7702ef79070ed9e1da8bdc52c5b5928b0bcada2eaa515488bd8e1a9967cb4a64

Analysis

max time kernel
91s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
15/06/2022, 18:13

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General

Target
SPEC_T56738.exe
Size 16KB
Sample220615-wtql9sddb3
SHA256 7702ef79070ed9e1da8bdc52c5b5928b0bcada2eaa515488bd8e1a9967cb4a64
MD5 885401de3dec428de16607d4413f808a
SHA1 af11a000ae8aef076a9b21dd05e3d3bef4c42387
SHA512 669a703776e1a07bf5db6bfff7b933fce676d7899d0880577cdac46990802635cebeebe4801c9fe5e0e3fc632a87c2cfd811fb9eb323759cbb1997d5339ee468
MD5 SHA1 SHA512

Score

7^/10

collection

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-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	SPEC_T56738.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
29	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4420 set thread context of 4572	4420	SPEC_T56738.exe	94

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1880	timeout.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
4976	powershell.exe
4976	powershell.exe
4420	SPEC_T56738.exe
4420	SPEC_T56738.exe
4572	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4976	powershell.exe
Token: SeDebugPrivilege	4420	SPEC_T56738.exe
Token: SeDebugPrivilege	4572	MSBuild.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4572	MSBuild.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4420 wrote to memory of 4976	4420	SPEC_T56738.exe	82
PID 4420 wrote to memory of 4976	4420	SPEC_T56738.exe	82
PID 4420 wrote to memory of 4976	4420	SPEC_T56738.exe	82
PID 4420 wrote to memory of 4952	4420	SPEC_T56738.exe	90
PID 4420 wrote to memory of 4952	4420	SPEC_T56738.exe	90
PID 4420 wrote to memory of 4952	4420	SPEC_T56738.exe	90
PID 4952 wrote to memory of 1880	4952	cmd.exe	92
PID 4952 wrote to memory of 1880	4952	cmd.exe	92
PID 4952 wrote to memory of 1880	4952	cmd.exe	92
PID 4420 wrote to memory of 4572	4420	SPEC_T56738.exe	94
PID 4420 wrote to memory of 4572	4420	SPEC_T56738.exe	94
PID 4420 wrote to memory of 4572	4420	SPEC_T56738.exe	94
PID 4420 wrote to memory of 4572	4420	SPEC_T56738.exe	94
PID 4420 wrote to memory of 4572	4420	SPEC_T56738.exe	94
PID 4420 wrote to memory of 4572	4420	SPEC_T56738.exe	94
PID 4420 wrote to memory of 4572	4420	SPEC_T56738.exe	94
PID 4420 wrote to memory of 4572	4420	SPEC_T56738.exe	94
PID 4572 wrote to memory of 5056	4572	MSBuild.exe	95
PID 4572 wrote to memory of 5056	4572	MSBuild.exe	95
PID 4572 wrote to memory of 5056	4572	MSBuild.exe	95

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\SPEC_T56738.exe
"C:\Users\Admin\AppData\Local\Temp\SPEC_T56738.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4420
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell" Start-Sleep -Seconds 10;Start-Sleep -Seconds 10;
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4976
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout 20
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4952
- - C:\Windows\SysWOW64\timeout.exe
    timeout 20
    3⤵
    - Delays execution with timeout.exe
    PID:1880
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:4572
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    PID:5056

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/4420-130-0x0000000000EA0000-0x0000000000EAA000-memory.dmp

Download

memory/4420-142-0x0000000006680000-0x0000000006712000-memory.dmp

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memory/4572-149-0x0000000006E90000-0x0000000006E9A000-memory.dmp

Download

memory/4572-148-0x0000000006900000-0x0000000006AC2000-memory.dmp

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memory/4572-146-0x0000000005910000-0x00000000059AC000-memory.dmp

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memory/4572-145-0x0000000005C90000-0x0000000006234000-memory.dmp

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memory/4572-144-0x0000000000400000-0x0000000000456000-memory.dmp

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memory/4976-139-0x0000000006CF0000-0x0000000006D0A000-memory.dmp

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memory/4976-138-0x0000000008040000-0x00000000086BA000-memory.dmp

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memory/4976-137-0x00000000067D0000-0x00000000067EE000-memory.dmp

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memory/4976-136-0x0000000006180000-0x00000000061E6000-memory.dmp

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memory/4976-135-0x0000000005940000-0x00000000059A6000-memory.dmp

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memory/4976-134-0x0000000005910000-0x0000000005932000-memory.dmp

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memory/4976-133-0x00000000059E0000-0x0000000006008000-memory.dmp

Download

memory/4976-132-0x0000000005220000-0x0000000005256000-memory.dmp

Download