5bbe20646d38c2bb4bc38650649633c5a78522a6ea2f09f04cb6be0f3075544e

Analysis

max time kernel
128s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
22/03/2022, 05:53

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General

Target
BPC-0040910-pdf.exe
Size 26KB
Sample220322-glbe2seec4
SHA256 5bbe20646d38c2bb4bc38650649633c5a78522a6ea2f09f04cb6be0f3075544e
MD5 5f2266f12326663ac3af2262602454b3
SHA1 2d99c2ec11999abe23673b50f2417c1611f189d3
SHA512 9f32e530291b37205b75811c2ba5a7eecbe38e37e5d7e4f208ddfb6a107c947259fcbdbb612d0ad4c57f43a467f1c67d9d317739210afe9ac749380138dc3c4b
MD5 SHA1 SHA512

Score

10^/10

collection persistence spyware stealer

Malware Config

Extracted

Credentials

Protocol
smtp
Host
server240.web-hosting.com
Port
587
Username
[email protected]
Password
Success4sure2day10@

Signatures

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	BPC-0040910-pdf.exe

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-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	BPC-0040910-pdf.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-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BPC-0040910-pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BPC-0040910-pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BPC-0040910-pdf.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-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Nkglawf = "\"C:\\Users\\Admin\\AppData\\Roaming\\Glwhxx\\Nkglawf.exe\""	BPC-0040910-pdf.exe

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 2 IoCs

evasion

pid	Process
3652	timeout.exe
4240	timeout.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2228	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
664	BPC-0040910-pdf.exe
664	BPC-0040910-pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	664	BPC-0040910-pdf.exe
Token: SeDebugPrivilege	664	BPC-0040910-pdf.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 664 wrote to memory of 4764	664	BPC-0040910-pdf.exe	81
PID 664 wrote to memory of 4764	664	BPC-0040910-pdf.exe	81
PID 664 wrote to memory of 4764	664	BPC-0040910-pdf.exe	81
PID 4764 wrote to memory of 3652	4764	cmd.exe	83
PID 4764 wrote to memory of 3652	4764	cmd.exe	83
PID 4764 wrote to memory of 3652	4764	cmd.exe	83
PID 4764 wrote to memory of 2228	4764	cmd.exe	91
PID 4764 wrote to memory of 2228	4764	cmd.exe	91
PID 4764 wrote to memory of 2228	4764	cmd.exe	91
PID 664 wrote to memory of 3148	664	BPC-0040910-pdf.exe	92
PID 664 wrote to memory of 3148	664	BPC-0040910-pdf.exe	92
PID 664 wrote to memory of 3148	664	BPC-0040910-pdf.exe	92
PID 3148 wrote to memory of 4240	3148	cmd.exe	94
PID 3148 wrote to memory of 4240	3148	cmd.exe	94
PID 3148 wrote to memory of 4240	3148	cmd.exe	94

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BPC-0040910-pdf.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BPC-0040910-pdf.exe

C:\Users\Admin\AppData\Local\Temp\BPC-0040910-pdf.exe
"C:\Users\Admin\AppData\Local\Temp\BPC-0040910-pdf.exe"
1⤵
- Drops file in Drivers directory
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:664
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout -t 15 -nobreak && ping google.com
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4764
- - C:\Windows\SysWOW64\timeout.exe
    timeout -t 15 -nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:3652
- - C:\Windows\SysWOW64\PING.EXE
    ping google.com
    3⤵
    - Runs ping.exe
    PID:2228
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout 40
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3148
- - C:\Windows\SysWOW64\timeout.exe
    timeout 40
    3⤵
    - Delays execution with timeout.exe
    PID:4240

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

Remote System Discovery

T1018

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

memory/664-130-0x00000000003F0000-0x00000000003FE000-memory.dmp

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memory/664-131-0x0000000074440000-0x0000000074BF0000-memory.dmp

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memory/664-132-0x0000000005180000-0x0000000005724000-memory.dmp

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memory/664-133-0x0000000004BD0000-0x0000000005174000-memory.dmp

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memory/664-134-0x0000000006220000-0x0000000006270000-memory.dmp

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memory/664-135-0x0000000006310000-0x00000000063A2000-memory.dmp

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memory/664-136-0x0000000004D20000-0x0000000004D2A000-memory.dmp

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memory/664-137-0x0000000006500000-0x00000000065B2000-memory.dmp

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memory/664-138-0x00000000008E0000-0x00000000008E1000-memory.dmp

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memory/664-139-0x0000000000CB0000-0x0000000000CEA000-memory.dmp

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memory/664-140-0x0000000006960000-0x00000000069FC000-memory.dmp

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memory/664-141-0x00000000072A0000-0x0000000007306000-memory.dmp

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memory/664-142-0x0000000004BD0000-0x0000000005174000-memory.dmp

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memory/664-143-0x0000000004BD0000-0x0000000005174000-memory.dmp

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memory/664-144-0x0000000004BD0000-0x0000000005174000-memory.dmp

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