xtremerat | 3ec9b2e6eaa1dacbd0446096270912390e77fcdf9540961afec83c31e95e207e

General

Target

JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe
Size

108KB
MD5

50423fd16d4e2c21d286c062164c27ab
SHA1

a574914d4e8b304216ce09e13d75e8af51e3b476
SHA256

3ec9b2e6eaa1dacbd0446096270912390e77fcdf9540961afec83c31e95e207e
SHA512

de7bcbe31052f43757f66bb45c4d1bb5eb5853879b6161f64347dd15d483717c2af855462c3cf428459ddda6d6416e49b9f60e72c38934a8d2e442780ea8fe3b
SSDEEP

1536:PnFnrx4TEk1btTmmfAa6R5NlT94rbK/n36ek2+K39:PnVUbtT9f76Flx4cn36bDK39

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

securitywindows.3utilities.com

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/524-3-0x0000000010000000-0x000000001004B000-memory.dmp	family_xtremerat
behavioral2/memory/1792-5-0x0000000010000000-0x000000001004B000-memory.dmp	family_xtremerat
behavioral2/memory/524-6-0x0000000010000000-0x000000001004B000-memory.dmp	family_xtremerat
behavioral2/memory/1792-7-0x0000000010000000-0x000000001004B000-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 3148 set thread context of 524	3148	JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe	85

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/524-0-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/524-2-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/524-4-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/524-3-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/1792-5-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/524-6-0x0000000010000000-0x000000001004B000-memory.dmp	upx
behavioral2/memory/1792-7-0x0000000010000000-0x000000001004B000-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
3508	1792	WerFault.exe	86
2652	1792	WerFault.exe	86

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	JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3148 wrote to memory of 524	3148	JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe	85
PID 3148 wrote to memory of 524	3148	JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe	85
PID 3148 wrote to memory of 524	3148	JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe	85
PID 3148 wrote to memory of 524	3148	JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe	85
PID 3148 wrote to memory of 524	3148	JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe	85
PID 3148 wrote to memory of 524	3148	JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe	85
PID 3148 wrote to memory of 524	3148	JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe	85
PID 3148 wrote to memory of 524	3148	JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe	85
PID 524 wrote to memory of 1792	524	JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe	86
PID 524 wrote to memory of 1792	524	JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe	86
PID 524 wrote to memory of 1792	524	JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe	86
PID 524 wrote to memory of 1792	524	JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe	86
PID 524 wrote to memory of 2072	524	JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe	87
PID 524 wrote to memory of 2072	524	JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe	87
PID 524 wrote to memory of 2072	524	JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3148
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_50423fd16d4e2c21d286c062164c27ab.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:524
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1792
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1792 -s 480
      4⤵
      Program crash
      PID:3508
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1792 -s 500
      4⤵
      Program crash
      PID:2652
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:2072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1792 -ip 1792
1⤵
PID:360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1792 -ip 1792
1⤵
PID:4332

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/524-0-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/524-2-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/524-4-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/524-3-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/524-6-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/1792-5-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download
memory/1792-7-0x0000000010000000-0x000000001004B000-memory.dmp

Filesize
300KB

Download

Analysis

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