agenttesla | 3096973acd0408ca6115b08d3e7968a5f029e353878991a39c22cc3f9d60683d

General

Target

tmp.exe
Size

673KB
MD5

86841a1ccb8603fd4c5f44ab5f978d4d
SHA1

00c814bca41e7da4e5694534dbafa6201484bc4e
SHA256

3096973acd0408ca6115b08d3e7968a5f029e353878991a39c22cc3f9d60683d
SHA512

519aa6b845a12d3f3a0b7cb6654796f2c08ea6f0912a9a1490fef52a39e535bfb57e44f7e19b974a3cd4e4ae6d185681de464a7924faf9511e6a4ff6abee425d
SSDEEP

12288:FrD6UaPEy03p4YIWo4FhXf0fDT2akV4+dcWTWNH5AyLY/VZ0K:1D/PJnIWo47p4QdTs5DYNWK

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://valvulasthermovalve.cl
Port:
21
Username:
[email protected]
Password:
LILKOOLL14!!

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
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-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe
Key opened	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe
Key opened	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
51	api.ipify.org
52	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4436 set thread context of 400	4436	tmp.exe	100

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
400	tmp.exe
400	tmp.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	400	tmp.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4436 wrote to memory of 400	4436	tmp.exe	100
PID 4436 wrote to memory of 400	4436	tmp.exe	100
PID 4436 wrote to memory of 400	4436	tmp.exe	100
PID 4436 wrote to memory of 400	4436	tmp.exe	100
PID 4436 wrote to memory of 400	4436	tmp.exe	100
PID 4436 wrote to memory of 400	4436	tmp.exe	100
PID 4436 wrote to memory of 400	4436	tmp.exe	100
PID 4436 wrote to memory of 400	4436	tmp.exe	100

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1141987721-3945596982-3297311814-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4436
- C:\Users\Admin\AppData\Local\Temp\tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:400

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

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\tmp.exe.log

Filesize
1KB

MD5
27b2fec2a6283b09ef15bd709cb96c3d

SHA1
728585dd6390edf7806524dcf4bf18139632a001

SHA256
451a266b23424f3075e68b990cb90c7c177d48a64688c39ee77a4e9e239cf311

SHA512
bb10e90a881b259b1b90e54a1451f660c96e900576000a294cd1311ac5a6d3b3567cc7ad169ed26ff38719d65462ad31b2247e0f80118dd693f45927255de50b

Download Submit
memory/400-13-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/400-22-0x0000000002AB0000-0x0000000002AC0000-memory.dmp

Filesize
64KB

Download
memory/400-21-0x00000000751E0000-0x0000000075990000-memory.dmp

Filesize
7.7MB

Download
memory/400-20-0x00000000067C0000-0x0000000006810000-memory.dmp

Filesize
320KB

Download
memory/400-19-0x0000000005250000-0x00000000052B6000-memory.dmp

Filesize
408KB

Download
memory/400-18-0x0000000002AB0000-0x0000000002AC0000-memory.dmp

Filesize
64KB

Download
memory/400-16-0x00000000751E0000-0x0000000075990000-memory.dmp

Filesize
7.7MB

Download
memory/4436-5-0x0000000004C20000-0x0000000004C2A000-memory.dmp

Filesize
40KB

Download
memory/4436-6-0x00000000051C0000-0x00000000051DA000-memory.dmp

Filesize
104KB

Download
memory/4436-10-0x00000000051F0000-0x00000000051FC000-memory.dmp

Filesize
48KB

Download
memory/4436-11-0x0000000006430000-0x00000000064AC000-memory.dmp

Filesize
496KB

Download
memory/4436-12-0x00000000077C0000-0x000000000785C000-memory.dmp

Filesize
624KB

Download
memory/4436-8-0x0000000004DA0000-0x0000000004DB0000-memory.dmp

Filesize
64KB

Download
memory/4436-7-0x00000000751E0000-0x0000000075990000-memory.dmp

Filesize
7.7MB

Download
memory/4436-9-0x00000000051E0000-0x00000000051EA000-memory.dmp

Filesize
40KB

Download
memory/4436-17-0x00000000751E0000-0x0000000075990000-memory.dmp

Filesize
7.7MB

Download
memory/4436-1-0x00000000751E0000-0x0000000075990000-memory.dmp

Filesize
7.7MB

Download
memory/4436-4-0x0000000004DA0000-0x0000000004DB0000-memory.dmp

Filesize
64KB

Download
memory/4436-3-0x0000000004B70000-0x0000000004C02000-memory.dmp

Filesize
584KB

Download
memory/4436-2-0x0000000005200000-0x00000000057A4000-memory.dmp

Filesize
5.6MB

Download
memory/4436-0-0x0000000000100000-0x00000000001AE000-memory.dmp

Filesize
696KB

Download

Analysis

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