xtremerat | a46058989a0b424fcd9cbfe6cfe07366fe543ebfe2b865a9813f532d3d67c67d

General

Target

JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe
Size

266KB
MD5

78be57338cd3609be03a8907237b6b0e
SHA1

32131af42489e530d87d204cb170fe63ef3a48ef
SHA256

a46058989a0b424fcd9cbfe6cfe07366fe543ebfe2b865a9813f532d3d67c67d
SHA512

1322216934bcea4e3b71e8c3ce5df2bd8eefed912294610d0c556e8e439f4bef2b6c104a61df9f7a8e915f5e2cf65aef057b653f820605063087686874667cb1
SSDEEP

6144:ckA/RnKQBYxpiPNktfYbBf7ph4g2nCTVP9FTiSaum:ckA/RbBphN2CT39iSfm

Score

10^/10

xtremerat discovery persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

memozzz.no-ip.org

Signatures

Detect XtremeRAT payload 8 IoCs

resource	yara_rule
behavioral2/memory/3860-3-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/3860-4-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/3860-5-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/3860-8-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/1920-9-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/852-10-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/3860-11-0x0000000010000000-0x0000000010045000-memory.dmp	family_xtremerat
behavioral2/memory/1920-13-0x0000000010000000-0x0000000010045000-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 3656 set thread context of 3860	3656	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe	84

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

System Information Discovery
T1082

Program crash 4 IoCs

pid	pid_target	Process	procid_target
3912	852	WerFault.exe	87
4004	1920	WerFault.exe	86
4224	852	WerFault.exe	87
3252	1920	WerFault.exe	86

System Location Discovery: System Language Discovery 1 TTPs 4 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	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3656	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3656 wrote to memory of 3860	3656	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe	84
PID 3656 wrote to memory of 3860	3656	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe	84
PID 3656 wrote to memory of 3860	3656	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe	84
PID 3656 wrote to memory of 3860	3656	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe	84
PID 3656 wrote to memory of 3860	3656	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe	84
PID 3656 wrote to memory of 3860	3656	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe	84
PID 3656 wrote to memory of 3860	3656	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe	84
PID 3656 wrote to memory of 3860	3656	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe	84
PID 3656 wrote to memory of 3860	3656	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe	84
PID 3656 wrote to memory of 3860	3656	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe	84
PID 3656 wrote to memory of 3860	3656	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe	84
PID 3656 wrote to memory of 3860	3656	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe	84
PID 3656 wrote to memory of 3860	3656	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe	84
PID 3860 wrote to memory of 1920	3860	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe	86
PID 3860 wrote to memory of 1920	3860	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe	86
PID 3860 wrote to memory of 1920	3860	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe	86
PID 3860 wrote to memory of 1920	3860	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe	86
PID 3860 wrote to memory of 852	3860	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe	87
PID 3860 wrote to memory of 852	3860	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe	87
PID 3860 wrote to memory of 852	3860	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe	87
PID 3860 wrote to memory of 852	3860	JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3656
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78be57338cd3609be03a8907237b6b0e.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3860
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1920
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1920 -s 480
      4⤵
      Program crash
      PID:4004
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1920 -s 504
      4⤵
      Program crash
      PID:3252
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:852
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 852 -s 476
      4⤵
      Program crash
      PID:3912
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 852 -s 500
      4⤵
      Program crash
      PID:4224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1920 -ip 1920
1⤵
PID:4028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 852 -ip 852
1⤵
PID:4640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 852 -ip 852
1⤵
PID:556

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 1920 -ip 1920
1⤵
PID:4216

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/852-10-0x0000000010000000-0x0000000010045000-memory.dmp

Filesize
276KB

Download
memory/1920-9-0x0000000010000000-0x0000000010045000-memory.dmp

Filesize
276KB

Download
memory/1920-13-0x0000000010000000-0x0000000010045000-memory.dmp

Filesize
276KB

Download
memory/3656-0-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/3656-7-0x0000000000400000-0x00000000004E5000-memory.dmp

Filesize
916KB

Download
memory/3860-3-0x0000000010000000-0x0000000010045000-memory.dmp

Filesize
276KB

Download
memory/3860-4-0x0000000010000000-0x0000000010045000-memory.dmp

Filesize
276KB

Download
memory/3860-5-0x0000000010000000-0x0000000010045000-memory.dmp

Filesize
276KB

Download
memory/3860-8-0x0000000010000000-0x0000000010045000-memory.dmp

Filesize
276KB

Download
memory/3860-11-0x0000000010000000-0x0000000010045000-memory.dmp

Filesize
276KB

Download

Analysis

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