agenttesla | caf65e84911a0a9c41c63bde364f52cfe70b7f768d0c5daac67501c5f3fbf0fe

General

Target

soaMay2020pdf.exe
Size

611KB
MD5

669256671009488ea28cd80afddb0ccc
SHA1

3d2f08956221190057d84428f17b80607d979304
SHA256

8beeeeda5eedb1246f95b8c4f658e71dc5f709dd00454da770d1529a87b2b810
SHA512

c8a5574fa79e029781eab19860e4be2abf28c56bfeb7a4fb54b0bc6c18f10cb4319ee2a331cf53bb7a71fc31318457cda68311bb540341890a93dc6b237b6bf4

Score

10^/10

agenttesla collection keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
secure231.servconfig.com
Port:
587
Username:
info@eltaef.com
Password:
eltaefSH6548883

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/1168-64-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1168-65-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1168-66-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1168-67-0x000000000044C92E-mapping.dmp	family_agenttesla
behavioral1/memory/1168-69-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1168-71-0x0000000000400000-0x0000000000452000-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/1668-58-0x00000000048F0000-0x0000000004948000-memory.dmp	rezer0

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

soaMay2020pdf.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	soaMay2020pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	soaMay2020pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	soaMay2020pdf.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

soaMay2020pdf.exe

description pid process target process

PID 1668 set thread context of 1168 1668 soaMay2020pdf.exe soaMay2020pdf.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

1064 schtasks.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

soaMay2020pdf.exesoaMay2020pdf.exe

pid process

1668 soaMay2020pdf.exe
1668 soaMay2020pdf.exe
1668 soaMay2020pdf.exe
1168 soaMay2020pdf.exe
1168 soaMay2020pdf.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

soaMay2020pdf.exesoaMay2020pdf.exe

description pid process

Token: SeDebugPrivilege 1668 soaMay2020pdf.exe
Token: SeDebugPrivilege 1168 soaMay2020pdf.exe

description	pid	process	target process
PID 1668 set thread context of 1168	1668	soaMay2020pdf.exe	soaMay2020pdf.exe

pid	process
1064	schtasks.exe

pid	process
1668	soaMay2020pdf.exe
1668	soaMay2020pdf.exe
1668	soaMay2020pdf.exe
1168	soaMay2020pdf.exe
1168	soaMay2020pdf.exe

description	pid	process
Token: SeDebugPrivilege	1668	soaMay2020pdf.exe
Token: SeDebugPrivilege	1168	soaMay2020pdf.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

soaMay2020pdf.exesoaMay2020pdf.exe

description	pid	process	target process
PID 1668 wrote to memory of 1064	1668	soaMay2020pdf.exe	schtasks.exe
PID 1668 wrote to memory of 1064	1668	soaMay2020pdf.exe	schtasks.exe
PID 1668 wrote to memory of 1064	1668	soaMay2020pdf.exe	schtasks.exe
PID 1668 wrote to memory of 1064	1668	soaMay2020pdf.exe	schtasks.exe
PID 1668 wrote to memory of 1168	1668	soaMay2020pdf.exe	soaMay2020pdf.exe
PID 1668 wrote to memory of 1168	1668	soaMay2020pdf.exe	soaMay2020pdf.exe
PID 1668 wrote to memory of 1168	1668	soaMay2020pdf.exe	soaMay2020pdf.exe
PID 1668 wrote to memory of 1168	1668	soaMay2020pdf.exe	soaMay2020pdf.exe
PID 1668 wrote to memory of 1168	1668	soaMay2020pdf.exe	soaMay2020pdf.exe
PID 1668 wrote to memory of 1168	1668	soaMay2020pdf.exe	soaMay2020pdf.exe
PID 1668 wrote to memory of 1168	1668	soaMay2020pdf.exe	soaMay2020pdf.exe
PID 1668 wrote to memory of 1168	1668	soaMay2020pdf.exe	soaMay2020pdf.exe
PID 1668 wrote to memory of 1168	1668	soaMay2020pdf.exe	soaMay2020pdf.exe
PID 1168 wrote to memory of 1872	1168	soaMay2020pdf.exe	netsh.exe
PID 1168 wrote to memory of 1872	1168	soaMay2020pdf.exe	netsh.exe
PID 1168 wrote to memory of 1872	1168	soaMay2020pdf.exe	netsh.exe
PID 1168 wrote to memory of 1872	1168	soaMay2020pdf.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

soaMay2020pdf.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	soaMay2020pdf.exe

outlook_win_path 1 IoCs

Processes:

soaMay2020pdf.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	soaMay2020pdf.exe

C:\Users\Admin\AppData\Local\Temp\soaMay2020pdf.exe
"C:\Users\Admin\AppData\Local\Temp\soaMay2020pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1668

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\faKgHF" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA120.tmp"
2⤵
- Creates scheduled task(s)
PID:1064

C:\Users\Admin\AppData\Local\Temp\soaMay2020pdf.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1168

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1872

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

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA120.tmp
Filesize
1KB

MD5
6c45a164da1c691447a3dd8e7394ab06

SHA1
ca62732d0730ec847ff38e6a375fe0f729dac390

SHA256
20a4cf0b3e8dd136879601e25020c87b5d4dd974a3a57edee97cca16ee4b8ead

SHA512
c82924592c38c5968e5218720af4402a2f1968c9579f6cbbc20117e85843ee510b675c48bf04575a7f4238f7a6bf1afab57ecd28d9e235dbd9de2cf7a9cabf84

Download Submit
memory/1064-59-0x0000000000000000-mapping.dmp

Download
memory/1168-67-0x000000000044C92E-mapping.dmp

Download
memory/1168-65-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1168-71-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1168-69-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1168-66-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1168-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1168-62-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1168-64-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1668-55-0x00000000042F0000-0x0000000004354000-memory.dmp

Filesize
400KB

Download
memory/1668-57-0x0000000000410000-0x0000000000418000-memory.dmp

Filesize
32KB

Download
memory/1668-54-0x0000000000820000-0x00000000008C0000-memory.dmp

Filesize
640KB

Download
memory/1668-56-0x0000000075BA1000-0x0000000075BA3000-memory.dmp

Filesize
8KB

Download
memory/1668-58-0x00000000048F0000-0x0000000004948000-memory.dmp

Filesize
352KB

Download
memory/1872-73-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads