agenttesla | 6e551b257be7e07fed234938b8c6eb1c23f3024edcdf692a589372bcb6a27a26

General

Target

fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe
Size

1.0MB
MD5

fdc0a5d6d8e2737403a99c8e6d571811
SHA1

d42ee30a741ee57d7b4db4cb72e03ac93616f019
SHA256

6e551b257be7e07fed234938b8c6eb1c23f3024edcdf692a589372bcb6a27a26
SHA512

dcf2623fd6ebbba30676b0154aa5d51afb4a418fb44d17a607cda9ff52f60a4845b01d1d13f4e29a9b598154e694620b7989c7e19868b77b5a14fe85fc9d98b5
SSDEEP

12288:vfO9TWEilzB5AFOaT+DtHy8nfcIAPWx2k6YYy6Ft8e26iQ2:vfwTW/tBaJUkIFxN6F/2g2

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.brimaq.com
Port:
587
Username:
[email protected]
Password:
brimaQ2012
Email To:
[email protected]

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/2792-13-0x0000000000400000-0x000000000043C000-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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2420 set thread context of 2792	2420	fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe	101

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2792	fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe
2792	fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe
2792	fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2792	fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 2792	2420	fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe	101
PID 2420 wrote to memory of 2792	2420	fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe	101
PID 2420 wrote to memory of 2792	2420	fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe	101
PID 2420 wrote to memory of 2792	2420	fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe	101
PID 2420 wrote to memory of 2792	2420	fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe	101
PID 2420 wrote to memory of 2792	2420	fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe	101
PID 2420 wrote to memory of 2792	2420	fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe	101
PID 2420 wrote to memory of 2792	2420	fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe	101

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Users\Admin\AppData\Local\Temp\fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2792

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\fdc0a5d6d8e2737403a99c8e6d571811_JaffaCakes118.exe.log

Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
memory/2420-12-0x00000000077E0000-0x000000000781C000-memory.dmp

Filesize
240KB

Download
memory/2420-9-0x0000000074FB0000-0x0000000075760000-memory.dmp

Filesize
7.7MB

Download
memory/2420-3-0x0000000005330000-0x00000000058D4000-memory.dmp

Filesize
5.6MB

Download
memory/2420-4-0x0000000004E20000-0x0000000004EB2000-memory.dmp

Filesize
584KB

Download
memory/2420-5-0x0000000004F70000-0x0000000004F80000-memory.dmp

Filesize
64KB

Download
memory/2420-6-0x0000000004D50000-0x0000000004D5A000-memory.dmp

Filesize
40KB

Download
memory/2420-7-0x0000000004EC0000-0x0000000004F16000-memory.dmp

Filesize
344KB

Download
memory/2420-16-0x0000000074FB0000-0x0000000075760000-memory.dmp

Filesize
7.7MB

Download
memory/2420-0-0x0000000000200000-0x0000000000306000-memory.dmp

Filesize
1.0MB

Download
memory/2420-10-0x0000000004F70000-0x0000000004F80000-memory.dmp

Filesize
64KB

Download
memory/2420-2-0x0000000004C80000-0x0000000004D1C000-memory.dmp

Filesize
624KB

Download
memory/2420-11-0x0000000007A20000-0x0000000007AC0000-memory.dmp

Filesize
640KB

Download
memory/2420-8-0x00000000026C0000-0x00000000026DE000-memory.dmp

Filesize
120KB

Download
memory/2420-1-0x0000000074FB0000-0x0000000075760000-memory.dmp

Filesize
7.7MB

Download
memory/2792-13-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2792-17-0x0000000074FB0000-0x0000000075760000-memory.dmp

Filesize
7.7MB

Download
memory/2792-18-0x0000000005B70000-0x0000000005B80000-memory.dmp

Filesize
64KB

Download
memory/2792-19-0x0000000005A60000-0x0000000005A78000-memory.dmp

Filesize
96KB

Download
memory/2792-20-0x0000000005FE0000-0x0000000006046000-memory.dmp

Filesize
408KB

Download
memory/2792-21-0x0000000074FB0000-0x0000000075760000-memory.dmp

Filesize
7.7MB

Download
memory/2792-22-0x0000000005B70000-0x0000000005B80000-memory.dmp

Filesize
64KB

Download
memory/2792-23-0x0000000003260000-0x00000000032B0000-memory.dmp

Filesize
320KB

Download
memory/2792-24-0x0000000005B70000-0x0000000005B80000-memory.dmp

Filesize
64KB

Download

Analysis

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