xtremerat | 671f16e9cfa413dd1c989e97eafb228d981d5ba0b59b9e7cb775b38d6df80e23

General

Target

JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe
Size

95KB
MD5

00a426b5589205ba2f1bc448f2cb733f
SHA1

96976ed4cddffe96fbb2b00f82dc58ffb65e430f
SHA256

671f16e9cfa413dd1c989e97eafb228d981d5ba0b59b9e7cb775b38d6df80e23
SHA512

b9eec4e38149d3657bbe814cc6d48fa3f2da144577ee095ef0ac39fae54f46a371a7a314e7eae3f8a477a15a3b476f4a8163ce1fa7fed2264e9e5c1956b91c2c
SSDEEP

1536:nF2gO8Wg//I18VO37gCaj/J1h0UMKbu3wvc01dWkZBsAPoe+Es:ogO8Ng8VvnvqwfkAgJEs

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

black100.no-ip.biz

cantstop.no-ip.biz

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/1984-5-0x0000000010000000-0x0000000010049000-memory.dmp	family_xtremerat
behavioral2/memory/1984-6-0x0000000010000000-0x0000000010049000-memory.dmp	family_xtremerat
behavioral2/memory/2028-7-0x0000000010000000-0x0000000010049000-memory.dmp	family_xtremerat
behavioral2/memory/1984-8-0x0000000010000000-0x0000000010049000-memory.dmp	family_xtremerat
behavioral2/memory/2028-9-0x0000000010000000-0x0000000010049000-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 3532 set thread context of 1984	3532	JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe	85

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1984-2-0x0000000010000000-0x0000000010049000-memory.dmp	upx
behavioral2/memory/1984-4-0x0000000010000000-0x0000000010049000-memory.dmp	upx
behavioral2/memory/1984-5-0x0000000010000000-0x0000000010049000-memory.dmp	upx
behavioral2/memory/1984-6-0x0000000010000000-0x0000000010049000-memory.dmp	upx
behavioral2/memory/2028-7-0x0000000010000000-0x0000000010049000-memory.dmp	upx
behavioral2/memory/1984-8-0x0000000010000000-0x0000000010049000-memory.dmp	upx
behavioral2/memory/2028-9-0x0000000010000000-0x0000000010049000-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
1376	2028	WerFault.exe	86
2100	2028	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_00a426b5589205ba2f1bc448f2cb733f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3532	JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3532 wrote to memory of 1984	3532	JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe	85
PID 3532 wrote to memory of 1984	3532	JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe	85
PID 3532 wrote to memory of 1984	3532	JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe	85
PID 3532 wrote to memory of 1984	3532	JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe	85
PID 3532 wrote to memory of 1984	3532	JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe	85
PID 3532 wrote to memory of 1984	3532	JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe	85
PID 3532 wrote to memory of 1984	3532	JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe	85
PID 3532 wrote to memory of 1984	3532	JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe	85
PID 1984 wrote to memory of 2028	1984	JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe	86
PID 1984 wrote to memory of 2028	1984	JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe	86
PID 1984 wrote to memory of 2028	1984	JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe	86
PID 1984 wrote to memory of 2028	1984	JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe	86
PID 1984 wrote to memory of 2952	1984	JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe	87
PID 1984 wrote to memory of 2952	1984	JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe	87
PID 1984 wrote to memory of 2952	1984	JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3532
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_00a426b5589205ba2f1bc448f2cb733f.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1984
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2028
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2028 -s 480
      4⤵
      Program crash
      PID:1376
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2028 -s 488
      4⤵
      Program crash
      PID:2100
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:2952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2028 -ip 2028
1⤵
PID:728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2028 -ip 2028
1⤵
PID:4456

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/1984-2-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download
memory/1984-4-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download
memory/1984-5-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download
memory/1984-6-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download
memory/1984-8-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download
memory/2028-7-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download
memory/2028-9-0x0000000010000000-0x0000000010049000-memory.dmp

Filesize
292KB

Download

Analysis

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