blustealer | c6deef7825e9fc588ee77c25398896ac695e0c02c44276fc4382218807b01e17

General

Target

xt7veCXp-FiO53wlOYiWrGleDALEQnb8Q4IhiAewHhc.exe
Size

943KB
MD5

779aba07d9e38600f5d56b1cdb4b13b3
SHA1

978dbdd1de6938658fd2bb7fa62504bc9854e7df
SHA256

c6deef7825e9fc588ee77c25398896ac695e0c02c44276fc4382218807b01e17
SHA512

c1cb51a4be7c0c76b038aa22bdb3e171e7a07104ca87195f5dd854bfd56b48d101b630addce08d3bae5b86e6cf6ac82c5ce01cf0d2d1c8254b0f3e6c51a743ad
SSDEEP

12288:njm1ajgVIqHZCWRehw84H+ZzF0ImT9JfeDH8EM1xr:cajysjhw+MImTbfmrwxr

Score

10^/10

blustealer stormkitty collection stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5412597166:AAGUaWxuTxxhNb-NRhiURcTMzuW9nhGoEs/sendMessage?chat_id=932962718

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/3908-153-0x0000000000980000-0x000000000099A000-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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	xt7veCXp-FiO53wlOYiWrGleDALEQnb8Q4IhiAewHhc.exe

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
34	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4140 set thread context of 792	4140	xt7veCXp-FiO53wlOYiWrGleDALEQnb8Q4IhiAewHhc.exe	88
PID 792 set thread context of 3908	792	RegSvcs.exe	89

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	AppLaunch.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	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
2024	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1216	powershell.exe
1216	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
792	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1216	powershell.exe
Token: SeDebugPrivilege	3908	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
792	RegSvcs.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4140 wrote to memory of 1216	4140	xt7veCXp-FiO53wlOYiWrGleDALEQnb8Q4IhiAewHhc.exe	84
PID 4140 wrote to memory of 1216	4140	xt7veCXp-FiO53wlOYiWrGleDALEQnb8Q4IhiAewHhc.exe	84
PID 4140 wrote to memory of 1216	4140	xt7veCXp-FiO53wlOYiWrGleDALEQnb8Q4IhiAewHhc.exe	84
PID 4140 wrote to memory of 2024	4140	xt7veCXp-FiO53wlOYiWrGleDALEQnb8Q4IhiAewHhc.exe	86
PID 4140 wrote to memory of 2024	4140	xt7veCXp-FiO53wlOYiWrGleDALEQnb8Q4IhiAewHhc.exe	86
PID 4140 wrote to memory of 2024	4140	xt7veCXp-FiO53wlOYiWrGleDALEQnb8Q4IhiAewHhc.exe	86
PID 4140 wrote to memory of 792	4140	xt7veCXp-FiO53wlOYiWrGleDALEQnb8Q4IhiAewHhc.exe	88
PID 4140 wrote to memory of 792	4140	xt7veCXp-FiO53wlOYiWrGleDALEQnb8Q4IhiAewHhc.exe	88
PID 4140 wrote to memory of 792	4140	xt7veCXp-FiO53wlOYiWrGleDALEQnb8Q4IhiAewHhc.exe	88
PID 4140 wrote to memory of 792	4140	xt7veCXp-FiO53wlOYiWrGleDALEQnb8Q4IhiAewHhc.exe	88
PID 4140 wrote to memory of 792	4140	xt7veCXp-FiO53wlOYiWrGleDALEQnb8Q4IhiAewHhc.exe	88
PID 4140 wrote to memory of 792	4140	xt7veCXp-FiO53wlOYiWrGleDALEQnb8Q4IhiAewHhc.exe	88
PID 4140 wrote to memory of 792	4140	xt7veCXp-FiO53wlOYiWrGleDALEQnb8Q4IhiAewHhc.exe	88
PID 4140 wrote to memory of 792	4140	xt7veCXp-FiO53wlOYiWrGleDALEQnb8Q4IhiAewHhc.exe	88
PID 792 wrote to memory of 3908	792	RegSvcs.exe	89
PID 792 wrote to memory of 3908	792	RegSvcs.exe	89
PID 792 wrote to memory of 3908	792	RegSvcs.exe	89
PID 792 wrote to memory of 3908	792	RegSvcs.exe	89
PID 792 wrote to memory of 3908	792	RegSvcs.exe	89

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\xt7veCXp-FiO53wlOYiWrGleDALEQnb8Q4IhiAewHhc.exe
"C:\Users\Admin\AppData\Local\Temp\xt7veCXp-FiO53wlOYiWrGleDALEQnb8Q4IhiAewHhc.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4140
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\lOtOQV.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1216
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lOtOQV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB43C.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2024
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:792
- - 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:3908

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\tmpB43C.tmp

Filesize
1KB

MD5
101fdfc3cc667336114c755c1563295c

SHA1
a12ad8607e96c67462308d078e227bba821bddd8

SHA256
ab07337c190fa76a03d48aaf81ce537b7a5f44e9620117dae901c0c00b7dae48

SHA512
f98877e4f7c39087d87cf6b97d5c9d4000a703f6d04b16f0fbe98b89b3a90638ee5f0b61753fb2e730b32754cdb0127874df4756f10908a37202f6f325627f3a

Download Submit
memory/792-162-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/792-148-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/792-144-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/792-142-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1216-149-0x0000000005050000-0x0000000005072000-memory.dmp

Filesize
136KB

Download
memory/1216-160-0x0000000007380000-0x000000000738A000-memory.dmp

Filesize
40KB

Download
memory/1216-165-0x0000000007630000-0x0000000007638000-memory.dmp

Filesize
32KB

Download
memory/1216-164-0x0000000007650000-0x000000000766A000-memory.dmp

Filesize
104KB

Download
memory/1216-163-0x0000000007540000-0x000000000754E000-memory.dmp

Filesize
56KB

Download
memory/1216-147-0x0000000005180000-0x00000000057A8000-memory.dmp

Filesize
6.2MB

Download
memory/1216-161-0x0000000007580000-0x0000000007616000-memory.dmp

Filesize
600KB

Download
memory/1216-139-0x0000000004A40000-0x0000000004A76000-memory.dmp

Filesize
216KB

Download
memory/1216-150-0x0000000005920000-0x0000000005986000-memory.dmp

Filesize
408KB

Download
memory/1216-151-0x0000000005B00000-0x0000000005B66000-memory.dmp

Filesize
408KB

Download
memory/1216-159-0x0000000007300000-0x000000000731A000-memory.dmp

Filesize
104KB

Download
memory/1216-158-0x0000000007950000-0x0000000007FCA000-memory.dmp

Filesize
6.5MB

Download
memory/1216-154-0x0000000006000000-0x000000000601E000-memory.dmp

Filesize
120KB

Download
memory/1216-155-0x00000000065E0000-0x0000000006612000-memory.dmp

Filesize
200KB

Download
memory/1216-156-0x0000000070140000-0x000000007018C000-memory.dmp

Filesize
304KB

Download
memory/1216-157-0x00000000065A0000-0x00000000065BE000-memory.dmp

Filesize
120KB

Download
memory/3908-153-0x0000000000980000-0x000000000099A000-memory.dmp

Filesize
104KB

Download
memory/4140-132-0x00000000009C0000-0x0000000000AB2000-memory.dmp

Filesize
968KB

Download
memory/4140-134-0x0000000005540000-0x00000000055D2000-memory.dmp

Filesize
584KB

Download
memory/4140-133-0x0000000005A50000-0x0000000005FF4000-memory.dmp

Filesize
5.6MB

Download
memory/4140-135-0x0000000005480000-0x000000000548A000-memory.dmp

Filesize
40KB

Download
memory/4140-136-0x0000000001260000-0x00000000012FC000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads