blustealer | 013df4f0d833c4efa3faff7ac1ac571159d8843116a095beaab79651490b0f75

General

Target

346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe
Size

924KB
MD5

6b2874b71838bb35b1bbf5394322cf2a
SHA1

e9f112a2cd8af4359d3833c59421b89dde2f52dd
SHA256

346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53
SHA512

4c315bbc83e1bc418d3bbbc6212a0c42d4aa4b73b4bf8c9f9bc7244b7fc833c5baa105b5c983383720cd04b415fa07d881857daf4efce028c21f947b8ecd261b
SSDEEP

12288:sjVF75eQyMCHA4bPgkgPwqoXYkCkgrQlU2h3Wqzqqj3rZ8D8R/7pkqIwpq:kZ50MEZXYkCTQlU2VWqz9NWA/7R0

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/3080-146-0x0000000000800000-0x000000000081A000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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
115	icanhazip.com

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1444 set thread context of 4252	1444	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	99
PID 4252 set thread context of 3080	4252	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	100
PID 1244 set thread context of 2624	1244	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	104

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 14 IoCs

pid	Process
1444	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe
1444	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe
1444	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe
1444	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe
1444	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe
1444	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe
1444	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe
1444	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe
1444	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe
1244	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe
1244	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe
1244	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe
1244	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe
1244	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4252	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1444	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe
Token: SeDebugPrivilege	3080	AppLaunch.exe
Token: SeDebugPrivilege	1244	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4252	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe
2624	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1444 wrote to memory of 4252	1444	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	99
PID 1444 wrote to memory of 4252	1444	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	99
PID 1444 wrote to memory of 4252	1444	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	99
PID 1444 wrote to memory of 4252	1444	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	99
PID 1444 wrote to memory of 4252	1444	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	99
PID 1444 wrote to memory of 4252	1444	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	99
PID 1444 wrote to memory of 4252	1444	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	99
PID 1444 wrote to memory of 4252	1444	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	99
PID 4252 wrote to memory of 3080	4252	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	100
PID 4252 wrote to memory of 3080	4252	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	100
PID 4252 wrote to memory of 3080	4252	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	100
PID 4252 wrote to memory of 3080	4252	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	100
PID 4252 wrote to memory of 3080	4252	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	100
PID 1244 wrote to memory of 2624	1244	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	104
PID 1244 wrote to memory of 2624	1244	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	104
PID 1244 wrote to memory of 2624	1244	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	104
PID 1244 wrote to memory of 2624	1244	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	104
PID 1244 wrote to memory of 2624	1244	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	104
PID 1244 wrote to memory of 2624	1244	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	104
PID 1244 wrote to memory of 2624	1244	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	104
PID 1244 wrote to memory of 2624	1244	346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe	104

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe
"C:\Users\Admin\AppData\Local\Temp\346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1444
- C:\Users\Admin\AppData\Local\Temp\346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe
  "C:\Users\Admin\AppData\Local\Temp\346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4252
- - 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:3080

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:5064

C:\Users\Admin\AppData\Local\Temp\346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe
"C:\Users\Admin\AppData\Local\Temp\346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1244
- C:\Users\Admin\AppData\Local\Temp\346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe
  "C:\Users\Admin\AppData\Local\Temp\346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:2624

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\346277a4a4b0582ad1e74421617c8d1c33708c0a3803ff2b56ab7bc3af0d7c53.exe.log

Filesize
1KB

MD5
e08f822522c617a40840c62e4b0fb45e

SHA1
ae516dca4da5234be6676d3f234c19ec55725be7

SHA256
bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7

SHA512
894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4

Download Submit
memory/1444-136-0x0000000009AF0000-0x0000000009B8C000-memory.dmp

Filesize
624KB

Download
memory/1444-133-0x0000000005570000-0x0000000005B14000-memory.dmp

Filesize
5.6MB

Download
memory/1444-135-0x0000000005030000-0x000000000503A000-memory.dmp

Filesize
40KB

Download
memory/1444-132-0x0000000000590000-0x000000000067E000-memory.dmp

Filesize
952KB

Download
memory/1444-137-0x0000000000FF0000-0x0000000001056000-memory.dmp

Filesize
408KB

Download
memory/1444-134-0x0000000005060000-0x00000000050F2000-memory.dmp

Filesize
584KB

Download
memory/2624-155-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2624-154-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3080-146-0x0000000000800000-0x000000000081A000-memory.dmp

Filesize
104KB

Download
memory/4252-141-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4252-139-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4252-144-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download

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