Malware Analysis Report

2025-08-10 21:19

Sample ID 241031-lncs4stqfs
Target whatsappjpg.exe
SHA256 fb89c14504a9c08ddc006305975b11a20f0595e1f2ad7bd9475ba5c245eda0f6
Tags
agenttesla discovery keylogger 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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

fb89c14504a9c08ddc006305975b11a20f0595e1f2ad7bd9475ba5c245eda0f6

Threat Level: Known bad

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

Malicious Activity Summary

agenttesla discovery keylogger spyware stealer trojan

Agenttesla family

AgentTesla

Loads dropped DLL

Reads user/profile data of local email clients

Reads WinSCP keys stored on the system

Reads data files stored by FTP clients

Reads user/profile data of web browsers

Looks up external IP address via web service

Suspicious use of NtCreateThreadExHideFromDebugger

Suspicious use of SetThreadContext

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

Program crash

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-31 09:40

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-31 09:40

Reported

2024-10-31 09:42

Platform

win7-20240903-en

Max time kernel

148s

Max time network

149s

Command Line

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

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Agenttesla family

agenttesla

Loads dropped DLL

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

Reads WinSCP keys stored on the system

spyware stealer

Reads data files stored by FTP clients

spyware stealer

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 ip-api.com N/A N/A

Suspicious use of NtCreateThreadExHideFromDebugger

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

Suspicious use of NtSetInformationThreadHideFromDebugger

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2128 set thread context of 1816 N/A C:\Users\Admin\AppData\Local\Temp\whatsappjpg.exe C:\Users\Admin\AppData\Local\Temp\whatsappjpg.exe

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\whatsappjpg.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\whatsappjpg.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: MapViewOfSection

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

Suspicious use of AdjustPrivilegeToken

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

Processes

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

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 hublore.in udp
US 45.43.14.134:80 hublore.in tcp
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp

Files

\Users\Admin\AppData\Local\Temp\nsoBD69.tmp\System.dll

MD5 7399323923e3946fe9140132ac388132
SHA1 728257d06c452449b1241769b459f091aabcffc5
SHA256 5a1c20a3e2e2eb182976977669f2c5d9f3104477e98f74d69d2434e79b92fdc3
SHA512 d6f28ba761351f374ae007c780be27758aea7b9f998e2a88a542eede459d18700adffe71abcb52b8a8c00695efb7ccc280175b5eeb57ca9a645542edfabb64f1

memory/2128-13-0x0000000076E81000-0x0000000076F82000-memory.dmp

memory/2128-14-0x0000000076E80000-0x0000000077029000-memory.dmp

memory/1816-15-0x0000000076E80000-0x0000000077029000-memory.dmp

memory/1816-16-0x0000000000490000-0x00000000014F2000-memory.dmp

memory/1816-17-0x0000000000490000-0x00000000014F2000-memory.dmp

memory/1816-18-0x0000000000490000-0x00000000004D2000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-31 09:40

Reported

2024-10-31 09:42

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

150s

Command Line

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

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Agenttesla family

agenttesla

Loads dropped DLL

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

Reads WinSCP keys stored on the system

spyware stealer

Reads data files stored by FTP clients

spyware stealer

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 ip-api.com N/A N/A

Suspicious use of NtCreateThreadExHideFromDebugger

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

Suspicious use of NtSetInformationThreadHideFromDebugger

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4916 set thread context of 1652 N/A C:\Users\Admin\AppData\Local\Temp\whatsappjpg.exe C:\Users\Admin\AppData\Local\Temp\whatsappjpg.exe

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\whatsappjpg.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\whatsappjpg.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: MapViewOfSection

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

Suspicious use of AdjustPrivilegeToken

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

Processes

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

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 hublore.in udp
US 45.43.14.134:80 hublore.in tcp
US 8.8.8.8:53 134.14.43.45.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
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 67.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 mail.hearing-vision.com udp
ID 203.161.184.34:21 mail.hearing-vision.com tcp
US 8.8.8.8:53 34.184.161.203.in-addr.arpa udp
ID 203.161.184.34:61246 mail.hearing-vision.com tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

C:\Users\Admin\AppData\Local\Temp\nsrFD10.tmp\System.dll

MD5 7399323923e3946fe9140132ac388132
SHA1 728257d06c452449b1241769b459f091aabcffc5
SHA256 5a1c20a3e2e2eb182976977669f2c5d9f3104477e98f74d69d2434e79b92fdc3
SHA512 d6f28ba761351f374ae007c780be27758aea7b9f998e2a88a542eede459d18700adffe71abcb52b8a8c00695efb7ccc280175b5eeb57ca9a645542edfabb64f1

memory/4916-13-0x0000000077DA1000-0x0000000077EC1000-memory.dmp

memory/4916-14-0x0000000077DA1000-0x0000000077EC1000-memory.dmp

memory/4916-15-0x0000000010004000-0x0000000010005000-memory.dmp

memory/1652-16-0x0000000077E28000-0x0000000077E29000-memory.dmp

memory/1652-18-0x0000000077E45000-0x0000000077E46000-memory.dmp

memory/1652-17-0x0000000000490000-0x00000000016E4000-memory.dmp

memory/1652-19-0x0000000000490000-0x00000000016E4000-memory.dmp

memory/1652-20-0x0000000077DA1000-0x0000000077EC1000-memory.dmp

memory/1652-21-0x0000000072EDE000-0x0000000072EDF000-memory.dmp

memory/1652-22-0x0000000000490000-0x00000000004D2000-memory.dmp

memory/1652-23-0x00000000387A0000-0x0000000038D44000-memory.dmp

memory/1652-24-0x0000000038620000-0x0000000038686000-memory.dmp

memory/1652-25-0x0000000072ED0000-0x0000000073680000-memory.dmp

memory/1652-26-0x0000000039410000-0x00000000394A2000-memory.dmp

memory/1652-27-0x00000000394E0000-0x0000000039530000-memory.dmp

memory/1652-28-0x0000000039530000-0x00000000395CC000-memory.dmp

memory/1652-29-0x00000000396A0000-0x00000000396AA000-memory.dmp

memory/1652-31-0x0000000072EDE000-0x0000000072EDF000-memory.dmp

memory/1652-32-0x0000000072ED0000-0x0000000073680000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-10-31 09:40

Reported

2024-10-31 09:42

Platform

win7-20240903-en

Max time kernel

121s

Max time network

122s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2864 -s 224

Network

N/A

Files

N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-10-31 09:40

Reported

2024-10-31 09:42

Platform

win10v2004-20241007-en

Max time kernel

136s

Max time network

143s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3304 wrote to memory of 1156 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3304 wrote to memory of 1156 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3304 wrote to memory of 1156 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1156 -ip 1156

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1156 -s 616

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 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp

Files

N/A