agenttesla | 17324605be6f982cfcc72159f95280a29ccd42e1c57f8701ecfb9ddd6a8a4b7f

General

Target

202110207367475849758.PDF.exe
Size

28KB
MD5

efc321c36f4e1634c063378e4c3b3918
SHA1

97761a7e2ffa6fb8948184c2091099c681261a79
SHA256

17324605be6f982cfcc72159f95280a29ccd42e1c57f8701ecfb9ddd6a8a4b7f
SHA512

c2c9086b2d95efab45527cdddad2ebafd5a3c4196a897e0ca111f43c50778d9468d444fe3573e717a3e44eebbd84c5fb1b6d6842f27f505ab5d9192d23ec0c2b

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.privateemail.com
Port:
587
Username:
[email protected]
Password:
LOG777@@

Signatures

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

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

202110207367475849758.PDF.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\microsft\\videocrd.exe\","	202110207367475849758.PDF.exe

AgentTesla Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3444-120-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/3444-121-0x000000000043785E-mapping.dmp	family_agenttesla
behavioral2/memory/3444-128-0x0000000005710000-0x0000000005C0E000-memory.dmp	family_agenttesla

Executes dropped EXE 1 IoCs

Processes:

InstallUtil.exe

pid process

3444 InstallUtil.exe
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

pid	process
3444	InstallUtil.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

202110207367475849758.PDF.exe

description pid process target process

PID 2188 set thread context of 3444 2188 202110207367475849758.PDF.exe InstallUtil.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

202110207367475849758.PDF.exeInstallUtil.exe

pid process

2188 202110207367475849758.PDF.exe
2188 202110207367475849758.PDF.exe
3444 InstallUtil.exe
3444 InstallUtil.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

202110207367475849758.PDF.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 2188 202110207367475849758.PDF.exe
Token: SeDebugPrivilege 3444 InstallUtil.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

InstallUtil.exe

pid process

3444 InstallUtil.exe

description	pid	process	target process
PID 2188 set thread context of 3444	2188	202110207367475849758.PDF.exe	InstallUtil.exe

pid	process
2188	202110207367475849758.PDF.exe
2188	202110207367475849758.PDF.exe
3444	InstallUtil.exe
3444	InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	2188	202110207367475849758.PDF.exe
Token: SeDebugPrivilege	3444	InstallUtil.exe

pid	process
3444	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

202110207367475849758.PDF.exe

description	pid	process	target process
PID 2188 wrote to memory of 3444	2188	202110207367475849758.PDF.exe	InstallUtil.exe
PID 2188 wrote to memory of 3444	2188	202110207367475849758.PDF.exe	InstallUtil.exe
PID 2188 wrote to memory of 3444	2188	202110207367475849758.PDF.exe	InstallUtil.exe
PID 2188 wrote to memory of 3444	2188	202110207367475849758.PDF.exe	InstallUtil.exe
PID 2188 wrote to memory of 3444	2188	202110207367475849758.PDF.exe	InstallUtil.exe
PID 2188 wrote to memory of 3444	2188	202110207367475849758.PDF.exe	InstallUtil.exe
PID 2188 wrote to memory of 3444	2188	202110207367475849758.PDF.exe	InstallUtil.exe
PID 2188 wrote to memory of 3444	2188	202110207367475849758.PDF.exe	InstallUtil.exe

outlook_office_path 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\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-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\202110207367475849758.PDF.exe
"C:\Users\Admin\AppData\Local\Temp\202110207367475849758.PDF.exe"
1⤵
- Modifies WinLogon for persistence
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2188

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
2⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:3444

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
MD5
91c9ae9c9a17a9db5e08b120e668c74c

SHA1
50770954c1ceb0bb6f1d5d3f2de2a0a065773723

SHA256
e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

SHA512
ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

Download Submit
memory/2188-119-0x0000000006310000-0x0000000006334000-memory.dmp

Filesize
144KB

Download
memory/2188-115-0x0000000000B20000-0x0000000000B21000-memory.dmp

Filesize
4KB

Download
memory/2188-118-0x0000000006150000-0x0000000006197000-memory.dmp

Filesize
284KB

Download
memory/2188-117-0x0000000005610000-0x0000000005611000-memory.dmp

Filesize
4KB

Download
memory/3444-120-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3444-121-0x000000000043785E-mapping.dmp

Download
memory/3444-126-0x0000000005C10000-0x0000000005C11000-memory.dmp

Filesize
4KB

Download
memory/3444-127-0x00000000058E0000-0x00000000058E1000-memory.dmp

Filesize
4KB

Download
memory/3444-128-0x0000000005710000-0x0000000005C0E000-memory.dmp

Filesize
5.0MB

Download
memory/3444-129-0x0000000005BD0000-0x0000000005BD1000-memory.dmp

Filesize
4KB

Download
memory/3444-130-0x0000000006470000-0x0000000006471000-memory.dmp

Filesize
4KB

Download
memory/3444-131-0x0000000006B40000-0x0000000006B41000-memory.dmp

Filesize
4KB

Download
memory/3444-132-0x0000000006690000-0x0000000006691000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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