agenttesla | ea458deec798ececbd3fda65fc05928c0cfc4c54eccc76f68c8dfc6d1e434024

Analysis

max time kernel
141s
max time network
136s
platform
windows10-1703_x64
resource
win10-20240611-en
resource tags

arch:x64arch:x86image:win10-20240611-enlocale:en-usos:windows10-1703-x64system
submitted
29-06-2024 06:19

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General

Target

无害_loser.exe
Size

5.2MB
MD5

c81c10d2b6f80f12fe481141d70c536e
SHA1

90b79aa16857a42466fcc2181e91701ffbf5d5a1
SHA256

ea458deec798ececbd3fda65fc05928c0cfc4c54eccc76f68c8dfc6d1e434024
SHA512

1648f975ffb40ba3d2c2a5b4b672a610cc92ae7afce1f71299f0636ff931bb351a0506929596e001780c434a2b5d467cfe721f72596d1bc8a053b6c08bbcb25d
SSDEEP

98304:4AnfzVUmMRJDbHhGUUu4d1Ma04HFlaUxe9c4+rlNL2fSBm8b91a2:4Anfzum+nYD1z75e9P+rlN2aU8va

Score

10^/10

agenttesla evasion keylogger ransomware spyware stealer themida trojan

Malware Config

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
AgentTesla payload 1 IoCs

Processes:

resource yara_rule

behavioral2/memory/904-20-0x0000000010000000-0x0000000010214000-memory.dmp family_agenttesla
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

无害_loser.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 无害_loser.exe

resource	yara_rule
behavioral2/memory/904-20-0x0000000010000000-0x0000000010214000-memory.dmp	family_agenttesla

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	无害_loser.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

无害_loser.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	无害_loser.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	无害_loser.exe

Themida packer 2 IoCs
Detects Themida, an advanced Windows software protection system.
themida

Processes:

resource yara_rule

behavioral2/memory/904-15-0x0000000000400000-0x000000000130A000-memory.dmp themida
behavioral2/memory/904-16-0x0000000000400000-0x000000000130A000-memory.dmp themida
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

无害_loser.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 无害_loser.exe
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
ransomware

Defacement
T1491

Modify Registry
T1112

Processes:

无害_loser.exe

description ioc process

Set value (str) \REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000\Control Panel\Desktop\Wallpaper = "C:\\hotpfp.jpg" 无害_loser.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

无害_loser.exe

pid process

904 无害_loser.exe

resource	yara_rule
behavioral2/memory/904-15-0x0000000000400000-0x000000000130A000-memory.dmp	themida
behavioral2/memory/904-16-0x0000000000400000-0x000000000130A000-memory.dmp	themida

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	无害_loser.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1453213197-474736321-1741884505-1000\Control Panel\Desktop\Wallpaper = "C:\\hotpfp.jpg"	无害_loser.exe

pid	process
904	无害_loser.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

无害_loser.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	无害_loser.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	无害_loser.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemVersion	无害_loser.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

无害_loser.exe

pid process

904 无害_loser.exe
904 无害_loser.exe
904 无害_loser.exe
904 无害_loser.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

无害_loser.exe

description pid process

Token: SeDebugPrivilege 904 无害_loser.exe

pid	process
904	无害_loser.exe
904	无害_loser.exe
904	无害_loser.exe
904	无害_loser.exe

description	pid	process
Token: SeDebugPrivilege	904	无害_loser.exe

C:\Users\Admin\AppData\Local\Temp\无害_loser.exe
"C:\Users\Admin\AppData\Local\Temp\无害_loser.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:904

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

memory/904-0-0x0000000000400000-0x000000000130A000-memory.dmp

Filesize
15.0MB

Download
memory/904-1-0x0000000073FD6000-0x0000000073FD7000-memory.dmp

Filesize
4KB

Download
memory/904-2-0x0000000073EE0000-0x00000000740A2000-memory.dmp

Filesize
1.8MB

Download
memory/904-3-0x0000000073EE0000-0x00000000740A2000-memory.dmp

Filesize
1.8MB

Download
memory/904-4-0x0000000073EE0000-0x00000000740A2000-memory.dmp

Filesize
1.8MB

Download
memory/904-5-0x0000000073EE0000-0x00000000740A2000-memory.dmp

Filesize
1.8MB

Download
memory/904-6-0x0000000073EE0000-0x00000000740A2000-memory.dmp

Filesize
1.8MB

Download
memory/904-7-0x0000000073EE0000-0x00000000740A2000-memory.dmp

Filesize
1.8MB

Download
memory/904-12-0x0000000073EE0000-0x00000000740A2000-memory.dmp

Filesize
1.8MB

Download
memory/904-14-0x0000000073EE0000-0x00000000740A2000-memory.dmp

Filesize
1.8MB

Download
memory/904-15-0x0000000000400000-0x000000000130A000-memory.dmp

Filesize
15.0MB

Download
memory/904-16-0x0000000000400000-0x000000000130A000-memory.dmp

Filesize
15.0MB

Download
memory/904-17-0x00000000059A0000-0x0000000005E9E000-memory.dmp

Filesize
5.0MB

Download
memory/904-18-0x0000000005EE0000-0x0000000005F72000-memory.dmp

Filesize
584KB

Download
memory/904-19-0x00000000060F0000-0x00000000060FA000-memory.dmp

Filesize
40KB

Download
memory/904-20-0x0000000010000000-0x0000000010214000-memory.dmp

Filesize
2.1MB

Download
memory/904-22-0x0000000000400000-0x000000000130A000-memory.dmp

Filesize
15.0MB

Download
memory/904-23-0x0000000073EE0000-0x00000000740A2000-memory.dmp

Filesize
1.8MB

Download
memory/904-24-0x0000000073EE0000-0x00000000740A2000-memory.dmp

Filesize
1.8MB

Download
memory/904-26-0x0000000073FD6000-0x0000000073FD7000-memory.dmp

Filesize
4KB

Download