9f3d247576ec82fd9b05f65662d1f272e7c9eab8e2892b89425d6690c940fe07

General

Target

adivina.exe
Size

1.3MB
MD5

9d4c3c56d23c1d085d65a8f18e3360c0
SHA1

8a6380f6b1b599c3988cf1246afec9cd815cbf51
SHA256

9f3d247576ec82fd9b05f65662d1f272e7c9eab8e2892b89425d6690c940fe07
SHA512

d11a4213f06fbf702caf376cb1921bd5390b49e38bde1ff94bceeb52bd93e98cb33a2da2b90541b6c4eb3669f68e472b4bbe3d37e6dad229850ebe40bc2558c5
SSDEEP

24576:l5T4A/dXgFI65Ux5PYgMBLVYyLJDI8kz5/40tY6v/87xaVUhffpE03wIzm:l5MA1XgF06gGLVYuJDI8kz5ztY6WhfW/

Score

8^/10

defense_evasion execution persistence

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 5 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4008	powershell.exe
564	powershell.exe
2156	powershell.exe
4824	powershell.exe
868	powershell.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	adivina.exe

Stops running service(s) 4 TTPs
defense_evasion execution

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Service Execution
T1569.002

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\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WsHosts = "C:\\Windows\\WindowsUpdate\\wshosts.exe"	adivina.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\WindowsUpdate\wshosts.exe	adivina.exe
File opened for modification	C:\Windows\WindowsUpdate\wshosts.exe	adivina.exe

Launches sc.exe 2 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2056	sc.exe
752	sc.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
564	powershell.exe
4008	powershell.exe
4008	powershell.exe
2156	powershell.exe
4824	powershell.exe
868	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	564	powershell.exe
Token: SeDebugPrivilege	4008	powershell.exe
Token: SeDebugPrivilege	2156	powershell.exe
Token: SeDebugPrivilege	4824	powershell.exe
Token: SeDebugPrivilege	868	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4456 wrote to memory of 4008	4456	adivina.exe	85
PID 4456 wrote to memory of 4008	4456	adivina.exe	85
PID 4456 wrote to memory of 2056	4456	adivina.exe	86
PID 4456 wrote to memory of 2056	4456	adivina.exe	86
PID 4456 wrote to memory of 564	4456	adivina.exe	87
PID 4456 wrote to memory of 564	4456	adivina.exe	87
PID 4456 wrote to memory of 2156	4456	adivina.exe	88
PID 4456 wrote to memory of 2156	4456	adivina.exe	88
PID 4456 wrote to memory of 4824	4456	adivina.exe	91
PID 4456 wrote to memory of 4824	4456	adivina.exe	91
PID 4456 wrote to memory of 868	4456	adivina.exe	94
PID 4456 wrote to memory of 868	4456	adivina.exe	94
PID 4456 wrote to memory of 752	4456	adivina.exe	95
PID 4456 wrote to memory of 752	4456	adivina.exe	95

C:\Users\Admin\AppData\Local\Temp\adivina.exe
"C:\Users\Admin\AppData\Local\Temp\adivina.exe"
1⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4456
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" "-WindowStyle Hidden -ExecutionPolicy Bypass -File \"C:\Windows\WindowsUpdate\257643\st.ps1\""
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4008
- C:\Windows\system32\sc.exe
  "sc" create WsHosts "binPath= \"C:\Users\Admin\AppData\Local\Temp\adivina.exe\"" "start= auto"
  2⤵
  - Launches sc.exe
  PID:2056
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\temp.ps1"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:564
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" -ExecutionPolicy Bypass -File C:\Windows\System32\svhosts.ps1
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2156
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" -ExecutionPolicy Bypass -File C:\Windows\System32\WindowsUpdate.ps1
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4824
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" -ExecutionPolicy Bypass -File C:\Windows\System32\wins32bugfix.ps1
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:868
- C:\Windows\system32\sc.exe
  "sc" delete WsHosts
  2⤵
  - Launches sc.exe
  PID:752

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

System Services

2

T1569

Service Execution

2

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Defense Evasion

Impair Defenses

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

1

T1489

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
1KB

MD5
25d7ac29d798600ddc5fd880b162958b

SHA1
a2ba91e14155cfa5c26670e17ac606f3f28b0be2

SHA256
3c6d5ecae46dd9f6756e444bc51635cdd9696f3ed9fe0601cf41059a04085f88

SHA512
d91a9028c0fdf3761edbccddaa460573281b7d390efc7dfe3ebef46ce5ede53d36a7148c523e312b5daedc91c11cdb2cc8d0f8b475339cd35dba044595778d45

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
64B

MD5
446dd1cf97eaba21cf14d03aebc79f27

SHA1
36e4cc7367e0c7b40f4a8ace272941ea46373799

SHA256
a7de5177c68a64bd48b36d49e2853799f4ebcfa8e4761f7cc472f333dc5f65cf

SHA512
a6d754709f30b122112ae30e5ab22486393c5021d33da4d1304c061863d2e1e79e8aeb029cae61261bb77d0e7becd53a7b0106d6ea4368b4c302464e3d941cf7

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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_s5uxnz5n.ow4.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/564-7-0x00007FFE0C5E3000-0x00007FFE0C5E5000-memory.dmp

Filesize
8KB

Download
memory/564-13-0x0000027618E50000-0x0000027618E72000-memory.dmp

Filesize
136KB

Download
memory/564-23-0x00007FFE0C5E0000-0x00007FFE0D0A1000-memory.dmp

Filesize
10.8MB

Download
memory/564-84-0x00007FFE0C5E0000-0x00007FFE0D0A1000-memory.dmp

Filesize
10.8MB

Download
memory/4008-24-0x00007FFE0C5E0000-0x00007FFE0D0A1000-memory.dmp

Filesize
10.8MB

Download
memory/4008-25-0x00007FFE0C5E0000-0x00007FFE0D0A1000-memory.dmp

Filesize
10.8MB

Download
memory/4008-35-0x00007FFE0C5E0000-0x00007FFE0D0A1000-memory.dmp

Filesize
10.8MB

Download
memory/4008-38-0x00007FFE0C5E0000-0x00007FFE0D0A1000-memory.dmp

Filesize
10.8MB

Download
memory/4456-83-0x00007FF6B31B0000-0x00007FF6B32A6000-memory.dmp

Filesize
984KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads