agenttesla | ad1a702f17301fff222e1cf0b679e6d3d739954ce98ac0b90a34b8fc83869ca5

Analysis

max time kernel
145s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20220310-en
submitted
27/03/2022, 19:54

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General

Target
PO.exe
Size 538KB
Sample220327-ymjaqagfdp
SHA256 ad1a702f17301fff222e1cf0b679e6d3d739954ce98ac0b90a34b8fc83869ca5
MD5 064515bc5e636cdb899f4246cd682d63
SHA1 57d03a00938cb02979ec9dcd957fbce5d1301a0f
SHA512 07dc7f2a7dacf85f154c05ac5b2bc974be8c494440325179fead41b9ec972d58a38a135c741a6a5c1fd08d4d58b6793ec50872fe97f8f5ee22f0e447c5878a3e
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger spyware stealer suricata trojan

Malware Config

Extracted

Credentials

Protocol
smtp
Host
mail.contrivekota.in
Port
587
Username
[email protected]
Password
Contrive123$

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.contrivekota.in
Port
587
Username
[email protected]
Password
Contrive123$
Email to
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
suricata: ET MALWARE AgentTesla Exfil Via SMTP
suricata: ET MALWARE AgentTesla Exfil Via SMTP
suricata

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Control Panel\International\Geo\Nation	PO.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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe
Key opened	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe
Key opened	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1456 set thread context of 4800	1456	PO.exe	102

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

pid	Process
4736	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1456	PO.exe
4800	PO.exe
4800	PO.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1456	PO.exe
Token: SeDebugPrivilege	4800	PO.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1456 wrote to memory of 4736	1456	PO.exe	100
PID 1456 wrote to memory of 4736	1456	PO.exe	100
PID 1456 wrote to memory of 4736	1456	PO.exe	100
PID 1456 wrote to memory of 4800	1456	PO.exe	102
PID 1456 wrote to memory of 4800	1456	PO.exe	102
PID 1456 wrote to memory of 4800	1456	PO.exe	102
PID 1456 wrote to memory of 4800	1456	PO.exe	102
PID 1456 wrote to memory of 4800	1456	PO.exe	102
PID 1456 wrote to memory of 4800	1456	PO.exe	102
PID 1456 wrote to memory of 4800	1456	PO.exe	102
PID 1456 wrote to memory of 4800	1456	PO.exe	102

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO.exe

C:\Users\Admin\AppData\Local\Temp\PO.exe
"C:\Users\Admin\AppData\Local\Temp\PO.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1456
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\URlbJmxzoTy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2340.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4736
- C:\Users\Admin\AppData\Local\Temp\PO.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4800

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
1⤵
PID:4184

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

PO.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PO.exe.log
Size 1KB
SHA256 c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553
MD5 17573558c4e714f606f997e5157afaac
SHA1 13e16e9415ceef429aaf124139671ebeca09ed23
SHA512 f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc
MD5 SHA1 SHA512

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tmp2340.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp2340.tmp
Size 1KB
SHA256 1619879da2d5784e608b805303ae0679c7cc777592965236eef10323d8afcb22
MD5 a57b15b90fa0bb2de03866be013b1c59
SHA1 d4b483010c13809e9e327b31a9bdc7b2a70029a2
SHA512 98a878752683bc1bd50cff1fbd2a1d35219f8923539b4ab421f369bbe12b994663a6028ccee63a500f35b73c83ab5c102f748d68be7b10d61d710a1614091180
MD5 SHA1 SHA512

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memory/1456-135-0x0000000005350000-0x00000000053EC000-memory.dmp

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memory/1456-136-0x00000000059A0000-0x0000000005F44000-memory.dmp

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memory/1456-137-0x00000000053F0000-0x0000000005482000-memory.dmp

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memory/1456-138-0x0000000005310000-0x000000000531A000-memory.dmp

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memory/1456-139-0x0000000005620000-0x0000000005676000-memory.dmp

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memory/1456-134-0x00000000008E0000-0x000000000096C000-memory.dmp

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memory/4800-143-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/4800-145-0x0000000006370000-0x00000000063D6000-memory.dmp

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memory/4800-146-0x0000000006B50000-0x0000000006BA0000-memory.dmp

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