xtremerat | 31d9328a5c77b2ac0337798e3102952f99ddb4926328a1af6ec2573c0cd21a47

General

Target

JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe
Size

412KB
MD5

1a0a6597af66859243f756f6fde625c7
SHA1

899c54d6258278faf91a5c7adb382253e6b19d5b
SHA256

31d9328a5c77b2ac0337798e3102952f99ddb4926328a1af6ec2573c0cd21a47
SHA512

3fbad6b94a08933c2a26227cfcccbb4f408de2b1499ca18bfc54f5522a076793dd485ef94589c4ab734951f49b3559c6d66e850f09487ea9e2e9adc96381c142
SSDEEP

3072:gF+jfPsCLt5oMxHLXy7DWhiU/mUpZ1KeIDmVVaPzrc77OWw8x8conyDldbcdzvTZ:RNR71eCZEeVVsc769/concldbs+

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

mal3k.no-ip.org

Signatures

Detect XtremeRAT payload 6 IoCs

resource	yara_rule
behavioral2/memory/1496-7-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/1496-8-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/4828-9-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/2408-10-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/1496-11-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral2/memory/4828-12-0x0000000010000000-0x0000000010048000-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 4872 set thread context of 1496	4872	JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe	84

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1496-3-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/1496-6-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/1496-7-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/1496-8-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4828-9-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/2408-10-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/1496-11-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral2/memory/4828-12-0x0000000010000000-0x0000000010048000-memory.dmp	upx

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
4868	4828	WerFault.exe	86
4100	2408	WerFault.exe	88
2492	4828	WerFault.exe	86
428	2408	WerFault.exe	88

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_1a0a6597af66859243f756f6fde625c7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4872	JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4872 wrote to memory of 1496	4872	JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe	84
PID 4872 wrote to memory of 1496	4872	JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe	84
PID 4872 wrote to memory of 1496	4872	JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe	84
PID 4872 wrote to memory of 1496	4872	JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe	84
PID 4872 wrote to memory of 1496	4872	JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe	84
PID 4872 wrote to memory of 1496	4872	JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe	84
PID 4872 wrote to memory of 1496	4872	JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe	84
PID 4872 wrote to memory of 1496	4872	JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe	84
PID 1496 wrote to memory of 4828	1496	JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe	86
PID 1496 wrote to memory of 4828	1496	JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe	86
PID 1496 wrote to memory of 4828	1496	JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe	86
PID 1496 wrote to memory of 4828	1496	JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe	86
PID 1496 wrote to memory of 2408	1496	JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe	88
PID 1496 wrote to memory of 2408	1496	JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe	88
PID 1496 wrote to memory of 2408	1496	JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe	88
PID 1496 wrote to memory of 2408	1496	JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4872
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a0a6597af66859243f756f6fde625c7.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1496
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4828
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4828 -s 476
      4⤵
      Program crash
      PID:4868
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4828 -s 488
      4⤵
      Program crash
      PID:2492
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2408
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2408 -s 476
      4⤵
      Program crash
      PID:4100
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2408 -s 484
      4⤵
      Program crash
      PID:428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4828 -ip 4828
1⤵
PID:2028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2408 -ip 2408
1⤵
PID:4064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4828 -ip 4828
1⤵
PID:2816

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 2408 -ip 2408
1⤵
PID:1588

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/1496-3-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/1496-6-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/1496-7-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/1496-8-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/1496-11-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/2408-10-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4828-9-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4828-12-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/4872-0-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/4872-5-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download

Analysis

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