blackguard | 9ded158155f6ea7b0546f7b9f4232c6ab8a83dfa4a4a4541ad568c40701ccf63

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29-02-2024 06:55

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General

Target

Backdoor.Win32.Poison.exe
Size

7.7MB
MD5

6584904d4b82003ab55cc4e409e3c3d1
SHA1

00c2fdbad40ef28ee824930d6f951d8cc4cdbd22
SHA256

9ded158155f6ea7b0546f7b9f4232c6ab8a83dfa4a4a4541ad568c40701ccf63
SHA512

a4a0cdeb31b23f2abf4524354f9b1ab83c348ceb5f6c200db72cd0768dfe50f2ae4c6562ee9f6b1fe5e342ba1d61654bbf92d853aebda1d8c24d29da5184b41e
SSDEEP

196608:7SsB3UHB58UTesBenxj2xwMz8Yi9pZpVU/E/YJsaMf:7SKkftTesBUWbotpKJsaS

Score

10^/10

blackguard spyware stealer

Malware Config

Extracted

Family

blackguard

https://api.telegram.org/bot6998282917:AAFTftoiI1iDK69cdnpTF9-X_NW2zLUTJMQ/sendMessage?chat_id=6569859833

Signatures

BlackGuard
Infostealer first seen in Late 2021.
stealer blackguard

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 2 IoCs

resource	yara_rule
behavioral1/files/0x0006000000017219-21.dat	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2572-26-0x0000000000B20000-0x0000000000B6A000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables containing SQL queries to confidential data stores. Observed in infostealers 2 IoCs

resource	yara_rule
behavioral1/files/0x0006000000017219-21.dat	INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
behavioral1/memory/2572-26-0x0000000000B20000-0x0000000000B6A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore

Detects executables containing common artifacts observed in infostealers 2 IoCs

resource	yara_rule
behavioral1/files/0x0006000000017219-21.dat	INDICATOR_SUSPICIOUS_GENInfoStealer
behavioral1/memory/2572-26-0x0000000000B20000-0x0000000000B6A000-memory.dmp	INDICATOR_SUSPICIOUS_GENInfoStealer

Detects executables referencing Discord tokens regular expressions 2 IoCs

resource	yara_rule
behavioral1/files/0x0006000000017219-21.dat	INDICATOR_SUSPICIOUS_EXE_Discord_Regex
behavioral1/memory/2572-26-0x0000000000B20000-0x0000000000B6A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Discord_Regex

Detects executables referencing credit card regular expressions 2 IoCs

resource	yara_rule
behavioral1/files/0x0006000000017219-21.dat	INDICATOR_SUSPICIOUS_EXE_CC_Regex
behavioral1/memory/2572-26-0x0000000000B20000-0x0000000000B6A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_CC_Regex

Detects executables referencing many VPN software clients. Observed in infosteslers 2 IoCs

resource	yara_rule
behavioral1/files/0x0006000000017219-21.dat	INDICATOR_SUSPICIOUS_EXE_References_VPN
behavioral1/memory/2572-26-0x0000000000B20000-0x0000000000B6A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_VPN

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 2 IoCs

resource	yara_rule
behavioral1/files/0x0006000000017219-21.dat	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2572-26-0x0000000000B20000-0x0000000000B6A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Detects executables using Telegram Chat Bot 2 IoCs

resource	yara_rule
behavioral1/files/0x0006000000017219-21.dat	INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
behavioral1/memory/2572-26-0x0000000000B20000-0x0000000000B6A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_TelegramChatBot

Executes dropped EXE 1 IoCs

pid	Process
2572	v2.exe

Loads dropped DLL 8 IoCs

pid	Process
2972	Backdoor.Win32.Poison.exe
2572	v2.exe
2572	v2.exe
2572	v2.exe
2572	v2.exe
2572	v2.exe
2572	v2.exe
2572	v2.exe

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
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
2	freegeoip.app
3	freegeoip.app
6	ip-api.com

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

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	v2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	v2.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2572	v2.exe
2572	v2.exe
2572	v2.exe
2572	v2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2572	v2.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 2572	2972	Backdoor.Win32.Poison.exe	28
PID 2972 wrote to memory of 2572	2972	Backdoor.Win32.Poison.exe	28
PID 2972 wrote to memory of 2572	2972	Backdoor.Win32.Poison.exe	28
PID 2972 wrote to memory of 2572	2972	Backdoor.Win32.Poison.exe	28

C:\Users\Admin\AppData\Local\Temp\Backdoor.Win32.Poison.exe
"C:\Users\Admin\AppData\Local\Temp\Backdoor.Win32.Poison.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2972
- C:\Users\Admin\AppData\Local\Temp\v2.exe
  "C:\Users\Admin\AppData\Local\Temp\v2.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\SQLite.Interop.dll

Filesize
1.3MB

MD5
0a1e95b0b1535203a1b8479dff2c03ff

SHA1
20c4b4406e8a3b1b35ca739ed59aa07ba867043d

SHA256
788d748b4d35dfd091626529457d91e9ebc8225746211086b14fb4a25785a51e

SHA512
854abcca8d807a98a9ad0ca5d2e55716c3ce26fae7ee4642796baf415c3cfad522b658963eafe504ecaed6c2ecdcdf332c9b01e43dfa342fcc5ca0fbedfe600e

Download Submit
C:\Users\Admin\AppData\Local\Temp\System.Data.SQLite.dll

Filesize
410KB

MD5
056d3fcaf3b1d32ff25f513621e2a372

SHA1
851740bca46bab71d0b1d47e47f3eb8358cbee03

SHA256
66b64362664030bff1596cda2ec5bd5df48cc7c8313c32f771db4aa30a3f86f9

SHA512
ce47c581538f48a46d70279a62c702195beacbfafb48a5a862b3922625fe56f6887d1679c6d9366f946d3d2124cb31c2a3eacbbd14d601ea56e66575cdf46180

Download Submit
C:\Users\Admin\AppData\Roaming\XZNJLPIRBKNPS.Admin\Process.txt

Filesize
105B

MD5
5fa00bb46233d53c9714bba3674b9c30

SHA1
ed80dc612632bee5792ee6f69189b0e925d8cc09

SHA256
73bd7d35e3800c0b1bf1948cbcd7b7ff9d102da225ed25e0935757c290c70a89

SHA512
ef4c6fff6239fc7ea9c79f23ee6de6b1c9109f506c2948923a1b62664190413f22f91324fa23752dde0404dc02a1c0c9ce13dc75e7d08598f230153b79b6d27d

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\Users\Admin\AppData\Local\Temp\Newtonsoft.Json.dll

Filesize
571KB

MD5
169b6d383b7c650ab3ae2129397a6cf3

SHA1
fcaef7defb04301fd55fb1421bb15ef96d7040d6

SHA256
b896083feb2bdedc1568b62805dbd354c55e57f2d2469a52aec6c98f4ec2dedf

SHA512
7a7a7bdb508b8bf177249251c83b65a2ef4a5d8b29397cab130cb8444b23888678673a9a2e4b1c74cc095b358f923b9e7e5a91bfa8c240412d95765851f1dd87

Download Submit
\Users\Admin\AppData\Local\Temp\v2.exe

Filesize
271KB

MD5
1b306d023f27875521a7e0fea2314286

SHA1
97c508b280e15903121b6042c6133351a53e68b1

SHA256
e9117cc30d4ee4727d5b7f77b2fab14ff86a8aa829e4d639929d755445da4fbf

SHA512
e83d78249645dac79d1a2b829fe468d7ec62166d40792b1601e9fac51b5cc57117152cf5dad8410a72dc1ce062f7e6fa368bb71720a04267e69c3fb376d8993e

Download Submit
memory/2572-26-0x0000000000B20000-0x0000000000B6A000-memory.dmp

Filesize
296KB

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memory/2572-27-0x0000000074310000-0x00000000749FE000-memory.dmp

Filesize
6.9MB

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memory/2572-28-0x0000000004E30000-0x0000000004E70000-memory.dmp

Filesize
256KB

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memory/2572-39-0x0000000004EB0000-0x0000000004F42000-memory.dmp

Filesize
584KB

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memory/2572-70-0x0000000004C50000-0x0000000004CB8000-memory.dmp

Filesize
416KB

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memory/2572-75-0x00000000005D0000-0x00000000005F0000-memory.dmp

Filesize
128KB

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memory/2572-111-0x0000000074310000-0x00000000749FE000-memory.dmp

Filesize
6.9MB

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