agenttesla | abae27699e69436e4978e0575ea5bb622dd1d267ed3d3db9ae6992d0a6d3dd18

General

Target

5c18e5b749ca9dea6defabcfb0db601f.exe
Size

1.4MB
MD5

5c18e5b749ca9dea6defabcfb0db601f
SHA1

d622882a7d47868c7fe2500a289ae129530a8f2e
SHA256

abae27699e69436e4978e0575ea5bb622dd1d267ed3d3db9ae6992d0a6d3dd18
SHA512

324cc21783a0773c62935dce226c5fa31cf70129b27164735a1b5909f444c7debaac19eb70a9b9a0f8a562df075ce02c11dac7bcd690ea770b04f30db3fdccbc
SSDEEP

24576:495ooKw0UYoVJ5jbUVlAUGwNbwPWnuCXnw8I6TvvtBJ+d9pu80roJvKeSWta3t4v:2WoKw0UYiJ5jbo5GqbwPWnuCXnbRTHtW

Score

10^/10

agenttesla collection keylogger spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.alfafoodservices.com
Port:
587
Username:
[email protected]
Password:
gwagon2014

Signatures

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

AgentTesla payload 3 IoCs

resource	yara_rule
behavioral2/files/0x000600000002322b-3.dat	family_agenttesla
behavioral2/files/0x000600000002322b-4.dat	family_agenttesla
behavioral2/memory/2960-8-0x0000000000490000-0x00000000004E0000-memory.dmp	family_agenttesla

Executes dropped EXE 1 IoCs

pid	Process
2960	test.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
T1552.001
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
T1552.001
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
T1552.001

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4500-0-0x0000000000400000-0x00000000006A3000-memory.dmp	upx
behavioral2/memory/4500-6-0x0000000000400000-0x00000000006A3000-memory.dmp	upx

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe
Key opened	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe
Key opened	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2960	test.exe
2960	test.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2960	test.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2960	test.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4500 wrote to memory of 5084	4500	5c18e5b749ca9dea6defabcfb0db601f.exe	29
PID 4500 wrote to memory of 5084	4500	5c18e5b749ca9dea6defabcfb0db601f.exe	29
PID 4500 wrote to memory of 5084	4500	5c18e5b749ca9dea6defabcfb0db601f.exe	29
PID 5084 wrote to memory of 2960	5084	cmd.exe	30
PID 5084 wrote to memory of 2960	5084	cmd.exe	30
PID 5084 wrote to memory of 2960	5084	cmd.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe

C:\Users\Admin\AppData\Local\Temp\5c18e5b749ca9dea6defabcfb0db601f.exe
"C:\Users\Admin\AppData\Local\Temp\5c18e5b749ca9dea6defabcfb0db601f.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4500
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c test.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5084
- - C:\Users\Admin\AppData\Local\Temp\test.exe
    test.exe
    3⤵
    - 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:2960

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\test.exe

Filesize
74KB

MD5
ea4d9c545505d3f6450626451b34c796

SHA1
e4da0ca1385f0a339f9438440152168f893d035b

SHA256
24d279579f3ee7a988def3996ff38c50ad4f446cb5508ebd9dd61efc4efec95e

SHA512
57610cc63a5b4475ee604de39cf40ee085f6d8d02d58987a78e3042c9a0fd984d7a94472d3cfb03edf252db0b65b4c52644a90e9748c62a5ac6301bcca114037

Download Submit
C:\Users\Admin\AppData\Local\Temp\test.exe

Filesize
207KB

MD5
639b884415a7b195282495095848518b

SHA1
633582f23e913bdb5dd38b43762768e55bf6bb67

SHA256
2715082d1367237ccb73ebfaf1cf05c1bb5adf8b18074b93f0d75fe3779cad3b

SHA512
d8db8bb75593faaf43f3f21a875488baf1ea321f848484aceba2220fe116a3d2721a1ac1ceced00b529b41e38fae2bd506b09086f08462c0808b64879b1c2111

Download Submit
memory/2960-16-0x0000000006460000-0x00000000064B0000-memory.dmp

Filesize
320KB

Download
memory/2960-13-0x00000000050A0000-0x000000000513C000-memory.dmp

Filesize
624KB

Download
memory/2960-30-0x0000000005090000-0x00000000050A0000-memory.dmp

Filesize
64KB

Download
memory/2960-8-0x0000000000490000-0x00000000004E0000-memory.dmp

Filesize
320KB

Download
memory/2960-9-0x0000000005720000-0x0000000005CC4000-memory.dmp

Filesize
5.6MB

Download
memory/2960-12-0x0000000004F40000-0x0000000004FD2000-memory.dmp

Filesize
584KB

Download
memory/2960-11-0x0000000005090000-0x00000000050A0000-memory.dmp

Filesize
64KB

Download
memory/2960-5-0x00000000747F0000-0x0000000074FA0000-memory.dmp

Filesize
7.7MB

Download
memory/2960-14-0x0000000005030000-0x0000000005048000-memory.dmp

Filesize
96KB

Download
memory/2960-15-0x0000000005CD0000-0x0000000005D36000-memory.dmp

Filesize
408KB

Download
memory/2960-28-0x0000000005090000-0x00000000050A0000-memory.dmp

Filesize
64KB

Download
memory/2960-17-0x00000000747F0000-0x0000000074FA0000-memory.dmp

Filesize
7.7MB

Download
memory/2960-23-0x0000000006A70000-0x0000000006A7A000-memory.dmp

Filesize
40KB

Download
memory/2960-25-0x0000000005090000-0x00000000050A0000-memory.dmp

Filesize
64KB

Download
memory/4500-0-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/4500-6-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download

Analysis

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