agenttesla | a8592530826bffe4e397e6f53054c366cef50d567bc9f54ddb4c4a960cb21537

General

Target

INV45367.exe
Size

441KB
MD5

8dfeeb5848cde9dfd0aa8c504eefeda0
SHA1

8db0db50f886d43665351dba54fca2652d1db18e
SHA256

07314d5b91857ca3814c9388a01179c00d6fd8aeb8ff93a73327cffce42c8650
SHA512

d4d0b26035da900546be561b4abde39346309a7069ce58ea0faeb4c9dcdd32aea15880333d937337b62b55510924acc239b98bd119d3cbb087095a2e0222acce

Score

10^/10

agenttesla evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.gmail.com
Port:
587
Username:
[email protected]
Password:
z123456789ok

Signatures

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

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral3/memory/1716-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral3/memory/1716-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral3/memory/1716-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral3/memory/1716-66-0x000000000044703E-mapping.dmp	family_agenttesla
behavioral3/memory/1716-68-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral3/memory/1716-70-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

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:

INV45367.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	INV45367.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	INV45367.exe

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:

INV45367.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	INV45367.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	INV45367.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

INV45367.exe

description pid process target process

PID 1964 set thread context of 1716 1964 INV45367.exe MSBuild.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1888 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

INV45367.exeMSBuild.exe

pid process

1964 INV45367.exe
1716 MSBuild.exe
1716 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

INV45367.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 1964 INV45367.exe
Token: SeDebugPrivilege 1716 MSBuild.exe

description	pid	process	target process
PID 1964 set thread context of 1716	1964	INV45367.exe	MSBuild.exe

pid	process
1888	schtasks.exe

pid	process
1964	INV45367.exe
1716	MSBuild.exe
1716	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	1964	INV45367.exe
Token: SeDebugPrivilege	1716	MSBuild.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

INV45367.exe

description	pid	process	target process
PID 1964 wrote to memory of 1888	1964	INV45367.exe	schtasks.exe
PID 1964 wrote to memory of 1888	1964	INV45367.exe	schtasks.exe
PID 1964 wrote to memory of 1888	1964	INV45367.exe	schtasks.exe
PID 1964 wrote to memory of 1888	1964	INV45367.exe	schtasks.exe
PID 1964 wrote to memory of 1716	1964	INV45367.exe	MSBuild.exe
PID 1964 wrote to memory of 1716	1964	INV45367.exe	MSBuild.exe
PID 1964 wrote to memory of 1716	1964	INV45367.exe	MSBuild.exe
PID 1964 wrote to memory of 1716	1964	INV45367.exe	MSBuild.exe
PID 1964 wrote to memory of 1716	1964	INV45367.exe	MSBuild.exe
PID 1964 wrote to memory of 1716	1964	INV45367.exe	MSBuild.exe
PID 1964 wrote to memory of 1716	1964	INV45367.exe	MSBuild.exe
PID 1964 wrote to memory of 1716	1964	INV45367.exe	MSBuild.exe
PID 1964 wrote to memory of 1716	1964	INV45367.exe	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\INV45367.exe
"C:\Users\Admin\AppData\Local\Temp\INV45367.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1964

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EWrpmGqzAkDE" /XML "C:\Users\Admin\AppData\Local\Temp\tmp191D.tmp"
2⤵
- Creates scheduled task(s)
PID:1888

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1716

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp191D.tmp
Filesize
1KB

MD5
ca9b1a295fb2f5de198620c5529865ee

SHA1
437d34b0a9c6810fa0befea4487cad5417592cea

SHA256
69e80f0f6b8cef5b62c475da639bdafb10acd227710b03d9ab4fc5f3fd454fc7

SHA512
df426a3d879d7a98a22f46ef5871cccdbe11fbeffb85e1727eab0bf4ee79c76e5c02808ff12f8812e6344de3ac7a56fd07c632929bd97ea73749913892fdcd3f

Download Submit
memory/1716-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1716-60-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1716-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1716-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1716-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1716-66-0x000000000044703E-mapping.dmp

Download
memory/1716-68-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1716-70-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1888-58-0x0000000000000000-mapping.dmp

Download
memory/1964-56-0x00000000003E0000-0x00000000003E8000-memory.dmp

Filesize
32KB

Download
memory/1964-57-0x0000000002220000-0x0000000002274000-memory.dmp

Filesize
336KB

Download
memory/1964-55-0x00000000756E1000-0x00000000756E3000-memory.dmp

Filesize
8KB

Download
memory/1964-54-0x0000000000C50000-0x0000000000CC4000-memory.dmp

Filesize
464KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads