blustealer | 7130b704fe2c8bf91508ad0dfa4869780e5afc92918f0f92e25c4e9523d1ab56

General

Target

Ziraat Bankasi Swift Mesaji.pdf.exe
Size

896KB
MD5

44be4836f3228810bdb241f11a393952
SHA1

6ad820d986a29601c52346323cdeff859deba0b6
SHA256

7130b704fe2c8bf91508ad0dfa4869780e5afc92918f0f92e25c4e9523d1ab56
SHA512

a17b9c1e08bb8bed6bc338e4ce9ccef5639fd4e9259d4401a18942c33370abce56aad6643f57be550c4066eb276ab1286647f7c326a3db9a4ef62b257416d165
SSDEEP

12288:FHa2PRb2y2aWXAwWVTqiG78nvYpYWJrj+vSjURiijEZs1s4A54ve:UY2zXKV28nv8xj3jUR/E624ve

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 1 IoCs

resource	yara_rule
behavioral2/memory/2976-156-0x0000000001320000-0x000000000133A000-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	Ziraat Bankasi Swift Mesaji.pdf.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\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
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

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
38	icanhazip.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4508 set thread context of 3752	4508	Ziraat Bankasi Swift Mesaji.pdf.exe	97
PID 3752 set thread context of 2976	3752	Ziraat Bankasi Swift Mesaji.pdf.exe	98

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
3684	schtasks.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
4508	Ziraat Bankasi Swift Mesaji.pdf.exe
4508	Ziraat Bankasi Swift Mesaji.pdf.exe
4508	Ziraat Bankasi Swift Mesaji.pdf.exe
4508	Ziraat Bankasi Swift Mesaji.pdf.exe
4508	Ziraat Bankasi Swift Mesaji.pdf.exe
4508	Ziraat Bankasi Swift Mesaji.pdf.exe
4508	Ziraat Bankasi Swift Mesaji.pdf.exe
4508	Ziraat Bankasi Swift Mesaji.pdf.exe
4508	Ziraat Bankasi Swift Mesaji.pdf.exe
4508	Ziraat Bankasi Swift Mesaji.pdf.exe
4508	Ziraat Bankasi Swift Mesaji.pdf.exe
3692	powershell.exe
3692	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3752	Ziraat Bankasi Swift Mesaji.pdf.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4508	Ziraat Bankasi Swift Mesaji.pdf.exe
Token: SeDebugPrivilege	3692	powershell.exe
Token: SeDebugPrivilege	2976	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3752	Ziraat Bankasi Swift Mesaji.pdf.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 4508 wrote to memory of 3692	4508	Ziraat Bankasi Swift Mesaji.pdf.exe	91
PID 4508 wrote to memory of 3692	4508	Ziraat Bankasi Swift Mesaji.pdf.exe	91
PID 4508 wrote to memory of 3692	4508	Ziraat Bankasi Swift Mesaji.pdf.exe	91
PID 4508 wrote to memory of 3684	4508	Ziraat Bankasi Swift Mesaji.pdf.exe	93
PID 4508 wrote to memory of 3684	4508	Ziraat Bankasi Swift Mesaji.pdf.exe	93
PID 4508 wrote to memory of 3684	4508	Ziraat Bankasi Swift Mesaji.pdf.exe	93
PID 4508 wrote to memory of 4100	4508	Ziraat Bankasi Swift Mesaji.pdf.exe	95
PID 4508 wrote to memory of 4100	4508	Ziraat Bankasi Swift Mesaji.pdf.exe	95
PID 4508 wrote to memory of 4100	4508	Ziraat Bankasi Swift Mesaji.pdf.exe	95
PID 4508 wrote to memory of 2040	4508	Ziraat Bankasi Swift Mesaji.pdf.exe	96
PID 4508 wrote to memory of 2040	4508	Ziraat Bankasi Swift Mesaji.pdf.exe	96
PID 4508 wrote to memory of 2040	4508	Ziraat Bankasi Swift Mesaji.pdf.exe	96
PID 4508 wrote to memory of 3752	4508	Ziraat Bankasi Swift Mesaji.pdf.exe	97
PID 4508 wrote to memory of 3752	4508	Ziraat Bankasi Swift Mesaji.pdf.exe	97
PID 4508 wrote to memory of 3752	4508	Ziraat Bankasi Swift Mesaji.pdf.exe	97
PID 4508 wrote to memory of 3752	4508	Ziraat Bankasi Swift Mesaji.pdf.exe	97
PID 4508 wrote to memory of 3752	4508	Ziraat Bankasi Swift Mesaji.pdf.exe	97
PID 4508 wrote to memory of 3752	4508	Ziraat Bankasi Swift Mesaji.pdf.exe	97
PID 4508 wrote to memory of 3752	4508	Ziraat Bankasi Swift Mesaji.pdf.exe	97
PID 4508 wrote to memory of 3752	4508	Ziraat Bankasi Swift Mesaji.pdf.exe	97
PID 3752 wrote to memory of 2976	3752	Ziraat Bankasi Swift Mesaji.pdf.exe	98
PID 3752 wrote to memory of 2976	3752	Ziraat Bankasi Swift Mesaji.pdf.exe	98
PID 3752 wrote to memory of 2976	3752	Ziraat Bankasi Swift Mesaji.pdf.exe	98
PID 3752 wrote to memory of 2976	3752	Ziraat Bankasi Swift Mesaji.pdf.exe	98
PID 3752 wrote to memory of 2976	3752	Ziraat Bankasi Swift Mesaji.pdf.exe	98

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\Ziraat Bankasi Swift Mesaji.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Ziraat Bankasi Swift Mesaji.pdf.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4508
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hxHmXpuPT.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3692
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hxHmXpuPT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3A1B.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3684
- C:\Users\Admin\AppData\Local\Temp\Ziraat Bankasi Swift Mesaji.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Ziraat Bankasi Swift Mesaji.pdf.exe"
  2⤵
  PID:4100
- C:\Users\Admin\AppData\Local\Temp\Ziraat Bankasi Swift Mesaji.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Ziraat Bankasi Swift Mesaji.pdf.exe"
  2⤵
  PID:2040
- C:\Users\Admin\AppData\Local\Temp\Ziraat Bankasi Swift Mesaji.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Ziraat Bankasi Swift Mesaji.pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3752
- - 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:2976

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\tmp3A1B.tmp

Filesize
1KB

MD5
6225bb36f83a5bea6fcef587de0ea7b0

SHA1
6f44f3ff718ca50b656e4d7c65b80d35b42f9e43

SHA256
c5604481af188e47476c2d2245d8ca5cdceb8fb48c2af8e4c88cc4d351f5aed4

SHA512
9886431e14d5bf83f1d95db2b73269ebfa84668fcabe17367086b576cd7b0d6f923611d9392aedfba844356eb119c70b0ac2eed64b6dd2cf9725a0417132a2fd

Download Submit
memory/2976-156-0x0000000001320000-0x000000000133A000-memory.dmp

Filesize
104KB

Download
memory/3692-150-0x0000000005510000-0x0000000005532000-memory.dmp

Filesize
136KB

Download
memory/3692-159-0x0000000006B60000-0x0000000006B7E000-memory.dmp

Filesize
120KB

Download
memory/3692-166-0x0000000007BF0000-0x0000000007BF8000-memory.dmp

Filesize
32KB

Download
memory/3692-165-0x0000000007C10000-0x0000000007C2A000-memory.dmp

Filesize
104KB

Download
memory/3692-141-0x0000000005010000-0x0000000005046000-memory.dmp

Filesize
216KB

Download
memory/3692-164-0x0000000007B00000-0x0000000007B0E000-memory.dmp

Filesize
56KB

Download
memory/3692-163-0x0000000007B50000-0x0000000007BE6000-memory.dmp

Filesize
600KB

Download
memory/3692-144-0x00000000056A0000-0x0000000005CC8000-memory.dmp

Filesize
6.2MB

Download
memory/3692-162-0x0000000007940000-0x000000000794A000-memory.dmp

Filesize
40KB

Download
memory/3692-161-0x00000000078D0000-0x00000000078EA000-memory.dmp

Filesize
104KB

Download
memory/3692-160-0x0000000007F10000-0x000000000858A000-memory.dmp

Filesize
6.5MB

Download
memory/3692-151-0x00000000055B0000-0x0000000005616000-memory.dmp

Filesize
408KB

Download
memory/3692-158-0x00000000705D0000-0x000000007061C000-memory.dmp

Filesize
304KB

Download
memory/3692-157-0x0000000006BD0000-0x0000000006C02000-memory.dmp

Filesize
200KB

Download
memory/3692-154-0x00000000064D0000-0x00000000064EE000-memory.dmp

Filesize
120KB

Download
memory/3752-153-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/3752-148-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/3752-146-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/3752-167-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/4508-133-0x00000000050C0000-0x0000000005664000-memory.dmp

Filesize
5.6MB

Download
memory/4508-134-0x0000000004BB0000-0x0000000004C42000-memory.dmp

Filesize
584KB

Download
memory/4508-132-0x0000000000240000-0x0000000000320000-memory.dmp

Filesize
896KB

Download
memory/4508-135-0x0000000004B90000-0x0000000004B9A000-memory.dmp

Filesize
40KB

Download
memory/4508-136-0x0000000008500000-0x000000000859C000-memory.dmp

Filesize
624KB

Download
memory/4508-137-0x0000000008950000-0x00000000089B6000-memory.dmp

Filesize
408KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads