agenttesla | b4327ec29af05b6401734e517cbda55f833c8ed8afc4e232178b470a1ed12aa5

Analysis

max time kernel
143s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
23/03/2022, 16:18

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General

Target
HSBC SWIFT.exe
Size 285KB
Sample220323-tr1cksdcar
SHA256 b4327ec29af05b6401734e517cbda55f833c8ed8afc4e232178b470a1ed12aa5
MD5 71af91bda6e2e29182c01b4f5cc90912
SHA1 dfc1cc5218e839b00feaa7494548e140457535c3
SHA512 c692bdd65d6903224b50a68bde66aaa32cc70733080b52373706879dddb821d5c2eec7e096e13851c19eac02402dfd1efbc78d545c5803b151f8f369823706a8
MD5 SHA1 SHA512

Score

10^/10

agenttesla collection keylogger persistence spyware stealer suricata trojan

Malware Config

Extracted

Credentials

Protocol
smtp
Host
mail.zealaqua.com
Port
587
Username
[email protected]
Password
8#z_6[VL?lPD

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.zealaqua.com
Port
587
Username
[email protected]
Password
8#z_6[VL?lPD

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	HSBC SWIFT.exe

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-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	HSBC SWIFT.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-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HSBC SWIFT.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HSBC SWIFT.exe
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HSBC SWIFT.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-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kECjS = "C:\\Users\\Admin\\AppData\\Roaming\\kECjS\\kECjS.exe"	HSBC SWIFT.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4152 set thread context of 1408	4152	HSBC SWIFT.exe	95

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3704	timeout.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4708	powershell.exe
4708	powershell.exe
4152	HSBC SWIFT.exe
4152	HSBC SWIFT.exe
1408	HSBC SWIFT.exe
1408	HSBC SWIFT.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4152	HSBC SWIFT.exe
Token: SeDebugPrivilege	4708	powershell.exe
Token: SeDebugPrivilege	1408	HSBC SWIFT.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4152 wrote to memory of 4708	4152	HSBC SWIFT.exe	79
PID 4152 wrote to memory of 4708	4152	HSBC SWIFT.exe	79
PID 4152 wrote to memory of 4708	4152	HSBC SWIFT.exe	79
PID 4152 wrote to memory of 3808	4152	HSBC SWIFT.exe	89
PID 4152 wrote to memory of 3808	4152	HSBC SWIFT.exe	89
PID 4152 wrote to memory of 3808	4152	HSBC SWIFT.exe	89
PID 3808 wrote to memory of 3704	3808	cmd.exe	91
PID 3808 wrote to memory of 3704	3808	cmd.exe	91
PID 3808 wrote to memory of 3704	3808	cmd.exe	91
PID 4152 wrote to memory of 1408	4152	HSBC SWIFT.exe	95
PID 4152 wrote to memory of 1408	4152	HSBC SWIFT.exe	95
PID 4152 wrote to memory of 1408	4152	HSBC SWIFT.exe	95
PID 4152 wrote to memory of 1408	4152	HSBC SWIFT.exe	95
PID 4152 wrote to memory of 1408	4152	HSBC SWIFT.exe	95
PID 4152 wrote to memory of 1408	4152	HSBC SWIFT.exe	95
PID 4152 wrote to memory of 1408	4152	HSBC SWIFT.exe	95
PID 4152 wrote to memory of 1408	4152	HSBC SWIFT.exe	95

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HSBC SWIFT.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	HSBC SWIFT.exe

C:\Users\Admin\AppData\Local\Temp\HSBC SWIFT.exe
"C:\Users\Admin\AppData\Local\Temp\HSBC SWIFT.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4152
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBzACAAMQA2AA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4708
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout 20
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3808
- - C:\Windows\SysWOW64\timeout.exe
    timeout 20
    3⤵
    - Delays execution with timeout.exe
    PID:3704
- C:\Users\Admin\AppData\Local\Temp\HSBC SWIFT.exe
  "C:\Users\Admin\AppData\Local\Temp\HSBC SWIFT.exe"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1408

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/1408-150-0x0000000006440000-0x000000000644A000-memory.dmp

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memory/1408-149-0x00000000064C0000-0x0000000006552000-memory.dmp

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memory/1408-148-0x0000000006260000-0x00000000062B0000-memory.dmp

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memory/1408-147-0x0000000004F10000-0x0000000004FAC000-memory.dmp

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memory/1408-146-0x0000000005580000-0x0000000005B24000-memory.dmp

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memory/1408-144-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/4152-130-0x00000000003A0000-0x00000000003EC000-memory.dmp

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memory/4708-135-0x0000000005410000-0x0000000005476000-memory.dmp

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memory/4708-139-0x0000000005FA0000-0x0000000005FBA000-memory.dmp

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memory/4708-140-0x00000000024F5000-0x00000000024F7000-memory.dmp

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memory/4708-138-0x0000000007150000-0x00000000077CA000-memory.dmp

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memory/4708-137-0x0000000005B00000-0x0000000005B1E000-memory.dmp

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memory/4708-136-0x00000000054F0000-0x0000000005556000-memory.dmp

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memory/4708-134-0x0000000005270000-0x0000000005292000-memory.dmp

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memory/4708-133-0x0000000004BD0000-0x00000000051F8000-memory.dmp

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memory/4708-132-0x0000000004560000-0x0000000004596000-memory.dmp

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