agenttesla | 4e09d4dd3d6bddd35fba42f66d6a6883ac9d3f2e8e504af1f2829f325940cbfb

General

Target

RFQ #10072020.exe
Size

574KB
MD5

faf8fa16db367aee00c9529e044207eb
SHA1

1ddd4c28cee94eb71245e9b7958653beb6558a93
SHA256

5c2ad1b9bc4c16fce888a0cf989f0c6885de81d0753d8863c7cf1de604c4c8e6
SHA512

eef35a9e647182f7adb7d93ef5c3d67fc4702bfa630614d6ed026f0465f8db68ff51bc6d6e607b52bfd3459c3bda7b9e2b54c43dd60ed95b803868c2ebb9fbd9

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.mdist.us
Port:
587
Username:
receiving@mdist.us
Password:
Receiving#4321

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
behavioral1/memory/952-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/952-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/952-66-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/952-67-0x000000000044712E-mapping.dmp	family_agenttesla
behavioral1/memory/952-69-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/952-71-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

RegSvcs.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegSvcs.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

RFQ #10072020.exe

description pid process target process

PID 1516 set thread context of 952 1516 RFQ #10072020.exe RegSvcs.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

1488 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

584 REG.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

RFQ #10072020.exeRegSvcs.exe

pid process

1516 RFQ #10072020.exe
1516 RFQ #10072020.exe
1516 RFQ #10072020.exe
1516 RFQ #10072020.exe
952 RegSvcs.exe
952 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RFQ #10072020.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1516 RFQ #10072020.exe
Token: SeDebugPrivilege 952 RegSvcs.exe

description	pid	process	target process
PID 1516 set thread context of 952	1516	RFQ #10072020.exe	RegSvcs.exe

pid	process
1488	schtasks.exe

pid	process
584	REG.exe

pid	process
1516	RFQ #10072020.exe
1516	RFQ #10072020.exe
1516	RFQ #10072020.exe
1516	RFQ #10072020.exe
952	RegSvcs.exe
952	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1516	RFQ #10072020.exe
Token: SeDebugPrivilege	952	RegSvcs.exe

Suspicious use of WriteProcessMemory 41 IoCs

Processes:

RFQ #10072020.exeRegSvcs.exe

description	pid	process	target process
PID 1516 wrote to memory of 1488	1516	RFQ #10072020.exe	schtasks.exe
PID 1516 wrote to memory of 1488	1516	RFQ #10072020.exe	schtasks.exe
PID 1516 wrote to memory of 1488	1516	RFQ #10072020.exe	schtasks.exe
PID 1516 wrote to memory of 1488	1516	RFQ #10072020.exe	schtasks.exe
PID 1516 wrote to memory of 1360	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 1360	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 1360	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 1360	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 1360	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 1360	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 1360	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 1892	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 1892	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 1892	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 1892	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 1892	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 1892	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 1892	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 988	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 988	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 988	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 988	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 988	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 988	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 988	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 952	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 952	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 952	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 952	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 952	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 952	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 952	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 952	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 952	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 952	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 952	1516	RFQ #10072020.exe	RegSvcs.exe
PID 1516 wrote to memory of 952	1516	RFQ #10072020.exe	RegSvcs.exe
PID 952 wrote to memory of 584	952	RegSvcs.exe	REG.exe
PID 952 wrote to memory of 584	952	RegSvcs.exe	REG.exe
PID 952 wrote to memory of 584	952	RegSvcs.exe	REG.exe
PID 952 wrote to memory of 584	952	RegSvcs.exe	REG.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\RFQ #10072020.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ #10072020.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1516

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FCRnNgb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8769.tmp"
2⤵
- Creates scheduled task(s)
PID:1488

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:1360

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:1892

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:988

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:952

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
3⤵
- Modifies registry key
PID:584

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp8769.tmp
Filesize
1KB

MD5
21441659f1502e1255b12b77f3dfbb7e

SHA1
b6246796c5bdea16f10753e722ef460c36475658

SHA256
03249ba9b50247c8abb4ff108807c9d8405350cec8914763d4b993ca515d30d1

SHA512
8b38a1690d93250fd0d7be7cd93a03231088965d039ba918aba9704f3eeb111ececc7c88dfe77b2a6ac53c59a6b3f2bcddaead8f8677d27f535ade2bd688875f

Download Submit
memory/584-73-0x0000000000000000-mapping.dmp

Download
memory/952-67-0x000000000044712E-mapping.dmp

Download
memory/952-66-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/952-71-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/952-69-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/952-62-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/952-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/952-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/952-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1488-59-0x0000000000000000-mapping.dmp

Download
memory/1516-56-0x00000000001D0000-0x00000000001D8000-memory.dmp

Filesize
32KB

Download
memory/1516-54-0x0000000000880000-0x0000000000916000-memory.dmp

Filesize
600KB

Download
memory/1516-57-0x0000000000480000-0x00000000004D4000-memory.dmp

Filesize
336KB

Download
memory/1516-58-0x0000000075521000-0x0000000075523000-memory.dmp

Filesize
8KB

Download
memory/1516-55-0x00000000046E0000-0x000000000476A000-memory.dmp

Filesize
552KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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