xtremerat | 2999f314a6bed51858277069fbaf9ca01d506871d7e7bd4798e76ebc977b4762

General

Target

JaffaCakes118_423c6130a471c600f8d376528702fd15.exe
Size

124KB
MD5

423c6130a471c600f8d376528702fd15
SHA1

022e4a467677920b4cc46bcbfaceb35bccf6274c
SHA256

2999f314a6bed51858277069fbaf9ca01d506871d7e7bd4798e76ebc977b4762
SHA512

36608ce1a457c8a358c0752d0975ca7d5e8b44eda87851d6032bd6eeba4bc11cd9d83f77037080a3d7ac98a8f40a63f1dbdea11ae5327fd745f71d7ea3d13210
SSDEEP

3072:/7qXvBlJ9ks1I3cieVDlrJA0iqqyXI5hgsODDjKP:zEvLJys1XieVDBfXEh18S

Score

10^/10

xtremerat discovery persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

dannymatrix.no-ip.org

Signatures

Detect XtremeRAT payload 5 IoCs

resource	yara_rule
behavioral1/memory/2760-5-0x0000000010000000-0x000000001004F000-memory.dmp	family_xtremerat
behavioral1/memory/2760-6-0x0000000010000000-0x000000001004F000-memory.dmp	family_xtremerat
behavioral1/memory/2688-9-0x0000000010000000-0x000000001004F000-memory.dmp	family_xtremerat
behavioral1/memory/2760-15-0x0000000010000000-0x000000001004F000-memory.dmp	family_xtremerat
behavioral1/memory/2688-17-0x0000000010000000-0x000000001004F000-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

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\114download.jpg	DllHost.exe
File created	C:\Windows\SysWOW64\114download.jpg.exe	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe
File created	C:\Windows\SysWOW64\114download.jpg	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2496 set thread context of 2760	2496	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	30

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2760-2-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral1/memory/2760-4-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral1/memory/2760-5-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral1/memory/2760-6-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral1/memory/2688-9-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral1/memory/2760-15-0x0000000010000000-0x000000001004F000-memory.dmp	upx
behavioral1/memory/2688-17-0x0000000010000000-0x000000001004F000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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_423c6130a471c600f8d376528702fd15.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DllHost.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2648	DllHost.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2496	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe
2648	DllHost.exe
2648	DllHost.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 2760	2496	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	30
PID 2496 wrote to memory of 2760	2496	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	30
PID 2496 wrote to memory of 2760	2496	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	30
PID 2496 wrote to memory of 2760	2496	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	30
PID 2496 wrote to memory of 2760	2496	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	30
PID 2496 wrote to memory of 2760	2496	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	30
PID 2496 wrote to memory of 2760	2496	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	30
PID 2496 wrote to memory of 2760	2496	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	30
PID 2496 wrote to memory of 2760	2496	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	30
PID 2760 wrote to memory of 2688	2760	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	31
PID 2760 wrote to memory of 2688	2760	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	31
PID 2760 wrote to memory of 2688	2760	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	31
PID 2760 wrote to memory of 2688	2760	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	31
PID 2760 wrote to memory of 2688	2760	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	31
PID 2760 wrote to memory of 2788	2760	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	32
PID 2760 wrote to memory of 2788	2760	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	32
PID 2760 wrote to memory of 2788	2760	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	32
PID 2760 wrote to memory of 2788	2760	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	32
PID 2760 wrote to memory of 2788	2760	JaffaCakes118_423c6130a471c600f8d376528702fd15.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_423c6130a471c600f8d376528702fd15.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_423c6130a471c600f8d376528702fd15.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_423c6130a471c600f8d376528702fd15.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_423c6130a471c600f8d376528702fd15.exe"
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2760
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2688
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:2788

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:2648

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:\Windows\SysWOW64\114download.jpg

Filesize
8KB

MD5
b91cd44a12943b0010ce0d584767603d

SHA1
53a096d97ff82fd2d3147380c95045e6adfde7ae

SHA256
5e07de2ee02a7b5909733f0ff4800154413a166458e85fe6472e7b7d243a8756

SHA512
d1c210c96a4384f70784d07127cc3a2aa090b9830d04705d688cb347c9d82b471ed53b1a11eaba7d3a918d87d9339c615204439dc782fc85059363788e7b1fde

Download Submit
memory/2648-13-0x00000000001E0000-0x00000000001E2000-memory.dmp

Filesize
8KB

Download
memory/2648-18-0x0000000000430000-0x0000000000431000-memory.dmp

Filesize
4KB

Download
memory/2648-14-0x0000000000430000-0x0000000000431000-memory.dmp

Filesize
4KB

Download
memory/2688-17-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2688-9-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2688-8-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2760-12-0x0000000000500000-0x0000000000502000-memory.dmp

Filesize
8KB

Download
memory/2760-2-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2760-15-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2760-6-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2760-5-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2760-4-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download

Analysis

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