agenttesla | da56d8f4ee82eaeb593bd5cd320e4d544163c674e26031edb6bd5c409953b2eb

General

Target

tmp.exe
Size

872KB
MD5

6e4c51c65c966531518f3ace3499ade7
SHA1

79920fbff850c5a632e0e2b43ff400f13a8a6238
SHA256

da56d8f4ee82eaeb593bd5cd320e4d544163c674e26031edb6bd5c409953b2eb
SHA512

57915ac32b27a793a98071731140466678316364192d9ab98abdb8bf243f34d47c040b6bd970a1e854c40f2801a134391af44529cbdc6672490bf283d61acabb
SSDEEP

12288:9ZGQ4l+T38LYYOyTFW2HqIcUrMQEsVuggBP3ABZbzQLKHdHz0:mQ4S8YzGHGMMQEscggBIBF8KH

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
kV$bSqJ1 daniel
Email To:
[email protected]

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	tmp.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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gcWPrHZ = "C:\\Users\\Admin\\AppData\\Roaming\\gcWPrHZ\\gcWPrHZ.exe"	tmp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4792 set thread context of 4552	4792	tmp.exe	95

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

pid	Process
4312	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
4792	tmp.exe
4792	tmp.exe
4792	tmp.exe
4792	tmp.exe
4792	tmp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4792	tmp.exe
Token: SeDebugPrivilege	4552	tmp.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4792 wrote to memory of 4312	4792	tmp.exe	91
PID 4792 wrote to memory of 4312	4792	tmp.exe	91
PID 4792 wrote to memory of 4312	4792	tmp.exe	91
PID 4792 wrote to memory of 3664	4792	tmp.exe	93
PID 4792 wrote to memory of 3664	4792	tmp.exe	93
PID 4792 wrote to memory of 3664	4792	tmp.exe	93
PID 4792 wrote to memory of 2800	4792	tmp.exe	94
PID 4792 wrote to memory of 2800	4792	tmp.exe	94
PID 4792 wrote to memory of 2800	4792	tmp.exe	94
PID 4792 wrote to memory of 4552	4792	tmp.exe	95
PID 4792 wrote to memory of 4552	4792	tmp.exe	95
PID 4792 wrote to memory of 4552	4792	tmp.exe	95
PID 4792 wrote to memory of 4552	4792	tmp.exe	95
PID 4792 wrote to memory of 4552	4792	tmp.exe	95
PID 4792 wrote to memory of 4552	4792	tmp.exe	95
PID 4792 wrote to memory of 4552	4792	tmp.exe	95
PID 4792 wrote to memory of 4552	4792	tmp.exe	95

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\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⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4792
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SbhNObg" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF38C.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4312
- C:\Users\Admin\AppData\Local\Temp\tmp.exe
  "{path}"
  2⤵
  PID:3664
- C:\Users\Admin\AppData\Local\Temp\tmp.exe
  "{path}"
  2⤵
  PID:2800
- C:\Users\Admin\AppData\Local\Temp\tmp.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4552

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

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\tmp.exe.log

Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF38C.tmp

Filesize
1KB

MD5
3d47c535f7b0b72926b52c045cae5122

SHA1
ec8c65fa107a20f97012be56bcc858eb915d54cd

SHA256
cba6dee5fc6f7091da846ef5b3285a3b6f5b86a7da9791e9887b1191e8fc5293

SHA512
266e93fd7321c6e18f4c828d2f05a1aa920a358a4c848adeef944d3b70026c7ba09eb5e41d23cb7db82d2f4b5c3a21b5bb55afdf3e64581b66470691f1c423fb

Download Submit
memory/4552-148-0x0000000005270000-0x0000000005280000-memory.dmp

Filesize
64KB

Download
memory/4552-144-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/4552-152-0x0000000005270000-0x0000000005280000-memory.dmp

Filesize
64KB

Download
memory/4552-151-0x0000000006920000-0x0000000006AE2000-memory.dmp

Filesize
1.8MB

Download
memory/4552-150-0x0000000006700000-0x0000000006750000-memory.dmp

Filesize
320KB

Download
memory/4552-147-0x0000000005280000-0x00000000052E6000-memory.dmp

Filesize
408KB

Download
memory/4792-139-0x0000000005720000-0x0000000005730000-memory.dmp

Filesize
64KB

Download
memory/4792-135-0x0000000005A70000-0x0000000006014000-memory.dmp

Filesize
5.6MB

Download
memory/4792-134-0x0000000005420000-0x00000000054BC000-memory.dmp

Filesize
624KB

Download
memory/4792-140-0x0000000005720000-0x0000000005730000-memory.dmp

Filesize
64KB

Download
memory/4792-133-0x0000000000980000-0x0000000000A60000-memory.dmp

Filesize
896KB

Download
memory/4792-136-0x0000000005560000-0x00000000055F2000-memory.dmp

Filesize
584KB

Download
memory/4792-138-0x0000000005730000-0x0000000005786000-memory.dmp

Filesize
344KB

Download
memory/4792-137-0x00000000054C0000-0x00000000054CA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads