63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4ae

Analysis

max time kernel
119s
max time network
114s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
26/11/2024, 16:20

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General

Target

63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe
Size

392KB
MD5

ba9e79d18ddebfea12475648bff84c20
SHA1

fae10ac47d780556c465b98e979e681e7bfc09d0
SHA256

63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4ae
SHA512

e728330069f4c997ff7746f1971e136e39336e016dc4b68477ed8a08e983384051abef83127bd91fe640592284f7d006218d8233695cc79ee1dc73e9233a07bc
SSDEEP

3072:V+ESQ0EWVwZhKxC5Rt+k60Zh+qw6PYSsszfHZTZJ2lbaV2:DPA6wxmuJspr2lb6

Score

8^/10

discovery persistence upx

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\63542 = "C:\\PROGRA~3\\LOCALS~1\\Temp\\mszroow.com"	svchost.exe

Executes dropped EXE 3 IoCs

pid	Process
2372	skyrpe.exe
183796	skyrpe.exe
183860	skyrpe.exe

Loads dropped DLL 5 IoCs

pid	Process
2436	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe
2436	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe
2436	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe
2436	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe
2436	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Skype = "C:\\Users\\Admin\\AppData\\Roaming\\skype\\skyrpe.exe"	reg.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\disk\enum	skyrpe.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	skyrpe.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1840 set thread context of 2436	1840	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe	31
PID 2372 set thread context of 183796	2372	skyrpe.exe	36
PID 2372 set thread context of 183860	2372	skyrpe.exe	37

UPX packed file 16 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1840-0-0x0000000000400000-0x0000000000462000-memory.dmp	upx
behavioral1/memory/1840-223-0x0000000000400000-0x0000000000462000-memory.dmp	upx
behavioral1/memory/2436-53492-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2436-53490-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1840-53489-0x0000000002620000-0x0000000002682000-memory.dmp	upx
behavioral1/memory/2436-53485-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2436-53483-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1840-53491-0x0000000000400000-0x0000000000462000-memory.dmp	upx
behavioral1/memory/2436-53493-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000a000000016ace-53518.dat	upx
behavioral1/memory/2436-53524-0x0000000002820000-0x0000000002882000-memory.dmp	upx
behavioral1/memory/2372-53540-0x0000000000400000-0x0000000000462000-memory.dmp	upx
behavioral1/memory/2436-53690-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2372-53696-0x0000000000400000-0x0000000000462000-memory.dmp	upx
behavioral1/memory/2372-106985-0x0000000000400000-0x0000000000462000-memory.dmp	upx
behavioral1/memory/2436-106988-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\PROGRA~3\LOCALS~1\Temp\mszroow.com	svchost.exe

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 8 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	skyrpe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	skyrpe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	skyrpe.exe

Suspicious behavior: EnumeratesProcesses 41 IoCs

pid	Process
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe
183860	skyrpe.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
183860	skyrpe.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeDebugPrivilege	183796	skyrpe.exe
Token: SeDebugPrivilege	183796	skyrpe.exe
Token: SeDebugPrivilege	183796	skyrpe.exe
Token: SeDebugPrivilege	183796	skyrpe.exe
Token: SeDebugPrivilege	183796	skyrpe.exe
Token: SeDebugPrivilege	183796	skyrpe.exe
Token: SeDebugPrivilege	183796	skyrpe.exe
Token: SeDebugPrivilege	183796	skyrpe.exe
Token: SeDebugPrivilege	183796	skyrpe.exe
Token: SeDebugPrivilege	183796	skyrpe.exe
Token: SeDebugPrivilege	183796	skyrpe.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1840	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe
2436	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe
2372	skyrpe.exe
183796	skyrpe.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 1840 wrote to memory of 2436	1840	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe	31
PID 1840 wrote to memory of 2436	1840	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe	31
PID 1840 wrote to memory of 2436	1840	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe	31
PID 1840 wrote to memory of 2436	1840	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe	31
PID 1840 wrote to memory of 2436	1840	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe	31
PID 1840 wrote to memory of 2436	1840	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe	31
PID 1840 wrote to memory of 2436	1840	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe	31
PID 1840 wrote to memory of 2436	1840	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe	31
PID 2436 wrote to memory of 2588	2436	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe	32
PID 2436 wrote to memory of 2588	2436	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe	32
PID 2436 wrote to memory of 2588	2436	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe	32
PID 2436 wrote to memory of 2588	2436	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe	32
PID 2588 wrote to memory of 2240	2588	cmd.exe	34
PID 2588 wrote to memory of 2240	2588	cmd.exe	34
PID 2588 wrote to memory of 2240	2588	cmd.exe	34
PID 2588 wrote to memory of 2240	2588	cmd.exe	34
PID 2436 wrote to memory of 2372	2436	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe	35
PID 2436 wrote to memory of 2372	2436	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe	35
PID 2436 wrote to memory of 2372	2436	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe	35
PID 2436 wrote to memory of 2372	2436	63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe	35
PID 2372 wrote to memory of 183796	2372	skyrpe.exe	36
PID 2372 wrote to memory of 183796	2372	skyrpe.exe	36
PID 2372 wrote to memory of 183796	2372	skyrpe.exe	36
PID 2372 wrote to memory of 183796	2372	skyrpe.exe	36
PID 2372 wrote to memory of 183796	2372	skyrpe.exe	36
PID 2372 wrote to memory of 183796	2372	skyrpe.exe	36
PID 2372 wrote to memory of 183796	2372	skyrpe.exe	36
PID 2372 wrote to memory of 183796	2372	skyrpe.exe	36
PID 2372 wrote to memory of 183860	2372	skyrpe.exe	37
PID 2372 wrote to memory of 183860	2372	skyrpe.exe	37
PID 2372 wrote to memory of 183860	2372	skyrpe.exe	37
PID 2372 wrote to memory of 183860	2372	skyrpe.exe	37
PID 2372 wrote to memory of 183860	2372	skyrpe.exe	37
PID 2372 wrote to memory of 183860	2372	skyrpe.exe	37
PID 2372 wrote to memory of 183860	2372	skyrpe.exe	37
PID 183860 wrote to memory of 183952	183860	skyrpe.exe	38
PID 183860 wrote to memory of 183952	183860	skyrpe.exe	38
PID 183860 wrote to memory of 183952	183860	skyrpe.exe	38
PID 183860 wrote to memory of 183952	183860	skyrpe.exe	38

C:\Users\Admin\AppData\Local\Temp\63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe
"C:\Users\Admin\AppData\Local\Temp\63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1840
- C:\Users\Admin\AppData\Local\Temp\63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe
  "C:\Users\Admin\AppData\Local\Temp\63d75c26988f36768facb956a6695ee7e9dcea10751d39528b48f3e8b780c4aeN.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2436
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\SQUPX.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2588
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Skype" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe" /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:2240
- - C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe
    "C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2372
  - - C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe
      "C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:183796
  - - C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe
      "C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe"
      4⤵
      Executes dropped EXE
      Maps connected drives based on registry
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:183860
    - - C:\Windows\syswow64\svchost.exe
        
        C:\Windows\syswow64\svchost.exe
        5⤵
        Adds policy Run key to start application
        Drops file in Program Files directory
        System Location Discovery: System Language Discovery
        
        PID:183952

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\SQUPX.bat

Filesize
139B

MD5
0654f004b2e314bad7f75867e91da37d

SHA1
4232c22e7340b12108d86e3cb35ed288a3dbc7f1

SHA256
ead325a060300a9606a3f0f14694be39a3e4006a60c6c3eb0bea5d6f98192249

SHA512
dda135cdfca90a742d42b4c7a5e7f5df6580ec428302a8f0c311f5b92eb08dda75774e0c7497110faffbe2dfa02b30d2dfe35ec2848a275f53be8d930c7aa553

Download Submit
\Users\Admin\AppData\Roaming\skype\skyrpe.exe

Filesize
392KB

MD5
31f110a94de4159195f0d77048162395

SHA1
856b3b752d827cd53d93939ec5897203a560f557

SHA256
91c6043ec20a46431b97c72e50d86fdba65a393206321c8c7976d7c302ae37df

SHA512
52bb2b29e5fd074f993601846167747c4506a6429252e9e89010089a5781052e032f1e411f6b43c6d3ce07689e473a1aa4b830e6b53487701b5bf9e58479367b

Download Submit
memory/1840-53491-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1840-3-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1840-117-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/1840-223-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1840-53489-0x0000000002620000-0x0000000002682000-memory.dmp

Filesize
392KB

Download
memory/1840-0-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2372-106985-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2372-53696-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2372-53540-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2436-53487-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2436-53485-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2436-53481-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2436-53483-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2436-53536-0x0000000002820000-0x0000000002882000-memory.dmp

Filesize
392KB

Download
memory/2436-53535-0x0000000002820000-0x0000000002882000-memory.dmp

Filesize
392KB

Download
memory/2436-53534-0x0000000002820000-0x0000000002882000-memory.dmp

Filesize
392KB

Download
memory/2436-53533-0x0000000002820000-0x0000000002882000-memory.dmp

Filesize
392KB

Download
memory/2436-53524-0x0000000002820000-0x0000000002882000-memory.dmp

Filesize
392KB

Download
memory/2436-53493-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2436-53690-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2436-53691-0x0000000002820000-0x0000000002882000-memory.dmp

Filesize
392KB

Download
memory/2436-53693-0x0000000002820000-0x0000000002882000-memory.dmp

Filesize
392KB

Download
memory/2436-53694-0x0000000002820000-0x0000000002882000-memory.dmp

Filesize
392KB

Download
memory/2436-53695-0x0000000002820000-0x0000000002882000-memory.dmp

Filesize
392KB

Download
memory/2436-53490-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2436-106988-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2436-53492-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/183860-106984-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download