agenttesla | 32dd0a80090ae3af8bd00fd8babf21fe4a769805e0ee4632114d50268bbd1127

General

Target

order 20- 0011718..exe
Size

426KB
MD5

583a510813764348af0c5c3d2b6f9385
SHA1

be80f78c782d612fca9128cdfefc9b324ae653eb
SHA256

aec020a6546f4efe2d5766ae7e7da2816c11badee1879d37de7845538b03035b
SHA512

b82acd5b8e864c0b83be494d88cd97f891cd1a5e47acbb5a425af353d3c9e7d868be10da0fd0c568de1e3478460be690ff0b648865b7f136983b434ce24fe32e

Score

10^/10

agenttesla collection evasion keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.cpworldindia.com
Port:
587
Username:
import.cs@ahd.cpworldindia.com
Password:
imprtcs@2019

Signatures

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

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1752-62-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1752-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1752-64-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1752-65-0x000000000044C91E-mapping.dmp	family_agenttesla
behavioral1/memory/1752-67-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1752-69-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/948-56-0x0000000002150000-0x00000000021A8000-memory.dmp	rezer0

Disables Task Manager via registry modification
evasion
Drops file in Drivers directory 1 IoCs

Processes:

order 20- 0011718..exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts order 20- 0011718..exe
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
T1081
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
T1081
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
T1081

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	order 20- 0011718..exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

order 20- 0011718..exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order 20- 0011718..exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order 20- 0011718..exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order 20- 0011718..exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

order 20- 0011718..exe

description pid process target process

PID 948 set thread context of 1752 948 order 20- 0011718..exe order 20- 0011718..exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1308 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1412 REG.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

order 20- 0011718..exeorder 20- 0011718..exe

pid process

948 order 20- 0011718..exe
1752 order 20- 0011718..exe
1752 order 20- 0011718..exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

order 20- 0011718..exeorder 20- 0011718..exe

description pid process

Token: SeDebugPrivilege 948 order 20- 0011718..exe
Token: SeDebugPrivilege 1752 order 20- 0011718..exe

description	pid	process	target process
PID 948 set thread context of 1752	948	order 20- 0011718..exe	order 20- 0011718..exe

pid	process
1308	schtasks.exe

pid	process
1412	REG.exe

pid	process
948	order 20- 0011718..exe
1752	order 20- 0011718..exe
1752	order 20- 0011718..exe

description	pid	process
Token: SeDebugPrivilege	948	order 20- 0011718..exe
Token: SeDebugPrivilege	1752	order 20- 0011718..exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

order 20- 0011718..exeorder 20- 0011718..exe

description	pid	process	target process
PID 948 wrote to memory of 1308	948	order 20- 0011718..exe	schtasks.exe
PID 948 wrote to memory of 1308	948	order 20- 0011718..exe	schtasks.exe
PID 948 wrote to memory of 1308	948	order 20- 0011718..exe	schtasks.exe
PID 948 wrote to memory of 1308	948	order 20- 0011718..exe	schtasks.exe
PID 948 wrote to memory of 1752	948	order 20- 0011718..exe	order 20- 0011718..exe
PID 948 wrote to memory of 1752	948	order 20- 0011718..exe	order 20- 0011718..exe
PID 948 wrote to memory of 1752	948	order 20- 0011718..exe	order 20- 0011718..exe
PID 948 wrote to memory of 1752	948	order 20- 0011718..exe	order 20- 0011718..exe
PID 948 wrote to memory of 1752	948	order 20- 0011718..exe	order 20- 0011718..exe
PID 948 wrote to memory of 1752	948	order 20- 0011718..exe	order 20- 0011718..exe
PID 948 wrote to memory of 1752	948	order 20- 0011718..exe	order 20- 0011718..exe
PID 948 wrote to memory of 1752	948	order 20- 0011718..exe	order 20- 0011718..exe
PID 948 wrote to memory of 1752	948	order 20- 0011718..exe	order 20- 0011718..exe
PID 1752 wrote to memory of 1412	1752	order 20- 0011718..exe	REG.exe
PID 1752 wrote to memory of 1412	1752	order 20- 0011718..exe	REG.exe
PID 1752 wrote to memory of 1412	1752	order 20- 0011718..exe	REG.exe
PID 1752 wrote to memory of 1412	1752	order 20- 0011718..exe	REG.exe
PID 1752 wrote to memory of 1996	1752	order 20- 0011718..exe	netsh.exe
PID 1752 wrote to memory of 1996	1752	order 20- 0011718..exe	netsh.exe
PID 1752 wrote to memory of 1996	1752	order 20- 0011718..exe	netsh.exe
PID 1752 wrote to memory of 1996	1752	order 20- 0011718..exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

order 20- 0011718..exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order 20- 0011718..exe

outlook_win_path 1 IoCs

Processes:

order 20- 0011718..exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	order 20- 0011718..exe

C:\Users\Admin\AppData\Local\Temp\order 20- 0011718..exe
"C:\Users\Admin\AppData\Local\Temp\order 20- 0011718..exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:948

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AaLebGET" /XML "C:\Users\Admin\AppData\Local\Temp\tmp761B.tmp"
2⤵
- Creates scheduled task(s)
PID:1308

C:\Users\Admin\AppData\Local\Temp\order 20- 0011718..exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1752

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
3⤵
- Modifies registry key
PID:1412

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1996

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp761B.tmp
Filesize
1KB

MD5
48edd510038018f18ff7ec9d7cf85b74

SHA1
28bfeb086b3555d8a36a63b0831654a96da0070f

SHA256
8ec85010790afb6f25a7f8761d42e3570ca152d8e17b93e3c8799fab44dd0d37

SHA512
ef591ddb0b162b031467a4a43141b772c9130c7cd7ea7e9fe7b7e571ec12861a7ad328d6b2590fa98984c57ecf51186f9d9b226dd3a09012cde938a4c33ce0a0

Download Submit
memory/948-54-0x0000000000880000-0x00000000008F0000-memory.dmp

Filesize
448KB

Download
memory/948-55-0x0000000000480000-0x0000000000490000-memory.dmp

Filesize
64KB

Download
memory/948-56-0x0000000002150000-0x00000000021A8000-memory.dmp

Filesize
352KB

Download
memory/1308-57-0x0000000000000000-mapping.dmp

Download
memory/1412-71-0x0000000000000000-mapping.dmp

Download
memory/1752-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1752-62-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1752-60-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1752-64-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1752-65-0x000000000044C91E-mapping.dmp

Download
memory/1752-67-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1752-69-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1752-70-0x0000000075B61000-0x0000000075B63000-memory.dmp

Filesize
8KB

Download
memory/1752-59-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1996-72-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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