xtremerat | 4e833a9595653d4c0a799e912f3d1310f24415f964a4e81302dcca75027aa0b8

General

Target

fb7b3668db7296ff35e0b20bbd210ea6_JaffaCakes118.exe
Size

33KB
MD5

fb7b3668db7296ff35e0b20bbd210ea6
SHA1

25cf3c76a2bcd1907dee6da48facbdd28ccf2149
SHA256

4e833a9595653d4c0a799e912f3d1310f24415f964a4e81302dcca75027aa0b8
SHA512

d302c8d1bd9ab31f0df79be29e54eaf8eba153410773ece98127222484db479a599bb726a86836766372d7106d8a7db9a85fccbe1ac5869ebd6596139794fe6f
SSDEEP

768:2MuijtHf5g7/IIG3bGcYDBSvFIWuePQtv66lRtz76O8Lh:jNW71rcYDAWeotvXlXiO

Score

10^/10

xtremerat persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

pho3nix.no-ip.biz

Signatures

Detect XtremeRAT payload 8 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2352-3-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/2088-6-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/1956-7-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/2088-10-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/2088-12-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/2088-11-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/2352-14-0x0000000010000000-0x000000001004D000-memory.dmp	family_xtremerat
behavioral1/memory/2088-15-0x0000000010000000-0x000000001004D000-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

Modifies Installed Components in the registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exeexplorer.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\system32\\assembly\\winrar.exe"	svchost.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\system32\\assembly\\winrar.exe restart"	explorer.exe

Deletes itself 1 IoCs

Processes:

explorer.exe

pid process

2088 explorer.exe

pid	process
2088	explorer.exe

UPX packed file 10 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1956-0-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2352-3-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2088-6-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/1956-7-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2088-10-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2088-12-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2088-11-0x0000000010000000-0x000000001004D000-memory.dmp	upx
C:\Windows\SysWOW64\assembly\winrar.exe	upx
behavioral1/memory/2352-14-0x0000000010000000-0x000000001004D000-memory.dmp	upx
behavioral1/memory/2088-15-0x0000000010000000-0x000000001004D000-memory.dmp	upx

Adds Run key to start application 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exeexplorer.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\system32\\assembly\\winrar.exe"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\assembly\\winrar.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\system32\\assembly\\winrar.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\assembly\\winrar.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "winrar 5"	explorer.exe

Drops file in System32 directory 3 IoCs

Processes:

explorer.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\assembly\winrar.exe	explorer.exe
File created	C:\Windows\SysWOW64\assembly\winrar.exe	explorer.exe
File opened for modification	C:\Windows\SysWOW64\assembly\	explorer.exe

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

System Information Discovery
T1082
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

explorer.exe

pid process

2088 explorer.exe

pid	process
2088	explorer.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

fb7b3668db7296ff35e0b20bbd210ea6_JaffaCakes118.exe

description	pid	process	target process
PID 1956 wrote to memory of 2352	1956	fb7b3668db7296ff35e0b20bbd210ea6_JaffaCakes118.exe	svchost.exe
PID 1956 wrote to memory of 2352	1956	fb7b3668db7296ff35e0b20bbd210ea6_JaffaCakes118.exe	svchost.exe
PID 1956 wrote to memory of 2352	1956	fb7b3668db7296ff35e0b20bbd210ea6_JaffaCakes118.exe	svchost.exe
PID 1956 wrote to memory of 2352	1956	fb7b3668db7296ff35e0b20bbd210ea6_JaffaCakes118.exe	svchost.exe
PID 1956 wrote to memory of 2352	1956	fb7b3668db7296ff35e0b20bbd210ea6_JaffaCakes118.exe	svchost.exe
PID 1956 wrote to memory of 2088	1956	fb7b3668db7296ff35e0b20bbd210ea6_JaffaCakes118.exe	explorer.exe
PID 1956 wrote to memory of 2088	1956	fb7b3668db7296ff35e0b20bbd210ea6_JaffaCakes118.exe	explorer.exe
PID 1956 wrote to memory of 2088	1956	fb7b3668db7296ff35e0b20bbd210ea6_JaffaCakes118.exe	explorer.exe
PID 1956 wrote to memory of 2088	1956	fb7b3668db7296ff35e0b20bbd210ea6_JaffaCakes118.exe	explorer.exe
PID 1956 wrote to memory of 2088	1956	fb7b3668db7296ff35e0b20bbd210ea6_JaffaCakes118.exe	explorer.exe

C:\Users\Admin\AppData\Local\Temp\fb7b3668db7296ff35e0b20bbd210ea6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fb7b3668db7296ff35e0b20bbd210ea6_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1956

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Modifies Installed Components in the registry
- Adds Run key to start application
PID:2352

C:\Windows\SysWOW64\explorer.exe
explorer.exe
2⤵
- Modifies Installed Components in the registry
- Deletes itself
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
PID:2088

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Windows\SysWOW64\assembly\winrar.exe
Filesize
33KB

MD5
fb7b3668db7296ff35e0b20bbd210ea6

SHA1
25cf3c76a2bcd1907dee6da48facbdd28ccf2149

SHA256
4e833a9595653d4c0a799e912f3d1310f24415f964a4e81302dcca75027aa0b8

SHA512
d302c8d1bd9ab31f0df79be29e54eaf8eba153410773ece98127222484db479a599bb726a86836766372d7106d8a7db9a85fccbe1ac5869ebd6596139794fe6f

Download Submit
memory/1956-0-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/1956-7-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2088-6-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2088-10-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2088-12-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2088-11-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2088-15-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2352-1-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2352-3-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download
memory/2352-14-0x0000000010000000-0x000000001004D000-memory.dmp

Filesize
308KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads