27c831_JaffaCakes118.exe	85
PID 3864 wrote to memory of 3120	3864	6811fb576444744493588618ef27c831_JaffaCakes118.exe	86
PID 3864 wrote to memory of 3120	3864	6811fb576444744493588618ef27c831_JaffaCakes118.exe	86
PID 3864 wrote to memory of 3120	3864	6811fb576444744493588618ef27c831_JaffaCakes118.exe	86

C:\Users\Admin\AppData\Local\Temp\6811fb576444744493588618ef27c831_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6811fb576444744493588618ef27c831_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4036
- C:\Users\Admin\AppData\Local\Temp\6811fb576444744493588618ef27c831_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\6811fb576444744493588618ef27c831_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3864
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4932
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4932 -s 480
      4⤵
      Program crash
      PID:220
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4932 -s 488
      4⤵
      Program crash
      PID:1144
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:3120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4932 -ip 4932
1⤵
PID:312

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4932 -ip 4932
1⤵
PID:232

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

Replay Monitor

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Downloads

memory/3864-20-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3864-27-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3864-25-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3864-24-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/3864-22-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4036-3-0x00000000023A0000-0x00000000023B0000-memory.dmp

Filesize
64KB

Download
memory/4036-16-0x0000000002480000-0x0000000002490000-memory.dmp

Filesize
64KB

Download
memory/4036-2-0x0000000002390000-0x00000000023A0000-memory.dmp

Filesize
64KB

Download
memory/4036-14-0x0000000002460000-0x0000000002470000-memory.dmp

Filesize
64KB

Download
memory/4036-13-0x0000000002450000-0x0000000002460000-memory.dmp

Filesize
64KB

Download
memory/4036-12-0x0000000002440000-0x0000000002450000-memory.dmp

Filesize
64KB

Download
memory/4036-11-0x0000000002430000-0x0000000002440000-memory.dmp

Filesize
64KB

Download
memory/4036-10-0x0000000002420000-0x0000000002430000-memory.dmp

Filesize
64KB

Download
memory/4036-9-0x0000000002410000-0x0000000002420000-memory.dmp

Filesize
64KB

Download
memory/4036-8-0x0000000002400000-0x0000000002410000-memory.dmp

Filesize
64KB

Download
memory/4036-15-0x0000000002470000-0x0000000002480000-memory.dmp

Filesize
64KB

Download
memory/4036-0-0x0000000000400000-0x000000000041C600-memory.dmp

Filesize
113KB

Download
memory/4036-17-0x0000000002490000-0x00000000024A0000-memory.dmp

Filesize
64KB

Download
memory/4036-4-0x00000000023B0000-0x00000000023C0000-memory.dmp

Filesize
64KB

Download
memory/4036-5-0x00000000023C0000-0x00000000023D0000-memory.dmp

Filesize
64KB

Download
memory/4036-23-0x0000000000400000-0x000000000041C600-memory.dmp

Filesize
113KB

Download
memory/4036-6-0x00000000023D0000-0x00000000023E0000-memory.dmp

Filesize
64KB

Download
memory/4036-7-0x00000000023F0000-0x0000000002400000-memory.dmp

Filesize
64KB

Download
memory/4036-1-0x0000000000560000-0x0000000000570000-memory.dmp

Filesize
64KB

Download
memory/4932-26-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4932-29-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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