agenttesla | 43649db543f21ac9af73d9f7e301935f29cb93d0d10050253fc552842129dd0b

General

Target

PDF4563784.exe
Size

1.1MB
MD5

f716b9d1dfef7d20b0afc1b4084f39b6
SHA1

01536c02c2e8b232a36cf338c3f1007774830702
SHA256

18a2826ae0c8ce3e76a5cb806e89d0070f70cc372cf37468721b8caf8529f401
SHA512

ac69e2ff2f18462cd251bee3c9667e794f2156ab89cd57ca73603c308fe298a2b9f20d262161a2ba4d098ec0ba49b08dcc033d6373c4d6f27763c9ddf446b782
SSDEEP

24576:qTiZucOaCrYz4jEmW/g+bRrSPMzIW3C453xSo4uKNPlS:CcyrKmW/PFSPNU53xUPA

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.totallyanonymous.com
Port:
587
Username:
[email protected]
Password:
572h094S
Email To:
[email protected]

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/4500-15-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	PDF4563784.exe

Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

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-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4396 set thread context of 4500	4396	PDF4563784.exe	94

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PDF4563784.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1628	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4396	PDF4563784.exe
4396	PDF4563784.exe
4396	PDF4563784.exe
4396	PDF4563784.exe
4500	MSBuild.exe
4500	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4396	PDF4563784.exe
Token: SeDebugPrivilege	4500	MSBuild.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4396 wrote to memory of 1628	4396	PDF4563784.exe	92
PID 4396 wrote to memory of 1628	4396	PDF4563784.exe	92
PID 4396 wrote to memory of 1628	4396	PDF4563784.exe	92
PID 4396 wrote to memory of 4500	4396	PDF4563784.exe	94
PID 4396 wrote to memory of 4500	4396	PDF4563784.exe	94
PID 4396 wrote to memory of 4500	4396	PDF4563784.exe	94
PID 4396 wrote to memory of 4500	4396	PDF4563784.exe	94
PID 4396 wrote to memory of 4500	4396	PDF4563784.exe	94
PID 4396 wrote to memory of 4500	4396	PDF4563784.exe	94
PID 4396 wrote to memory of 4500	4396	PDF4563784.exe	94
PID 4396 wrote to memory of 4500	4396	PDF4563784.exe	94

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\PDF4563784.exe
"C:\Users\Admin\AppData\Local\Temp\PDF4563784.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4396
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QauPVUBK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp20C2.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1628
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4500

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp20C2.tmp

Filesize
1KB

MD5
a8688a1f992d14cca82c1392b3612317

SHA1
16e19eef6e73cffe0d1b5f45643e9b2351c656bc

SHA256
0aaca862e3def48ebebb60f63faae842535cda96ebc826bc063bb5d5143e0dbf

SHA512
a8eab0fff9cbc88fdbf2ded0f48b233b5cdb57d759fe533940d5e8d770a51b11f31b38ac3523a57e84bfaa7111f19572c66552a42b9bb963e1decc6901c66fef

Download Submit
memory/4396-10-0x0000000006970000-0x00000000069EE000-memory.dmp

Filesize
504KB

Download
memory/4396-1-0x00000000002F0000-0x0000000000416000-memory.dmp

Filesize
1.1MB

Download
memory/4396-3-0x0000000004E40000-0x0000000004ED2000-memory.dmp

Filesize
584KB

Download
memory/4396-4-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/4396-5-0x0000000004FD0000-0x0000000004FDA000-memory.dmp

Filesize
40KB

Download
memory/4396-6-0x00000000064B0000-0x000000000654C000-memory.dmp

Filesize
624KB

Download
memory/4396-7-0x00000000051A0000-0x00000000051B2000-memory.dmp

Filesize
72KB

Download
memory/4396-8-0x00000000747EE000-0x00000000747EF000-memory.dmp

Filesize
4KB

Download
memory/4396-9-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/4396-0-0x00000000747EE000-0x00000000747EF000-memory.dmp

Filesize
4KB

Download
memory/4396-2-0x00000000053F0000-0x0000000005994000-memory.dmp

Filesize
5.6MB

Download
memory/4396-18-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/4396-11-0x0000000008FB0000-0x0000000009024000-memory.dmp

Filesize
464KB

Download
memory/4500-17-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/4500-15-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4500-19-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/4500-20-0x00000000053C0000-0x00000000053D8000-memory.dmp

Filesize
96KB

Download
memory/4500-21-0x0000000006160000-0x00000000061C6000-memory.dmp

Filesize
408KB

Download
memory/4500-22-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/4500-23-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/4500-24-0x0000000006320000-0x0000000006370000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads