xtremerat | 0f8237e339ac99ec7098390a3fe1a766c39d044c6dd545ea7c349fa6e8a31a71

General

Target

JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe
Size

108KB
MD5

7d9917056929a2c3a36845f49659cac9
SHA1

99fc0ee85a48677685506d856f94b35f5d253131
SHA256

0f8237e339ac99ec7098390a3fe1a766c39d044c6dd545ea7c349fa6e8a31a71
SHA512

88f8beb65434a3c45cbb6d650f94b85066e09d601dea0cf494b9a46af21389519a49b317bddd0630a62bdff712ef30715adce2e6fc8c5752843d6bc9e2738a8a
SSDEEP

1536:b9ah/mW/YuGHO9Tb0o9ZDOis28iG1wCbZ84Qd4zOd5kKxG9:bQh/mPuGHw0ogwsZ8Tr5kKxq

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

explorecheck.no-ip.biz

Signatures

Detect XtremeRAT payload 4 IoCs

resource	yara_rule
behavioral2/memory/5436-6-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2592-8-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/5436-9-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/2592-10-0x0000000010000000-0x000000001004D000-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

Executes dropped EXE 1 IoCs

pid	Process
5436	JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5796 set thread context of 5436	5796	JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe	88

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5436-2-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/5436-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/5436-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/5436-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2592-8-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/5436-9-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/2592-10-0x0000000010000000-0x000000001004D000-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
5548	2592	WerFault.exe	89
1624	2592	WerFault.exe	89

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_7d9917056929a2c3a36845f49659cac9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5796	JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 5796 wrote to memory of 5436	5796	JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe	88
PID 5796 wrote to memory of 5436	5796	JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe	88
PID 5796 wrote to memory of 5436	5796	JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe	88
PID 5796 wrote to memory of 5436	5796	JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe	88
PID 5796 wrote to memory of 5436	5796	JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe	88
PID 5796 wrote to memory of 5436	5796	JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe	88
PID 5796 wrote to memory of 5436	5796	JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe	88
PID 5796 wrote to memory of 5436	5796	JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe	88
PID 5436 wrote to memory of 2592	5436	JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe	89
PID 5436 wrote to memory of 2592	5436	JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe	89
PID 5436 wrote to memory of 2592	5436	JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe	89
PID 5436 wrote to memory of 2592	5436	JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe	89
PID 5436 wrote to memory of 1856	5436	JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe	90
PID 5436 wrote to memory of 1856	5436	JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe	90
PID 5436 wrote to memory of 1856	5436	JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe	90

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5796
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5436
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2592
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2592 -s 476
      4⤵
      Program crash
      PID:5548
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2592 -s 480
      4⤵
      Program crash
      PID:1624
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:1856

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2592 -ip 2592
1⤵
PID:2572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2592 -ip 2592
1⤵
PID:1880

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

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7d9917056929a2c3a36845f49659cac9.exe

Filesize
108KB

MD5
7d9917056929a2c3a36845f49659cac9

SHA1
99fc0ee85a48677685506d856f94b35f5d253131

SHA256
0f8237e339ac99ec7098390a3fe1a766c39d044c6dd545ea7c349fa6e8a31a71

SHA512
88f8beb65434a3c45cbb6d650f94b85066e09d601dea0cf494b9a46af21389519a49b317bddd0630a62bdff712ef30715adce2e6fc8c5752843d6bc9e2738a8a

Download Submit
memory/2592-8-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2592-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/5436-2-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/5436-5-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/5436-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/5436-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/5436-9-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

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