agenttesla | 21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769

General

Target

21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe
Size

1.3MB
MD5

4a0719ed59454a34f7e31cfeead5b604
SHA1

f3fe5ed9d9328ddcac6ffd695aef28575bf4a7fa
SHA256

21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769
SHA512

0262491c8ab14b2b8fe8e31bb937a0c5f10ab05750fcfebb8890081bca7d3fbfa9c0595e5e24921e62a33a8d03c253bb64aa2804c95d250cba09b4cd4cd4d729
SSDEEP

12288:+bXqDt5We1yRFKMM1zvueoRUg+82O/GYahbAihO1c++YyHR8S8:+Ot5DyR5Qv+Ug+82OhahbAipHR8L

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.1and1.es
Port:
587
Username:
[email protected]
Password:
qWa8u9_2

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

Processes:

resource	yara_rule
behavioral2/memory/740-12-0x0000000000400000-0x000000000043C000-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

Processes:

21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe

description	pid	Process	procid_target
PID 1312 set thread context of 740	1312	21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.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

Processes:

21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe

pid	Process
740	21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe
740	21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe

description	pid	Process
Token: SeDebugPrivilege	740	21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe

description	pid	Process	procid_target
PID 1312 wrote to memory of 740	1312	21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe	100
PID 1312 wrote to memory of 740	1312	21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe	100
PID 1312 wrote to memory of 740	1312	21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe	100
PID 1312 wrote to memory of 740	1312	21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe	100
PID 1312 wrote to memory of 740	1312	21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe	100
PID 1312 wrote to memory of 740	1312	21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe	100
PID 1312 wrote to memory of 740	1312	21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe	100
PID 1312 wrote to memory of 740	1312	21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe	100

outlook_office_path 1 IoCs

Processes:

21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe

outlook_win_path 1 IoCs

Processes:

21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe

C:\Users\Admin\AppData\Local\Temp\21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe
"C:\Users\Admin\AppData\Local\Temp\21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1312
- C:\Users\Admin\AppData\Local\Temp\21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe
  "C:\Users\Admin\AppData\Local\Temp\21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.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:740

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\21b7ff01ef738f027f903bf46b3515ce7e505dfe46e42e0d693399e6f23a4769.exe.log

Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
memory/740-12-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/740-23-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/740-22-0x0000000006B00000-0x0000000006B50000-memory.dmp

Filesize
320KB

Download
memory/740-21-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/740-20-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/740-19-0x00000000067D0000-0x0000000006836000-memory.dmp

Filesize
408KB

Download
memory/740-18-0x0000000005B10000-0x0000000005B28000-memory.dmp

Filesize
96KB

Download
memory/740-17-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/740-15-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/1312-10-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/1312-11-0x000000000D6E0000-0x000000000D750000-memory.dmp

Filesize
448KB

Download
memory/1312-0-0x000000007522E000-0x000000007522F000-memory.dmp

Filesize
4KB

Download
memory/1312-9-0x000000007522E000-0x000000007522F000-memory.dmp

Filesize
4KB

Download
memory/1312-8-0x0000000001800000-0x0000000001828000-memory.dmp

Filesize
160KB

Download
memory/1312-16-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/1312-7-0x0000000005900000-0x0000000005956000-memory.dmp

Filesize
344KB

Download
memory/1312-5-0x0000000005720000-0x000000000572A000-memory.dmp

Filesize
40KB

Download
memory/1312-6-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/1312-4-0x00000000057E0000-0x0000000005872000-memory.dmp

Filesize
584KB

Download
memory/1312-3-0x0000000005D90000-0x0000000006334000-memory.dmp

Filesize
5.6MB

Download
memory/1312-2-0x0000000005730000-0x00000000057CC000-memory.dmp

Filesize
624KB

Download
memory/1312-1-0x0000000000BE0000-0x0000000000D32000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads