Malware Analysis Report

2024-11-30 05:41

Sample ID 240619-cec8vasama
Target c2a31fc8a9b96960576cd9bb519b32705b3d07285f3f3983a501305e51cd567b
SHA256 c2a31fc8a9b96960576cd9bb519b32705b3d07285f3f3983a501305e51cd567b
Tags
agenttesla 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

c2a31fc8a9b96960576cd9bb519b32705b3d07285f3f3983a501305e51cd567b

Threat Level: Known bad

The file c2a31fc8a9b96960576cd9bb519b32705b3d07285f3f3983a501305e51cd567b was found to be: Known bad.

Malicious Activity Summary

agenttesla keylogger persistence spyware stealer trojan

AgentTesla

Loads dropped DLL

Drops startup file

Executes dropped EXE

Looks up external IP address via web service

Adds Run key to start application

AutoIT Executable

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious behavior: MapViewOfSection

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-19 01:59

Signatures

AutoIT Executable

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-19 01:59

Reported

2024-06-19 02:01

Platform

win7-20240221-en

Max time kernel

119s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c2a31fc8a9b96960576cd9bb519b32705b3d07285f3f3983a501305e51cd567b.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\samples.vbs C:\Users\Admin\AppData\Local\directory\samples.exe N/A

Executes dropped EXE

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\YVCcTv = "C:\\Users\\Admin\\AppData\\Roaming\\YVCcTv\\YVCcTv.exe" C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A api.ipify.org N/A N/A
N/A api.ipify.org N/A N/A
N/A ip-api.com N/A N/A

AutoIT Executable

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2760 set thread context of 2716 N/A C:\Users\Admin\AppData\Local\directory\samples.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious behavior: MapViewOfSection

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2928 wrote to memory of 2760 N/A C:\Users\Admin\AppData\Local\Temp\c2a31fc8a9b96960576cd9bb519b32705b3d07285f3f3983a501305e51cd567b.exe C:\Users\Admin\AppData\Local\directory\samples.exe
PID 2928 wrote to memory of 2760 N/A C:\Users\Admin\AppData\Local\Temp\c2a31fc8a9b96960576cd9bb519b32705b3d07285f3f3983a501305e51cd567b.exe C:\Users\Admin\AppData\Local\directory\samples.exe
PID 2928 wrote to memory of 2760 N/A C:\Users\Admin\AppData\Local\Temp\c2a31fc8a9b96960576cd9bb519b32705b3d07285f3f3983a501305e51cd567b.exe C:\Users\Admin\AppData\Local\directory\samples.exe
PID 2928 wrote to memory of 2760 N/A C:\Users\Admin\AppData\Local\Temp\c2a31fc8a9b96960576cd9bb519b32705b3d07285f3f3983a501305e51cd567b.exe C:\Users\Admin\AppData\Local\directory\samples.exe
PID 2760 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\directory\samples.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2760 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\directory\samples.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2760 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\directory\samples.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2760 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\directory\samples.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2760 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\directory\samples.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2760 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\directory\samples.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2760 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\directory\samples.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2760 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\directory\samples.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Processes

C:\Users\Admin\AppData\Local\Temp\c2a31fc8a9b96960576cd9bb519b32705b3d07285f3f3983a501305e51cd567b.exe

"C:\Users\Admin\AppData\Local\Temp\c2a31fc8a9b96960576cd9bb519b32705b3d07285f3f3983a501305e51cd567b.exe"

C:\Users\Admin\AppData\Local\directory\samples.exe

"C:\Users\Admin\AppData\Local\Temp\c2a31fc8a9b96960576cd9bb519b32705b3d07285f3f3983a501305e51cd567b.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

"C:\Users\Admin\AppData\Local\Temp\c2a31fc8a9b96960576cd9bb519b32705b3d07285f3f3983a501305e51cd567b.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 api.ipify.org udp
US 172.67.74.152:443 api.ipify.org tcp
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp

Files

memory/2928-10-0x00000000000B0000-0x00000000000B4000-memory.dmp

\Users\Admin\AppData\Local\directory\samples.exe

MD5 b4692a7d7be3798dc715deb097b2efb1
SHA1 9c1891bd7b46da3e2c210fa81b8307b299830ddc
SHA256 c2a31fc8a9b96960576cd9bb519b32705b3d07285f3f3983a501305e51cd567b
SHA512 237a9447f7fb8fceaaa9592ecb60001ada9d2c0d8b47bd22808ef41fc61ebb58f10ca2a904bf4cc719d51cab7becc6fdea8a6ddfdc6d301540e9e5fd5746dbcd

C:\Users\Admin\AppData\Local\Temp\biopsies

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

memory/2716-30-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2716-32-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2716-34-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2716-35-0x000000007471E000-0x000000007471F000-memory.dmp

memory/2716-36-0x0000000074710000-0x0000000074DFE000-memory.dmp

memory/2716-38-0x000000007471E000-0x000000007471F000-memory.dmp

memory/2716-39-0x0000000074710000-0x0000000074DFE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-19 01:59

Reported

2024-06-19 02:01

Platform

win10v2004-20240508-en

Max time kernel

131s

Max time network

132s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c2a31fc8a9b96960576cd9bb519b32705b3d07285f3f3983a501305e51cd567b.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\samples.vbs C:\Users\Admin\AppData\Local\directory\samples.exe N/A

Executes dropped EXE

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\YVCcTv = "C:\\Users\\Admin\\AppData\\Roaming\\YVCcTv\\YVCcTv.exe" C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A api.ipify.org N/A N/A
N/A api.ipify.org N/A N/A
N/A ip-api.com N/A N/A

AutoIT Executable

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 5080 set thread context of 844 N/A C:\Users\Admin\AppData\Local\directory\samples.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Suspicious behavior: MapViewOfSection

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c2a31fc8a9b96960576cd9bb519b32705b3d07285f3f3983a501305e51cd567b.exe

"C:\Users\Admin\AppData\Local\Temp\c2a31fc8a9b96960576cd9bb519b32705b3d07285f3f3983a501305e51cd567b.exe"

C:\Users\Admin\AppData\Local\directory\samples.exe

"C:\Users\Admin\AppData\Local\Temp\c2a31fc8a9b96960576cd9bb519b32705b3d07285f3f3983a501305e51cd567b.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

"C:\Users\Admin\AppData\Local\Temp\c2a31fc8a9b96960576cd9bb519b32705b3d07285f3f3983a501305e51cd567b.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4456,i,2607710392823067546,4648797561512801463,262144 --variations-seed-version --mojo-platform-channel-handle=1304 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 api.ipify.org udp
US 104.26.13.205:443 api.ipify.org tcp
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 205.13.26.104.in-addr.arpa udp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp

Files

memory/2696-10-0x0000000002540000-0x0000000002544000-memory.dmp

C:\Users\Admin\AppData\Local\directory\samples.exe

MD5 b4692a7d7be3798dc715deb097b2efb1
SHA1 9c1891bd7b46da3e2c210fa81b8307b299830ddc
SHA256 c2a31fc8a9b96960576cd9bb519b32705b3d07285f3f3983a501305e51cd567b
SHA512 237a9447f7fb8fceaaa9592ecb60001ada9d2c0d8b47bd22808ef41fc61ebb58f10ca2a904bf4cc719d51cab7becc6fdea8a6ddfdc6d301540e9e5fd5746dbcd

C:\Users\Admin\AppData\Local\Temp\biopsies

MD5 c13e586ac8436b36ca0e58bb2f6315e7
SHA1 f810b843e323af826b4a27633231a1fb01600abd
SHA256 df0e442f23fa28df14cc4a2b3e6f70de40efd88f6324fb92ec0361e6a8d2e052
SHA512 642a3674fd6593681a382235aad3793a09f925837410a5b7e1faa0f7b4f7d631d0d617f1781a32e8777b4ac5a223c75dc55464e0af22ca2b7785961f1b13469f

C:\Users\Admin\AppData\Local\Temp\thixophobia

MD5 ceb00009587cbab71a1e9150415a8ffa
SHA1 f61231dc166504c0ff14400b55002e99b30c22c6
SHA256 61b2ec8a02934513af45ebb2f9638ed24ff87abc49db9909eb7c219ee433c2d3
SHA512 6f52e83c1b2c3c5fe7fa90400748856beae794a24ffffbf2c353fb72c5135fa02edf6e94497f316c067a5f58867f523e7176bd7a57b5905039e4642da89e8ac5

memory/844-28-0x0000000000400000-0x0000000000442000-memory.dmp

memory/844-29-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

memory/844-30-0x0000000005000000-0x00000000055A4000-memory.dmp

memory/844-31-0x0000000004BD0000-0x0000000004C36000-memory.dmp

memory/844-32-0x0000000074BF0000-0x00000000753A0000-memory.dmp

memory/844-34-0x0000000006040000-0x0000000006090000-memory.dmp

memory/844-35-0x0000000006130000-0x00000000061C2000-memory.dmp

memory/844-36-0x00000000060C0000-0x00000000060CA000-memory.dmp

memory/844-37-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

memory/844-38-0x0000000074BF0000-0x00000000753A0000-memory.dmp