xtremerat | 016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2

General

Target

016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2.exe
Size

897KB
MD5

223d94df101887dce308a2828bb23027
SHA1

b2d6f1e833524c52653d78e277d6814811622390
SHA256

016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2
SHA512

38af35bbc4528a162b51abe67b2af43741e9214c4c1c0abb238cf8d9610427caeb849b4c7fc84b2a7fcd71aa19caa252645fe79a76b345380c73830fdd49d7fb
SSDEEP

24576:K4lavt0LkLL9IMixoEgea01PncVq9MmCS7x:dkwkn9IMHea01IaPCS7x

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

psyy.no-ip.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/4360-3-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4360-4-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2636-5-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/4360-6-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2636-7-0x0000000010000000-0x000000001004D000-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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4568 set thread context of 4360	4568	016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2.exe	89

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4360-0-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4360-2-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4360-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4360-4-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2636-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/4360-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2636-7-0x0000000010000000-0x000000001004D000-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
444	2636	WerFault.exe	90
3292	2636	WerFault.exe	90

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	016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4568	016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2.exe
4568	016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4568 wrote to memory of 4360	4568	016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2.exe	89
PID 4568 wrote to memory of 4360	4568	016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2.exe	89
PID 4568 wrote to memory of 4360	4568	016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2.exe	89
PID 4568 wrote to memory of 4360	4568	016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2.exe	89
PID 4568 wrote to memory of 4360	4568	016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2.exe	89
PID 4360 wrote to memory of 2636	4360	016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2.exe	90
PID 4360 wrote to memory of 2636	4360	016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2.exe	90
PID 4360 wrote to memory of 2636	4360	016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2.exe	90
PID 4360 wrote to memory of 2636	4360	016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2.exe	90
PID 4360 wrote to memory of 2800	4360	016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2.exe	91
PID 4360 wrote to memory of 2800	4360	016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2.exe	91
PID 4360 wrote to memory of 2800	4360	016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2.exe	91

C:\Users\Admin\AppData\Local\Temp\016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2.exe
"C:\Users\Admin\AppData\Local\Temp\016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4568
- C:\Users\Admin\AppData\Local\Temp\016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2.exe
  "C:\Users\Admin\AppData\Local\Temp\016acb02675faac1bf0c4cd7b31a8037b4c450dde080208c6763d35516d69af2.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4360
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2636
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 496
      4⤵
      Program crash
      PID:444
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2636 -s 504
      4⤵
      Program crash
      PID:3292
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:2800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2636 -ip 2636
1⤵
PID:2240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 2636 -ip 2636
1⤵
PID:292

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

Loading Replay Monitor...

Downloads

memory/2636-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2636-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4360-0-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4360-2-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4360-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4360-4-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/4360-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing