Malware Analysis Report

2025-08-05 12:54

Sample ID 230803-s5xceadh99
Target revised_invoice.exe
SHA256 f6bdba555d1356168f7f1581949ab5ca8d6b20e9a6495e0cfcef8d3b129638a0
Tags
snakekeylogger keylogger spyware stealer
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

f6bdba555d1356168f7f1581949ab5ca8d6b20e9a6495e0cfcef8d3b129638a0

Threat Level: Known bad

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

Malicious Activity Summary

snakekeylogger keylogger spyware stealer

Snake Keylogger

Snake Keylogger payload

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Looks up external IP address via web service

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-08-03 15:43

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-08-03 15:43

Reported

2023-08-03 15:45

Platform

win7-20230712-en

Max time kernel

121s

Max time network

124s

Command Line

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

Signatures

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2248 wrote to memory of 2232 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2248 wrote to memory of 2232 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2248 wrote to memory of 2232 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2248 wrote to memory of 2232 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2248 wrote to memory of 2820 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Windows\SysWOW64\schtasks.exe
PID 2248 wrote to memory of 2820 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Windows\SysWOW64\schtasks.exe
PID 2248 wrote to memory of 2820 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Windows\SysWOW64\schtasks.exe
PID 2248 wrote to memory of 2820 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Windows\SysWOW64\schtasks.exe
PID 2248 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 2248 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 2248 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 2248 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 2248 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 2248 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 2248 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 2248 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 2248 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 2248 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 2248 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 2248 wrote to memory of 2956 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 2248 wrote to memory of 2064 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 2248 wrote to memory of 2064 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 2248 wrote to memory of 2064 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 2248 wrote to memory of 2064 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 2248 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 2248 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 2248 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 2248 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe

Processes

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

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

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VCYZNOqT.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VCYZNOqT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1E2B.tmp"

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

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

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

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

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

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

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

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

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

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

Network

N/A

Files

memory/2248-54-0x0000000000390000-0x0000000000466000-memory.dmp

memory/2248-55-0x00000000743F0000-0x0000000074ADE000-memory.dmp

memory/2248-56-0x0000000004C30000-0x0000000004C70000-memory.dmp

memory/2248-57-0x0000000000510000-0x0000000000520000-memory.dmp

memory/2248-58-0x00000000743F0000-0x0000000074ADE000-memory.dmp

memory/2248-59-0x0000000004C30000-0x0000000004C70000-memory.dmp

memory/2248-60-0x0000000000520000-0x000000000052A000-memory.dmp

memory/2248-61-0x0000000004BD0000-0x0000000004C34000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp1E2B.tmp

MD5 2138db1725037b9afb08e1378d467431
SHA1 1ae329728fbe571d659319fa8960df71ddb5b9ca
SHA256 4eadbe73e4ea6ddd26f8b1168eb7a5f88aa4eeba2ab430be1650956e380d9217
SHA512 add803966ffefb58418df0966510cac03ee36b1e5abaf4eab6668faa7eb45bab126acc5bcdb45eb80150fe87030846000086c730b7a4ce28e938c8faeba13752

memory/2248-67-0x00000000743F0000-0x0000000074ADE000-memory.dmp

memory/2232-70-0x0000000074530000-0x0000000074ADB000-memory.dmp

memory/2232-71-0x0000000074530000-0x0000000074ADB000-memory.dmp

memory/2232-72-0x0000000000830000-0x0000000000870000-memory.dmp

memory/2232-73-0x0000000000830000-0x0000000000870000-memory.dmp

memory/2232-74-0x0000000000830000-0x0000000000870000-memory.dmp

memory/2232-75-0x0000000074530000-0x0000000074ADB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-08-03 15:43

Reported

2023-08-03 15:45

Platform

win10v2004-20230703-en

Max time kernel

143s

Max time network

154s

Command Line

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

Signatures

Snake Keylogger

stealer keylogger snakekeylogger

Snake Keylogger payload

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

Reads user/profile data of local email clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Looks up external IP address via web service

Description Indicator Process Target
N/A checkip.dyndns.org N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1576 set thread context of 4428 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1576 wrote to memory of 2140 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1576 wrote to memory of 2140 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1576 wrote to memory of 2140 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1576 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Windows\SysWOW64\schtasks.exe
PID 1576 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Windows\SysWOW64\schtasks.exe
PID 1576 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Windows\SysWOW64\schtasks.exe
PID 1576 wrote to memory of 4428 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 1576 wrote to memory of 4428 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 1576 wrote to memory of 4428 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 1576 wrote to memory of 4428 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 1576 wrote to memory of 4428 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 1576 wrote to memory of 4428 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 1576 wrote to memory of 4428 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe
PID 1576 wrote to memory of 4428 N/A C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe C:\Users\Admin\AppData\Local\Temp\revised_invoice.exe

Processes

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

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

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VCYZNOqT.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VCYZNOqT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9EE.tmp"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 240.81.21.72.in-addr.arpa udp
US 8.8.8.8:53 checkip.dyndns.org udp
US 158.101.44.242:80 checkip.dyndns.org tcp
US 8.8.8.8:53 242.44.101.158.in-addr.arpa udp
US 8.8.8.8:53 63.13.109.52.in-addr.arpa udp
US 8.8.8.8:53 14.173.189.20.in-addr.arpa udp

Files

memory/1576-133-0x0000000000340000-0x0000000000416000-memory.dmp

memory/1576-134-0x0000000074550000-0x0000000074D00000-memory.dmp

memory/1576-135-0x0000000005310000-0x00000000058B4000-memory.dmp

memory/1576-136-0x0000000004E40000-0x0000000004ED2000-memory.dmp

memory/1576-137-0x0000000004FC0000-0x0000000004FD0000-memory.dmp

memory/1576-138-0x0000000004E30000-0x0000000004E3A000-memory.dmp

memory/1576-139-0x00000000050C0000-0x000000000515C000-memory.dmp

memory/1576-140-0x0000000074550000-0x0000000074D00000-memory.dmp

memory/1576-141-0x0000000004FC0000-0x0000000004FD0000-memory.dmp

memory/2140-146-0x0000000004CA0000-0x0000000004CD6000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp9EE.tmp

MD5 3926b5405542bcbb989f14889a355546
SHA1 2ff13fa0386f83398140d04f4d1652a2ad7e73cf
SHA256 808197375c48812974adb4c788aebebee9555e2f9e36604c4c7018d868c51692
SHA512 a0cec773d47d35b704db19bc234686a45d6ed849c67d08d605898dd70e1e77959430ff5410455035c74d12f3a3ba3d0d196cd60a676d3e48e8b6c665b078520c

memory/2140-148-0x0000000074550000-0x0000000074D00000-memory.dmp

memory/2140-150-0x0000000002940000-0x0000000002950000-memory.dmp

memory/2140-149-0x0000000002940000-0x0000000002950000-memory.dmp

memory/4428-151-0x0000000000400000-0x0000000000426000-memory.dmp

memory/2140-152-0x0000000005310000-0x0000000005938000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\revised_invoice.exe.log

MD5 8ec831f3e3a3f77e4a7b9cd32b48384c
SHA1 d83f09fd87c5bd86e045873c231c14836e76a05c
SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA512 26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

memory/4428-155-0x0000000074550000-0x0000000074D00000-memory.dmp

memory/1576-156-0x0000000074550000-0x0000000074D00000-memory.dmp

memory/4428-157-0x00000000054F0000-0x0000000005500000-memory.dmp

memory/2140-158-0x0000000005AC0000-0x0000000005AE2000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_swmjikkp.3r1.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2140-169-0x0000000005D70000-0x0000000005DD6000-memory.dmp

memory/2140-164-0x0000000005B90000-0x0000000005BF6000-memory.dmp

memory/2140-170-0x0000000004FE0000-0x0000000004FFE000-memory.dmp

memory/2140-171-0x0000000002940000-0x0000000002950000-memory.dmp

memory/2140-172-0x000000007F1E0000-0x000000007F1F0000-memory.dmp

memory/2140-173-0x0000000006840000-0x0000000006872000-memory.dmp

memory/2140-174-0x000000006FF80000-0x000000006FFCC000-memory.dmp

memory/2140-184-0x0000000006820000-0x000000000683E000-memory.dmp

memory/2140-185-0x0000000007C10000-0x000000000828A000-memory.dmp

memory/2140-186-0x0000000006910000-0x000000000692A000-memory.dmp

memory/2140-187-0x0000000074550000-0x0000000074D00000-memory.dmp

memory/2140-188-0x00000000075F0000-0x00000000075FA000-memory.dmp

memory/2140-189-0x00000000077F0000-0x0000000007886000-memory.dmp

memory/4428-190-0x00000000066F0000-0x00000000068B2000-memory.dmp

memory/2140-191-0x0000000002940000-0x0000000002950000-memory.dmp

memory/2140-192-0x0000000002940000-0x0000000002950000-memory.dmp

memory/2140-193-0x00000000077C0000-0x00000000077CE000-memory.dmp

memory/2140-194-0x00000000078C0000-0x00000000078DA000-memory.dmp

memory/2140-195-0x00000000078B0000-0x00000000078B8000-memory.dmp

memory/4428-196-0x0000000074550000-0x0000000074D00000-memory.dmp

memory/2140-199-0x0000000074550000-0x0000000074D00000-memory.dmp

memory/4428-200-0x00000000054F0000-0x0000000005500000-memory.dmp