agenttesla | b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a

General

Target

b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe
Size

569KB
MD5

809ba3f19600317ac167b5ec0612fa02
SHA1

2d1990457f60acdfac8c15466fa18b97aa181d68
SHA256

b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a
SHA512

e4ccc0642c1c08862281e6064526bcc09f6a2a8158ff63d8bd7f4247aa77eeb29ac290425f3f0a20a34cb2335048fcaeb689b05e67e3e16f5ccd60770213a703
SSDEEP

12288:FN86X601YM8eTlbuN3S/7xM1gPkUifDa3KdqxhzsWrKTJoe:FNf8A6NUVMna3Kdaho0+Z

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.mbarieservicesltd.com
Port:
587
Username:
[email protected]
Password:
*o9H+18Q4%;M
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware 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
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-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3372 set thread context of 3456	3372	b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe	93

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	b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3456	b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3372 wrote to memory of 3456	3372	b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe	93
PID 3372 wrote to memory of 3456	3372	b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe	93
PID 3372 wrote to memory of 3456	3372	b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe	93
PID 3372 wrote to memory of 3456	3372	b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe	93
PID 3372 wrote to memory of 3456	3372	b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe	93
PID 3372 wrote to memory of 3456	3372	b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe	93
PID 3372 wrote to memory of 3456	3372	b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe	93
PID 3372 wrote to memory of 3456	3372	b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe	93

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe

C:\Users\Admin\AppData\Local\Temp\b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe
"C:\Users\Admin\AppData\Local\Temp\b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3372
- C:\Users\Admin\AppData\Local\Temp\b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe
  "C:\Users\Admin\AppData\Local\Temp\b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3456

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

4

T1552

Credentials In Files

3

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\b27978ed194861aefac16772c229ff70288f71cc59611679eae88035a6c0191a.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/3372-5-0x0000000005140000-0x000000000514A000-memory.dmp

Filesize
40KB

Download
memory/3372-0-0x000000007486E000-0x000000007486F000-memory.dmp

Filesize
4KB

Download
memory/3372-11-0x0000000006450000-0x00000000064BA000-memory.dmp

Filesize
424KB

Download
memory/3372-18-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3372-12-0x0000000008B70000-0x0000000008C0C000-memory.dmp

Filesize
624KB

Download
memory/3372-6-0x0000000005370000-0x0000000005384000-memory.dmp

Filesize
80KB

Download
memory/3372-7-0x000000007486E000-0x000000007486F000-memory.dmp

Filesize
4KB

Download
memory/3372-8-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3372-9-0x0000000006400000-0x0000000006408000-memory.dmp

Filesize
32KB

Download
memory/3372-10-0x0000000006410000-0x000000000641C000-memory.dmp

Filesize
48KB

Download
memory/3372-3-0x00000000051A0000-0x0000000005232000-memory.dmp

Filesize
584KB

Download
memory/3372-2-0x0000000005750000-0x0000000005CF4000-memory.dmp

Filesize
5.6MB

Download
memory/3372-4-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3372-1-0x00000000006C0000-0x0000000000754000-memory.dmp

Filesize
592KB

Download
memory/3456-16-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3456-17-0x0000000004E80000-0x0000000004EE6000-memory.dmp

Filesize
408KB

Download
memory/3456-13-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/3456-19-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3456-20-0x00000000063F0000-0x0000000006440000-memory.dmp

Filesize
320KB

Download
memory/3456-21-0x0000000006610000-0x00000000067D2000-memory.dmp

Filesize
1.8MB

Download
memory/3456-22-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download

Analysis

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