xtremerat | 03ad25a88dd1cd27520690f73ef17a7d3b99bcc3257e767cd43e213cd4cc8239

General

Target
21afa7392d2bd00ae265c16b24ef8ae2_JaffaCakes118.exe
Size 188KB
Sample240703-j99nvsycjp
SHA256 03ad25a88dd1cd27520690f73ef17a7d3b99bcc3257e767cd43e213cd4cc8239
MD5 21afa7392d2bd00ae265c16b24ef8ae2
SHA1 435e6598abf9859166db8203c0370a72bd9b8427
SHA512 8e87da5d239092401abd76e0f56654735408fd520e608ac91b8b5e6d5f17f2e280b32284f936dfb220f8c6429db0c627e3271e7e8b50c35e243ebdf5b65f0e98
SSDEEP 3072:8pBrNuf+xbctYneaUK9jvxvhUDP8shSdACptniBMBZSB8rmO0U7OSiEVez6f2ouB:8pmf+0aUejvxvKj8shSdn3vZSB8rP0e5
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xtremerat persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

moon2009us.linkpc.net

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/440-7-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/440-6-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1628-10-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/440-11-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral2/memory/1628-12-0x0000000010000000-0x000000001004D000-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

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3776-0-0x0000000000400000-0x0000000000486000-memory.dmp	upx
behavioral2/memory/440-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/440-5-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/440-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/3776-9-0x0000000000400000-0x0000000000486000-memory.dmp	upx
behavioral2/memory/440-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1628-10-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/440-11-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral2/memory/1628-12-0x0000000010000000-0x000000001004D000-memory.dmp	upx

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3776 set thread context of 440	3776	21afa7392d2bd00ae265c16b24ef8ae2_JaffaCakes118.exe	80

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
3428	1628	WerFault.exe	81
1872	1628	WerFault.exe	81

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3776	21afa7392d2bd00ae265c16b24ef8ae2_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3776 wrote to memory of 440	3776	21afa7392d2bd00ae265c16b24ef8ae2_JaffaCakes118.exe	80
PID 3776 wrote to memory of 440	3776	21afa7392d2bd00ae265c16b24ef8ae2_JaffaCakes118.exe	80
PID 3776 wrote to memory of 440	3776	21afa7392d2bd00ae265c16b24ef8ae2_JaffaCakes118.exe	80
PID 3776 wrote to memory of 440	3776	21afa7392d2bd00ae265c16b24ef8ae2_JaffaCakes118.exe	80
PID 3776 wrote to memory of 440	3776	21afa7392d2bd00ae265c16b24ef8ae2_JaffaCakes118.exe	80
PID 3776 wrote to memory of 440	3776	21afa7392d2bd00ae265c16b24ef8ae2_JaffaCakes118.exe	80
PID 3776 wrote to memory of 440	3776	21afa7392d2bd00ae265c16b24ef8ae2_JaffaCakes118.exe	80
PID 3776 wrote to memory of 440	3776	21afa7392d2bd00ae265c16b24ef8ae2_JaffaCakes118.exe	80
PID 440 wrote to memory of 1628	440	21afa7392d2bd00ae265c16b24ef8ae2_JaffaCakes118.exe	81
PID 440 wrote to memory of 1628	440	21afa7392d2bd00ae265c16b24ef8ae2_JaffaCakes118.exe	81
PID 440 wrote to memory of 1628	440	21afa7392d2bd00ae265c16b24ef8ae2_JaffaCakes118.exe	81
PID 440 wrote to memory of 1628	440	21afa7392d2bd00ae265c16b24ef8ae2_JaffaCakes118.exe	81
PID 440 wrote to memory of 4156	440	21afa7392d2bd00ae265c16b24ef8ae2_JaffaCakes118.exe	82
PID 440 wrote to memory of 4156	440	21afa7392d2bd00ae265c16b24ef8ae2_JaffaCakes118.exe	82
PID 440 wrote to memory of 4156	440	21afa7392d2bd00ae265c16b24ef8ae2_JaffaCakes118.exe	82

C:\Users\Admin\AppData\Local\Temp\21afa7392d2bd00ae265c16b24ef8ae2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\21afa7392d2bd00ae265c16b24ef8ae2_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3776
- C:\Users\Admin\AppData\Local\Temp\21afa7392d2bd00ae265c16b24ef8ae2_JaffaCakes118.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:440
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    PID:1628
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1628 -s 480
      4⤵
      Program crash
      PID:3428
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1628 -s 488
      4⤵
      Program crash
      PID:1872
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:4156

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1628 -ip 1628
1⤵
PID:3536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1628 -ip 1628
1⤵
PID:2292

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/440-3-0x0000000010000000-0x000000001004D000-memory.dmp

Download

memory/440-5-0x0000000010000000-0x000000001004D000-memory.dmp

Download

memory/440-7-0x0000000010000000-0x000000001004D000-memory.dmp

Download

memory/440-6-0x0000000010000000-0x000000001004D000-memory.dmp

Download

memory/440-11-0x0000000010000000-0x000000001004D000-memory.dmp

Download

memory/1628-10-0x0000000010000000-0x000000001004D000-memory.dmp

Download

memory/1628-12-0x0000000010000000-0x000000001004D000-memory.dmp

Download

memory/3776-0-0x0000000000400000-0x0000000000486000-memory.dmp

Download

memory/3776-9-0x0000000000400000-0x0000000000486000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads