buer | 64115a195a5068a2ab1a3f872fe0a2aff606771e3a06f64e46d3c10f7566eedc

Analysis

max time kernel
141s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
30-08-2024 15:28

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

file.exe
Size

270KB
MD5

bde7cb83c1fa62b052a3b255a79dfc1e
SHA1

a8aa28248ba9153b6839b3f840499e133b9c9da7
SHA256

64115a195a5068a2ab1a3f872fe0a2aff606771e3a06f64e46d3c10f7566eedc
SHA512

b4e8059232d6fad153986110a977b28d9bd2d3883b6dba8d94ddfc69f22b5736e29936cf9c0e7e8c83a586ce8e3f0007dd1a0e5e61732368bf383287dae1cf29
SSDEEP

6144:GfIlaD5M11KvaIi5KAUUnk5BcVKnCpXuaSUqq8tCEO:G16YaePUnkf2KCpX+UqqBEO

Score

10^/10

buer lumma stealc vidar 1f3c236c672ff2ffe017b396f834c66e default credential_access discovery loader spyware stealer

Malware Config

Extracted

Family

stealc

Botnet

default

http://46.8.231.109

Attributes

url_path
/c4754d4f680ead72.php

Extracted

Family

vidar

Version

10.8

Botnet

1f3c236c672ff2ffe017b396f834c66e

http://147.45.68.138:80

https://steamcommunity.com/profiles/76561199761128941

https://t.me/iyigunl

Attributes

user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Extracted

Family

lumma

https://locatedblsoqp.shop/api

https://traineiwnqo.shop/api

Signatures

Buer
Buer is a new modular loader first seen in August 2019.
loader buer

Detect Vidar Stealer 7 IoCs

stealer

resource	yara_rule
behavioral2/memory/4252-91-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral2/memory/4252-94-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral2/memory/4252-99-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral2/memory/4252-113-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral2/memory/4252-114-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral2/memory/4252-130-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral2/memory/4252-131-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7

Lumma Stealer, LummaC
Lumma or LummaC is an infostealer written in C++ first seen in August 2022.
stealer lumma
Stealc
Stealc is an infostealer written in C++.
stealer stealc
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
Downloads MZ/PE file

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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	RegAsm.exe

Executes dropped EXE 2 IoCs

pid	Process
868	AdminBKKFCFBKFC.exe
4832	AdminJDHJKKFBAE.exe

Loads dropped DLL 2 IoCs

pid	Process
3488	RegAsm.exe
3488	RegAsm.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4204 set thread context of 3488	4204	file.exe	87
PID 868 set thread context of 4252	868	AdminBKKFCFBKFC.exe	102
PID 4832 set thread context of 756	4832	AdminJDHJKKFBAE.exe	107

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4740	756	WerFault.exe	107
1732	756	WerFault.exe	107

System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AdminBKKFCFBKFC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AdminJDHJKKFBAE.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Checks processor information in registry 2 TTPs 4 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	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	RegAsm.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3488	RegAsm.exe
3488	RegAsm.exe
3488	RegAsm.exe
3488	RegAsm.exe
4252	RegAsm.exe
4252	RegAsm.exe
4252	RegAsm.exe
4252	RegAsm.exe

Suspicious use of WriteProcessMemory 46 IoCs

description	pid	Process	procid_target
PID 4204 wrote to memory of 804	4204	file.exe	85
PID 4204 wrote to memory of 804	4204	file.exe	85
PID 4204 wrote to memory of 804	4204	file.exe	85
PID 4204 wrote to memory of 2624	4204	file.exe	86
PID 4204 wrote to memory of 2624	4204	file.exe	86
PID 4204 wrote to memory of 2624	4204	file.exe	86
PID 4204 wrote to memory of 3488	4204	file.exe	87
PID 4204 wrote to memory of 3488	4204	file.exe	87
PID 4204 wrote to memory of 3488	4204	file.exe	87
PID 4204 wrote to memory of 3488	4204	file.exe	87
PID 4204 wrote to memory of 3488	4204	file.exe	87
PID 4204 wrote to memory of 3488	4204	file.exe	87
PID 4204 wrote to memory of 3488	4204	file.exe	87
PID 4204 wrote to memory of 3488	4204	file.exe	87
PID 4204 wrote to memory of 3488	4204	file.exe	87
PID 3488 wrote to memory of 3584	3488	RegAsm.exe	98
PID 3488 wrote to memory of 3584	3488	RegAsm.exe	98
PID 3488 wrote to memory of 3584	3488	RegAsm.exe	98
PID 3584 wrote to memory of 868	3584	cmd.exe	100
PID 3584 wrote to memory of 868	3584	cmd.exe	100
PID 3584 wrote to memory of 868	3584	cmd.exe	100
PID 868 wrote to memory of 4252	868	AdminBKKFCFBKFC.exe	102
PID 868 wrote to memory of 4252	868	AdminBKKFCFBKFC.exe	102
PID 868 wrote to memory of 4252	868	AdminBKKFCFBKFC.exe	102
PID 868 wrote to memory of 4252	868	AdminBKKFCFBKFC.exe	102
PID 868 wrote to memory of 4252	868	AdminBKKFCFBKFC.exe	102
PID 868 wrote to memory of 4252	868	AdminBKKFCFBKFC.exe	102
PID 868 wrote to memory of 4252	868	AdminBKKFCFBKFC.exe	102
PID 868 wrote to memory of 4252	868	AdminBKKFCFBKFC.exe	102
PID 868 wrote to memory of 4252	868	AdminBKKFCFBKFC.exe	102
PID 868 wrote to memory of 4252	868	AdminBKKFCFBKFC.exe	102
PID 3488 wrote to memory of 2064	3488	RegAsm.exe	103
PID 3488 wrote to memory of 2064	3488	RegAsm.exe	103
PID 3488 wrote to memory of 2064	3488	RegAsm.exe	103
PID 2064 wrote to memory of 4832	2064	cmd.exe	105
PID 2064 wrote to memory of 4832	2064	cmd.exe	105
PID 2064 wrote to memory of 4832	2064	cmd.exe	105
PID 4832 wrote to memory of 756	4832	AdminJDHJKKFBAE.exe	107
PID 4832 wrote to memory of 756	4832	AdminJDHJKKFBAE.exe	107
PID 4832 wrote to memory of 756	4832	AdminJDHJKKFBAE.exe	107
PID 4832 wrote to memory of 756	4832	AdminJDHJKKFBAE.exe	107
PID 4832 wrote to memory of 756	4832	AdminJDHJKKFBAE.exe	107
PID 4832 wrote to memory of 756	4832	AdminJDHJKKFBAE.exe	107
PID 4832 wrote to memory of 756	4832	AdminJDHJKKFBAE.exe	107
PID 4832 wrote to memory of 756	4832	AdminJDHJKKFBAE.exe	107
PID 4832 wrote to memory of 756	4832	AdminJDHJKKFBAE.exe	107

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4204
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:804
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:2624
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Checks computer location settings
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3488
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminBKKFCFBKFC.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3584
  - - C:\Users\AdminBKKFCFBKFC.exe
      "C:\Users\AdminBKKFCFBKFC.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:868
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        5⤵
        System Location Discovery: System Language Discovery
        Checks processor information in registry
        Suspicious behavior: EnumeratesProcesses
        
        PID:4252
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminJDHJKKFBAE.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2064
  - - C:\Users\AdminJDHJKKFBAE.exe
      "C:\Users\AdminJDHJKKFBAE.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4832
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:756
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 756 -s 1368
        6⤵
        Program crash
        
        PID:4740
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 756 -s 1352
        6⤵
        Program crash
        
        PID:1732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 756 -ip 756
1⤵
PID:2492

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 756 -ip 756
1⤵
PID:3812

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
C:\Users\AdminBKKFCFBKFC.exe

Filesize
253KB

MD5
744dad327f45b0839b0150d45e6b1f9f

SHA1
0e56064bfe685e7a3e10f89c6aa9886cc1417e9d

SHA256
b83f5ea0d9fbc1418ecfbf9d0407cfddb3ca85ba99e967c5fe431fbb6b663bad

SHA512
5d66716bfa6e203f659c3dc18d081c70f60a5df7f8285bcf3b2a670481fdb0709b0b8bdeda7490e3570ac902f3cb74d18bb77956e4701ad6c515d7ceff3683e8

Download Submit
C:\Users\AdminJDHJKKFBAE.exe

Filesize
385KB

MD5
9d43cace837db35056d25064945455d6

SHA1
0ad36269e51dd146dea865c993a52e860682a5b2

SHA256
ac25764b77616481d80b9a17f14a0272acd5ba1fbbabfdd5bc2e9b59ae8bbfdd

SHA512
ca897e22d69de3a177bb4b25a80a8c1b1da385159ddb942f3385cf477a249b1960d0420febb4c9f791923f59fbb02a36b9b92f8e2289b63142a4378840040d75

Download Submit
memory/756-110-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/756-112-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/756-108-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/868-88-0x0000000072B1E000-0x0000000072B1F000-memory.dmp

Filesize
4KB

Download
memory/868-132-0x0000000072B10000-0x00000000732C0000-memory.dmp

Filesize
7.7MB

Download
memory/868-98-0x0000000072B10000-0x00000000732C0000-memory.dmp

Filesize
7.7MB

Download
memory/868-89-0x0000000000430000-0x0000000000474000-memory.dmp

Filesize
272KB

Download
memory/3488-54-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/3488-133-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/3488-10-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/3488-8-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/3488-3-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/3488-6-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/4204-7-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/4204-1-0x0000000000820000-0x0000000000868000-memory.dmp

Filesize
288KB

Download
memory/4204-0-0x0000000074F2E000-0x0000000074F2F000-memory.dmp

Filesize
4KB

Download
memory/4252-99-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/4252-113-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/4252-114-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/4252-116-0x000000001D630000-0x000000001D88F000-memory.dmp

Filesize
2.4MB

Download
memory/4252-130-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/4252-131-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/4252-94-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/4252-91-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/4832-106-0x0000000000260000-0x00000000002C4000-memory.dmp

Filesize
400KB

Download