Malware Analysis Report

2025-06-16 06:19

Sample ID 240106-me273sdggl
Target abb84f7bbcc5585765153cd445c8c07d.exe
SHA256 149e9d049c83abff4843e0fab7f6cde552aef61e32a53d61e76f6c5adc3db25f
Tags
nanocore evasion keylogger persistence spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

149e9d049c83abff4843e0fab7f6cde552aef61e32a53d61e76f6c5adc3db25f

Threat Level: Known bad

The file abb84f7bbcc5585765153cd445c8c07d.exe was found to be: Known bad.

Malicious Activity Summary

nanocore evasion keylogger persistence spyware stealer trojan

NanoCore

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

Checks whether UAC is enabled

Adds Run key to start application

Drops file in Program Files directory

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Creates scheduled task(s)

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-06 10:23

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-06 10:23

Reported

2024-01-06 10:26

Platform

win7-20231215-en

Max time kernel

119s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Tayz Woofer.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\LAN Monitor = "C:\\Program Files\\LAN Monitor\\lanmon.exe" C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\LAN Monitor\lanmon.exe C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe N/A
File opened for modification C:\Program Files\LAN Monitor\lanmon.exe C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe N/A

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\system32\schtasks.exe N/A
N/A N/A C:\Windows\system32\schtasks.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2100 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe C:\Users\Admin\AppData\Local\Temp\Tayz Woofer.exe
PID 2100 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe C:\Users\Admin\AppData\Local\Temp\Tayz Woofer.exe
PID 2100 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe C:\Users\Admin\AppData\Local\Temp\Tayz Woofer.exe
PID 2100 wrote to memory of 2452 N/A C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe C:\Users\Admin\AppData\Local\Temp\Tayz Woofer.exe
PID 2100 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe
PID 2100 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe
PID 2100 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe
PID 2100 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe
PID 2684 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe C:\Windows\system32\schtasks.exe
PID 2684 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe C:\Windows\system32\schtasks.exe
PID 2684 wrote to memory of 2584 N/A C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe C:\Windows\system32\schtasks.exe
PID 2684 wrote to memory of 2940 N/A C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe C:\Windows\system32\schtasks.exe
PID 2684 wrote to memory of 2940 N/A C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe C:\Windows\system32\schtasks.exe
PID 2684 wrote to memory of 2940 N/A C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe C:\Windows\system32\schtasks.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe

"C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe"

C:\Users\Admin\AppData\Local\Temp\Tayz Woofer.exe

"C:\Users\Admin\AppData\Local\Temp\Tayz Woofer.exe"

C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe

"C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe"

C:\Windows\system32\schtasks.exe

"schtasks.exe" /create /f /tn "LAN Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9425.tmp"

C:\Windows\system32\schtasks.exe

"schtasks.exe" /create /f /tn "LAN Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9628.tmp"

Network

Country Destination Domain Proto
US 8.8.8.8:53 yourself-catholic.gl.at.ply.gg udp
US 147.185.221.17:56274 yourself-catholic.gl.at.ply.gg tcp

Files

\Users\Admin\AppData\Local\Temp\Tayz Woofer.exe

MD5 8a172477569fd0f1b554ecaa42a59d9d
SHA1 58adf1c1f27215d13e280364c15008df293d90fb
SHA256 391915fb3b7aa3df83c7d95c0867e3d24ee8906e657344666bbd87ea4e61a82a
SHA512 8aae52a6af70795cc938a7ad107bfa2ab383ea2f8f86777ac2084eba0bbac6175bbe432569a8706541122b9dc417748f5fe54e829ddd77be0b7a6b5c26999a85

memory/2100-5-0x00000000027E0000-0x0000000002883000-memory.dmp

memory/2452-7-0x000000013F220000-0x000000013F2C3000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe

MD5 a632a39ffdce2f2de984c6992d188986
SHA1 7a1bb8fea06c819b7e575f9ef431af09151837eb
SHA256 6800905847788c228e211fd1086dad6a20aa745d1351c0bd43d5f89aa58b1c9e
SHA512 a7a6f0bc2448f3222652882893c9b14e21f073dce0dc0509c534bd0e1219a8860278be485a1b41333f7b9dc969431aacd54701f4ca7eb9d615ffdf192452244b

memory/2684-17-0x000007FEF5630000-0x000007FEF5FCD000-memory.dmp

memory/2684-18-0x00000000004C0000-0x0000000000540000-memory.dmp

memory/2684-19-0x000007FEF5630000-0x000007FEF5FCD000-memory.dmp

memory/2684-20-0x00000000004C0000-0x0000000000540000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp9425.tmp

MD5 03622b0c91662ec4ada74d25f655232f
SHA1 7272a7d3acd8726fa58987ad322fa06ce7a23208
SHA256 68a618959190a38c260d20dde35209ed7c8f8ef336c8f6af4abdf416ea2e8b67
SHA512 6d6ddb25cf1a0793bcea2ce25e866db318400eef864c1608441c529ab094be604c9e98264219c933a2187ec63abc77124edddeb324744999872d150ce7e73dd2

C:\Users\Admin\AppData\Local\Temp\tmp9628.tmp

MD5 5ed3301e36e3359905df2c1d8fee55f9
SHA1 87f3dd865a35a183a95b70670837aff59acab4c1
SHA256 b6b1ccf23addd989edab37c3c63997814126559be20653e5b219bfcb0afef0f8
SHA512 5b2eaa5ad2f0cedb509b459407e0260bee6760cca7ca04f62afad6d5b2ae7dbdd19a443012e7d71476f5f6433a72d6c4b111580b7b592010c1e966155cd828a4

memory/2684-29-0x00000000004C0000-0x0000000000540000-memory.dmp

memory/2684-28-0x00000000005A0000-0x00000000005AA000-memory.dmp

memory/2684-30-0x00000000004C0000-0x0000000000540000-memory.dmp

memory/2684-31-0x00000000003A0000-0x00000000003B2000-memory.dmp

memory/2684-32-0x0000000000790000-0x00000000007AA000-memory.dmp

memory/2684-33-0x0000000000490000-0x000000000049E000-memory.dmp

memory/2684-34-0x00000000007B0000-0x00000000007BE000-memory.dmp

memory/2684-35-0x00000000007C0000-0x00000000007CC000-memory.dmp

memory/2684-36-0x00000000007D0000-0x00000000007E4000-memory.dmp

memory/2684-37-0x0000000000CE0000-0x0000000000CF0000-memory.dmp

memory/2684-38-0x0000000002280000-0x0000000002294000-memory.dmp

memory/2684-39-0x0000000002290000-0x000000000229E000-memory.dmp

memory/2684-40-0x00000000022A0000-0x00000000022BE000-memory.dmp

memory/2684-41-0x00000000003B0000-0x00000000003BA000-memory.dmp

memory/2684-43-0x000000001C1A0000-0x000000001C2A0000-memory.dmp

memory/2684-42-0x00000000022C0000-0x00000000022EE000-memory.dmp

memory/2684-44-0x00000000022F0000-0x0000000002304000-memory.dmp

memory/2452-46-0x000000013F220000-0x000000013F2C3000-memory.dmp

memory/2684-48-0x000007FEF5630000-0x000007FEF5FCD000-memory.dmp

memory/2684-49-0x00000000004C0000-0x0000000000540000-memory.dmp

memory/2684-50-0x000007FEF5630000-0x000007FEF5FCD000-memory.dmp

memory/2684-51-0x000000001C1A0000-0x000000001C2A0000-memory.dmp

memory/2684-52-0x000000001C1A0000-0x000000001C2A0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-06 10:23

Reported

2024-01-06 10:26

Platform

win10v2004-20231215-en

Max time kernel

150s

Max time network

170s

Command Line

"C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Tayz Woofer.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DHCP Service = "C:\\Program Files\\DHCP Service\\dhcpsvc.exe" C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\DHCP Service\dhcpsvc.exe C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe N/A
File opened for modification C:\Program Files\DHCP Service\dhcpsvc.exe C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe N/A

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SYSTEM32\schtasks.exe N/A
N/A N/A C:\Windows\SYSTEM32\schtasks.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe

"C:\Users\Admin\AppData\Local\Temp\abb84f7bbcc5585765153cd445c8c07d.exe"

C:\Users\Admin\AppData\Local\Temp\Tayz Woofer.exe

"C:\Users\Admin\AppData\Local\Temp\Tayz Woofer.exe"

C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe

"C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe"

C:\Windows\SYSTEM32\schtasks.exe

"schtasks.exe" /create /f /tn "DHCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA464.tmp"

C:\Windows\SYSTEM32\schtasks.exe

"schtasks.exe" /create /f /tn "DHCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAD9C.tmp"

Network

Country Destination Domain Proto
US 8.8.8.8:53 81.171.91.138.in-addr.arpa udp
US 8.8.8.8:53 83.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 114.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 yourself-catholic.gl.at.ply.gg udp
US 147.185.221.17:56274 yourself-catholic.gl.at.ply.gg tcp
US 8.8.8.8:53 17.221.185.147.in-addr.arpa udp
US 8.8.8.8:53 4.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp

Files

C:\Users\Admin\AppData\Local\Temp\Tayz Woofer.exe

MD5 8a172477569fd0f1b554ecaa42a59d9d
SHA1 58adf1c1f27215d13e280364c15008df293d90fb
SHA256 391915fb3b7aa3df83c7d95c0867e3d24ee8906e657344666bbd87ea4e61a82a
SHA512 8aae52a6af70795cc938a7ad107bfa2ab383ea2f8f86777ac2084eba0bbac6175bbe432569a8706541122b9dc417748f5fe54e829ddd77be0b7a6b5c26999a85

memory/1788-12-0x00007FF6F8150000-0x00007FF6F81F3000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\SecurityHealthService.exe

MD5 a632a39ffdce2f2de984c6992d188986
SHA1 7a1bb8fea06c819b7e575f9ef431af09151837eb
SHA256 6800905847788c228e211fd1086dad6a20aa745d1351c0bd43d5f89aa58b1c9e
SHA512 a7a6f0bc2448f3222652882893c9b14e21f073dce0dc0509c534bd0e1219a8860278be485a1b41333f7b9dc969431aacd54701f4ca7eb9d615ffdf192452244b

memory/3304-17-0x00007FF955320000-0x00007FF955CC1000-memory.dmp

memory/3304-19-0x0000000001210000-0x0000000001220000-memory.dmp

memory/3304-18-0x00007FF955320000-0x00007FF955CC1000-memory.dmp

memory/3304-20-0x000000001BDA0000-0x000000001C26E000-memory.dmp

memory/3304-21-0x000000001C270000-0x000000001C30C000-memory.dmp

memory/3304-22-0x000000001C4C0000-0x000000001C566000-memory.dmp

memory/3304-23-0x00007FF955320000-0x00007FF955CC1000-memory.dmp

memory/3304-24-0x0000000001050000-0x0000000001058000-memory.dmp

memory/3304-25-0x00007FF955320000-0x00007FF955CC1000-memory.dmp

memory/3304-26-0x0000000001210000-0x0000000001220000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmpA464.tmp

MD5 03622b0c91662ec4ada74d25f655232f
SHA1 7272a7d3acd8726fa58987ad322fa06ce7a23208
SHA256 68a618959190a38c260d20dde35209ed7c8f8ef336c8f6af4abdf416ea2e8b67
SHA512 6d6ddb25cf1a0793bcea2ce25e866db318400eef864c1608441c529ab094be604c9e98264219c933a2187ec63abc77124edddeb324744999872d150ce7e73dd2

C:\Users\Admin\AppData\Local\Temp\tmpAD9C.tmp

MD5 a1e72d32044df2250a28d62375b19f15
SHA1 f82e0131f1a1fcbf825544cd2cc25e28174c47ee
SHA256 b3e2fff6289e337bc83c056904dad620e5edc7f28ac3690ab4900f3ec90df799
SHA512 df04c1f421c3d2ed3c928e388aa068be0c3b1bd16348f2692a63c641ec6cd3b103525a8e39298566a395f863fc23a3e29cf2ae50f3e68b5ffba981241587a88b

memory/3304-34-0x000000001C810000-0x000000001C910000-memory.dmp

memory/3304-35-0x000000001CDF0000-0x000000001CDFA000-memory.dmp

memory/3304-36-0x0000000001180000-0x0000000001192000-memory.dmp

memory/3304-37-0x000000001D120000-0x000000001D13A000-memory.dmp

memory/3304-38-0x000000001C800000-0x000000001C80E000-memory.dmp

memory/3304-39-0x000000001CD80000-0x000000001CD8E000-memory.dmp

memory/3304-40-0x000000001D010000-0x000000001D01C000-memory.dmp

memory/3304-41-0x000000001D140000-0x000000001D154000-memory.dmp

memory/3304-42-0x0000000001040000-0x0000000001050000-memory.dmp

memory/3304-43-0x00000000013D0000-0x00000000013E4000-memory.dmp

memory/3304-44-0x0000000000E70000-0x0000000000E7E000-memory.dmp

memory/3304-45-0x0000000000E80000-0x0000000000E9E000-memory.dmp

memory/3304-46-0x0000000000EF0000-0x0000000000EFA000-memory.dmp

memory/3304-47-0x0000000000F20000-0x0000000000F4E000-memory.dmp

memory/3304-48-0x0000000000F50000-0x0000000000F64000-memory.dmp

memory/3304-49-0x000000001C810000-0x000000001C910000-memory.dmp

memory/3304-50-0x000000001C810000-0x000000001C910000-memory.dmp

memory/3304-51-0x0000000001210000-0x0000000001220000-memory.dmp

memory/3304-52-0x000000001C810000-0x000000001C910000-memory.dmp

memory/3304-54-0x000000001DFC0000-0x000000001E022000-memory.dmp

memory/3304-56-0x000000001C810000-0x000000001C910000-memory.dmp

memory/3304-57-0x000000001C810000-0x000000001C910000-memory.dmp

memory/3304-58-0x000000001C810000-0x000000001C910000-memory.dmp

memory/3304-59-0x000000001C810000-0x000000001C910000-memory.dmp