agenttesla | a948c3fb252ee14db710de435d1dc5f88d0923e6e4eb20fade67aaf5e2e425ac

General

Target

eca512d5289783f13b346958c0bca5d9_JaffaCakes118.exe
Size

1.4MB
MD5

eca512d5289783f13b346958c0bca5d9
SHA1

061f5375c5edd832c9d6e9dcfa0a8733e1295dd0
SHA256

a948c3fb252ee14db710de435d1dc5f88d0923e6e4eb20fade67aaf5e2e425ac
SHA512

20dc0f2ef11432cf63350b182f01c668d206a583473643932e4d2656f8f9f1932385bf14abed862e26ccb3f3919a703aeb562cea4d490cd877ed052d88c307f7
SSDEEP

24576:Wu6J33O0c+JY5UZ+XC0kGso6FaaXtJFq1IONEPmCFKzKMn8njT0CWY:4u0c++OCvkGs9Faa9vqmO0tE8YY

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
chisom6474

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/1504-5-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	eca512d5289783f13b346958c0bca5d9_JaffaCakes118.exe

Drops startup file 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PerceptionSimulationInput.url	eca512d5289783f13b346958c0bca5d9_JaffaCakes118.exe

Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2020 set thread context of 1504	2020	eca512d5289783f13b346958c0bca5d9_JaffaCakes118.exe	97

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eca512d5289783f13b346958c0bca5d9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3596	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1504	RegSvcs.exe
1504	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2020	eca512d5289783f13b346958c0bca5d9_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1504	RegSvcs.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2020	eca512d5289783f13b346958c0bca5d9_JaffaCakes118.exe
2020	eca512d5289783f13b346958c0bca5d9_JaffaCakes118.exe
2020	eca512d5289783f13b346958c0bca5d9_JaffaCakes118.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
2020	eca512d5289783f13b346958c0bca5d9_JaffaCakes118.exe
2020	eca512d5289783f13b346958c0bca5d9_JaffaCakes118.exe
2020	eca512d5289783f13b346958c0bca5d9_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1504	RegSvcs.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2020 wrote to memory of 1504	2020	eca512d5289783f13b346958c0bca5d9_JaffaCakes118.exe	97
PID 2020 wrote to memory of 1504	2020	eca512d5289783f13b346958c0bca5d9_JaffaCakes118.exe	97
PID 2020 wrote to memory of 1504	2020	eca512d5289783f13b346958c0bca5d9_JaffaCakes118.exe	97
PID 2020 wrote to memory of 1504	2020	eca512d5289783f13b346958c0bca5d9_JaffaCakes118.exe	97
PID 2020 wrote to memory of 3536	2020	eca512d5289783f13b346958c0bca5d9_JaffaCakes118.exe	98
PID 2020 wrote to memory of 3536	2020	eca512d5289783f13b346958c0bca5d9_JaffaCakes118.exe	98
PID 2020 wrote to memory of 3536	2020	eca512d5289783f13b346958c0bca5d9_JaffaCakes118.exe	98
PID 3536 wrote to memory of 3596	3536	cmd.exe	100
PID 3536 wrote to memory of 3596	3536	cmd.exe	100
PID 3536 wrote to memory of 3596	3536	cmd.exe	100

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\eca512d5289783f13b346958c0bca5d9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\eca512d5289783f13b346958c0bca5d9_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2020
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v4.0.30319\\\\RegSvcs.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:1504
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c TimeOut 1 & Del /F "C:\Users\Admin\AppData\Local\Temp\eca512d5289783f13b346958c0bca5d9_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3536
- - C:\Windows\SysWOW64\timeout.exe
    TimeOut 1
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3596

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4404,i,1330210614411927383,9239043499051775691,262144 --variations-seed-version --mojo-platform-channel-handle=1320 /prefetch:8
1⤵
PID:4200

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1504-9-0x0000000073DD0000-0x0000000074580000-memory.dmp

Filesize
7.7MB

Download
memory/1504-11-0x0000000005770000-0x0000000005788000-memory.dmp

Filesize
96KB

Download
memory/1504-5-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1504-6-0x0000000073DDE000-0x0000000073DDF000-memory.dmp

Filesize
4KB

Download
memory/1504-7-0x0000000005D60000-0x0000000006304000-memory.dmp

Filesize
5.6MB

Download
memory/1504-8-0x0000000005600000-0x0000000005692000-memory.dmp

Filesize
584KB

Download
memory/1504-17-0x0000000073DD0000-0x0000000074580000-memory.dmp

Filesize
7.7MB

Download
memory/1504-10-0x00000000057B0000-0x000000000584C000-memory.dmp

Filesize
624KB

Download
memory/1504-16-0x0000000073DD0000-0x0000000074580000-memory.dmp

Filesize
7.7MB

Download
memory/1504-12-0x0000000006310000-0x0000000006376000-memory.dmp

Filesize
408KB

Download
memory/1504-13-0x0000000073DDE000-0x0000000073DDF000-memory.dmp

Filesize
4KB

Download
memory/1504-14-0x0000000073DD0000-0x0000000074580000-memory.dmp

Filesize
7.7MB

Download
memory/1504-15-0x0000000006C40000-0x0000000006C4A000-memory.dmp

Filesize
40KB

Download
memory/2020-3-0x0000000003880000-0x000000000390E000-memory.dmp

Filesize
568KB

Download
memory/2020-4-0x00000000044B0000-0x000000000453E000-memory.dmp

Filesize
568KB

Download

Analysis

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