metasploit | 15ab521e069455d069f96c79434d746dd110fa76b9b8367c9118ec6e23432dea

General

Target

y4KuA3gUoq.exe
Size

9.3MB
MD5

f00cc3acb0edc971bfd70ccb98fc3701
SHA1

17f2a141768b85952140c4a2141cd18b8845844b
SHA256

15ab521e069455d069f96c79434d746dd110fa76b9b8367c9118ec6e23432dea
SHA512

03d95b2a0c75b826c77dddc3679929b422f505d53399f1a32f8016f1ff0a908a57dac492a7ee204045411523245cee0aa14f98f38f2aba56e01ffc054d691ab9
SSDEEP

98304:QOzH+XBts1rX50JU8qB+TciBavxGYfVtYzGbAnMklK/5Xo+IFoNngx1FRh4EO9lN:QOr+XwBqcgUt+MpmQNshJOsK7

Score

10^/10

metasploit backdoor trojan

Malware Config

Extracted

Family

metasploit

Version

metasploit_stager

C2

0.0.0.0:0

Signatures

MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
trojan backdoor metasploit
Metasploit family
metasploit

Checks BIOS information in registry 2 TTPs 22 IoCs

BIOS 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\VideoBiosVersion	y4KuA3gUoq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	y4KuA3gUoq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	y4KuA3gUoq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	y4KuA3gUoq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	y4KuA3gUoq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	y4KuA3gUoq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	y4KuA3gUoq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	y4KuA3gUoq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	y4KuA3gUoq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	y4KuA3gUoq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	y4KuA3gUoq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	y4KuA3gUoq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	y4KuA3gUoq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	y4KuA3gUoq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	y4KuA3gUoq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	y4KuA3gUoq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	y4KuA3gUoq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	y4KuA3gUoq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	y4KuA3gUoq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	y4KuA3gUoq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	y4KuA3gUoq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	y4KuA3gUoq.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-556537508-2730415644-482548075-1000_Classes\Local Settings\MuiCache	BackgroundTransferHost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-556537508-2730415644-482548075-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Content\CachePrefix	BackgroundTransferHost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-556537508-2730415644-482548075-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:"	BackgroundTransferHost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-556537508-2730415644-482548075-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\History\CachePrefix = "Visited:"	BackgroundTransferHost.exe

Suspicious behavior: EnumeratesProcesses 44 IoCs

pid	Process
2644	y4KuA3gUoq.exe
2644	y4KuA3gUoq.exe
2644	y4KuA3gUoq.exe
2644	y4KuA3gUoq.exe
1068	y4KuA3gUoq.exe
1068	y4KuA3gUoq.exe
1068	y4KuA3gUoq.exe
1068	y4KuA3gUoq.exe
3436	y4KuA3gUoq.exe
3436	y4KuA3gUoq.exe
3436	y4KuA3gUoq.exe
3436	y4KuA3gUoq.exe
2688	y4KuA3gUoq.exe
2688	y4KuA3gUoq.exe
2688	y4KuA3gUoq.exe
2688	y4KuA3gUoq.exe
4708	y4KuA3gUoq.exe
4708	y4KuA3gUoq.exe
4708	y4KuA3gUoq.exe
4708	y4KuA3gUoq.exe
4500	y4KuA3gUoq.exe
4500	y4KuA3gUoq.exe
4500	y4KuA3gUoq.exe
4500	y4KuA3gUoq.exe
3160	y4KuA3gUoq.exe
3160	y4KuA3gUoq.exe
3160	y4KuA3gUoq.exe
3160	y4KuA3gUoq.exe
224	y4KuA3gUoq.exe
224	y4KuA3gUoq.exe
224	y4KuA3gUoq.exe
224	y4KuA3gUoq.exe
3248	y4KuA3gUoq.exe
3248	y4KuA3gUoq.exe
3248	y4KuA3gUoq.exe
3248	y4KuA3gUoq.exe
4744	y4KuA3gUoq.exe
4744	y4KuA3gUoq.exe
4744	y4KuA3gUoq.exe
4744	y4KuA3gUoq.exe
1120	y4KuA3gUoq.exe
1120	y4KuA3gUoq.exe
1120	y4KuA3gUoq.exe
1120	y4KuA3gUoq.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeDebugPrivilege	2644	y4KuA3gUoq.exe
Token: SeDebugPrivilege	1068	y4KuA3gUoq.exe
Token: SeDebugPrivilege	3436	y4KuA3gUoq.exe
Token: SeDebugPrivilege	2688	y4KuA3gUoq.exe
Token: SeDebugPrivilege	4708	y4KuA3gUoq.exe
Token: SeDebugPrivilege	4500	y4KuA3gUoq.exe
Token: SeDebugPrivilege	3160	y4KuA3gUoq.exe
Token: SeDebugPrivilege	224	y4KuA3gUoq.exe
Token: SeDebugPrivilege	3248	y4KuA3gUoq.exe
Token: SeDebugPrivilege	4744	y4KuA3gUoq.exe
Token: SeDebugPrivilege	1120	y4KuA3gUoq.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4352 wrote to memory of 2688	4352	cmd.exe	100
PID 4352 wrote to memory of 2688	4352	cmd.exe	100
PID 4352 wrote to memory of 4708	4352	cmd.exe	104
PID 4352 wrote to memory of 4708	4352	cmd.exe	104
PID 4352 wrote to memory of 4500	4352	cmd.exe	108
PID 4352 wrote to memory of 4500	4352	cmd.exe	108

C:\Users\Admin\AppData\Local\Temp\y4KuA3gUoq.exe
"C:\Users\Admin\AppData\Local\Temp\y4KuA3gUoq.exe"
1⤵
- Checks BIOS information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2644

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:2804

C:\Users\Admin\Desktop\y4KuA3gUoq.exe
"C:\Users\Admin\Desktop\y4KuA3gUoq.exe"
1⤵
- Checks BIOS information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1068

C:\Users\Admin\Desktop\y4KuA3gUoq.exe
"C:\Users\Admin\Desktop\y4KuA3gUoq.exe"
1⤵
- Checks BIOS information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3436

C:\Windows\system32\BackgroundTransferHost.exe
"BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.13
1⤵
- Modifies registry class
PID:3312

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4352
- C:\Users\Admin\Desktop\y4KuA3gUoq.exe
  C:\Users\Admin\Desktop\y4KuA3gUoq.exe
  2⤵
  - Checks BIOS information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2688
- C:\Users\Admin\Desktop\y4KuA3gUoq.exe
  C:\Users\Admin\Desktop\y4KuA3gUoq.exe
  2⤵
  - Checks BIOS information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4708
- C:\Users\Admin\Desktop\y4KuA3gUoq.exe
  C:\Users\Admin\Desktop\y4KuA3gUoq.exe
  2⤵
  - Checks BIOS information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4500

C:\Users\Admin\Desktop\y4KuA3gUoq.exe
"C:\Users\Admin\Desktop\y4KuA3gUoq.exe"
1⤵
- Checks BIOS information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3160

C:\Users\Admin\Desktop\y4KuA3gUoq.exe
"C:\Users\Admin\Desktop\y4KuA3gUoq.exe"
1⤵
- Checks BIOS information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:224

C:\Users\Admin\Desktop\y4KuA3gUoq.exe
"C:\Users\Admin\Desktop\y4KuA3gUoq.exe"
1⤵
- Checks BIOS information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3248

C:\Users\Admin\Desktop\y4KuA3gUoq.exe
"C:\Users\Admin\Desktop\y4KuA3gUoq.exe"
1⤵
- Checks BIOS information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4744

C:\Users\Admin\Desktop\y4KuA3gUoq.exe
"C:\Users\Admin\Desktop\y4KuA3gUoq.exe"
1⤵
- Checks BIOS information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1120

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\AC\BackgroundTransferApi\667f1e43-fade-437a-b9a4-d29b9712b908.down_data

Filesize
555KB

MD5
5683c0028832cae4ef93ca39c8ac5029

SHA1
248755e4e1db552e0b6f8651b04ca6d1b31a86fb

SHA256
855abd360d8a8d6974eba92b70cbd09ce519bc8773439993f9ab37cb6847309e

SHA512
aba434bd29be191c823b02ea9b639beb10647bbe7759bbffdaa790dfb1ec2c58d74c525ef11aacda209e4effe322d1d3a07b115446c8914b07a3bce4d8a0e2c3

Download Submit
memory/224-24-0x00007FF729730000-0x00007FF72AA43000-memory.dmp

Filesize
19.1MB

Download
memory/1068-3-0x00007FF729730000-0x00007FF72AA43000-memory.dmp

Filesize
19.1MB

Download
memory/1068-4-0x00007FF9F79C0000-0x00007FF9F7BC9000-memory.dmp

Filesize
2.0MB

Download
memory/1068-6-0x00007FF9F79C0000-0x00007FF9F7BC9000-memory.dmp

Filesize
2.0MB

Download
memory/1068-7-0x00007FF729730000-0x00007FF72AA43000-memory.dmp

Filesize
19.1MB

Download
memory/1120-27-0x00007FF729730000-0x00007FF72AA43000-memory.dmp

Filesize
19.1MB

Download
memory/2644-0-0x00007FF729730000-0x00007FF72AA43000-memory.dmp

Filesize
19.1MB

Download
memory/2644-1-0x00007FF9F7A67000-0x00007FF9F7A69000-memory.dmp

Filesize
8KB

Download
memory/2644-2-0x00007FF729730000-0x00007FF72AA43000-memory.dmp

Filesize
19.1MB

Download
memory/2688-17-0x00007FF729730000-0x00007FF72AA43000-memory.dmp

Filesize
19.1MB

Download
memory/2688-18-0x00007FF729730000-0x00007FF72AA43000-memory.dmp

Filesize
19.1MB

Download
memory/3160-23-0x00007FF729730000-0x00007FF72AA43000-memory.dmp

Filesize
19.1MB

Download
memory/3248-25-0x00007FF729730000-0x00007FF72AA43000-memory.dmp

Filesize
19.1MB

Download
memory/3436-10-0x00007FF729730000-0x00007FF72AA43000-memory.dmp

Filesize
19.1MB

Download
memory/3436-8-0x00007FF729730000-0x00007FF72AA43000-memory.dmp

Filesize
19.1MB

Download
memory/4500-22-0x00007FF729730000-0x00007FF72AA43000-memory.dmp

Filesize
19.1MB

Download
memory/4708-19-0x00007FF729730000-0x00007FF72AA43000-memory.dmp

Filesize
19.1MB

Download
memory/4708-21-0x00007FF729730000-0x00007FF72AA43000-memory.dmp

Filesize
19.1MB

Download
memory/4744-26-0x00007FF729730000-0x00007FF72AA43000-memory.dmp

Filesize
19.1MB

Download

Analysis

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