blustealer | 3909f1e1d41d36e0f62bd770841a0a8ea28c2b7d52f2e2fc77457538fbd7a291

General

Target

Revised shipment.pdf.exe
Size

706KB
MD5

f79203454fd766c8189d00c43cfc7485
SHA1

fe44898d206f0b4ef9497e7b7b2e9dedcd4335aa
SHA256

3909f1e1d41d36e0f62bd770841a0a8ea28c2b7d52f2e2fc77457538fbd7a291
SHA512

2b88a745ec24591e5a5b28ade1470416a6bfe2bed86383c276736d0142ddae64bf985cd84772ac00512868f1741f3a7cab555a7a53f95eb5408a582d0fbb8ad1

Score

10^/10

blustealer stormkitty collection stealer

Malware Config

Signatures

BluStealer
A Modular information stealer written in Visual Basic.
stealer blustealer
StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral2/memory/3432-153-0x00000000003A0000-0x00000000003BA000-memory.dmp	family_stormkitty

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-1-5-21-1101907861-274115917-2188613224-1000\Control Panel\International\Geo\Nation	Revised shipment.pdf.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.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
55	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4532 set thread context of 1428	4532	Revised shipment.pdf.exe	100
PID 1428 set thread context of 3432	1428	Revised shipment.pdf.exe	101

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	AppLaunch.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	AppLaunch.exe

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
4224	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
4532	Revised shipment.pdf.exe
4532	Revised shipment.pdf.exe
4532	Revised shipment.pdf.exe
4532	Revised shipment.pdf.exe
4532	Revised shipment.pdf.exe
4532	Revised shipment.pdf.exe
4532	Revised shipment.pdf.exe
4532	Revised shipment.pdf.exe
4532	Revised shipment.pdf.exe
3588	powershell.exe
3588	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4532	Revised shipment.pdf.exe
Token: SeDebugPrivilege	3588	powershell.exe
Token: SeDebugPrivilege	3432	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1428	Revised shipment.pdf.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 4532 wrote to memory of 3588	4532	Revised shipment.pdf.exe	95
PID 4532 wrote to memory of 3588	4532	Revised shipment.pdf.exe	95
PID 4532 wrote to memory of 3588	4532	Revised shipment.pdf.exe	95
PID 4532 wrote to memory of 4224	4532	Revised shipment.pdf.exe	97
PID 4532 wrote to memory of 4224	4532	Revised shipment.pdf.exe	97
PID 4532 wrote to memory of 4224	4532	Revised shipment.pdf.exe	97
PID 4532 wrote to memory of 1652	4532	Revised shipment.pdf.exe	99
PID 4532 wrote to memory of 1652	4532	Revised shipment.pdf.exe	99
PID 4532 wrote to memory of 1652	4532	Revised shipment.pdf.exe	99
PID 4532 wrote to memory of 1428	4532	Revised shipment.pdf.exe	100
PID 4532 wrote to memory of 1428	4532	Revised shipment.pdf.exe	100
PID 4532 wrote to memory of 1428	4532	Revised shipment.pdf.exe	100
PID 4532 wrote to memory of 1428	4532	Revised shipment.pdf.exe	100
PID 4532 wrote to memory of 1428	4532	Revised shipment.pdf.exe	100
PID 4532 wrote to memory of 1428	4532	Revised shipment.pdf.exe	100
PID 4532 wrote to memory of 1428	4532	Revised shipment.pdf.exe	100
PID 4532 wrote to memory of 1428	4532	Revised shipment.pdf.exe	100
PID 1428 wrote to memory of 3432	1428	Revised shipment.pdf.exe	101
PID 1428 wrote to memory of 3432	1428	Revised shipment.pdf.exe	101
PID 1428 wrote to memory of 3432	1428	Revised shipment.pdf.exe	101
PID 1428 wrote to memory of 3432	1428	Revised shipment.pdf.exe	101
PID 1428 wrote to memory of 3432	1428	Revised shipment.pdf.exe	101

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\Revised shipment.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Revised shipment.pdf.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4532
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vEOwgfttl.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3588
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vEOwgfttl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4E8D.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4224
- C:\Users\Admin\AppData\Local\Temp\Revised shipment.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Revised shipment.pdf.exe"
  2⤵
  PID:1652
- C:\Users\Admin\AppData\Local\Temp\Revised shipment.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Revised shipment.pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1428
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    3⤵
    - Accesses Microsoft Outlook profiles
    - Checks processor information in registry
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:3432

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp4E8D.tmp

Filesize
1KB

MD5
762d8995da6581720c7198ce4ebd758e

SHA1
055f5d434d593ace29eb05d6dd7b9ca96c715603

SHA256
e97ced990cc461440c7fa8574c5122183a2cc86e9628240bfce4fadc547e5d83

SHA512
83a38f477f9b857bc032da016b47f139dece11e0420fada50fccc80cae07331728d6a06f8c4037ac376ad57ac1b098c52ecd407e5c2701a217a15e8f4a03d8fd

Download Submit
memory/1428-164-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1428-150-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1428-145-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1428-143-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3432-153-0x00000000003A0000-0x00000000003BA000-memory.dmp

Filesize
104KB

Download
memory/3588-148-0x0000000005120000-0x0000000005186000-memory.dmp

Filesize
408KB

Download
memory/3588-158-0x0000000006D20000-0x0000000006D3A000-memory.dmp

Filesize
104KB

Download
memory/3588-138-0x0000000004480000-0x00000000044B6000-memory.dmp

Filesize
216KB

Download
memory/3588-163-0x0000000007040000-0x0000000007048000-memory.dmp

Filesize
32KB

Download
memory/3588-162-0x0000000007060000-0x000000000707A000-memory.dmp

Filesize
104KB

Download
memory/3588-146-0x0000000004A50000-0x0000000004A72000-memory.dmp

Filesize
136KB

Download
memory/3588-161-0x0000000006F50000-0x0000000006F5E000-memory.dmp

Filesize
56KB

Download
memory/3588-160-0x0000000006FA0000-0x0000000007036000-memory.dmp

Filesize
600KB

Download
memory/3588-151-0x0000000005A20000-0x0000000005A3E000-memory.dmp

Filesize
120KB

Download
memory/3588-159-0x0000000006D90000-0x0000000006D9A000-memory.dmp

Filesize
40KB

Download
memory/3588-141-0x0000000004AF0000-0x0000000005118000-memory.dmp

Filesize
6.2MB

Download
memory/3588-154-0x0000000005FD0000-0x0000000006002000-memory.dmp

Filesize
200KB

Download
memory/3588-155-0x0000000070F10000-0x0000000070F5C000-memory.dmp

Filesize
304KB

Download
memory/3588-156-0x0000000005FB0000-0x0000000005FCE000-memory.dmp

Filesize
120KB

Download
memory/3588-157-0x0000000007360000-0x00000000079DA000-memory.dmp

Filesize
6.5MB

Download
memory/4532-132-0x00000000059B0000-0x0000000005A42000-memory.dmp

Filesize
584KB

Download
memory/4532-133-0x0000000005950000-0x000000000595A000-memory.dmp

Filesize
40KB

Download
memory/4532-134-0x000000000B8B0000-0x000000000B94C000-memory.dmp

Filesize
624KB

Download
memory/4532-130-0x0000000000EF0000-0x0000000000FA8000-memory.dmp

Filesize
736KB

Download
memory/4532-135-0x000000000BBC0000-0x000000000BC26000-memory.dmp

Filesize
408KB

Download
memory/4532-131-0x0000000005EC0000-0x0000000006464000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads