agenttesla | 9ec0bfce36093b27ef26fc4cfb265541081bdd2bd6b140a8ceb5ce7c126c432f

General

Target

da65062d01358edbdfda7e0642b135b8_JaffaCakes118.exe
Size

574KB
MD5

da65062d01358edbdfda7e0642b135b8
SHA1

107850eb38c82af848622db6821ef95d51be6fe9
SHA256

9ec0bfce36093b27ef26fc4cfb265541081bdd2bd6b140a8ceb5ce7c126c432f
SHA512

b2e862b44094012351984e028fd4088bb8235bf360cfe04157d7ab3a5b9d78f742d186012a2c2c9e59759c28faecbd710ddd6d96a67228378d2ceff1c724a0e1
SSDEEP

6144:x7M1KWv3ZoBdO1eLpsDnM5zAOdaIR5PlTt8bbOugEEnRUkd6jX2JPxcYEUO:x7M1KY3mICzrPlpnUAPxc2

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.ru
Port:
587
Username:
[email protected]
Password:
Blessed000@

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/3580-21-0x0000000000400000-0x000000000044C000-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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	da65062d01358edbdfda7e0642b135b8_JaffaCakes118.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\asapa.lnk	asapa.exe

Executes dropped EXE 1 IoCs

pid	Process
3504	asapa.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-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe
Key opened	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3504 set thread context of 3580	3504	asapa.exe	100

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 5 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	da65062d01358edbdfda7e0642b135b8_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asapa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3580	InstallUtil.exe
3580	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4788	da65062d01358edbdfda7e0642b135b8_JaffaCakes118.exe
Token: SeDebugPrivilege	3504	asapa.exe
Token: SeDebugPrivilege	3580	InstallUtil.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3580	InstallUtil.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4788 wrote to memory of 1056	4788	da65062d01358edbdfda7e0642b135b8_JaffaCakes118.exe	95
PID 4788 wrote to memory of 1056	4788	da65062d01358edbdfda7e0642b135b8_JaffaCakes118.exe	95
PID 4788 wrote to memory of 1056	4788	da65062d01358edbdfda7e0642b135b8_JaffaCakes118.exe	95
PID 4788 wrote to memory of 1192	4788	da65062d01358edbdfda7e0642b135b8_JaffaCakes118.exe	97
PID 4788 wrote to memory of 1192	4788	da65062d01358edbdfda7e0642b135b8_JaffaCakes118.exe	97
PID 4788 wrote to memory of 1192	4788	da65062d01358edbdfda7e0642b135b8_JaffaCakes118.exe	97
PID 1192 wrote to memory of 3504	1192	cmd.exe	99
PID 1192 wrote to memory of 3504	1192	cmd.exe	99
PID 1192 wrote to memory of 3504	1192	cmd.exe	99
PID 3504 wrote to memory of 3580	3504	asapa.exe	100
PID 3504 wrote to memory of 3580	3504	asapa.exe	100
PID 3504 wrote to memory of 3580	3504	asapa.exe	100
PID 3504 wrote to memory of 3580	3504	asapa.exe	100
PID 3504 wrote to memory of 3580	3504	asapa.exe	100
PID 3504 wrote to memory of 3580	3504	asapa.exe	100
PID 3504 wrote to memory of 3580	3504	asapa.exe	100
PID 3504 wrote to memory of 3580	3504	asapa.exe	100

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\da65062d01358edbdfda7e0642b135b8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\da65062d01358edbdfda7e0642b135b8_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4788
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\da65062d01358edbdfda7e0642b135b8_JaffaCakes118.exe" "C:\Users\Admin\AppData\Roaming\asapa.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1056
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c, "C:\Users\Admin\AppData\Roaming\asapa.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1192
- - C:\Users\Admin\AppData\Roaming\asapa.exe
    "C:\Users\Admin\AppData\Roaming\asapa.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3504
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
      4⤵
      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:3580

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

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Downloads

C:\Users\Admin\AppData\Roaming\asapa.exe

Filesize
574KB

MD5
da65062d01358edbdfda7e0642b135b8

SHA1
107850eb38c82af848622db6821ef95d51be6fe9

SHA256
9ec0bfce36093b27ef26fc4cfb265541081bdd2bd6b140a8ceb5ce7c126c432f

SHA512
b2e862b44094012351984e028fd4088bb8235bf360cfe04157d7ab3a5b9d78f742d186012a2c2c9e59759c28faecbd710ddd6d96a67228378d2ceff1c724a0e1

Download Submit
memory/3504-24-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/3504-22-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/3504-19-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/3504-18-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/3504-17-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/3580-27-0x0000000006F30000-0x0000000006F3A000-memory.dmp

Filesize
40KB

Download
memory/3580-26-0x00000000058D0000-0x00000000058E8000-memory.dmp

Filesize
96KB

Download
memory/3580-25-0x00000000059B0000-0x0000000005A4C000-memory.dmp

Filesize
624KB

Download
memory/3580-21-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4788-5-0x0000000004D30000-0x0000000004D74000-memory.dmp

Filesize
272KB

Download
memory/4788-13-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/4788-9-0x0000000005920000-0x0000000005986000-memory.dmp

Filesize
408KB

Download
memory/4788-8-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/4788-7-0x000000007487E000-0x000000007487F000-memory.dmp

Filesize
4KB

Download
memory/4788-6-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/4788-0-0x000000007487E000-0x000000007487F000-memory.dmp

Filesize
4KB

Download
memory/4788-4-0x0000000005290000-0x0000000005834000-memory.dmp

Filesize
5.6MB

Download
memory/4788-3-0x0000000004C30000-0x0000000004CC2000-memory.dmp

Filesize
584KB

Download
memory/4788-2-0x0000000002790000-0x00000000027A8000-memory.dmp

Filesize
96KB

Download
memory/4788-1-0x0000000000170000-0x0000000000206000-memory.dmp

Filesize
600KB

Download

Analysis

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