82ab9d37986ad4b195bcd03eb2bd6e53b731dd65ac4a2a936f70e42db72a3e8b

Analysis

max time kernel
151s
max time network
128s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
11/10/2023, 23:02

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

82ab9d37986ad4b195bcd03eb2bd6e53b731dd65ac4a2a936f70e42db72a3e8b.exe
Size

3.8MB
MD5

265f98db992f18287d3c497ee8e3c1fe
SHA1

df10dbf89e1deb45315c643f2ae055a2b90195a8
SHA256

82ab9d37986ad4b195bcd03eb2bd6e53b731dd65ac4a2a936f70e42db72a3e8b
SHA512

f359c8635c352666762103f816f1f1af022ac681687423eea33600bcffdf5d803418234a8ad2377b991f5a18457e3f99a3e50f1115eac0f5c301e0588dd433d1
SSDEEP

49152:kz+XPwh11sXIAyT9tN93qs5SkP2lS1mdM03aT1Po3Xa+kINX7:k2Ps1sByTJ5SQrWM03o12a+kINr

Score

7^/10

discovery upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2520	cmd.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2560	icacls.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2892-0-0x0000000000D60000-0x0000000000DF7000-memory.dmp	upx
behavioral1/memory/2892-31-0x0000000000D60000-0x0000000000DF7000-memory.dmp	upx
behavioral1/memory/2892-34-0x0000000000D60000-0x0000000000DF7000-memory.dmp	upx
behavioral1/memory/2892-36-0x0000000000D60000-0x0000000000DF7000-memory.dmp	upx

Drops file in Windows directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\WindowsShell7264605.log	82ab9d37986ad4b195bcd03eb2bd6e53b731dd65ac4a2a936f70e42db72a3e8b.exe
File opened for modification	C:\Windows\WindowSystemNewUpdate448.log	rasautou.exe
File opened for modification	C:\Windows\WindowsShell2226.log	rasautou.exe
File opened for modification	C:\Windows\WindowTerminalVaild874.log	rasautou.exe
File opened for modification	C:\Windows\WindowMicrosoftNET53.log	rasautou.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2300	1320	WerFault.exe	36

Suspicious behavior: EnumeratesProcesses 48 IoCs

pid	Process
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe
2368	rasautou.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2892	82ab9d37986ad4b195bcd03eb2bd6e53b731dd65ac4a2a936f70e42db72a3e8b.exe
Token: SeDebugPrivilege	2368	rasautou.exe
Token: SeIncBasePriorityPrivilege	2892	82ab9d37986ad4b195bcd03eb2bd6e53b731dd65ac4a2a936f70e42db72a3e8b.exe
Token: SeDebugPrivilege	2368	rasautou.exe
Token: SeDebugPrivilege	2368	rasautou.exe
Token: SeDebugPrivilege	2368	rasautou.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 2892 wrote to memory of 2368	2892	82ab9d37986ad4b195bcd03eb2bd6e53b731dd65ac4a2a936f70e42db72a3e8b.exe	28
PID 2892 wrote to memory of 2368	2892	82ab9d37986ad4b195bcd03eb2bd6e53b731dd65ac4a2a936f70e42db72a3e8b.exe	28
PID 2892 wrote to memory of 2368	2892	82ab9d37986ad4b195bcd03eb2bd6e53b731dd65ac4a2a936f70e42db72a3e8b.exe	28
PID 2892 wrote to memory of 2368	2892	82ab9d37986ad4b195bcd03eb2bd6e53b731dd65ac4a2a936f70e42db72a3e8b.exe	28
PID 2892 wrote to memory of 2368	2892	82ab9d37986ad4b195bcd03eb2bd6e53b731dd65ac4a2a936f70e42db72a3e8b.exe	28
PID 2892 wrote to memory of 2368	2892	82ab9d37986ad4b195bcd03eb2bd6e53b731dd65ac4a2a936f70e42db72a3e8b.exe	28
PID 2892 wrote to memory of 2368	2892	82ab9d37986ad4b195bcd03eb2bd6e53b731dd65ac4a2a936f70e42db72a3e8b.exe	28
PID 2892 wrote to memory of 2520	2892	82ab9d37986ad4b195bcd03eb2bd6e53b731dd65ac4a2a936f70e42db72a3e8b.exe	30
PID 2892 wrote to memory of 2520	2892	82ab9d37986ad4b195bcd03eb2bd6e53b731dd65ac4a2a936f70e42db72a3e8b.exe	30
PID 2892 wrote to memory of 2520	2892	82ab9d37986ad4b195bcd03eb2bd6e53b731dd65ac4a2a936f70e42db72a3e8b.exe	30
PID 2892 wrote to memory of 2520	2892	82ab9d37986ad4b195bcd03eb2bd6e53b731dd65ac4a2a936f70e42db72a3e8b.exe	30
PID 2368 wrote to memory of 2560	2368	rasautou.exe	34
PID 2368 wrote to memory of 2560	2368	rasautou.exe	34
PID 2368 wrote to memory of 2560	2368	rasautou.exe	34
PID 2368 wrote to memory of 2560	2368	rasautou.exe	34
PID 2368 wrote to memory of 2560	2368	rasautou.exe	34
PID 2368 wrote to memory of 2560	2368	rasautou.exe	34
PID 2368 wrote to memory of 2560	2368	rasautou.exe	34
PID 2560 wrote to memory of 1320	2560	icacls.exe	36
PID 2560 wrote to memory of 1320	2560	icacls.exe	36
PID 2560 wrote to memory of 1320	2560	icacls.exe	36
PID 2560 wrote to memory of 1320	2560	icacls.exe	36
PID 2368 wrote to memory of 1320	2368	rasautou.exe	36
PID 2368 wrote to memory of 1320	2368	rasautou.exe	36
PID 2368 wrote to memory of 1320	2368	rasautou.exe	36
PID 1320 wrote to memory of 2300	1320	fontview.exe	37
PID 1320 wrote to memory of 2300	1320	fontview.exe	37
PID 1320 wrote to memory of 2300	1320	fontview.exe	37
PID 1320 wrote to memory of 2300	1320	fontview.exe	37

C:\Users\Admin\AppData\Local\Temp\82ab9d37986ad4b195bcd03eb2bd6e53b731dd65ac4a2a936f70e42db72a3e8b.exe
"C:\Users\Admin\AppData\Local\Temp\82ab9d37986ad4b195bcd03eb2bd6e53b731dd65ac4a2a936f70e42db72a3e8b.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2892
- C:\Windows\SysWOW64\rasautou.exe
  "C:\Windows\SysWOW64\rasautou.exe"
  2⤵
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2368
- - C:\Windows\SysWOW64\icacls.exe
    "C:\Windows\SysWOW64\icacls.exe"
    3⤵
    - Modifies file permissions
    - Suspicious use of WriteProcessMemory
    PID:2560
  - - C:\Windows\SysWOW64\fontview.exe
      "C:\Windows\SysWOW64\fontview.exe"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1320
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1320 -s 184
        5⤵
        Program crash
        
        PID:2300
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\82AB9D~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2520

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\WindowSystemNewUpdate448.log

Filesize
5KB

MD5
7fa734057f8f282e608829de32be11fc

SHA1
d557333840834f94ee2173c3244796cfe481c81b

SHA256
2c02db87843789ddfcdca0f787ec178530b1ad0b098a342d946a3a6ef11da990

SHA512
6d665c647f3bee6f5f130f1eebd4a6a9fe92befa7884d96855f7b2c25b3d2d0d2e67693af189b4da085317ae5d67c102aa5d99b6327c364dd394afeef7d0de41

Download Submit
memory/1320-105-0x0000000000510000-0x0000000000B14000-memory.dmp

Filesize
6.0MB

Download
memory/1320-109-0x0000000000510000-0x0000000000B14000-memory.dmp

Filesize
6.0MB

Download
memory/1320-107-0x0000000000510000-0x0000000000B14000-memory.dmp

Filesize
6.0MB

Download
memory/1320-106-0x0000000000510000-0x0000000000B14000-memory.dmp

Filesize
6.0MB

Download
memory/2368-40-0x0000000003270000-0x000000000375B000-memory.dmp

Filesize
4.9MB

Download
memory/2368-9-0x0000000000220000-0x000000000023B000-memory.dmp

Filesize
108KB

Download
memory/2368-10-0x0000000000220000-0x000000000023B000-memory.dmp

Filesize
108KB

Download
memory/2368-11-0x0000000010000000-0x0000000010057000-memory.dmp

Filesize
348KB

Download
memory/2368-2-0x00000000000E0000-0x0000000000147000-memory.dmp

Filesize
412KB

Download
memory/2368-3-0x00000000000E0000-0x0000000000147000-memory.dmp

Filesize
412KB

Download
memory/2368-4-0x00000000000E0000-0x0000000000147000-memory.dmp

Filesize
412KB

Download
memory/2368-5-0x00000000000E0000-0x0000000000147000-memory.dmp

Filesize
412KB

Download
memory/2368-50-0x00000000009D0000-0x0000000000A08000-memory.dmp

Filesize
224KB

Download
memory/2368-61-0x0000000002870000-0x00000000028D7000-memory.dmp

Filesize
412KB

Download
memory/2368-7-0x0000000000220000-0x000000000023B000-memory.dmp

Filesize
108KB

Download
memory/2560-101-0x00000000000A0000-0x00000000000C4000-memory.dmp

Filesize
144KB

Download
memory/2560-96-0x0000000000080000-0x000000000009F000-memory.dmp

Filesize
124KB

Download
memory/2560-94-0x0000000000080000-0x000000000009F000-memory.dmp

Filesize
124KB

Download
memory/2560-99-0x00000000000A0000-0x00000000000C4000-memory.dmp

Filesize
144KB

Download
memory/2560-97-0x00000000000A0000-0x00000000000C4000-memory.dmp

Filesize
144KB

Download
memory/2560-95-0x0000000000080000-0x000000000009F000-memory.dmp

Filesize
124KB

Download
memory/2560-92-0x0000000000080000-0x000000000009F000-memory.dmp

Filesize
124KB

Download
memory/2892-0-0x0000000000D60000-0x0000000000DF7000-memory.dmp

Filesize
604KB

Download
memory/2892-36-0x0000000000D60000-0x0000000000DF7000-memory.dmp

Filesize
604KB

Download
memory/2892-34-0x0000000000D60000-0x0000000000DF7000-memory.dmp

Filesize
604KB

Download
memory/2892-31-0x0000000000D60000-0x0000000000DF7000-memory.dmp

Filesize
604KB

Download