blustealer | 635462342c88f30c79a7bbc5a8e594a3c72a9bdcd33fef4a64228ead8de93399

General

Target

22-2147 ET ALIMI,pdf.exe
Size

960KB
MD5

6732d27706bd0aa2fcdba4ec8abdbda7
SHA1

a6abd8fdfaaf1c7722d6b8ca39161624aa7c2c98
SHA256

635462342c88f30c79a7bbc5a8e594a3c72a9bdcd33fef4a64228ead8de93399
SHA512

da852f2696c2050e4a79ed7280a61825e7ddc40498bb751d5d4c35e16635642a108e2bbf83b40270709faa61655c76c7f961c32c1105ea57565a4130f3a2e38f
SSDEEP

12288:2Ye7VY2iNUsZ1DX/VDJiOEbVKRNS8/O4Jc3EEaFt6JAZrWmIvVFVuk1s3Wl3FkZy:v1uPQRN1hKuQAZrWmItF8lQFg2qdO

Score

10^/10

blustealer stormkitty collection stealer

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5583812995:AAFKzjSLC2-pDvMQ8X47-80XjrRiWrDtxA/sendMessage?chat_id=5434600361

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/1080-78-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/1080-79-0x00000000000A4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/1080-81-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty
behavioral1/memory/1080-83-0x0000000000090000-0x00000000000AA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\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 1744 set thread context of 1508	1744	22-2147 ET ALIMI,pdf.exe	32
PID 1508 set thread context of 1080	1508	22-2147 ET ALIMI,pdf.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
268	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1188	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1188	powershell.exe
Token: SeDebugPrivilege	1080	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1508	22-2147 ET ALIMI,pdf.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1744 wrote to memory of 1188	1744	22-2147 ET ALIMI,pdf.exe	28
PID 1744 wrote to memory of 1188	1744	22-2147 ET ALIMI,pdf.exe	28
PID 1744 wrote to memory of 1188	1744	22-2147 ET ALIMI,pdf.exe	28
PID 1744 wrote to memory of 1188	1744	22-2147 ET ALIMI,pdf.exe	28
PID 1744 wrote to memory of 268	1744	22-2147 ET ALIMI,pdf.exe	30
PID 1744 wrote to memory of 268	1744	22-2147 ET ALIMI,pdf.exe	30
PID 1744 wrote to memory of 268	1744	22-2147 ET ALIMI,pdf.exe	30
PID 1744 wrote to memory of 268	1744	22-2147 ET ALIMI,pdf.exe	30
PID 1744 wrote to memory of 1508	1744	22-2147 ET ALIMI,pdf.exe	32
PID 1744 wrote to memory of 1508	1744	22-2147 ET ALIMI,pdf.exe	32
PID 1744 wrote to memory of 1508	1744	22-2147 ET ALIMI,pdf.exe	32
PID 1744 wrote to memory of 1508	1744	22-2147 ET ALIMI,pdf.exe	32
PID 1744 wrote to memory of 1508	1744	22-2147 ET ALIMI,pdf.exe	32
PID 1744 wrote to memory of 1508	1744	22-2147 ET ALIMI,pdf.exe	32
PID 1744 wrote to memory of 1508	1744	22-2147 ET ALIMI,pdf.exe	32
PID 1744 wrote to memory of 1508	1744	22-2147 ET ALIMI,pdf.exe	32
PID 1744 wrote to memory of 1508	1744	22-2147 ET ALIMI,pdf.exe	32
PID 1508 wrote to memory of 1080	1508	22-2147 ET ALIMI,pdf.exe	33
PID 1508 wrote to memory of 1080	1508	22-2147 ET ALIMI,pdf.exe	33
PID 1508 wrote to memory of 1080	1508	22-2147 ET ALIMI,pdf.exe	33
PID 1508 wrote to memory of 1080	1508	22-2147 ET ALIMI,pdf.exe	33
PID 1508 wrote to memory of 1080	1508	22-2147 ET ALIMI,pdf.exe	33
PID 1508 wrote to memory of 1080	1508	22-2147 ET ALIMI,pdf.exe	33
PID 1508 wrote to memory of 1080	1508	22-2147 ET ALIMI,pdf.exe	33
PID 1508 wrote to memory of 1080	1508	22-2147 ET ALIMI,pdf.exe	33
PID 1508 wrote to memory of 1080	1508	22-2147 ET ALIMI,pdf.exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\22-2147 ET ALIMI,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\22-2147 ET ALIMI,pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1744
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\JutYvdZEVhdC.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1188
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JutYvdZEVhdC" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDE01.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:268
- C:\Users\Admin\AppData\Local\Temp\22-2147 ET ALIMI,pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\22-2147 ET ALIMI,pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1508
- - 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:1080

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\tmpDE01.tmp

Filesize
1KB

MD5
d0d724a8d388791fc3e133163e58a8e1

SHA1
3f508dcd01a05e03a860d21a35f09f830dac33a9

SHA256
a84cd91fbb5cf9530264104f885f4ea7b9c42166353d34f1ebd9805fba11fc3e

SHA512
a7c9c8f0aac1b7de0170af2869975ef3d9aabb7f1c412ddf0c1b230493dc11e6e4e5481dc4f8f63a0726f444c9046f76b5c127c98940622e8d8f0f4293ac4be8

Download Submit
memory/1080-81-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1080-78-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1080-76-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1080-83-0x0000000000090000-0x00000000000AA000-memory.dmp

Filesize
104KB

Download
memory/1188-85-0x000000006F050000-0x000000006F5FB000-memory.dmp

Filesize
5.7MB

Download
memory/1188-87-0x000000006F050000-0x000000006F5FB000-memory.dmp

Filesize
5.7MB

Download
memory/1508-64-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1508-67-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1508-88-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1508-72-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1508-65-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1508-86-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1508-69-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1744-58-0x0000000007EE0000-0x0000000007F7C000-memory.dmp

Filesize
624KB

Download
memory/1744-54-0x00000000008E0000-0x00000000009D6000-memory.dmp

Filesize
984KB

Download
memory/1744-57-0x0000000000310000-0x000000000031C000-memory.dmp

Filesize
48KB

Download
memory/1744-63-0x0000000005000000-0x0000000005066000-memory.dmp

Filesize
408KB

Download
memory/1744-55-0x0000000076941000-0x0000000076943000-memory.dmp

Filesize
8KB

Download
memory/1744-56-0x00000000004E0000-0x00000000004F8000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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