agenttesla | 1a7627dcff8f8d294411d085df8775e37c8277e86e55bbb5a45afe863a95d208

Analysis

max time kernel
67s
max time network
145s
platform
windows7_x64
resource
win7-20220414-en
submitted
05/05/2022, 01:28

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General

Target
Payment Slip.exe
Size 517KB
Sample220505-bvntvaeha9
SHA256 1a7627dcff8f8d294411d085df8775e37c8277e86e55bbb5a45afe863a95d208
MD5 10ee5e66c551f7dfdf146d805de65656
SHA1 50742d88187e34487b909994fba3422f6359b548
SHA512 051644bf60b58a56a65490d03a7091e3bca6a2effbe113aa3b412db6b701efcdbf36448297ec65c5ffb72ee6bf581594e9d9d8f37c392551de4e9223edf2d048
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger spyware stealer suricata trojan

Malware Config

Extracted

Credentials

Protocol
smtp
Host
mail.avizatechnologies.com
Port
587
Username
[email protected]
Password
s?I%3su#oFtB

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.avizatechnologies.com
Port
587
Username
[email protected]
Password
s?I%3su#oFtB
Email to
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
suricata: ET MALWARE AgentTesla Exfil Via SMTP
suricata: ET MALWARE AgentTesla Exfil Via SMTP
suricata

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegSvcs.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1008 set thread context of 964	1008	Payment Slip.exe	30

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
2016	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1008	Payment Slip.exe
964	RegSvcs.exe
964	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1008	Payment Slip.exe
Token: SeDebugPrivilege	964	RegSvcs.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1008 wrote to memory of 2016	1008	Payment Slip.exe	28
PID 1008 wrote to memory of 2016	1008	Payment Slip.exe	28
PID 1008 wrote to memory of 2016	1008	Payment Slip.exe	28
PID 1008 wrote to memory of 2016	1008	Payment Slip.exe	28
PID 1008 wrote to memory of 964	1008	Payment Slip.exe	30
PID 1008 wrote to memory of 964	1008	Payment Slip.exe	30
PID 1008 wrote to memory of 964	1008	Payment Slip.exe	30
PID 1008 wrote to memory of 964	1008	Payment Slip.exe	30
PID 1008 wrote to memory of 964	1008	Payment Slip.exe	30
PID 1008 wrote to memory of 964	1008	Payment Slip.exe	30
PID 1008 wrote to memory of 964	1008	Payment Slip.exe	30
PID 1008 wrote to memory of 964	1008	Payment Slip.exe	30
PID 1008 wrote to memory of 964	1008	Payment Slip.exe	30
PID 1008 wrote to memory of 964	1008	Payment Slip.exe	30
PID 1008 wrote to memory of 964	1008	Payment Slip.exe	30
PID 1008 wrote to memory of 964	1008	Payment Slip.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Payment Slip.exe
"C:\Users\Admin\AppData\Local\Temp\Payment Slip.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1008
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VftiwBA" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5FAE.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2016
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:964

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

tmp5FAE.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp5FAE.tmp
Size 1KB
SHA256 cf1294e1f142a5492e0541e68ce425dbfda9bafb3d132f0b343fe0cbc71562bb
MD5 724850139508e6c32c7e4a578d7b856f
SHA1 ada8e45407749588f35dea35100719393ad4bb4c
SHA512 c1e1cd077f3501b222c613d171e1488d8e8df8991af96971be000ec60c0e240cd7684584d071cc687137d5ea1f32d9339456bde3a47394a05362701466d333ba
MD5 SHA1 SHA512

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memory/964-64-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/964-66-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/964-71-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/964-69-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/964-65-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/964-61-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/964-62-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1008-54-0x00000000010E0000-0x0000000001168000-memory.dmp

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memory/1008-55-0x0000000075FC1000-0x0000000075FC3000-memory.dmp

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memory/1008-56-0x0000000000470000-0x000000000047A000-memory.dmp

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memory/1008-58-0x0000000000A50000-0x0000000000A8A000-memory.dmp

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memory/1008-57-0x0000000005190000-0x000000000520E000-memory.dmp

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