4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475

Analysis

max time kernel
149s
max time network
126s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-10-2024 21:51

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe
Size

284KB
MD5

75595a4ebc9137daa39e031400b31248
SHA1

dd824c02974544ac33a1b704baa822425c53cd09
SHA256

4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475
SHA512

e8eaf97bb4d1cc4c6f3cab9a7b008c44bf9f0ee55e0f80ccef59e7d253ce5402a77c3b5b26b498f74edd3f81569922610773f4ad6064aaed3cbb71351a6804d2
SSDEEP

3072:rSQ0EWVwZhKxC5Rt+k60Zh+qw6PYSsszfHZTZJ2lC:rPA6wxmuJspr2l

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

Processes:

svchost.exe

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\52238 = "C:\\PROGRA~3\\LOCALS~1\\Temp\\msuafnie.com"	svchost.exe

Executes dropped EXE 3 IoCs

Processes:

skyrpe.exeskyrpe.exeskyrpe.exe

pid	Process
45492	skyrpe.exe
28280	skyrpe.exe
125400	skyrpe.exe

Loads dropped DLL 5 IoCs

Processes:

4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe

pid	Process
172788	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe
172788	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe
172788	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe
172788	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe
172788	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\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

Processes:

skyrpe.exe

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

Processes:

4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exeskyrpe.exe

description	pid	Process	procid_target
PID 1792 set thread context of 172788	1792	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe	31
PID 45492 set thread context of 28280	45492	skyrpe.exe	36
PID 45492 set thread context of 125400	45492	skyrpe.exe	37

UPX packed file 8 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/172788-53488-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/172788-53487-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/172788-53486-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/172788-53483-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/172788-53481-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/172788-53683-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/172788-106972-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/28280-106982-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

Processes:

svchost.exe

description	ioc	Process
File created	C:\PROGRA~3\LOCALS~1\Temp\msuafnie.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

Processes:

skyrpe.exeskyrpe.exeskyrpe.exesvchost.exe4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.execmd.exereg.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	skyrpe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	skyrpe.exe
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	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

skyrpe.exe

pid	Process
125400	skyrpe.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

skyrpe.exe

pid	Process
125400	skyrpe.exe

Suspicious use of AdjustPrivilegeToken 22 IoCs

Processes:

skyrpe.exe

description	pid	Process
Token: SeDebugPrivilege	28280	skyrpe.exe
Token: SeDebugPrivilege	28280	skyrpe.exe
Token: SeDebugPrivilege	28280	skyrpe.exe
Token: SeDebugPrivilege	28280	skyrpe.exe
Token: SeDebugPrivilege	28280	skyrpe.exe
Token: SeDebugPrivilege	28280	skyrpe.exe
Token: SeDebugPrivilege	28280	skyrpe.exe
Token: SeDebugPrivilege	28280	skyrpe.exe
Token: SeDebugPrivilege	28280	skyrpe.exe
Token: SeDebugPrivilege	28280	skyrpe.exe
Token: SeDebugPrivilege	28280	skyrpe.exe
Token: SeDebugPrivilege	28280	skyrpe.exe
Token: SeDebugPrivilege	28280	skyrpe.exe
Token: SeDebugPrivilege	28280	skyrpe.exe
Token: SeDebugPrivilege	28280	skyrpe.exe
Token: SeDebugPrivilege	28280	skyrpe.exe
Token: SeDebugPrivilege	28280	skyrpe.exe
Token: SeDebugPrivilege	28280	skyrpe.exe
Token: SeDebugPrivilege	28280	skyrpe.exe
Token: SeDebugPrivilege	28280	skyrpe.exe
Token: SeDebugPrivilege	28280	skyrpe.exe
Token: SeDebugPrivilege	28280	skyrpe.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exeskyrpe.exeskyrpe.exe

pid	Process
1792	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe
172788	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe
45492	skyrpe.exe
28280	skyrpe.exe

Suspicious use of WriteProcessMemory 39 IoCs

Processes:

4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.execmd.exeskyrpe.exeskyrpe.exe

description	pid	Process	procid_target
PID 1792 wrote to memory of 172788	1792	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe	31
PID 1792 wrote to memory of 172788	1792	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe	31
PID 1792 wrote to memory of 172788	1792	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe	31
PID 1792 wrote to memory of 172788	1792	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe	31
PID 1792 wrote to memory of 172788	1792	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe	31
PID 1792 wrote to memory of 172788	1792	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe	31
PID 1792 wrote to memory of 172788	1792	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe	31
PID 1792 wrote to memory of 172788	1792	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe	31
PID 172788 wrote to memory of 45408	172788	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe	32
PID 172788 wrote to memory of 45408	172788	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe	32
PID 172788 wrote to memory of 45408	172788	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe	32
PID 172788 wrote to memory of 45408	172788	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe	32
PID 45408 wrote to memory of 45464	45408	cmd.exe	34
PID 45408 wrote to memory of 45464	45408	cmd.exe	34
PID 45408 wrote to memory of 45464	45408	cmd.exe	34
PID 45408 wrote to memory of 45464	45408	cmd.exe	34
PID 172788 wrote to memory of 45492	172788	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe	35
PID 172788 wrote to memory of 45492	172788	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe	35
PID 172788 wrote to memory of 45492	172788	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe	35
PID 172788 wrote to memory of 45492	172788	4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe	35
PID 45492 wrote to memory of 28280	45492	skyrpe.exe	36
PID 45492 wrote to memory of 28280	45492	skyrpe.exe	36
PID 45492 wrote to memory of 28280	45492	skyrpe.exe	36
PID 45492 wrote to memory of 28280	45492	skyrpe.exe	36
PID 45492 wrote to memory of 28280	45492	skyrpe.exe	36
PID 45492 wrote to memory of 28280	45492	skyrpe.exe	36
PID 45492 wrote to memory of 28280	45492	skyrpe.exe	36
PID 45492 wrote to memory of 28280	45492	skyrpe.exe	36
PID 45492 wrote to memory of 125400	45492	skyrpe.exe	37
PID 45492 wrote to memory of 125400	45492	skyrpe.exe	37
PID 45492 wrote to memory of 125400	45492	skyrpe.exe	37
PID 45492 wrote to memory of 125400	45492	skyrpe.exe	37
PID 45492 wrote to memory of 125400	45492	skyrpe.exe	37
PID 45492 wrote to memory of 125400	45492	skyrpe.exe	37
PID 45492 wrote to memory of 125400	45492	skyrpe.exe	37
PID 125400 wrote to memory of 125460	125400	skyrpe.exe	38
PID 125400 wrote to memory of 125460	125400	skyrpe.exe	38
PID 125400 wrote to memory of 125460	125400	skyrpe.exe	38
PID 125400 wrote to memory of 125460	125400	skyrpe.exe	38

C:\Users\Admin\AppData\Local\Temp\4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe
"C:\Users\Admin\AppData\Local\Temp\4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1792
- C:\Users\Admin\AppData\Local\Temp\4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe
  "C:\Users\Admin\AppData\Local\Temp\4c01a58c915b9ba70433b492b41d668baa3952bb49e76dcdf62ddcbcda0ee475.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:172788
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\QALQM.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:45408
  - - 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:45464
- - 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:45492
  - - 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:28280
  - - 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:125400
    - - 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:125460

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

Loading Replay Monitor...

Downloads

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

Filesize
139B

MD5
0654f004b2e314bad7f75867e91da37d

SHA1
4232c22e7340b12108d86e3cb35ed288a3dbc7f1

SHA256
ead325a060300a9606a3f0f14694be39a3e4006a60c6c3eb0bea5d6f98192249

SHA512
dda135cdfca90a742d42b4c7a5e7f5df6580ec428302a8f0c311f5b92eb08dda75774e0c7497110faffbe2dfa02b30d2dfe35ec2848a275f53be8d930c7aa553

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

Filesize
284KB

MD5
8982b277c8a75c3c9b16a08c299ca3be

SHA1
bad9e82ca41fe3a2ccbde5e927165f3daffc36a7

SHA256
94f4c17b31f61e14eeb1ccec4790da4db028433a0ac36b1675ef4cb2f474b293

SHA512
bcf9f89479ca0321acde7c91c7c2343a1a55124b2da5c2fac922a03fc44562e97523c005f2757671fd17ed46086480f22a2a7e706d4089a3d40b9c31d6347d93

Download Submit
memory/1792-12252-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12268-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12250-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12273-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12271-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12270-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12269-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12251-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12267-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12266-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12265-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12263-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-2-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1792-12261-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12259-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12258-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12257-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12256-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12255-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12253-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12262-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12275-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12274-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12249-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12247-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12264-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12260-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12254-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12248-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12272-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1792-12276-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/28280-106982-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/125400-106967-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/172788-53486-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/172788-53485-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/172788-53483-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/172788-53479-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/172788-53481-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/172788-53487-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/172788-53488-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/172788-53683-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/172788-106972-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download