blustealer | 32105b378551b810f13bfbfcc4f8c006d26393eec9c802c2f07f4757ffef0f46

General

Target

8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe
Size

1.0MB
MD5

82a1be67742da347df519c0c0b75ed87
SHA1

163e5d1758c7be66a6a3a35d2f9973d209383567
SHA256

02a1835ea805bb1a6ca8d1706fa5a811279ec3fcb1524eb83cfa60f0314cf0dd
SHA512

d2051aa0284e0ab9151417d05eafc037695c32d6bf67512b2c8155ecc303774bdc950c24a658fb88787c4f1c3f6ae8bb0bba2017d90129afcbf484f40baaa4a7
SSDEEP

12288:I5bIINzS9JAJgapke+yoaYRy6Wrq2vElGv9W:qbNzoJ0gakNy9cjWm2UGv

Score

10^/10

blustealer stormkitty collection stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5415235188:AAGqakDD6FZcw5LLX6hH5qVayV-1OGURlEo/sendMessage?chat_id=1372472614

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/756-159-0x0000000001300000-0x000000000131A000-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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe

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\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\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
35	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1612 set thread context of 1996	1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe	95
PID 1996 set thread context of 756	1996	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe	96

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
1512	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe
1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe
1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe
1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe
1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe
1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe
1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe
4208	powershell.exe
4208	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1996	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe
Token: SeDebugPrivilege	4208	powershell.exe
Token: SeDebugPrivilege	756	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1996	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 4208	1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe	91
PID 1612 wrote to memory of 4208	1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe	91
PID 1612 wrote to memory of 4208	1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe	91
PID 1612 wrote to memory of 1512	1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe	94
PID 1612 wrote to memory of 1512	1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe	94
PID 1612 wrote to memory of 1512	1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe	94
PID 1612 wrote to memory of 1996	1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe	95
PID 1612 wrote to memory of 1996	1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe	95
PID 1612 wrote to memory of 1996	1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe	95
PID 1612 wrote to memory of 1996	1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe	95
PID 1612 wrote to memory of 1996	1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe	95
PID 1612 wrote to memory of 1996	1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe	95
PID 1612 wrote to memory of 1996	1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe	95
PID 1612 wrote to memory of 1996	1612	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe	95
PID 1996 wrote to memory of 756	1996	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe	96
PID 1996 wrote to memory of 756	1996	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe	96
PID 1996 wrote to memory of 756	1996	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe	96
PID 1996 wrote to memory of 756	1996	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe	96
PID 1996 wrote to memory of 756	1996	8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe	96

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	AppLaunch.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	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe
"C:\Users\Admin\AppData\Local\Temp\8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1612
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fjuIjtcpvLma.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4208
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fjuIjtcpvLma" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDD6F.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1512
- C:\Users\Admin\AppData\Local\Temp\8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe
  "C:\Users\Admin\AppData\Local\Temp\8819206811368498419730b1dd0d56018e877d004798747b5f2ef2d6b372641a.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1996
- - 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:756

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpDD6F.tmp

Filesize
1KB

MD5
c94f62ce2e7a2b7d1e86d06235530c94

SHA1
f3e8865709d028052062677528f1a3f41c3bfcf6

SHA256
ee67e67421115016a376bb60d3ee9960940210089f755d87f679bed6c5477541

SHA512
21ee8f3ea83a6cf3901344b28a70880b6aeac9af91d89175f99cc8cd25f993ab251db846920ec6e78286b225b06c8d8314cef55a3bf20d743349325ad1d614d6

Download Submit
memory/756-159-0x0000000001300000-0x000000000131A000-memory.dmp

Filesize
104KB

Download
memory/1612-135-0x00000000056C0000-0x00000000056CA000-memory.dmp

Filesize
40KB

Download
memory/1612-137-0x0000000009690000-0x00000000096F6000-memory.dmp

Filesize
408KB

Download
memory/1612-136-0x0000000007FC0000-0x000000000805C000-memory.dmp

Filesize
624KB

Download
memory/1612-134-0x0000000005750000-0x00000000057E2000-memory.dmp

Filesize
584KB

Download
memory/1612-133-0x0000000005C60000-0x0000000006204000-memory.dmp

Filesize
5.6MB

Download
memory/1612-132-0x0000000000C10000-0x0000000000D1E000-memory.dmp

Filesize
1.1MB

Download
memory/1996-165-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1996-151-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1996-144-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1996-146-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4208-148-0x0000000005850000-0x0000000005872000-memory.dmp

Filesize
136KB

Download
memory/4208-157-0x0000000007920000-0x000000000793A000-memory.dmp

Filesize
104KB

Download
memory/4208-152-0x0000000006620000-0x000000000663E000-memory.dmp

Filesize
120KB

Download
memory/4208-153-0x00000000075D0000-0x0000000007602000-memory.dmp

Filesize
200KB

Download
memory/4208-154-0x0000000071370000-0x00000000713BC000-memory.dmp

Filesize
304KB

Download
memory/4208-155-0x0000000006BD0000-0x0000000006BEE000-memory.dmp

Filesize
120KB

Download
memory/4208-156-0x0000000007F70000-0x00000000085EA000-memory.dmp

Filesize
6.5MB

Download
memory/4208-149-0x0000000005920000-0x0000000005986000-memory.dmp

Filesize
408KB

Download
memory/4208-143-0x00000000059E0000-0x0000000006008000-memory.dmp

Filesize
6.2MB

Download
memory/4208-141-0x0000000002D50000-0x0000000002D86000-memory.dmp

Filesize
216KB

Download
memory/4208-160-0x0000000007990000-0x000000000799A000-memory.dmp

Filesize
40KB

Download
memory/4208-161-0x0000000007BA0000-0x0000000007C36000-memory.dmp

Filesize
600KB

Download
memory/4208-162-0x0000000007B50000-0x0000000007B5E000-memory.dmp

Filesize
56KB

Download
memory/4208-163-0x0000000007C60000-0x0000000007C7A000-memory.dmp

Filesize
104KB

Download
memory/4208-164-0x0000000007C40000-0x0000000007C48000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads