blustealer | 54c419e5d402c052ca814fa728a82fdb2cfd67788960112429ef2f4734e9c866

General

Target

doc 202209200099010100101.exe
Size

775KB
MD5

208ea4fa3dacf520513730003b3849ff
SHA1

218f95bb8e3e032c6b182197df35ee55579aba67
SHA256

54c419e5d402c052ca814fa728a82fdb2cfd67788960112429ef2f4734e9c866
SHA512

ea5070ce837bca364be4e6f42fae5cf2e831c6486abf74e90d1de9fcb6277bdf51fb3859dcf1f97745a9a3848097219835359e16a2cd953d48212b3cf666f0ea
SSDEEP

12288:Efhcgyb1Qj5eeJe194GwyU0ao1SS5GMT4h3mOvud94f2:EfPySj5eEgw9oIS5JeWqud94f2

Score

10^/10

blustealer stormkitty collection stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5617443580:AAFX8iYrXMCASkw95O815OVGuLWLdSgh8Qo/sendMessage?chat_id=5334267822

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 4 IoCs

resource	yara_rule
behavioral1/memory/316-79-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/316-80-0x00000000000A4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/316-82-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/316-84-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\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
4	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2012 set thread context of 1608	2012	doc 202209200099010100101.exe	32
PID 1608 set thread context of 316	1608	doc 202209200099010100101.exe	33

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

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
1292	schtasks.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
2012	doc 202209200099010100101.exe
2012	doc 202209200099010100101.exe
2012	doc 202209200099010100101.exe
2012	doc 202209200099010100101.exe
2012	doc 202209200099010100101.exe
2012	doc 202209200099010100101.exe
2012	doc 202209200099010100101.exe
2012	doc 202209200099010100101.exe
2012	doc 202209200099010100101.exe
2012	doc 202209200099010100101.exe
2012	doc 202209200099010100101.exe
2012	doc 202209200099010100101.exe
1512	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2012	doc 202209200099010100101.exe
Token: SeDebugPrivilege	1512	powershell.exe
Token: SeDebugPrivilege	316	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1608	doc 202209200099010100101.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 1512	2012	doc 202209200099010100101.exe	29
PID 2012 wrote to memory of 1512	2012	doc 202209200099010100101.exe	29
PID 2012 wrote to memory of 1512	2012	doc 202209200099010100101.exe	29
PID 2012 wrote to memory of 1512	2012	doc 202209200099010100101.exe	29
PID 2012 wrote to memory of 1292	2012	doc 202209200099010100101.exe	30
PID 2012 wrote to memory of 1292	2012	doc 202209200099010100101.exe	30
PID 2012 wrote to memory of 1292	2012	doc 202209200099010100101.exe	30
PID 2012 wrote to memory of 1292	2012	doc 202209200099010100101.exe	30
PID 2012 wrote to memory of 1608	2012	doc 202209200099010100101.exe	32
PID 2012 wrote to memory of 1608	2012	doc 202209200099010100101.exe	32
PID 2012 wrote to memory of 1608	2012	doc 202209200099010100101.exe	32
PID 2012 wrote to memory of 1608	2012	doc 202209200099010100101.exe	32
PID 2012 wrote to memory of 1608	2012	doc 202209200099010100101.exe	32
PID 2012 wrote to memory of 1608	2012	doc 202209200099010100101.exe	32
PID 2012 wrote to memory of 1608	2012	doc 202209200099010100101.exe	32
PID 2012 wrote to memory of 1608	2012	doc 202209200099010100101.exe	32
PID 2012 wrote to memory of 1608	2012	doc 202209200099010100101.exe	32
PID 1608 wrote to memory of 316	1608	doc 202209200099010100101.exe	33
PID 1608 wrote to memory of 316	1608	doc 202209200099010100101.exe	33
PID 1608 wrote to memory of 316	1608	doc 202209200099010100101.exe	33
PID 1608 wrote to memory of 316	1608	doc 202209200099010100101.exe	33
PID 1608 wrote to memory of 316	1608	doc 202209200099010100101.exe	33
PID 1608 wrote to memory of 316	1608	doc 202209200099010100101.exe	33
PID 1608 wrote to memory of 316	1608	doc 202209200099010100101.exe	33
PID 1608 wrote to memory of 316	1608	doc 202209200099010100101.exe	33
PID 1608 wrote to memory of 316	1608	doc 202209200099010100101.exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\doc 202209200099010100101.exe
"C:\Users\Admin\AppData\Local\Temp\doc 202209200099010100101.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZKauJhJCKAhpgs.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1512
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZKauJhJCKAhpgs" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCADE.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1292
- C:\Users\Admin\AppData\Local\Temp\doc 202209200099010100101.exe
  "C:\Users\Admin\AppData\Local\Temp\doc 202209200099010100101.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1608
- - 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:316

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

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpCADE.tmp

Filesize
1KB

MD5
4b0679e96165b995ba54518f9d112193

SHA1
38c215a829c6c050b84d65a800cb9d0509f5aada

SHA256
1b7aa6e7c056c3e58b52086b54bb5441aa1a211272e2eb2d142c2dfe7e51c1b4

SHA512
b5b796707d5f711a1814bc5350dc29d483337f454162182d692a082ed98a24dd48da5746bed49ad954d61ad332ecdf7bc5434e92296f53cd93b40512c3de24d5

Download Submit
memory/316-84-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/316-82-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/316-79-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/316-77-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1512-75-0x000000006EB40000-0x000000006F0EB000-memory.dmp

Filesize
5.7MB

Download
memory/1512-87-0x000000006EB40000-0x000000006F0EB000-memory.dmp

Filesize
5.7MB

Download
memory/1608-67-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1608-86-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1608-69-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1608-72-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1608-65-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1608-64-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1608-88-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/2012-58-0x0000000005E90000-0x0000000005F10000-memory.dmp

Filesize
512KB

Download
memory/2012-56-0x00000000002F0000-0x0000000000306000-memory.dmp

Filesize
88KB

Download
memory/2012-55-0x0000000075BA1000-0x0000000075BA3000-memory.dmp

Filesize
8KB

Download
memory/2012-57-0x0000000000300000-0x000000000030C000-memory.dmp

Filesize
48KB

Download
memory/2012-63-0x0000000005200000-0x000000000522C000-memory.dmp

Filesize
176KB

Download
memory/2012-54-0x0000000001010000-0x00000000010D8000-memory.dmp

Filesize
800KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads