agenttesla | 3dff084b15ce8f39dbbb23b1a0ccad0634f716cc35218572349ed31d36effec2

General

Target

DHL_AWB 2870565795/DHL_AWB 2870565795.exe
Size

478KB
MD5

58f6a878d2834fe4ef2748a6ff34da71
SHA1

cd446f562bdb956a358c5230bc9b255356a5565e
SHA256

d2bd7d282670277d1f8f2f569ef18f889a634c11909d9f157d66837a66618717
SHA512

206fd2c9f0ba720e68951a329dd6a1760a474cf5313b05ff355dda9fec49f66f5c02c5ddf469a9f091926890a0345bb43de183e8990a7b47db45d5fe40e3a0b0
SSDEEP

12288:hznTdXs1M6tMy8JRwcM3ykuVu9p8KnZKzz+FWgxh0:9heMGMyCRwcGyz08KZKSW2

Score

10^/10

agenttesla collection evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5705602282:AAFcwBeX9coGMKJeokPZOq06CS7N1H2rCJI/

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

DHL_AWB 2870565795.exe

description ioc process

Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions DHL_AWB 2870565795.exe
Looks for VMWare Tools registry key 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

DHL_AWB 2870565795.exe

description ioc process

Key opened \REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools DHL_AWB 2870565795.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions	DHL_AWB 2870565795.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools	DHL_AWB 2870565795.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:

DHL_AWB 2870565795.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	DHL_AWB 2870565795.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	DHL_AWB 2870565795.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

InstallUtil.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\Temp% = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Temp%\\Temp%.exe"	InstallUtil.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 api.ipify.org
5 api.ipify.org

flow	ioc
4	api.ipify.org
5	api.ipify.org

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

DHL_AWB 2870565795.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	DHL_AWB 2870565795.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	DHL_AWB 2870565795.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

DHL_AWB 2870565795.exe

description pid process target process

PID 916 set thread context of 2028 916 DHL_AWB 2870565795.exe InstallUtil.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

InstallUtil.exe

pid process

2028 InstallUtil.exe
2028 InstallUtil.exe
2028 InstallUtil.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

InstallUtil.exe

description pid process

Token: SeDebugPrivilege 2028 InstallUtil.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

InstallUtil.exe

pid process

2028 InstallUtil.exe

description	pid	process	target process
PID 916 set thread context of 2028	916	DHL_AWB 2870565795.exe	InstallUtil.exe

pid	process
2028	InstallUtil.exe
2028	InstallUtil.exe
2028	InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	2028	InstallUtil.exe

pid	process
2028	InstallUtil.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

DHL_AWB 2870565795.exe

description	pid	process	target process
PID 916 wrote to memory of 2028	916	DHL_AWB 2870565795.exe	InstallUtil.exe
PID 916 wrote to memory of 2028	916	DHL_AWB 2870565795.exe	InstallUtil.exe
PID 916 wrote to memory of 2028	916	DHL_AWB 2870565795.exe	InstallUtil.exe
PID 916 wrote to memory of 2028	916	DHL_AWB 2870565795.exe	InstallUtil.exe
PID 916 wrote to memory of 2028	916	DHL_AWB 2870565795.exe	InstallUtil.exe
PID 916 wrote to memory of 2028	916	DHL_AWB 2870565795.exe	InstallUtil.exe
PID 916 wrote to memory of 2028	916	DHL_AWB 2870565795.exe	InstallUtil.exe
PID 916 wrote to memory of 2028	916	DHL_AWB 2870565795.exe	InstallUtil.exe
PID 916 wrote to memory of 2028	916	DHL_AWB 2870565795.exe	InstallUtil.exe
PID 916 wrote to memory of 2028	916	DHL_AWB 2870565795.exe	InstallUtil.exe
PID 916 wrote to memory of 2028	916	DHL_AWB 2870565795.exe	InstallUtil.exe
PID 916 wrote to memory of 2028	916	DHL_AWB 2870565795.exe	InstallUtil.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\DHL_AWB 2870565795\DHL_AWB 2870565795.exe
"C:\Users\Admin\AppData\Local\Temp\DHL_AWB 2870565795\DHL_AWB 2870565795.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:916

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:2028

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/916-54-0x0000000000C00000-0x0000000000C7C000-memory.dmp

Filesize
496KB

Download
memory/916-55-0x0000000002190000-0x000000000220A000-memory.dmp

Filesize
488KB

Download
memory/2028-56-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2028-57-0x0000000000437C9E-mapping.dmp

Download
memory/2028-61-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2028-59-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2028-62-0x0000000075B41000-0x0000000075B43000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads