agenttesla | fe07a568a1b28b5896f53ed9ef1be70fbda09f99f176c34e7e3f81e6ebfed81c

General

Target

Universal170920.exe
Size

492KB
MD5

1029af374ae0accd05afd9874ac61f3f
SHA1

3a37c6fe8e5120e828b6b21ccd8c440f332e86dc
SHA256

68624d31f561c1e2b735c18ecef36cc6c648803a19b34d1d75bf5815f3037675
SHA512

4b40af392516f84528fb7617f90457969889cfa2d9e2583b3e92ba9ea914e891fa2188bb1ec25ae70dc43eefe85020754ec4c6182de06209f1f9d11de159486b

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.transfastc.com
Port:
587
Username:
[email protected]
Password:
Godalone147

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/4604-139-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Universal170920.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	Universal170920.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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Universal170920.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Universal170920.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Universal170920.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Universal170920.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Universal170920.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe"	Universal170920.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Universal170920.exe

description pid process target process

PID 2076 set thread context of 4604 2076 Universal170920.exe Universal170920.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

3696 schtasks.exe

description	pid	process	target process
PID 2076 set thread context of 4604	2076	Universal170920.exe	Universal170920.exe

pid	process
3696	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

Universal170920.exeUniversal170920.exe

pid	process
2076	Universal170920.exe
2076	Universal170920.exe
2076	Universal170920.exe
2076	Universal170920.exe
2076	Universal170920.exe
4604	Universal170920.exe
4604	Universal170920.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

Universal170920.exe

pid process

4604 Universal170920.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Universal170920.exeUniversal170920.exe

description pid process

Token: SeDebugPrivilege 2076 Universal170920.exe
Token: SeDebugPrivilege 4604 Universal170920.exe

pid	process
4604	Universal170920.exe

description	pid	process
Token: SeDebugPrivilege	2076	Universal170920.exe
Token: SeDebugPrivilege	4604	Universal170920.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

Universal170920.exe

description	pid	process	target process
PID 2076 wrote to memory of 3696	2076	Universal170920.exe	schtasks.exe
PID 2076 wrote to memory of 3696	2076	Universal170920.exe	schtasks.exe
PID 2076 wrote to memory of 3696	2076	Universal170920.exe	schtasks.exe
PID 2076 wrote to memory of 1436	2076	Universal170920.exe	Universal170920.exe
PID 2076 wrote to memory of 1436	2076	Universal170920.exe	Universal170920.exe
PID 2076 wrote to memory of 1436	2076	Universal170920.exe	Universal170920.exe
PID 2076 wrote to memory of 4604	2076	Universal170920.exe	Universal170920.exe
PID 2076 wrote to memory of 4604	2076	Universal170920.exe	Universal170920.exe
PID 2076 wrote to memory of 4604	2076	Universal170920.exe	Universal170920.exe
PID 2076 wrote to memory of 4604	2076	Universal170920.exe	Universal170920.exe
PID 2076 wrote to memory of 4604	2076	Universal170920.exe	Universal170920.exe
PID 2076 wrote to memory of 4604	2076	Universal170920.exe	Universal170920.exe
PID 2076 wrote to memory of 4604	2076	Universal170920.exe	Universal170920.exe
PID 2076 wrote to memory of 4604	2076	Universal170920.exe	Universal170920.exe

outlook_office_path 1 IoCs

Processes:

Universal170920.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Universal170920.exe

outlook_win_path 1 IoCs

Processes:

Universal170920.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Universal170920.exe

C:\Users\Admin\AppData\Local\Temp\Universal170920.exe
"C:\Users\Admin\AppData\Local\Temp\Universal170920.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2076

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tgPdWfy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2480.tmp"
2⤵
- Creates scheduled task(s)
PID:3696

C:\Users\Admin\AppData\Local\Temp\Universal170920.exe
"{path}"
2⤵
PID:1436

C:\Users\Admin\AppData\Local\Temp\Universal170920.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4604

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Universal170920.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp2480.tmp

Filesize
1KB

MD5
1a7ddd1a672d040b54bb3a255cb7fbb5

SHA1
327a672101791aa913f9ce1b696b04a34d55eae8

SHA256
9dae2b3dfef4ae6129af0c5d5dbdea4a927ba244400881732b3c68a282e288b4

SHA512
8a6790c83f850f1347fa357afc688562921e2d46b931ff624eec9752b4291935acad00d901a8ef1913ccea221af50ed1ba55cf4b5b0b0d881451813fdb5c0be0

Download Submit
memory/1436-137-0x0000000000000000-mapping.dmp

Download
memory/2076-133-0x0000000007250000-0x000000000725A000-memory.dmp

Filesize
40KB

Download
memory/2076-134-0x00000000073F0000-0x000000000748C000-memory.dmp

Filesize
624KB

Download
memory/2076-130-0x00000000001B0000-0x0000000000232000-memory.dmp

Filesize
520KB

Download
memory/2076-132-0x00000000070C0000-0x0000000007152000-memory.dmp

Filesize
584KB

Download
memory/2076-131-0x0000000007590000-0x0000000007B34000-memory.dmp

Filesize
5.6MB

Download
memory/3696-135-0x0000000000000000-mapping.dmp

Download
memory/4604-138-0x0000000000000000-mapping.dmp

Download
memory/4604-139-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4604-141-0x0000000006520000-0x0000000006586000-memory.dmp

Filesize
408KB

Download
memory/4604-142-0x0000000006C50000-0x0000000006CA0000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads