xtremerat | 4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67

General

Target

4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe
Size

512KB
MD5

59692dfa8ebd068beb2892829aa063c6
SHA1

89026cc5c667c95d947485eb79ed3227ebf5d3b6
SHA256

4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67
SHA512

981dab7fcc19289eeabb0d53e05631bb6f4ed87653306a18332f5bca39bf3f5920bacf012386eba0eb3bb84b13ddeff9814776c7f39bc4fdecaeac387027d7a6
SSDEEP

3072:Skq+aXIDTfy2b+tpT/6WK7FwoDIiItTRG5JhR9tM0aQNroC36V9TmxlCirOCUzvJ:S1xygYZR9O0aElXfyfDTR

Score

10^/10

xtremerat persistence rat spyware upx

Malware Config

Extracted

Family

xtremerat

C2

mmm1212.no-ip.biz

Signatures

Detect XtremeRAT payload 6 IoCs

resource	yara_rule
behavioral1/memory/1528-63-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral1/memory/1020-66-0x0000000000000000-mapping.dmp	family_xtremerat
behavioral1/memory/1528-68-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral1/memory/1020-69-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral1/memory/1528-72-0x0000000010000000-0x0000000010048000-memory.dmp	family_xtremerat
behavioral1/memory/1020-73-0x0000000010000000-0x0000000010048000-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

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart"	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe
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\\InstallDir\\Server.exe"	svchost.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1528-57-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral1/memory/1528-62-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral1/memory/1528-63-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral1/memory/1528-68-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral1/memory/1020-69-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral1/memory/1528-72-0x0000000010000000-0x0000000010048000-memory.dmp	upx
behavioral1/memory/1020-73-0x0000000010000000-0x0000000010048000-memory.dmp	upx

Adds Run key to start application 2 TTPs 9 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "㩃啜敳獲䅜浤湩䅜灰慄慴䱜捯污呜浥屰㌴㐴㕣㔱㕦㕣挵㘱㌸㤵㌸㐵㈳㡡扤㝡㙢愲ㄹ㐷换〸㑦㍡摣ㄴㄹ㡦㘱㡤挷㜶攮數"	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe"	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	svchost.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe"	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1328 set thread context of 1528	1328	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe	27

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\InstallDir\	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe
File opened for modification	C:\Windows\InstallDir\Server.exe	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe
File created	C:\Windows\InstallDir\Server.exe	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1328	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe
1528	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1328 wrote to memory of 1528	1328	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe	27
PID 1328 wrote to memory of 1528	1328	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe	27
PID 1328 wrote to memory of 1528	1328	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe	27
PID 1328 wrote to memory of 1528	1328	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe	27
PID 1328 wrote to memory of 1528	1328	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe	27
PID 1328 wrote to memory of 1528	1328	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe	27
PID 1328 wrote to memory of 1528	1328	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe	27
PID 1328 wrote to memory of 1528	1328	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe	27
PID 1328 wrote to memory of 1528	1328	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe	27
PID 1528 wrote to memory of 1020	1528	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe	28
PID 1528 wrote to memory of 1020	1528	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe	28
PID 1528 wrote to memory of 1020	1528	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe	28
PID 1528 wrote to memory of 1020	1528	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe	28
PID 1528 wrote to memory of 1020	1528	4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe	28

C:\Users\Admin\AppData\Local\Temp\4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe
"C:\Users\Admin\AppData\Local\Temp\4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1328
- C:\Users\Admin\AppData\Local\Temp\4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe
  C:\Users\Admin\AppData\Local\Temp\4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67.exe
  2⤵
  - Modifies Installed Components in the registry
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1528
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    - Modifies Installed Components in the registry
    - Adds Run key to start application
    PID:1020

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\InstallDir\Server.exe

Filesize
512KB

MD5
59692dfa8ebd068beb2892829aa063c6

SHA1
89026cc5c667c95d947485eb79ed3227ebf5d3b6

SHA256
4344c515f5c55c168359835432a8dba7b62a9174bc80f4a3cd4191f816d87c67

SHA512
981dab7fcc19289eeabb0d53e05631bb6f4ed87653306a18332f5bca39bf3f5920bacf012386eba0eb3bb84b13ddeff9814776c7f39bc4fdecaeac387027d7a6

Download Submit
memory/1020-64-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/1020-73-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/1020-69-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/1328-59-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1328-54-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1528-63-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/1528-61-0x0000000075FE1000-0x0000000075FE3000-memory.dmp

Filesize
8KB

Download
memory/1528-68-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/1528-70-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1528-62-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/1528-72-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download
memory/1528-57-0x0000000010000000-0x0000000010048000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads