agenttesla | 2c636f68534e2e5fb4fd146db72dec601db23b478029909b595cffe2e2954fca

Analysis

max time kernel
145s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20230621-en
resource tags

arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
submitted
03/07/2023, 07:29

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General

Target
Purchas Items.exe
Size 598KB
Sample230703-ja882sfd76
SHA256 942181835b4ba27f416333219bfc5b78aa793be8d05edb5c6a4c78a60e00a7f9
MD5 519db082038048a6bf01e80db413290f
SHA1 fadb77997461ad629564dac8877a7608cb349937
SHA512 1200f8d9b9ca0798d2e11816acc69df1e1206529270633f80f805f54a680b57eed90e0ce9486aa0ba8e21c271fa24da68b4c997b3f3f108d9117b4100e5bf75b
SSDEEP 6144:Q/t42ZcaUbrayUebGEITZDtI20Tm0zeGP/IuTa9YIdwV9ne5jIab9WKQkIPOTnnS:SvcdbrUebGPzZ0TOSNSSV2sAQjOTnnp
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.quimicosolmeca.com
Port
587
Username
[email protected]
Password
$#QOL05052$Cc
Email to
[email protected]

Signatures

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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchas Items.exe
Key opened	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchas Items.exe
Key opened	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchas Items.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
46	api.ipify.org
47	api.ipify.org

Drops file in System32 directory 8 IoCs

description	ioc	Process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{5E5083EC-5D3F-4630-83FF-365858C5C894}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{FF3C8792-AF57-431F-B44D-162BF2E67364}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{6282F90F-9B2B-41B8-A037-77D82966B9BC}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{D9E16C80-DC26-4B48-A286-1ADFE2CA13BB}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{54050916-8628-429B-AD88-B1FBD902350B}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{A34B73F8-59C2-4693-88B3-8121ED74F348}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{7EA8C9C9-AF28-45D3-8940-CE9C46A35CED}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{CE86A092-D6D8-4DBC-9A56-EA901B54A44F}.catalogItem	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4564 set thread context of 1764	4564	Purchas Items.exe	96

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1764	Purchas Items.exe
1764	Purchas Items.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1764	Purchas Items.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1764	Purchas Items.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4564 wrote to memory of 1764	4564	Purchas Items.exe	96
PID 4564 wrote to memory of 1764	4564	Purchas Items.exe	96
PID 4564 wrote to memory of 1764	4564	Purchas Items.exe	96
PID 4564 wrote to memory of 1764	4564	Purchas Items.exe	96
PID 4564 wrote to memory of 1764	4564	Purchas Items.exe	96
PID 4564 wrote to memory of 1764	4564	Purchas Items.exe	96
PID 4564 wrote to memory of 1764	4564	Purchas Items.exe	96
PID 4564 wrote to memory of 1764	4564	Purchas Items.exe	96

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchas Items.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Purchas Items.exe

C:\Users\Admin\AppData\Local\Temp\Purchas Items.exe
"C:\Users\Admin\AppData\Local\Temp\Purchas Items.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4564
- C:\Users\Admin\AppData\Local\Temp\Purchas Items.exe
  "C:\Users\Admin\AppData\Local\Temp\Purchas Items.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:1764

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
PID:4596

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

Purchas Items.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Purchas Items.exe.log
Size 1KB
SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
MD5 8ec831f3e3a3f77e4a7b9cd32b48384c
SHA1 d83f09fd87c5bd86e045873c231c14836e76a05c
SHA512 26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
MD5 SHA1 SHA512

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memory/1764-140-0x0000000000400000-0x0000000000430000-memory.dmp

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memory/1764-155-0x00000000052D0000-0x00000000052E0000-memory.dmp

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memory/1764-146-0x0000000006B50000-0x0000000006D12000-memory.dmp

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memory/1764-145-0x0000000006930000-0x0000000006980000-memory.dmp

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memory/1764-144-0x00000000052D0000-0x00000000052E0000-memory.dmp

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memory/1764-143-0x0000000005020000-0x0000000005086000-memory.dmp

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memory/4564-136-0x00000000058D0000-0x00000000058DA000-memory.dmp

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memory/4564-139-0x0000000005840000-0x0000000005850000-memory.dmp

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memory/4564-138-0x0000000005840000-0x0000000005850000-memory.dmp

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memory/4564-137-0x0000000005B90000-0x0000000005C2C000-memory.dmp

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memory/4564-133-0x0000000000E90000-0x0000000000F2C000-memory.dmp

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memory/4564-135-0x0000000005940000-0x00000000059D2000-memory.dmp

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memory/4564-134-0x0000000005EF0000-0x0000000006494000-memory.dmp

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