blustealer | e020b424ea22cc6206b882a18f6d1e5e39499982e96bc2dfc9bd461e03d40149

General

Target

Request For Quotation And Sample.pdf.exe
Size

188KB
MD5

c5fac65456d0cf57baa56f43b6935ac6
SHA1

f0128eb5a26160c60a5f41cf1987b34456f21e4c
SHA256

e020b424ea22cc6206b882a18f6d1e5e39499982e96bc2dfc9bd461e03d40149
SHA512

602d4cba9760f5592dfb19fe25eba9fcdb15717977404c602bb56e44e887a3823243a8cf33dfa0f86c217b8289840040cc92d41c19e7424be38269774ab051cd

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/4032-140-0x0000000001000000-0x000000000101A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\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
12	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4940 set thread context of 4380	4940	Request For Quotation And Sample.pdf.exe	82
PID 4380 set thread context of 4032	4380	cvtres.exe	85

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4940	Request For Quotation And Sample.pdf.exe
4940	Request For Quotation And Sample.pdf.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4380	cvtres.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4940	Request For Quotation And Sample.pdf.exe
Token: SeDebugPrivilege	4032	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4380	cvtres.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4940 wrote to memory of 4684	4940	Request For Quotation And Sample.pdf.exe	81
PID 4940 wrote to memory of 4684	4940	Request For Quotation And Sample.pdf.exe	81
PID 4940 wrote to memory of 4684	4940	Request For Quotation And Sample.pdf.exe	81
PID 4940 wrote to memory of 4380	4940	Request For Quotation And Sample.pdf.exe	82
PID 4940 wrote to memory of 4380	4940	Request For Quotation And Sample.pdf.exe	82
PID 4940 wrote to memory of 4380	4940	Request For Quotation And Sample.pdf.exe	82
PID 4940 wrote to memory of 4380	4940	Request For Quotation And Sample.pdf.exe	82
PID 4940 wrote to memory of 4380	4940	Request For Quotation And Sample.pdf.exe	82
PID 4940 wrote to memory of 4380	4940	Request For Quotation And Sample.pdf.exe	82
PID 4940 wrote to memory of 4380	4940	Request For Quotation And Sample.pdf.exe	82
PID 4940 wrote to memory of 4380	4940	Request For Quotation And Sample.pdf.exe	82
PID 4380 wrote to memory of 4032	4380	cvtres.exe	85
PID 4380 wrote to memory of 4032	4380	cvtres.exe	85
PID 4380 wrote to memory of 4032	4380	cvtres.exe	85
PID 4380 wrote to memory of 4032	4380	cvtres.exe	85
PID 4380 wrote to memory of 4032	4380	cvtres.exe	85

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\Request For Quotation And Sample.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Request For Quotation And Sample.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4940
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
  2⤵
  PID:4684
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4380
- - 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:4032

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4032-140-0x0000000001000000-0x000000000101A000-memory.dmp

Filesize
104KB

Download
memory/4032-141-0x0000000005440000-0x00000000054A6000-memory.dmp

Filesize
408KB

Download
memory/4032-142-0x0000000005E10000-0x0000000005EAC000-memory.dmp

Filesize
624KB

Download
memory/4380-133-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4380-135-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4380-138-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4380-143-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4940-130-0x00000000001F0000-0x0000000000222000-memory.dmp

Filesize
200KB

Download

Analysis

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