blustealer | dda40af7e530bf5744b1ae2219bcf10b8457f18c6a8ef39e9423badaf30beec4

Analysis

max time kernel
141s
max time network
49s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
26-09-2022 08:28

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General

Target

hesaphareketi-01.exe
Size

1.2MB
MD5

d11c83b988df04a4c28f9d13f541e62a
SHA1

a078c177c1defb15aabd2a36b13b8894cda439f2
SHA256

dda40af7e530bf5744b1ae2219bcf10b8457f18c6a8ef39e9423badaf30beec4
SHA512

bb4d2f2cb99e5d9331b832c54c2a8b52edfd253fe78c481aa28539053db9965ebad3c1fbf9781c1779bed6a031e01d9b2142f199d364b134d583234c92dc4f40
SSDEEP

12288:mVqvrjjHby/Wuw2YJ5RH/KTuowkP4Ylib+vektHuxqilKlFL4JEgm3FyEgUiGa:1v7aYVCwkQd+xtOxxE6ENFy

Score

10^/10

blustealer stormkitty stealer

Malware Config

Extracted

Family

blustealer

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 3 IoCs

resource	yara_rule
behavioral1/memory/1568-80-0x00000000000D0000-0x00000000000EA000-memory.dmp	family_stormkitty
behavioral1/memory/1568-81-0x00000000000E4F6E-mapping.dmp	family_stormkitty
behavioral1/memory/1568-83-0x00000000000D0000-0x00000000000EA000-memory.dmp	family_stormkitty

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1368 set thread context of 1072	1368	hesaphareketi-01.exe	34
PID 1072 set thread context of 1568	1072	hesaphareketi-01.exe	35

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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
688	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1368	hesaphareketi-01.exe
1368	hesaphareketi-01.exe
1368	hesaphareketi-01.exe
528	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1072	hesaphareketi-01.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1368	hesaphareketi-01.exe
Token: SeDebugPrivilege	528	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1072	hesaphareketi-01.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 1368 wrote to memory of 528	1368	hesaphareketi-01.exe	27
PID 1368 wrote to memory of 528	1368	hesaphareketi-01.exe	27
PID 1368 wrote to memory of 528	1368	hesaphareketi-01.exe	27
PID 1368 wrote to memory of 528	1368	hesaphareketi-01.exe	27
PID 1368 wrote to memory of 688	1368	hesaphareketi-01.exe	29
PID 1368 wrote to memory of 688	1368	hesaphareketi-01.exe	29
PID 1368 wrote to memory of 688	1368	hesaphareketi-01.exe	29
PID 1368 wrote to memory of 688	1368	hesaphareketi-01.exe	29
PID 1368 wrote to memory of 1656	1368	hesaphareketi-01.exe	31
PID 1368 wrote to memory of 1656	1368	hesaphareketi-01.exe	31
PID 1368 wrote to memory of 1656	1368	hesaphareketi-01.exe	31
PID 1368 wrote to memory of 1656	1368	hesaphareketi-01.exe	31
PID 1368 wrote to memory of 1892	1368	hesaphareketi-01.exe	32
PID 1368 wrote to memory of 1892	1368	hesaphareketi-01.exe	32
PID 1368 wrote to memory of 1892	1368	hesaphareketi-01.exe	32
PID 1368 wrote to memory of 1892	1368	hesaphareketi-01.exe	32
PID 1368 wrote to memory of 676	1368	hesaphareketi-01.exe	33
PID 1368 wrote to memory of 676	1368	hesaphareketi-01.exe	33
PID 1368 wrote to memory of 676	1368	hesaphareketi-01.exe	33
PID 1368 wrote to memory of 676	1368	hesaphareketi-01.exe	33
PID 1368 wrote to memory of 1072	1368	hesaphareketi-01.exe	34
PID 1368 wrote to memory of 1072	1368	hesaphareketi-01.exe	34
PID 1368 wrote to memory of 1072	1368	hesaphareketi-01.exe	34
PID 1368 wrote to memory of 1072	1368	hesaphareketi-01.exe	34
PID 1368 wrote to memory of 1072	1368	hesaphareketi-01.exe	34
PID 1368 wrote to memory of 1072	1368	hesaphareketi-01.exe	34
PID 1368 wrote to memory of 1072	1368	hesaphareketi-01.exe	34
PID 1368 wrote to memory of 1072	1368	hesaphareketi-01.exe	34
PID 1368 wrote to memory of 1072	1368	hesaphareketi-01.exe	34
PID 1072 wrote to memory of 1568	1072	hesaphareketi-01.exe	35
PID 1072 wrote to memory of 1568	1072	hesaphareketi-01.exe	35
PID 1072 wrote to memory of 1568	1072	hesaphareketi-01.exe	35
PID 1072 wrote to memory of 1568	1072	hesaphareketi-01.exe	35
PID 1072 wrote to memory of 1568	1072	hesaphareketi-01.exe	35
PID 1072 wrote to memory of 1568	1072	hesaphareketi-01.exe	35
PID 1072 wrote to memory of 1568	1072	hesaphareketi-01.exe	35
PID 1072 wrote to memory of 1568	1072	hesaphareketi-01.exe	35
PID 1072 wrote to memory of 1568	1072	hesaphareketi-01.exe	35

C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe
"C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1368
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hWxKhpT.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:528
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hWxKhpT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2675.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:688
- C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe
  "C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe"
  2⤵
  PID:1656
- C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe
  "C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe"
  2⤵
  PID:1892
- C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe
  "C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe"
  2⤵
  PID:676
- C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe
  "C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1072
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
    3⤵
    PID:1568

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp2675.tmp

Filesize
1KB

MD5
7d56786522591fdb272d84d785f5c9a5

SHA1
c410c852515a9656b8979ac7bceca7e8d11b1fb5

SHA256
a67fde5e531dfd7e76cc02432ff44528dcd980f9759676614d5072279e5f1f90

SHA512
93c553bf9a4d38e365cbc8db2dfa7bd01ab970d8e71d3cfecda77f174dcdf5425aec6987acf402550795d282e9759c39b3870d66fc3f6087b61a279652d6d146

Download Submit
memory/528-77-0x000000006E3B0000-0x000000006E95B000-memory.dmp

Filesize
5.7MB

Download
memory/528-84-0x000000006E3B0000-0x000000006E95B000-memory.dmp

Filesize
5.7MB

Download
memory/1072-64-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1072-67-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1072-79-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1072-69-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1072-65-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1072-85-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1072-72-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1368-57-0x0000000000450000-0x000000000045C000-memory.dmp

Filesize
48KB

Download
memory/1368-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1368-54-0x0000000000850000-0x000000000097C000-memory.dmp

Filesize
1.2MB

Download
memory/1368-63-0x0000000006050000-0x00000000060BC000-memory.dmp

Filesize
432KB

Download
memory/1368-55-0x0000000074E41000-0x0000000074E43000-memory.dmp

Filesize
8KB

Download
memory/1368-58-0x0000000005F90000-0x0000000006050000-memory.dmp

Filesize
768KB

Download
memory/1568-76-0x00000000000D0000-0x00000000000EA000-memory.dmp

Filesize
104KB

Download
memory/1568-80-0x00000000000D0000-0x00000000000EA000-memory.dmp

Filesize
104KB

Download
memory/1568-83-0x00000000000D0000-0x00000000000EA000-memory.dmp

Filesize
104KB

Download