blackguard | 755cf8ab4b9d456e9a75fe22b5b54da8de5d8c125e288d96d913cacb9402fafa

General

Target

Fluxus.exe
Size

7.7MB
MD5

b467c46d660686e75e40341c0c7ff3b2
SHA1

109d3de55143ca891844ea9450c0f724a3f0a6c9
SHA256

755cf8ab4b9d456e9a75fe22b5b54da8de5d8c125e288d96d913cacb9402fafa
SHA512

1d427f295722ae3194b328e3f2ba5abba7f0ef0f30d49a9662360fb4eaaed0cdf70d841eea84b09bae99fd5d1de5de91656a238f7c03985c24b41a8e36f210b1
SSDEEP

196608:nHWp1r9qaKBgngb8KiqYy2+yrTleWDdC7P6hZ0Rxd3:nHWp1r2aq9yPlN0zmYX

Score

10^/10

blackguard spyware stealer

Malware Config

Extracted

Family

blackguard

C2

https://api.telegram.org/bot6483219642:AAFWWWbNgdseifC8eEZUAO7r5AzREdOAdQg/sendMessage?chat_id=6282952772

Signatures

BlackGuard
Infostealer first seen in Late 2021.
stealer blackguard

Executes dropped EXE 1 IoCs

pid	Process
2644	v2.exe

Loads dropped DLL 8 IoCs

pid	Process
2952	Fluxus.exe
2644	v2.exe
2644	v2.exe
2644	v2.exe
2644	v2.exe
2644	v2.exe
2644	v2.exe
2644	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
6	ip-api.com
2	freegeoip.app
3	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	v2.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	v2.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2644	v2.exe
2644	v2.exe
2644	v2.exe
2644	v2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2644	v2.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2952 wrote to memory of 2644	2952	Fluxus.exe	28
PID 2952 wrote to memory of 2644	2952	Fluxus.exe	28
PID 2952 wrote to memory of 2644	2952	Fluxus.exe	28
PID 2952 wrote to memory of 2644	2952	Fluxus.exe	28

C:\Users\Admin\AppData\Local\Temp\Fluxus.exe
"C:\Users\Admin\AppData\Local\Temp\Fluxus.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2952
- 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:2644

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\DuFTLVuXFLIZKCKOTP.Admin\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

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

Filesize
382B

MD5
fe8548fa3de361cc1dce95d04b82bac0

SHA1
6707dc7fcd1fee0d9621eb473c1282d4e1b62d54

SHA256
44d3ba9a93fcea86b62efc34b7e0fdb4953a18f9c3b80f26b126b0df7c9a30a6

SHA512
e92124c68a31a87f0ab760dff721519788b806d8ea827edbfa6d19a357c1730274f2e633d1d7a0ec6d1abb9374f44dcb32948eae7ba231ec105476681e56d41d

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

Filesize
241B

MD5
4f98c22cb7a65e548329f6dfe6e99ef6

SHA1
5375fbe7d3413018b64d97b3b2c0017fd2e6bed6

SHA256
6b275dc1a9048b5684da76a892fc443c4f5d8edff53aa06bb39f98cb220847f3

SHA512
066eb617a6cdea8a493d80806491f4c812d9b6a0e1c4e422b7b84b41650624c161848378f96d77dc10214086cc5793a4e8a172397b8c00ba0c818fdf5e4f60c4

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

Filesize
271KB

MD5
48659a7389db03a5b15080464cf2e746

SHA1
854df29ea26c0610aba91834999a3929616f2a7b

SHA256
8e1d929d82cc5bb3d4f959eabddf69e43eeac17a90986c87a1b2bf1626c62dc9

SHA512
c3759af061ed7382f16a0769e77197441a441e0b69dd3647413243cfa6f349246a3a8cea34909d6f549be78881dd4c9a91a06a01d839a68343f1859f0bb6e3c9

Download Submit
memory/2644-28-0x0000000005000000-0x0000000005040000-memory.dmp

Filesize
256KB

Download
memory/2644-41-0x0000000005200000-0x0000000005292000-memory.dmp

Filesize
584KB

Download
memory/2644-68-0x0000000005190000-0x00000000051F8000-memory.dmp

Filesize
416KB

Download
memory/2644-27-0x00000000747E0000-0x0000000074ECE000-memory.dmp

Filesize
6.9MB

Download
memory/2644-26-0x0000000000E10000-0x0000000000E5A000-memory.dmp

Filesize
296KB

Download
memory/2644-73-0x0000000000A40000-0x0000000000A60000-memory.dmp

Filesize
128KB

Download
memory/2644-110-0x00000000747E0000-0x0000000074ECE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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