agenttesla | 3a8afa181b83a479c7c476791061dd4a7df56a59e21bcb72f0c8a32d76b66d5b

General

Target

25aa5c161b49e6cbfcc437c0cd8ca0cb_JaffaCakes118.exe
Size

687KB
MD5

25aa5c161b49e6cbfcc437c0cd8ca0cb
SHA1

bb53aba96b5626a8fe06901d1624e2f39988db6c
SHA256

3a8afa181b83a479c7c476791061dd4a7df56a59e21bcb72f0c8a32d76b66d5b
SHA512

db1645a233f765fe284642fb9315cf1a25d5a2fe878dd02fd18545df9ae9483b646042f74e27b6f66e6d5a02ddc5773a7b972df3ac31421b4f6f4b6b7b50f45d
SSDEEP

12288:W1oc0zzQX0rjJGVl747Rv55RxPiNC3C0Zm+YlgIipEO8v:2v0YX0rk87XbV/nm+YlgGZ

Score

10^/10

agenttesla collection keylogger spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
nc$jcXy8

Signatures

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

AgentTesla payload 7 IoCs

resource	yara_rule
behavioral1/memory/2228-13-0x00000000002D0000-0x000000000030C000-memory.dmp	family_agenttesla
behavioral1/memory/2228-12-0x00000000002D0000-0x000000000030C000-memory.dmp	family_agenttesla
behavioral1/memory/2228-11-0x0000000000400000-0x0000000000485000-memory.dmp	family_agenttesla
behavioral1/memory/2228-10-0x0000000000400000-0x0000000000485000-memory.dmp	family_agenttesla
behavioral1/memory/2228-9-0x0000000000400000-0x0000000000485000-memory.dmp	family_agenttesla
behavioral1/memory/2228-24-0x0000000000400000-0x0000000000485000-memory.dmp	family_agenttesla
behavioral1/memory/2228-25-0x0000000000400000-0x0000000000485000-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

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2228-6-0x0000000000400000-0x0000000000485000-memory.dmp	upx
behavioral1/memory/2228-11-0x0000000000400000-0x0000000000485000-memory.dmp	upx
behavioral1/memory/2228-10-0x0000000000400000-0x0000000000485000-memory.dmp	upx
behavioral1/memory/2228-9-0x0000000000400000-0x0000000000485000-memory.dmp	upx
behavioral1/memory/2228-8-0x0000000000400000-0x0000000000485000-memory.dmp	upx

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	25aa5c161b49e6cbfcc437c0cd8ca0cb_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	25aa5c161b49e6cbfcc437c0cd8ca0cb_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	25aa5c161b49e6cbfcc437c0cd8ca0cb_JaffaCakes118.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1900 set thread context of 2228	1900	25aa5c161b49e6cbfcc437c0cd8ca0cb_JaffaCakes118.exe	28

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1900	25aa5c161b49e6cbfcc437c0cd8ca0cb_JaffaCakes118.exe
2228	25aa5c161b49e6cbfcc437c0cd8ca0cb_JaffaCakes118.exe
2228	25aa5c161b49e6cbfcc437c0cd8ca0cb_JaffaCakes118.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1900	25aa5c161b49e6cbfcc437c0cd8ca0cb_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2228	25aa5c161b49e6cbfcc437c0cd8ca0cb_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1900 wrote to memory of 2228	1900	25aa5c161b49e6cbfcc437c0cd8ca0cb_JaffaCakes118.exe	28
PID 1900 wrote to memory of 2228	1900	25aa5c161b49e6cbfcc437c0cd8ca0cb_JaffaCakes118.exe	28
PID 1900 wrote to memory of 2228	1900	25aa5c161b49e6cbfcc437c0cd8ca0cb_JaffaCakes118.exe	28
PID 1900 wrote to memory of 2228	1900	25aa5c161b49e6cbfcc437c0cd8ca0cb_JaffaCakes118.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	25aa5c161b49e6cbfcc437c0cd8ca0cb_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	25aa5c161b49e6cbfcc437c0cd8ca0cb_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\25aa5c161b49e6cbfcc437c0cd8ca0cb_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\25aa5c161b49e6cbfcc437c0cd8ca0cb_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1900
- C:\Users\Admin\AppData\Local\Temp\25aa5c161b49e6cbfcc437c0cd8ca0cb_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\25aa5c161b49e6cbfcc437c0cd8ca0cb_JaffaCakes118.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2228

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

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1900-0-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/1900-2-0x0000000001DB0000-0x0000000001DBF000-memory.dmp

Filesize
60KB

Download
memory/1900-3-0x0000000001DD0000-0x0000000001DD1000-memory.dmp

Filesize
4KB

Download
memory/1900-5-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/1900-1-0x0000000001DB0000-0x0000000001DBF000-memory.dmp

Filesize
60KB

Download
memory/2228-12-0x00000000002D0000-0x000000000030C000-memory.dmp

Filesize
240KB

Download
memory/2228-13-0x00000000002D0000-0x000000000030C000-memory.dmp

Filesize
240KB

Download
memory/2228-11-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2228-10-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2228-9-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2228-8-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2228-6-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2228-24-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download
memory/2228-25-0x0000000000400000-0x0000000000485000-memory.dmp

Filesize
532KB

Download

Analysis

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