agenttesla | 7c94cd6d03afe04a4845acec497e286307648fa6d71138bd2c011660209d5b4d

General

Target

Curriculum Vitae.exe
Size

480KB
MD5

8707c62068f99685b8896f703217ce1b
SHA1

b96b52bbe4d1800a00eb33f4c1f228c7404bc005
SHA256

90bb4acf70c8626f3ce6a9630437883bbfc62ae8ad344b673a8f005ce9d2ac30
SHA512

bd4ec5c3f392c6a685dbe04fbac73539a85e1bf7b563f71865929c37d5fd8d8776c3fd6fb8c3ccf2b994dc5f6dae26a8581f8fe1637169c193ce83532662eaeb
SSDEEP

12288:kxXrbOHGrhb3S2tldN/7qOwuF+PLFeIiTNk:KbCQlX/7qO7gxeLTNk

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.ofilsysterns.com
Port:
587
Username:
[email protected]
Password:
@o^M)K*1

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/3304-11-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

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 3 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

Credentials from Web Browsers
T1555.003
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-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Curriculum Vitae.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Curriculum Vitae.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Curriculum Vitae.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3976 set thread context of 3304	3976	Curriculum Vitae.exe	100

System Location Discovery: System Language Discovery 1 TTPs 2 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	Curriculum Vitae.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Curriculum Vitae.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3976	Curriculum Vitae.exe
3976	Curriculum Vitae.exe
3976	Curriculum Vitae.exe
3976	Curriculum Vitae.exe
3976	Curriculum Vitae.exe
3976	Curriculum Vitae.exe
3976	Curriculum Vitae.exe
3976	Curriculum Vitae.exe
3976	Curriculum Vitae.exe
3304	Curriculum Vitae.exe
3304	Curriculum Vitae.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3976	Curriculum Vitae.exe
Token: SeDebugPrivilege	3304	Curriculum Vitae.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3976 wrote to memory of 3304	3976	Curriculum Vitae.exe	100
PID 3976 wrote to memory of 3304	3976	Curriculum Vitae.exe	100
PID 3976 wrote to memory of 3304	3976	Curriculum Vitae.exe	100
PID 3976 wrote to memory of 3304	3976	Curriculum Vitae.exe	100
PID 3976 wrote to memory of 3304	3976	Curriculum Vitae.exe	100
PID 3976 wrote to memory of 3304	3976	Curriculum Vitae.exe	100
PID 3976 wrote to memory of 3304	3976	Curriculum Vitae.exe	100
PID 3976 wrote to memory of 3304	3976	Curriculum Vitae.exe	100

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Curriculum Vitae.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Curriculum Vitae.exe

C:\Users\Admin\AppData\Local\Temp\Curriculum Vitae.exe
"C:\Users\Admin\AppData\Local\Temp\Curriculum Vitae.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3976
- C:\Users\Admin\AppData\Local\Temp\Curriculum Vitae.exe
  "C:\Users\Admin\AppData\Local\Temp\Curriculum Vitae.exe"
  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:3304

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

5

T1552

Credentials In Files

4

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

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\Curriculum Vitae.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/3304-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3304-22-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/3304-21-0x0000000006330000-0x0000000006380000-memory.dmp

Filesize
320KB

Download
memory/3304-20-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/3304-19-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/3304-18-0x0000000005C30000-0x0000000005C96000-memory.dmp

Filesize
408KB

Download
memory/3304-17-0x0000000004FA0000-0x0000000004FB8000-memory.dmp

Filesize
96KB

Download
memory/3304-16-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/3304-14-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/3976-5-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/3976-10-0x0000000009DC0000-0x0000000009E20000-memory.dmp

Filesize
384KB

Download
memory/3976-9-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/3976-8-0x00000000744BE000-0x00000000744BF000-memory.dmp

Filesize
4KB

Download
memory/3976-15-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/3976-7-0x00000000061F0000-0x00000000061FE000-memory.dmp

Filesize
56KB

Download
memory/3976-6-0x0000000006290000-0x000000000632C000-memory.dmp

Filesize
624KB

Download
memory/3976-0-0x00000000744BE000-0x00000000744BF000-memory.dmp

Filesize
4KB

Download
memory/3976-4-0x0000000004C00000-0x0000000004C0A000-memory.dmp

Filesize
40KB

Download
memory/3976-3-0x0000000004C70000-0x0000000004D02000-memory.dmp

Filesize
584KB

Download
memory/3976-2-0x0000000005180000-0x0000000005724000-memory.dmp

Filesize
5.6MB

Download
memory/3976-1-0x00000000001C0000-0x0000000000240000-memory.dmp

Filesize
512KB

Download

Analysis

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