blacknet | 6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9

General

Target

6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
Size

185KB
MD5

ce9fbdc93576a35bc2d232a48ed54366
SHA1

9fc9f4c0125b50572e631a8a1d51ebfd594d3335
SHA256

6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9
SHA512

d501cde2cfcb04ae851aaa0ae7934b13a6ab64f6866cc0bfb1f9ee3c65f3fe9e48948a40c1494cfdcc00cce75398c1240dec4be7dde31cb961a4250bd8635543
SSDEEP

3072:y/0i3U/mrQ0cY+CwkntxUMbsYxq7qZKh6p:y/D3U+rQ0cY+t8txTs2q7q

Score

10^/10

blacknet persistence trojan

Malware Config

Extracted

Family

blacknet

Attributes

antivm
false
elevate_uac
false
install_name
splitter
start_name
startup
false
usb_spread
false

Signatures

BlackNET
BlackNET is an open source remote access tool written in VB.NET.
trojan blacknet

BlackNET payload 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2168-136-0x0000000000400000-0x0000000000426000-memory.dmp	family_blacknet
behavioral1/memory/4836-138-0x0000000004A00000-0x0000000004A22000-memory.dmp	family_blacknet

Contains code to disable Windows Defender 2 IoCs

A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

Processes:

resource	yara_rule
behavioral1/memory/2168-136-0x0000000000400000-0x0000000000426000-memory.dmp	disable_win_def
behavioral1/memory/4836-138-0x0000000004A00000-0x0000000004A22000-memory.dmp	disable_win_def

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\d3f5d9b2bed7d09a6a916e85527c9d53 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe"	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\d3f5d9b2bed7d09a6a916e85527c9d53 = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\MyClient\\WindowsRework.exe"	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe

description	pid	process	target process
PID 4836 set thread context of 2168	4836	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 30 IoCs

Processes:

6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe

pid	process
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe

description pid process

Token: SeDebugPrivilege 2168 6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe

description	pid	process
Token: SeDebugPrivilege	2168	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe

description	pid	process	target process
PID 4836 wrote to memory of 2168	4836	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
PID 4836 wrote to memory of 2168	4836	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
PID 4836 wrote to memory of 2168	4836	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
PID 4836 wrote to memory of 2168	4836	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
PID 4836 wrote to memory of 2168	4836	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
PID 4836 wrote to memory of 2168	4836	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
PID 4836 wrote to memory of 2168	4836	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
PID 4836 wrote to memory of 2168	4836	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe	6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe

C:\Users\Admin\AppData\Local\Temp\6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
"C:\Users\Admin\AppData\Local\Temp\6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4836

C:\Users\Admin\AppData\Local\Temp\6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe
"C:\Users\Admin\AppData\Local\Temp\6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2168

C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\WindowsRework.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\WindowsRework.exe"
3⤵
PID:2952

C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\WindowsRework.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\WindowsRework.exe"
4⤵
PID:4128

C:\Users\Admin\AppData\Local\Temp\svchosts.exe
"C:\Users\Admin\AppData\Local\Temp\svchosts.exe"
3⤵
PID:3920

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9.exe.log
Filesize
20B

MD5
b3ac9d09e3a47d5fd00c37e075a70ecb

SHA1
ad14e6d0e07b00bd10d77a06d68841b20675680b

SHA256
7a23c6e7ccd8811ecdf038d3a89d5c7d68ed37324bae2d4954125d9128fa9432

SHA512
09b609ee1061205aa45b3c954efc6c1a03c8fd6b3011ff88cf2c060e19b1d7fd51ee0cb9d02a39310125f3a66aa0146261bdee3d804f472034df711bc942e316

Download Submit
C:\Users\Admin\AppData\Local\Temp\svchosts.exe
Filesize
18KB

MD5
d133d370c3858c9811e70f95d554d2c6

SHA1
bb09b1253ce571a49b76951283883a3499588295

SHA256
87a1711030512dd414bcbab0659a2b51c0c16505bd8a068a282a1cc2c9fdf93b

SHA512
db4d41fca43e496b2b0d8d47d936a9ce204e3b6c4c669a8a9810362776a977b5337359b843fcd1d20004455d2c91f9790b3accb5352f4e55ec53c7e5d359d778

Download Submit
C:\Users\Admin\AppData\Local\Temp\svchosts.exe
Filesize
18KB

MD5
d133d370c3858c9811e70f95d554d2c6

SHA1
bb09b1253ce571a49b76951283883a3499588295

SHA256
87a1711030512dd414bcbab0659a2b51c0c16505bd8a068a282a1cc2c9fdf93b

SHA512
db4d41fca43e496b2b0d8d47d936a9ce204e3b6c4c669a8a9810362776a977b5337359b843fcd1d20004455d2c91f9790b3accb5352f4e55ec53c7e5d359d778

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\WindowsRework.exe
Filesize
185KB

MD5
ce9fbdc93576a35bc2d232a48ed54366

SHA1
9fc9f4c0125b50572e631a8a1d51ebfd594d3335

SHA256
6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9

SHA512
d501cde2cfcb04ae851aaa0ae7934b13a6ab64f6866cc0bfb1f9ee3c65f3fe9e48948a40c1494cfdcc00cce75398c1240dec4be7dde31cb961a4250bd8635543

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\WindowsRework.exe
Filesize
185KB

MD5
ce9fbdc93576a35bc2d232a48ed54366

SHA1
9fc9f4c0125b50572e631a8a1d51ebfd594d3335

SHA256
6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9

SHA512
d501cde2cfcb04ae851aaa0ae7934b13a6ab64f6866cc0bfb1f9ee3c65f3fe9e48948a40c1494cfdcc00cce75398c1240dec4be7dde31cb961a4250bd8635543

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\MyClient\WindowsRework.exe
Filesize
185KB

MD5
ce9fbdc93576a35bc2d232a48ed54366

SHA1
9fc9f4c0125b50572e631a8a1d51ebfd594d3335

SHA256
6dd503b0dcfb6aceafee5e02e3df1882d33a6abce7a0127c615354f2e0b788d9

SHA512
d501cde2cfcb04ae851aaa0ae7934b13a6ab64f6866cc0bfb1f9ee3c65f3fe9e48948a40c1494cfdcc00cce75398c1240dec4be7dde31cb961a4250bd8635543

Download Submit
memory/2168-160-0x0000000000829000-0x000000000082F000-memory.dmp

Filesize
24KB

Download
memory/2168-159-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/2168-141-0x0000000000829000-0x000000000082F000-memory.dmp

Filesize
24KB

Download
memory/2168-168-0x000000000AAF4000-0x000000000AAF7000-memory.dmp

Filesize
12KB

Download
memory/2168-167-0x000000000AAF0000-0x000000000AAF4000-memory.dmp

Filesize
16KB

Download
memory/2168-140-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/2168-166-0x0000000000829000-0x000000000082F000-memory.dmp

Filesize
24KB

Download
memory/2168-165-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/2168-136-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2168-163-0x000000000AAF4000-0x000000000AAF7000-memory.dmp

Filesize
12KB

Download
memory/2168-161-0x000000000AAF0000-0x000000000AAF4000-memory.dmp

Filesize
16KB

Download
memory/2168-152-0x000000000AAF0000-0x000000000AAF4000-memory.dmp

Filesize
16KB

Download
memory/2168-135-0x0000000000000000-mapping.dmp

Download
memory/2952-156-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/2952-150-0x0000000000762000-0x0000000000773000-memory.dmp

Filesize
68KB

Download
memory/2952-157-0x0000000000762000-0x0000000000770000-memory.dmp

Filesize
56KB

Download
memory/2952-142-0x0000000000000000-mapping.dmp

Download
memory/2952-154-0x0000000000762000-0x0000000000770000-memory.dmp

Filesize
56KB

Download
memory/2952-148-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/3920-145-0x0000000000000000-mapping.dmp

Download
memory/3920-149-0x00007FFCED0D0000-0x00007FFCEDB06000-memory.dmp

Filesize
10.2MB

Download
memory/4128-162-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/4128-151-0x0000000000000000-mapping.dmp

Download
memory/4128-158-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/4836-137-0x0000000000573000-0x0000000000582000-memory.dmp

Filesize
60KB

Download
memory/4836-138-0x0000000004A00000-0x0000000004A22000-memory.dmp

Filesize
136KB

Download
memory/4836-139-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads