agenttesla | f0ecbc7b267751a43f7db46ab1faa1fc29c834b2fd5224ba202f645afdeb3c46

General

Target

Invitation to Bid Document.exe
Size

587KB
MD5

56c28a5e5db8741f23931e28b8a27a7b
SHA1

355ede2c4f0cc58d4767ca3878b9ce52c3b46fa3
SHA256

83eff9827c853adff940f77bff9e516f0ef9e5865f04d0e02572ee8b0051b720
SHA512

421aa9339e69aa54eabeef9aad66f0462fc0059f06c694d76cef6685b242ab834e15161319f4c5f0c702deb2981987f806fd5d5a35b0b7158169539d98b9fccb

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.greenhornechem.com
Port:
587
Username:
[email protected]
Password:
^fpNyGmQa2

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/860-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/860-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/860-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/860-66-0x000000000044703E-mapping.dmp	family_agenttesla
behavioral1/memory/860-68-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/860-70-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

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:

Invitation to Bid Document.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

Invitation to Bid Document.exe

description pid process target process

PID 1684 set thread context of 860 1684 Invitation to Bid Document.exe Invitation to Bid Document.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

1748 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Invitation to Bid Document.exe

pid process

860 Invitation to Bid Document.exe
860 Invitation to Bid Document.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Invitation to Bid Document.exe

description pid process

Token: SeDebugPrivilege 860 Invitation to Bid Document.exe

description	pid	process	target process
PID 1684 set thread context of 860	1684	Invitation to Bid Document.exe	Invitation to Bid Document.exe

pid	process
1748	schtasks.exe

pid	process
860	Invitation to Bid Document.exe
860	Invitation to Bid Document.exe

description	pid	process
Token: SeDebugPrivilege	860	Invitation to Bid Document.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Invitation to Bid Document.exe

description	pid	process	target process
PID 1684 wrote to memory of 1748	1684	Invitation to Bid Document.exe	schtasks.exe
PID 1684 wrote to memory of 1748	1684	Invitation to Bid Document.exe	schtasks.exe
PID 1684 wrote to memory of 1748	1684	Invitation to Bid Document.exe	schtasks.exe
PID 1684 wrote to memory of 1748	1684	Invitation to Bid Document.exe	schtasks.exe
PID 1684 wrote to memory of 860	1684	Invitation to Bid Document.exe	Invitation to Bid Document.exe
PID 1684 wrote to memory of 860	1684	Invitation to Bid Document.exe	Invitation to Bid Document.exe
PID 1684 wrote to memory of 860	1684	Invitation to Bid Document.exe	Invitation to Bid Document.exe
PID 1684 wrote to memory of 860	1684	Invitation to Bid Document.exe	Invitation to Bid Document.exe
PID 1684 wrote to memory of 860	1684	Invitation to Bid Document.exe	Invitation to Bid Document.exe
PID 1684 wrote to memory of 860	1684	Invitation to Bid Document.exe	Invitation to Bid Document.exe
PID 1684 wrote to memory of 860	1684	Invitation to Bid Document.exe	Invitation to Bid Document.exe
PID 1684 wrote to memory of 860	1684	Invitation to Bid Document.exe	Invitation to Bid Document.exe
PID 1684 wrote to memory of 860	1684	Invitation to Bid Document.exe	Invitation to Bid Document.exe

outlook_office_path 1 IoCs

Processes:

Invitation to Bid Document.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	Invitation to Bid Document.exe

outlook_win_path 1 IoCs

Processes:

Invitation to Bid Document.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	Invitation to Bid Document.exe

C:\Users\Admin\AppData\Local\Temp\Invitation to Bid Document.exe
"C:\Users\Admin\AppData\Local\Temp\Invitation to Bid Document.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1684

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qvwvvTwinZttPS" /XML "C:\Users\Admin\AppData\Local\Temp\tmpACB4.tmp"
2⤵
- Creates scheduled task(s)
PID:1748

C:\Users\Admin\AppData\Local\Temp\Invitation to Bid Document.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:860

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

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\Temp\tmpACB4.tmp
Filesize
1KB

MD5
59c0f39d98dfb6e23cdb73b02f87ea14

SHA1
6c46be32ed75335de820793b7f62d10fb4123608

SHA256
36344f1c946d85e3b69746531bfded9f7d24e9180993c0b7bb3ad7edb6996790

SHA512
8f116606f149c3517dd0c8c421128d7167416555d07345dca1c3b41af559e2a0b05632535d2b229621e5ab4f982ecd14b4310d8c32002a91f61e029c01dcfce2

Download Submit
memory/860-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/860-60-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/860-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/860-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/860-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/860-66-0x000000000044703E-mapping.dmp

Download
memory/860-68-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/860-70-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1684-56-0x0000000000710000-0x0000000000764000-memory.dmp

Filesize
336KB

Download
memory/1684-57-0x00000000752D1000-0x00000000752D3000-memory.dmp

Filesize
8KB

Download
memory/1684-55-0x00000000001F0000-0x00000000001F8000-memory.dmp

Filesize
32KB

Download
memory/1684-54-0x00000000013B0000-0x000000000144A000-memory.dmp

Filesize
616KB

Download
memory/1748-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads