blackguard | 636e70909dfc21703747ce167243327f31be31210107bfd865ad37a7b90e4720

General

Target

aimstar.exe
Size

7.7MB
MD5

d7ec7f52738bcacf33d89fb8f1b84e19
SHA1

ffed31ec21b973ce896ff03020c972d1fdb18982
SHA256

636e70909dfc21703747ce167243327f31be31210107bfd865ad37a7b90e4720
SHA512

1128f33463d97e0218fb61c77891d07597d49df28cd322dcf5ac0e4af1be4e40d9e469ac02a98a1790eda433a6d250875e471d63c1040f8bc7cd021f4a4db370
SSDEEP

196608:Hi2odc8ACwKlRZFm2avkB0+lsFKKm5Ui+Luw/forAD:HBodbhjbaPcsFZNwAD

Score

10^/10

blackguard spyware stealer

Malware Config

Extracted

Family

blackguard

C2

https://api.telegram.org/bot6983151793:AAHNg6Weep9RXr0xtID5GbMp4oUCYfsclrY/sendMessage?chat_id=6591851501

Signatures

BlackGuard
Infostealer first seen in Late 2021.
stealer blackguard

Executes dropped EXE 1 IoCs

pid	Process
2420	v2.exe

Loads dropped DLL 8 IoCs

pid	Process
2036	aimstar.exe
2420	v2.exe
2420	v2.exe
2420	v2.exe
2420	v2.exe
2420	v2.exe
2420	v2.exe
2420	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
3	freegeoip.app
6	ip-api.com
2	freegeoip.app

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
2420	v2.exe
2420	v2.exe
2420	v2.exe
2420	v2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2420	v2.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 2420	2036	aimstar.exe	28
PID 2036 wrote to memory of 2420	2036	aimstar.exe	28
PID 2036 wrote to memory of 2420	2036	aimstar.exe	28
PID 2036 wrote to memory of 2420	2036	aimstar.exe	28

C:\Users\Admin\AppData\Local\Temp\aimstar.exe
"C:\Users\Admin\AppData\Local\Temp\aimstar.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2036
- 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:2420

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
571KB

MD5
169b6d383b7c650ab3ae2129397a6cf3

SHA1
fcaef7defb04301fd55fb1421bb15ef96d7040d6

SHA256
b896083feb2bdedc1568b62805dbd354c55e57f2d2469a52aec6c98f4ec2dedf

SHA512
7a7a7bdb508b8bf177249251c83b65a2ef4a5d8b29397cab130cb8444b23888678673a9a2e4b1c74cc095b358f923b9e7e5a91bfa8c240412d95765851f1dd87

Download Submit
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\TwZHKULBIBU.Admin\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

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

Filesize
370B

MD5
0b204ffe41b5f18d3f8f7f6b09fa70d8

SHA1
6bce33ef492e518892eec5d9a11bbe5d72574024

SHA256
bdd24228e1a44a62f9faeb50edc381150385991fa2b71078c1e09cc35f03d813

SHA512
565442a53e6f15dbfacb6079b0c5589f791b372c7692f8f2d887407b88e9a2787b71ebe918fd8cffbfd6af3fc09e1d19cd7003d03abdfb9bae0852482d9b49a7

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

Filesize
271KB

MD5
ed4ac9e57a79cf611f6a916110f6ddf9

SHA1
5da7167c7c613bf02cf1aed853a17809a2bd5291

SHA256
b7d895134dd03c93c5cc942e702d3a8bfdb4c9c394b8053a9b4968650d249a02

SHA512
dff977b0e021a2dfb322f099f6323305270ec1f628763d0b84d0f7dc7ffe75e783eeeacb8c087bbc4325a9a0954c966aa546bf024b66248df66e6fc9622df606

Download Submit
memory/2420-28-0x0000000005150000-0x0000000005190000-memory.dmp

Filesize
256KB

Download
memory/2420-36-0x0000000005410000-0x00000000054A2000-memory.dmp

Filesize
584KB

Download
memory/2420-27-0x0000000074620000-0x0000000074D0E000-memory.dmp

Filesize
6.9MB

Download
memory/2420-68-0x0000000005190000-0x00000000051F8000-memory.dmp

Filesize
416KB

Download
memory/2420-26-0x0000000000010000-0x000000000005A000-memory.dmp

Filesize
296KB

Download
memory/2420-73-0x0000000000560000-0x0000000000580000-memory.dmp

Filesize
128KB

Download
memory/2420-110-0x0000000074620000-0x0000000074D0E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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