blustealer | 844f97490d18394f1ded6f22c04c9cbdcc9a07ec9c82fadc96e9566c13d74e0d

General

Target

Revised Order.exe
Size

719KB
MD5

b08e56476b8ff662883f5774c842c94b
SHA1

4d4f8efd50e314753ce3196d843de956cf0db10a
SHA256

6566cde4ba73cc0316c3de8c2c23c90aa6f76bd4d824d45b5b5c1d23d2655d16
SHA512

10b6fb1979044f7e34242943a8e0a85358feeb5df942542afd6d4e519ab19ee1be10fe6bc283009b2c5242f83f45c5897a11da69ae3cd98c7856997caa553df7
SSDEEP

12288:KHSLWwbdVvpc++Zg/2PRmn0DYp3RbXpNkWXKavjkAH4l3iIlhQNXSmNy:cSLWeJpSZgdu8RNCWXKM0iIlgXO

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/2924-145-0x0000000000E20000-0x0000000000E3A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\Outlook\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
63	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1072 set thread context of 4172	1072	Revised Order.exe	93
PID 4172 set thread context of 2924	4172	Revised Order.exe	94

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1072	Revised Order.exe
1072	Revised Order.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4172	Revised Order.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1072	Revised Order.exe
Token: SeDebugPrivilege	2924	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4172	Revised Order.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1072 wrote to memory of 4172	1072	Revised Order.exe	93
PID 1072 wrote to memory of 4172	1072	Revised Order.exe	93
PID 1072 wrote to memory of 4172	1072	Revised Order.exe	93
PID 1072 wrote to memory of 4172	1072	Revised Order.exe	93
PID 1072 wrote to memory of 4172	1072	Revised Order.exe	93
PID 1072 wrote to memory of 4172	1072	Revised Order.exe	93
PID 1072 wrote to memory of 4172	1072	Revised Order.exe	93
PID 1072 wrote to memory of 4172	1072	Revised Order.exe	93
PID 4172 wrote to memory of 2924	4172	Revised Order.exe	94
PID 4172 wrote to memory of 2924	4172	Revised Order.exe	94
PID 4172 wrote to memory of 2924	4172	Revised Order.exe	94
PID 4172 wrote to memory of 2924	4172	Revised Order.exe	94
PID 4172 wrote to memory of 2924	4172	Revised Order.exe	94

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\Revised Order.exe
"C:\Users\Admin\AppData\Local\Temp\Revised Order.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1072
- C:\Users\Admin\AppData\Local\Temp\Revised Order.exe
  "C:\Users\Admin\AppData\Local\Temp\Revised Order.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4172
- - 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:2924

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1072-132-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1072-133-0x00000000054D0000-0x0000000005A74000-memory.dmp

Filesize
5.6MB

Download
memory/1072-134-0x0000000004E40000-0x0000000004ED2000-memory.dmp

Filesize
584KB

Download
memory/1072-135-0x0000000004EF0000-0x0000000004EFA000-memory.dmp

Filesize
40KB

Download
memory/1072-136-0x0000000000DE0000-0x0000000000E7C000-memory.dmp

Filesize
624KB

Download
memory/1072-137-0x00000000070B0000-0x0000000007116000-memory.dmp

Filesize
408KB

Download
memory/2924-145-0x0000000000E20000-0x0000000000E3A000-memory.dmp

Filesize
104KB

Download
memory/4172-139-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4172-141-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4172-146-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download

Analysis

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