blustealer | 5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f

Analysis

max time kernel
143s
max time network
108s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
27-03-2023 15:20

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General

Target

PAYMENT SWIFT COPY.exe
Size

1.1MB
MD5

ec7c37ae9c0377f3240a274290c9c214
SHA1

432915cb9e9e860a84e142719bf0e82392c69a6a
SHA256

5c11c170ecb5809594f68e860f910f6d004e356d067be232c3c856c9ed78459f
SHA512

326f282eb2a8c6f79de6f7019fc7d16be88345467301bc1d28c36f5c7094ac38ec206dc068d24c8bcecd0cb02e39af1d5070f839f9518f0e8e149ac5c5c0c576
SSDEEP

24576:KZUu39V1vMSb4gz1o5Ti81zSdyrjLDjFPR6KrXmTDa:yltsSkW1o5Tiouy/z6KrXmX

Score

10^/10

blustealer collection stealer

Malware Config

Extracted

Family

blustealer

https://api.telegram.org/bot5916787654:AAEJEadEk6VSBHL82vTGRS9aaNuh-zG53Rg/sendMessage?chat_id=5483672364

Signatures

BluStealer
A Modular information stealer written in Visual Basic.
stealer blustealer

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-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	PAYMENT SWIFT COPY.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3684 set thread context of 2104	3684	PAYMENT SWIFT COPY.exe	100
PID 2104 set thread context of 468	2104	PAYMENT SWIFT COPY.exe	101

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
4620	schtasks.exe

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	43	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4920	powershell.exe
4736	powershell.exe
3684	PAYMENT SWIFT COPY.exe
3684	PAYMENT SWIFT COPY.exe
4920	powershell.exe
4736	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4920	powershell.exe
Token: SeDebugPrivilege	4736	powershell.exe
Token: SeDebugPrivilege	3684	PAYMENT SWIFT COPY.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2104	PAYMENT SWIFT COPY.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 3684 wrote to memory of 4736	3684	PAYMENT SWIFT COPY.exe	93
PID 3684 wrote to memory of 4736	3684	PAYMENT SWIFT COPY.exe	93
PID 3684 wrote to memory of 4736	3684	PAYMENT SWIFT COPY.exe	93
PID 3684 wrote to memory of 4920	3684	PAYMENT SWIFT COPY.exe	95
PID 3684 wrote to memory of 4920	3684	PAYMENT SWIFT COPY.exe	95
PID 3684 wrote to memory of 4920	3684	PAYMENT SWIFT COPY.exe	95
PID 3684 wrote to memory of 4620	3684	PAYMENT SWIFT COPY.exe	97
PID 3684 wrote to memory of 4620	3684	PAYMENT SWIFT COPY.exe	97
PID 3684 wrote to memory of 4620	3684	PAYMENT SWIFT COPY.exe	97
PID 3684 wrote to memory of 2604	3684	PAYMENT SWIFT COPY.exe	99
PID 3684 wrote to memory of 2604	3684	PAYMENT SWIFT COPY.exe	99
PID 3684 wrote to memory of 2604	3684	PAYMENT SWIFT COPY.exe	99
PID 3684 wrote to memory of 2104	3684	PAYMENT SWIFT COPY.exe	100
PID 3684 wrote to memory of 2104	3684	PAYMENT SWIFT COPY.exe	100
PID 3684 wrote to memory of 2104	3684	PAYMENT SWIFT COPY.exe	100
PID 3684 wrote to memory of 2104	3684	PAYMENT SWIFT COPY.exe	100
PID 3684 wrote to memory of 2104	3684	PAYMENT SWIFT COPY.exe	100
PID 3684 wrote to memory of 2104	3684	PAYMENT SWIFT COPY.exe	100
PID 3684 wrote to memory of 2104	3684	PAYMENT SWIFT COPY.exe	100
PID 3684 wrote to memory of 2104	3684	PAYMENT SWIFT COPY.exe	100
PID 2104 wrote to memory of 468	2104	PAYMENT SWIFT COPY.exe	101
PID 2104 wrote to memory of 468	2104	PAYMENT SWIFT COPY.exe	101
PID 2104 wrote to memory of 468	2104	PAYMENT SWIFT COPY.exe	101
PID 2104 wrote to memory of 468	2104	PAYMENT SWIFT COPY.exe	101
PID 2104 wrote to memory of 468	2104	PAYMENT SWIFT COPY.exe	101

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\PAYMENT SWIFT COPY.exe
"C:\Users\Admin\AppData\Local\Temp\PAYMENT SWIFT COPY.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3684
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\PAYMENT SWIFT COPY.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4736
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QrErGuxRXcieO.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4920
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QrErGuxRXcieO" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE9D3.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4620
- C:\Users\Admin\AppData\Local\Temp\PAYMENT SWIFT COPY.exe
  "C:\Users\Admin\AppData\Local\Temp\PAYMENT SWIFT COPY.exe"
  2⤵
  PID:2604
- C:\Users\Admin\AppData\Local\Temp\PAYMENT SWIFT COPY.exe
  "C:\Users\Admin\AppData\Local\Temp\PAYMENT SWIFT COPY.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2104
- - 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
    - outlook_office_path
    - outlook_win_path
    PID:468

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
64908fabd5de591d4e8b3e428ad43ebc

SHA1
e4d60cbe03715ea32510e12c5e4d2b2b6288b4d4

SHA256
e9c160619c3e43d534506f4b3a9c61645c3e4fbe7e3d07a320955f2c4674b9a6

SHA512
90a46950b4937b298b18eec3fea64b408f7477e20a2e69305879116574e6feb209700e8558c31babe20f866f50ccf799020497d94887ce5ff87ae61d7e1711eb

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vlpbjr5i.eez.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE9D3.tmp

Filesize
1KB

MD5
eb886a86e40ae3dbab1094e2b73a529c

SHA1
c7aab5691dced2512033addb9ac63665911dcc35

SHA256
933efd074c91eaa92ddc30e9207ef8fb9e66c266270d501500a465e59eabd85e

SHA512
4faf42739626d01d37b90d21e1a53aa2bf6fc9313e7043ad7b6e5d40698ac4376477d5506489b77923bd9f0171a335b506f4f519e265e5c89f52799f6404e219

Download Submit
memory/468-219-0x0000000000F10000-0x0000000000F76000-memory.dmp

Filesize
408KB

Download
memory/468-220-0x0000000005500000-0x0000000005510000-memory.dmp

Filesize
64KB

Download
memory/2104-218-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2104-179-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2104-172-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/2104-175-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/3684-139-0x0000000008A90000-0x0000000008B2C000-memory.dmp

Filesize
624KB

Download
memory/3684-138-0x0000000005870000-0x0000000005880000-memory.dmp

Filesize
64KB

Download
memory/3684-133-0x0000000000BC0000-0x0000000000CD4000-memory.dmp

Filesize
1.1MB

Download
memory/3684-137-0x0000000005870000-0x0000000005880000-memory.dmp

Filesize
64KB

Download
memory/3684-136-0x0000000005690000-0x000000000569A000-memory.dmp

Filesize
40KB

Download
memory/3684-135-0x00000000056A0000-0x0000000005732000-memory.dmp

Filesize
584KB

Download
memory/3684-134-0x0000000005BB0000-0x0000000006154000-memory.dmp

Filesize
5.6MB

Download
memory/4736-144-0x00000000028E0000-0x0000000002916000-memory.dmp

Filesize
216KB

Download
memory/4736-162-0x0000000005B50000-0x0000000005BB6000-memory.dmp

Filesize
408KB

Download
memory/4736-151-0x0000000005A40000-0x0000000005A62000-memory.dmp

Filesize
136KB

Download
memory/4736-147-0x0000000002A10000-0x0000000002A20000-memory.dmp

Filesize
64KB

Download
memory/4736-146-0x0000000002A10000-0x0000000002A20000-memory.dmp

Filesize
64KB

Download
memory/4736-207-0x000000007FA10000-0x000000007FA20000-memory.dmp

Filesize
64KB

Download
memory/4736-180-0x0000000002A10000-0x0000000002A20000-memory.dmp

Filesize
64KB

Download
memory/4736-183-0x0000000071090000-0x00000000710DC000-memory.dmp

Filesize
304KB

Download
memory/4736-212-0x00000000077F0000-0x00000000077F8000-memory.dmp

Filesize
32KB

Download
memory/4736-209-0x0000000007750000-0x00000000077E6000-memory.dmp

Filesize
600KB

Download
memory/4736-194-0x0000000007330000-0x000000000734E000-memory.dmp

Filesize
120KB

Download
memory/4736-208-0x0000000007540000-0x000000000754A000-memory.dmp

Filesize
40KB

Download
memory/4736-205-0x00000000074D0000-0x00000000074EA000-memory.dmp

Filesize
104KB

Download
memory/4920-178-0x0000000005C30000-0x0000000005C4E000-memory.dmp

Filesize
120KB

Download
memory/4920-206-0x000000007F000000-0x000000007F010000-memory.dmp

Filesize
64KB

Download
memory/4920-204-0x0000000007580000-0x0000000007BFA000-memory.dmp

Filesize
6.5MB

Download
memory/4920-182-0x0000000006200000-0x0000000006232000-memory.dmp

Filesize
200KB

Download
memory/4920-210-0x0000000007170000-0x000000000717E000-memory.dmp

Filesize
56KB

Download
memory/4920-211-0x0000000007280000-0x000000000729A000-memory.dmp

Filesize
104KB

Download
memory/4920-184-0x0000000071090000-0x00000000710DC000-memory.dmp

Filesize
304KB

Download
memory/4920-181-0x00000000023A0000-0x00000000023B0000-memory.dmp

Filesize
64KB

Download
memory/4920-161-0x0000000005650000-0x00000000056B6000-memory.dmp

Filesize
408KB

Download
memory/4920-149-0x00000000023A0000-0x00000000023B0000-memory.dmp

Filesize
64KB

Download
memory/4920-148-0x00000000023A0000-0x00000000023B0000-memory.dmp

Filesize
64KB

Download
memory/4920-145-0x0000000004DB0000-0x00000000053D8000-memory.dmp

Filesize
6.2MB

Download