agenttesla | 4fe4931ff2df16ba3943c1380dd21e9c32ce29a708068b3190c10de20b5a1d99

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28-03-2024 20:03

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General

Target

PO # 11002021.exe
Size

700KB
MD5

e9901eec1af843e9546a659866270f6e
SHA1

57b6cccf4084b0a4aff6d236eb6a30df4fe8029f
SHA256

20307784e2521eb5d902498d8c893d7c884e518c38d8659780019ad08fbd341b
SHA512

b98b4937c9c94ebbe91f14e758a7b43d7999047c30840ca802ae60ec18fad4479c9bc21a1a375280119969ebc229065a85f17052804aff96b1246dbacd21959e
SSDEEP

12288:dQh08OGQuZLvqJFTPH0nzwViuZhec8Ev9Qv/J7xlgQVXdTK0Yc3/jf/AzcIiOZpw:xnGQYTqrozwVlecivPOYXdTKBcPjfIg

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.aldhiyafainteriors.com
Port:
587
Username:
[email protected]
Password:
dhiyafa@987

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/4608-16-0x0000000000400000-0x000000000043C000-memory.dmp family_agenttesla
Drops file in Drivers directory 1 IoCs

Processes:

PO # 11002021.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts PO # 11002021.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:

PO # 11002021.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation PO # 11002021.exe
Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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

resource	yara_rule
behavioral2/memory/4608-16-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	PO # 11002021.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	PO # 11002021.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

PO # 11002021.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO # 11002021.exe
Key opened	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO # 11002021.exe
Key opened	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO # 11002021.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

PO # 11002021.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DnDcR = "C:\\Users\\Admin\\AppData\\Roaming\\DnDcR\\DnDcR.exe"	PO # 11002021.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

PO # 11002021.exe

description pid process target process

PID 4760 set thread context of 4608 4760 PO # 11002021.exe PO # 11002021.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

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/Job
T1053

Processes:

schtasks.exe

pid process

232 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

PO # 11002021.exePO # 11002021.exe

pid process

4760 PO # 11002021.exe
4608 PO # 11002021.exe
4608 PO # 11002021.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PO # 11002021.exePO # 11002021.exe

description pid process

Token: SeDebugPrivilege 4760 PO # 11002021.exe
Token: SeDebugPrivilege 4608 PO # 11002021.exe

description	pid	process	target process
PID 4760 set thread context of 4608	4760	PO # 11002021.exe	PO # 11002021.exe

pid	process
232	schtasks.exe

pid	process
4760	PO # 11002021.exe
4608	PO # 11002021.exe
4608	PO # 11002021.exe

description	pid	process
Token: SeDebugPrivilege	4760	PO # 11002021.exe
Token: SeDebugPrivilege	4608	PO # 11002021.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

PO # 11002021.exe

description	pid	process	target process
PID 4760 wrote to memory of 232	4760	PO # 11002021.exe	schtasks.exe
PID 4760 wrote to memory of 232	4760	PO # 11002021.exe	schtasks.exe
PID 4760 wrote to memory of 232	4760	PO # 11002021.exe	schtasks.exe
PID 4760 wrote to memory of 4608	4760	PO # 11002021.exe	PO # 11002021.exe
PID 4760 wrote to memory of 4608	4760	PO # 11002021.exe	PO # 11002021.exe
PID 4760 wrote to memory of 4608	4760	PO # 11002021.exe	PO # 11002021.exe
PID 4760 wrote to memory of 4608	4760	PO # 11002021.exe	PO # 11002021.exe
PID 4760 wrote to memory of 4608	4760	PO # 11002021.exe	PO # 11002021.exe
PID 4760 wrote to memory of 4608	4760	PO # 11002021.exe	PO # 11002021.exe
PID 4760 wrote to memory of 4608	4760	PO # 11002021.exe	PO # 11002021.exe
PID 4760 wrote to memory of 4608	4760	PO # 11002021.exe	PO # 11002021.exe

outlook_office_path 1 IoCs

Processes:

PO # 11002021.exe

description ioc process

Key opened \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 PO # 11002021.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO # 11002021.exe

outlook_win_path 1 IoCs

Processes:

PO # 11002021.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO # 11002021.exe

C:\Users\Admin\AppData\Local\Temp\PO # 11002021.exe
"C:\Users\Admin\AppData\Local\Temp\PO # 11002021.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4760

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ucluvjDNoCBwJD" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB100.tmp"
2⤵
- Creates scheduled task(s)
PID:232

C:\Users\Admin\AppData\Local\Temp\PO # 11002021.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4608

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PO # 11002021.exe.log
Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB100.tmp
Filesize
1KB

MD5
99d51bc59495300b5d5916b4d6abfe1a

SHA1
d51ae656db9ca09554efee8683c282e8ab49c521

SHA256
fa677fe4b11f73a3b4d80dd62b291efd8301e61c24d4ed52ee8388f5c4df4953

SHA512
7c9cd0d41258d33e895abd2b07cc67ca548453657a8b4b58bf97c4bb6c63ab2de7a5bfaff11131f328962b3f5cda2e337e4f8ee2ec0eb9c71ee87f4329b5e739

Download Submit
memory/4608-30-0x0000000005800000-0x0000000005810000-memory.dmp

Filesize
64KB

Download
memory/4608-29-0x0000000005800000-0x0000000005810000-memory.dmp

Filesize
64KB

Download
memory/4608-28-0x00000000054A0000-0x00000000054F0000-memory.dmp

Filesize
320KB

Download
memory/4608-26-0x0000000005800000-0x0000000005810000-memory.dmp

Filesize
64KB

Download
memory/4608-25-0x0000000075320000-0x0000000075AD0000-memory.dmp

Filesize
7.7MB

Download
memory/4608-23-0x0000000006440000-0x00000000064A6000-memory.dmp

Filesize
408KB

Download
memory/4608-22-0x00000000063B0000-0x00000000063C8000-memory.dmp

Filesize
96KB

Download
memory/4608-21-0x0000000005800000-0x0000000005810000-memory.dmp

Filesize
64KB

Download
memory/4608-20-0x0000000075320000-0x0000000075AD0000-memory.dmp

Filesize
7.7MB

Download
memory/4608-16-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4760-6-0x0000000005030000-0x000000000503A000-memory.dmp

Filesize
40KB

Download
memory/4760-7-0x0000000005250000-0x00000000052A6000-memory.dmp

Filesize
344KB

Download
memory/4760-11-0x00000000064D0000-0x000000000654C000-memory.dmp

Filesize
496KB

Download
memory/4760-10-0x0000000004F00000-0x0000000004F10000-memory.dmp

Filesize
64KB

Download
memory/4760-19-0x0000000075320000-0x0000000075AD0000-memory.dmp

Filesize
7.7MB

Download
memory/4760-9-0x0000000075320000-0x0000000075AD0000-memory.dmp

Filesize
7.7MB

Download
memory/4760-8-0x0000000007C00000-0x0000000007C14000-memory.dmp

Filesize
80KB

Download
memory/4760-12-0x000000000A160000-0x000000000A19C000-memory.dmp

Filesize
240KB

Download
memory/4760-0-0x00000000004D0000-0x0000000000586000-memory.dmp

Filesize
728KB

Download
memory/4760-5-0x0000000004F00000-0x0000000004F10000-memory.dmp

Filesize
64KB

Download
memory/4760-4-0x0000000005060000-0x00000000050F2000-memory.dmp

Filesize
584KB

Download
memory/4760-3-0x0000000005570000-0x0000000005B14000-memory.dmp

Filesize
5.6MB

Download
memory/4760-2-0x0000000004F20000-0x0000000004FBC000-memory.dmp

Filesize
624KB

Download
memory/4760-1-0x0000000075320000-0x0000000075AD0000-memory.dmp

Filesize
7.7MB

Download