agenttesla | 6e02765e6ad99f87555aa34f4c86e840c157ba748016bd1b721dccfeeaf06cca

Analysis

max time kernel
170s
max time network
188s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
21-05-2022 00:21

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General

Target

0LbmEpBJoUrZ3mY.exe
Size

584KB
MD5

499ddbaac177da774914321b5ab830b1
SHA1

de1a46c7a29401af77358af58ac969d246f3b929
SHA256

a6ab7254afb3d90d19538adcbf41e70460c06e11bb51778d604f0b9531451254
SHA512

e79cf22c00446f5ff3733b9fe12c551806e758d66511fe3c0ab27589b2504b13f36f1b1fbc65a0ac425ec901a5dcc2ba2109be12306e8ce2112995b6a97998b0

Score

10^/10

agenttesla collection evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.dogaseed.com
Port:
587
Username:
[email protected]
Password:
Doga_2017*

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/3372-139-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

0LbmEpBJoUrZ3mY.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	0LbmEpBJoUrZ3mY.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	0LbmEpBJoUrZ3mY.exe

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:

0LbmEpBJoUrZ3mY.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	0LbmEpBJoUrZ3mY.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:

0LbmEpBJoUrZ3mY.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0LbmEpBJoUrZ3mY.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0LbmEpBJoUrZ3mY.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0LbmEpBJoUrZ3mY.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

0LbmEpBJoUrZ3mY.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CFMBUF = "C:\\Users\\Admin\\AppData\\Roaming\\CFMBUF\\CFMBUF.exe"	0LbmEpBJoUrZ3mY.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

0LbmEpBJoUrZ3mY.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	0LbmEpBJoUrZ3mY.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	0LbmEpBJoUrZ3mY.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

0LbmEpBJoUrZ3mY.exe

description pid process target process

PID 3784 set thread context of 3372 3784 0LbmEpBJoUrZ3mY.exe 0LbmEpBJoUrZ3mY.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

1524 schtasks.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

0LbmEpBJoUrZ3mY.exe0LbmEpBJoUrZ3mY.exe

pid process

3784 0LbmEpBJoUrZ3mY.exe
3784 0LbmEpBJoUrZ3mY.exe
3784 0LbmEpBJoUrZ3mY.exe
3784 0LbmEpBJoUrZ3mY.exe
3372 0LbmEpBJoUrZ3mY.exe
3372 0LbmEpBJoUrZ3mY.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

0LbmEpBJoUrZ3mY.exe0LbmEpBJoUrZ3mY.exe

description pid process

Token: SeDebugPrivilege 3784 0LbmEpBJoUrZ3mY.exe
Token: SeDebugPrivilege 3372 0LbmEpBJoUrZ3mY.exe

description	pid	process	target process
PID 3784 set thread context of 3372	3784	0LbmEpBJoUrZ3mY.exe	0LbmEpBJoUrZ3mY.exe

pid	process
1524	schtasks.exe

pid	process
3784	0LbmEpBJoUrZ3mY.exe
3784	0LbmEpBJoUrZ3mY.exe
3784	0LbmEpBJoUrZ3mY.exe
3784	0LbmEpBJoUrZ3mY.exe
3372	0LbmEpBJoUrZ3mY.exe
3372	0LbmEpBJoUrZ3mY.exe

description	pid	process
Token: SeDebugPrivilege	3784	0LbmEpBJoUrZ3mY.exe
Token: SeDebugPrivilege	3372	0LbmEpBJoUrZ3mY.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

0LbmEpBJoUrZ3mY.exe0LbmEpBJoUrZ3mY.exe

description	pid	process	target process
PID 3784 wrote to memory of 1524	3784	0LbmEpBJoUrZ3mY.exe	schtasks.exe
PID 3784 wrote to memory of 1524	3784	0LbmEpBJoUrZ3mY.exe	schtasks.exe
PID 3784 wrote to memory of 1524	3784	0LbmEpBJoUrZ3mY.exe	schtasks.exe
PID 3784 wrote to memory of 3372	3784	0LbmEpBJoUrZ3mY.exe	0LbmEpBJoUrZ3mY.exe
PID 3784 wrote to memory of 3372	3784	0LbmEpBJoUrZ3mY.exe	0LbmEpBJoUrZ3mY.exe
PID 3784 wrote to memory of 3372	3784	0LbmEpBJoUrZ3mY.exe	0LbmEpBJoUrZ3mY.exe
PID 3784 wrote to memory of 3372	3784	0LbmEpBJoUrZ3mY.exe	0LbmEpBJoUrZ3mY.exe
PID 3784 wrote to memory of 3372	3784	0LbmEpBJoUrZ3mY.exe	0LbmEpBJoUrZ3mY.exe
PID 3784 wrote to memory of 3372	3784	0LbmEpBJoUrZ3mY.exe	0LbmEpBJoUrZ3mY.exe
PID 3784 wrote to memory of 3372	3784	0LbmEpBJoUrZ3mY.exe	0LbmEpBJoUrZ3mY.exe
PID 3784 wrote to memory of 3372	3784	0LbmEpBJoUrZ3mY.exe	0LbmEpBJoUrZ3mY.exe
PID 3372 wrote to memory of 2208	3372	0LbmEpBJoUrZ3mY.exe	netsh.exe
PID 3372 wrote to memory of 2208	3372	0LbmEpBJoUrZ3mY.exe	netsh.exe
PID 3372 wrote to memory of 2208	3372	0LbmEpBJoUrZ3mY.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

0LbmEpBJoUrZ3mY.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0LbmEpBJoUrZ3mY.exe

outlook_win_path 1 IoCs

Processes:

0LbmEpBJoUrZ3mY.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0LbmEpBJoUrZ3mY.exe

C:\Users\Admin\AppData\Local\Temp\0LbmEpBJoUrZ3mY.exe
"C:\Users\Admin\AppData\Local\Temp\0LbmEpBJoUrZ3mY.exe"
1⤵
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3784

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sBGHQqVVPVaw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp40DC.tmp"
2⤵
- Creates scheduled task(s)
PID:1524

C:\Users\Admin\AppData\Local\Temp\0LbmEpBJoUrZ3mY.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:3372

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:2208

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Peripheral Device Discovery

T1120

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\0LbmEpBJoUrZ3mY.exe.log
Filesize
1KB

MD5
e08f822522c617a40840c62e4b0fb45e

SHA1
ae516dca4da5234be6676d3f234c19ec55725be7

SHA256
bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7

SHA512
894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp40DC.tmp
Filesize
1KB

MD5
a8fe527fe766e8744c109b375e600824

SHA1
87a840f7f9276ed92eeb81d6a66a055fba148d2c

SHA256
ccb3cf2bc82c4aae59554142e70193f9264d1683dd1319a1ca3d17f9279eeb11

SHA512
8e49ff35f51c1bf3cff4d6e984ebcda248647baf30bf05764bdd3131656f6d0f841b2127deff67a46380960af68847046b385c784bbe0292e7cc3e210d83ea62

Download Submit
memory/1524-136-0x0000000000000000-mapping.dmp

Download
memory/2208-142-0x0000000000000000-mapping.dmp

Download
memory/3372-139-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/3372-138-0x0000000000000000-mapping.dmp

Download
memory/3372-141-0x00000000067D0000-0x0000000006820000-memory.dmp

Filesize
320KB

Download
memory/3784-135-0x000000000DD20000-0x000000000DD86000-memory.dmp

Filesize
408KB

Download
memory/3784-134-0x0000000007F90000-0x000000000802C000-memory.dmp

Filesize
624KB

Download
memory/3784-133-0x0000000005240000-0x000000000524A000-memory.dmp

Filesize
40KB

Download
memory/3784-130-0x0000000000940000-0x00000000009D8000-memory.dmp

Filesize
608KB

Download
memory/3784-132-0x0000000005260000-0x00000000052F2000-memory.dmp

Filesize
584KB

Download
memory/3784-131-0x0000000005770000-0x0000000005D14000-memory.dmp

Filesize
5.6MB

Download