agenttesla | b417b1a5df3492af25ee7374f14aa09bfe597aafcafa3fc686b4b5a95eb5d138

General

Target

PurchaseOrder-930.exe
Size

1.1MB
MD5

4ea6d320b6dde091d08c301087657734
SHA1

3b86206d268a1a8b6673fb0bed66afda02b7729a
SHA256

1258e5297f23f201da4306099ea5c86f6294245cdf7f851bc1f921b5274558cb
SHA512

b4fecde458e4a05fe7edb43bd0fdac6392471cf9297ad1f36d866a085c948aeeb30ff6d6a1ee48a646d9cab13b3bd3c474895480f699c61b37f2fce846089995
SSDEEP

12288:No645lDh7VQquRMDYXO+rWJEUnob9JXJVy9X8qU2/0VRe3k/2gqlRy45R:No68E7rWJxn4JZYFUZReUugqC45R

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Signatures

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

AgentTesla payload 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2524-19-0x0000000000400000-0x000000000045C000-memory.dmp	family_agenttesla
behavioral1/memory/2524-17-0x0000000000400000-0x000000000045C000-memory.dmp	family_agenttesla
behavioral1/memory/2524-11-0x0000000000400000-0x000000000045C000-memory.dmp	family_agenttesla
behavioral1/memory/2524-9-0x0000000000400000-0x000000000045C000-memory.dmp	family_agenttesla
behavioral1/memory/2524-15-0x0000000000400000-0x000000000045C000-memory.dmp	family_agenttesla

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 checkip.amazonaws.com
Suspicious use of SetThreadContext 1 IoCs

Processes:

PurchaseOrder-930.exe

description pid process target process

PID 2860 set thread context of 2524 2860 PurchaseOrder-930.exe RegAsm.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
NTFS ADS 1 IoCs

Processes:

cmd.exe

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\PurchaseOrder-930.exe:Zone.Identifier cmd.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegAsm.exe

pid process

2524 RegAsm.exe
2524 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PurchaseOrder-930.exeRegAsm.exe

description pid process

Token: SeDebugPrivilege 2860 PurchaseOrder-930.exe
Token: SeDebugPrivilege 2524 RegAsm.exe

flow	ioc
4	checkip.amazonaws.com

description	pid	process	target process
PID 2860 set thread context of 2524	2860	PurchaseOrder-930.exe	RegAsm.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\PurchaseOrder-930.exe:Zone.Identifier	cmd.exe

pid	process
2524	RegAsm.exe
2524	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	2860	PurchaseOrder-930.exe
Token: SeDebugPrivilege	2524	RegAsm.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

PurchaseOrder-930.exe

description	pid	process	target process
PID 2860 wrote to memory of 1988	2860	PurchaseOrder-930.exe	cmd.exe
PID 2860 wrote to memory of 1988	2860	PurchaseOrder-930.exe	cmd.exe
PID 2860 wrote to memory of 1988	2860	PurchaseOrder-930.exe	cmd.exe
PID 2860 wrote to memory of 1988	2860	PurchaseOrder-930.exe	cmd.exe
PID 2860 wrote to memory of 2524	2860	PurchaseOrder-930.exe	RegAsm.exe
PID 2860 wrote to memory of 2524	2860	PurchaseOrder-930.exe	RegAsm.exe
PID 2860 wrote to memory of 2524	2860	PurchaseOrder-930.exe	RegAsm.exe
PID 2860 wrote to memory of 2524	2860	PurchaseOrder-930.exe	RegAsm.exe
PID 2860 wrote to memory of 2524	2860	PurchaseOrder-930.exe	RegAsm.exe
PID 2860 wrote to memory of 2524	2860	PurchaseOrder-930.exe	RegAsm.exe
PID 2860 wrote to memory of 2524	2860	PurchaseOrder-930.exe	RegAsm.exe
PID 2860 wrote to memory of 2524	2860	PurchaseOrder-930.exe	RegAsm.exe
PID 2860 wrote to memory of 2524	2860	PurchaseOrder-930.exe	RegAsm.exe
PID 2860 wrote to memory of 2524	2860	PurchaseOrder-930.exe	RegAsm.exe
PID 2860 wrote to memory of 2524	2860	PurchaseOrder-930.exe	RegAsm.exe
PID 2860 wrote to memory of 2524	2860	PurchaseOrder-930.exe	RegAsm.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\PurchaseOrder-930.exe
"C:\Users\Admin\AppData\Local\Temp\PurchaseOrder-930.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2860
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C type nul > "C:\Users\Admin\AppData\Local\Temp\PurchaseOrder-930.exe:Zone.Identifier"
  2⤵
  - NTFS ADS
  PID:1988
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2524

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2524-11-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2524-9-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2524-21-0x0000000000740000-0x000000000074A000-memory.dmp

Filesize
40KB

Download
memory/2524-7-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2524-15-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2524-5-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2524-19-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2524-17-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/2524-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2860-0-0x0000000001340000-0x000000000146C000-memory.dmp

Filesize
1.2MB

Download
memory/2860-1-0x0000000074050000-0x000000007473E000-memory.dmp

Filesize
6.9MB

Download
memory/2860-4-0x0000000074050000-0x000000007473E000-memory.dmp

Filesize
6.9MB

Download
memory/2860-3-0x0000000000520000-0x0000000000560000-memory.dmp

Filesize
256KB

Download
memory/2860-20-0x0000000074050000-0x000000007473E000-memory.dmp

Filesize
6.9MB

Download
memory/2860-2-0x0000000000470000-0x000000000049C000-memory.dmp

Filesize
176KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads