52ab9f2e3878dd9fa61c7bbbdfff113485fb4c12f8af0fa28b938696d68e54bb

Analysis

max time kernel
59s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
11/01/2023, 19:21

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General

Target
PO.exe
Size 951KB
Sample230111-x2nnbaea85
SHA256 52ab9f2e3878dd9fa61c7bbbdfff113485fb4c12f8af0fa28b938696d68e54bb
MD5 a3df44994428bfe9b70f9774e76347bb
SHA1 0eac1f1303e55f7c0239af4b1eca3e992ed05693
SHA512 75bf4289be57495b878b06d6bc540911b31508753e8fb4ec1bbeec29dad124de9cdc75e378c657728e0d77278b8973ec5144f886b2305b8688e21572a0c20530
SSDEEP 24576:yli277DjOWEIycmmy7UmCJrYTSKIKTn6ALDx:UiWvhnyc7ytc
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

collection persistence spyware stealer

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	PO.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\WindowUpdate\\WindowUpdate.exe"	PO.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2960 set thread context of 4220	2960	PO.exe	94

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
4628	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4796	powershell.exe
1716	powershell.exe
4796	powershell.exe
1716	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4796	powershell.exe
Token: SeDebugPrivilege	1716	powershell.exe
Token: SeDebugPrivilege	4220	PO.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4220	PO.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2960 wrote to memory of 4796	2960	PO.exe	88
PID 2960 wrote to memory of 4796	2960	PO.exe	88
PID 2960 wrote to memory of 4796	2960	PO.exe	88
PID 2960 wrote to memory of 1716	2960	PO.exe	90
PID 2960 wrote to memory of 1716	2960	PO.exe	90
PID 2960 wrote to memory of 1716	2960	PO.exe	90
PID 2960 wrote to memory of 4628	2960	PO.exe	92
PID 2960 wrote to memory of 4628	2960	PO.exe	92
PID 2960 wrote to memory of 4628	2960	PO.exe	92
PID 2960 wrote to memory of 4220	2960	PO.exe	94
PID 2960 wrote to memory of 4220	2960	PO.exe	94
PID 2960 wrote to memory of 4220	2960	PO.exe	94
PID 2960 wrote to memory of 4220	2960	PO.exe	94
PID 2960 wrote to memory of 4220	2960	PO.exe	94
PID 2960 wrote to memory of 4220	2960	PO.exe	94
PID 2960 wrote to memory of 4220	2960	PO.exe	94
PID 2960 wrote to memory of 4220	2960	PO.exe	94

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe

C:\Users\Admin\AppData\Local\Temp\PO.exe
"C:\Users\Admin\AppData\Local\Temp\PO.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2960
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\PO.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4796
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\xStBrvuHffFYx.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1716
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xStBrvuHffFYx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp690A.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4628
- C:\Users\Admin\AppData\Local\Temp\PO.exe
  "C:\Users\Admin\AppData\Local\Temp\PO.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:4220

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Size 2KB
SHA256 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
MD5 968cb9309758126772781b83adb8a28f
SHA1 8da30e71accf186b2ba11da1797cf67f8f78b47c
SHA512 4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 18KB
SHA256 5b9169fd0cb697ecab40ddff78629c0ead79ebdb24a5c3c41a208aeced220266
MD5 28d98511d9ef875d3764687266cd9b40
SHA1 d0fe392e867e941a1451db5ec3b1a1a2ed18a9c8
SHA512 f033ceb1b754da40ab9fb6c531c129b178ab8dad11b59b6c2a22bef4b790eee6d6ae0b0cc69c074799248f1c800b287d4edeb364d644dfdb9687e6819f76ec47
SSDEEP 384:Xsf+BO9i+Smz2PbBizICKo9oJtEpK6seYLME/h03SoZ2fYSg0jEDkeQ0gdItkKhD:8f6HoNfoJtEpNgrKSpWKEDjCq3
MD5 SHA1 SHA512 SSDEEP

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tmp690A.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp690A.tmp
Size 1KB
SHA256 e4d2646521ea52faf6c65d62a40009042020e8b7b8c1796aaaba4b3f58f94594
MD5 ca9f8289b7ba104ec05e674b133c5c7e
SHA1 99584a451b218765ed5f7ff89d2dfc1befacb618
SHA512 83da00fd9263b04712171b064fcd8a4ba7e06d24b8b447c50888db50669d835769ed7838fbc154d922ef851a33b3310aabfd0e827b12aa60e1313eefcae6940c
MD5 SHA1 SHA512

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memory/1716-144-0x0000000004E50000-0x0000000004EB6000-memory.dmp

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memory/1716-146-0x0000000005630000-0x0000000005696000-memory.dmp

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memory/1716-155-0x0000000007000000-0x000000000700A000-memory.dmp

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memory/1716-154-0x0000000006FA0000-0x0000000006FBA000-memory.dmp

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memory/1716-158-0x00000000072D0000-0x00000000072EA000-memory.dmp

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memory/1716-152-0x00000000061A0000-0x00000000061BE000-memory.dmp

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memory/1716-159-0x00000000072B0000-0x00000000072B8000-memory.dmp

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memory/1716-150-0x00000000719E0000-0x0000000071A2C000-memory.dmp

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memory/1716-157-0x00000000071C0000-0x00000000071CE000-memory.dmp

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memory/1716-148-0x0000000005C80000-0x0000000005C9E000-memory.dmp

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memory/2960-134-0x0000000004F40000-0x0000000004FD2000-memory.dmp

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memory/2960-133-0x0000000005450000-0x00000000059F4000-memory.dmp

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memory/2960-136-0x0000000008940000-0x00000000089DC000-memory.dmp

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memory/2960-132-0x00000000004A0000-0x0000000000594000-memory.dmp

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memory/2960-135-0x0000000004FE0000-0x0000000004FEA000-memory.dmp

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memory/4220-147-0x0000000000400000-0x0000000000430000-memory.dmp

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memory/4220-160-0x0000000006720000-0x0000000006770000-memory.dmp

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memory/4220-161-0x00000000069B0000-0x0000000006B72000-memory.dmp

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memory/4796-140-0x0000000002BB0000-0x0000000002BE6000-memory.dmp

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memory/4796-156-0x0000000007A60000-0x0000000007AF6000-memory.dmp

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memory/4796-153-0x0000000007E20000-0x000000000849A000-memory.dmp

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memory/4796-151-0x00000000719E0000-0x0000000071A2C000-memory.dmp

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memory/4796-149-0x0000000007670000-0x00000000076A2000-memory.dmp

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memory/4796-143-0x0000000005500000-0x0000000005522000-memory.dmp

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memory/4796-141-0x0000000005670000-0x0000000005C98000-memory.dmp

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