agenttesla | 83d7f0bdaaed88575f5da5ba200812740e2485a89296ff0ca62d361af64e0828

General

Target

Scan docs. pdf...................exe
Size

395KB
MD5

1be69ae48470bc61f9d9a3dadac1332b
SHA1

70fd3849d42ea40e4df52a4f388abfd099d8d892
SHA256

43503c2141f4ee3c30d73dc4cec26f079074c25cd4487ce9de32b9f36c73a871
SHA512

5d9bb581ec611702edf57317877cc15d60a9b096309b7a10b8bc1ff8c057d0dc7519b63b00e24253062ec6d16047c8220485f886a653dea97933dda47cd38c2e
SSDEEP

6144:j682Y/iAwiLUMmYHCpjibNHqqv//EnbRXPtv167ygKbJRgF+UyEVUK+RuLINk:jhKAoM5HhAqvYbHt67ygKbJP8UUM

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.nicedoc.biz
Port:
587
Username:
[email protected]
Password:
simple2626

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/1848-18-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

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-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation	Scan docs. pdf...................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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan docs. pdf...................exe
Key opened	\REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan docs. pdf...................exe
Key opened	\REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan docs. pdf...................exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4592 set thread context of 1848	4592	Scan docs. pdf...................exe	98

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

pid	Process
3120	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4592	Scan docs. pdf...................exe
4592	Scan docs. pdf...................exe
4592	Scan docs. pdf...................exe
4592	Scan docs. pdf...................exe
4592	Scan docs. pdf...................exe
4592	Scan docs. pdf...................exe
4592	Scan docs. pdf...................exe
1848	Scan docs. pdf...................exe
1848	Scan docs. pdf...................exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4592	Scan docs. pdf...................exe
Token: SeDebugPrivilege	1848	Scan docs. pdf...................exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4592	Scan docs. pdf...................exe
4592	Scan docs. pdf...................exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4592 wrote to memory of 3120	4592	Scan docs. pdf...................exe	96
PID 4592 wrote to memory of 3120	4592	Scan docs. pdf...................exe	96
PID 4592 wrote to memory of 3120	4592	Scan docs. pdf...................exe	96
PID 4592 wrote to memory of 1848	4592	Scan docs. pdf...................exe	98
PID 4592 wrote to memory of 1848	4592	Scan docs. pdf...................exe	98
PID 4592 wrote to memory of 1848	4592	Scan docs. pdf...................exe	98
PID 4592 wrote to memory of 1848	4592	Scan docs. pdf...................exe	98
PID 4592 wrote to memory of 1848	4592	Scan docs. pdf...................exe	98
PID 4592 wrote to memory of 1848	4592	Scan docs. pdf...................exe	98
PID 4592 wrote to memory of 1848	4592	Scan docs. pdf...................exe	98
PID 4592 wrote to memory of 1848	4592	Scan docs. pdf...................exe	98

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan docs. pdf...................exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Scan docs. pdf...................exe

C:\Users\Admin\AppData\Local\Temp\Scan docs. pdf...................exe
"C:\Users\Admin\AppData\Local\Temp\Scan docs. pdf...................exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4592
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OmIpirzuSc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2DF1.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3120
- C:\Users\Admin\AppData\Local\Temp\Scan docs. pdf...................exe
  "C:\Users\Admin\AppData\Local\Temp\Scan docs. pdf...................exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1848

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Scan docs. pdf...................exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/1848-18-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1848-28-0x00000000060D0000-0x0000000006120000-memory.dmp

Filesize
320KB

Download
memory/1848-27-0x0000000005060000-0x0000000005070000-memory.dmp

Filesize
64KB

Download
memory/1848-26-0x0000000074520000-0x0000000074CD0000-memory.dmp

Filesize
7.7MB

Download
memory/1848-25-0x0000000005EC0000-0x0000000005F26000-memory.dmp

Filesize
408KB

Download
memory/1848-24-0x0000000005070000-0x0000000005088000-memory.dmp

Filesize
96KB

Download
memory/1848-22-0x0000000005060000-0x0000000005070000-memory.dmp

Filesize
64KB

Download
memory/1848-21-0x0000000074520000-0x0000000074CD0000-memory.dmp

Filesize
7.7MB

Download
memory/4592-5-0x0000000004F70000-0x0000000004F7A000-memory.dmp

Filesize
40KB

Download
memory/4592-6-0x0000000004EE0000-0x0000000004EF0000-memory.dmp

Filesize
64KB

Download
memory/4592-11-0x00000000086E0000-0x000000000877C000-memory.dmp

Filesize
624KB

Download
memory/4592-12-0x0000000008830000-0x0000000008890000-memory.dmp

Filesize
384KB

Download
memory/4592-9-0x0000000004EE0000-0x0000000004EF0000-memory.dmp

Filesize
64KB

Download
memory/4592-8-0x0000000074520000-0x0000000074CD0000-memory.dmp

Filesize
7.7MB

Download
memory/4592-7-0x0000000008240000-0x000000000824E000-memory.dmp

Filesize
56KB

Download
memory/4592-10-0x0000000004EE0000-0x0000000004EF0000-memory.dmp

Filesize
64KB

Download
memory/4592-23-0x0000000074520000-0x0000000074CD0000-memory.dmp

Filesize
7.7MB

Download
memory/4592-1-0x0000000074520000-0x0000000074CD0000-memory.dmp

Filesize
7.7MB

Download
memory/4592-4-0x0000000004EE0000-0x0000000004EF0000-memory.dmp

Filesize
64KB

Download
memory/4592-3-0x0000000004FA0000-0x0000000005032000-memory.dmp

Filesize
584KB

Download
memory/4592-2-0x00000000054B0000-0x0000000005A54000-memory.dmp

Filesize
5.6MB

Download
memory/4592-0-0x00000000004F0000-0x000000000055A000-memory.dmp

Filesize
424KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads