agenttesla | e438d3d16690fe7c24844f8ebc7e2c5f66c2b24eb24b5d5f9afa9a863fa9d19d

General

Target

f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe
Size

421KB
MD5

f328c03b1a234cd496d4739451c089b4
SHA1

60c49936973632ecaa2610be0af0acae245ff506
SHA256

e438d3d16690fe7c24844f8ebc7e2c5f66c2b24eb24b5d5f9afa9a863fa9d19d
SHA512

cb7aaf3960e350398ea318c7166635db71bd88904703ea40b49f0eaedf22011967654941e5c7b31493bfd1ef8b564f354eb01d469525cbfa03a7e303dcee2454
SSDEEP

6144:B123RwvArzN90VZQ4vqmzJyGNS4wNZKEfy0alflQMLkpE/Gac5tg+Y0XmhyYOj:SwiMXjvq4yGswQ2mEnStg8XmhyYOj

Score

10^/10

agenttesla collection discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.purseyboucher.co.za
Port:
587
Username:
[email protected]
Password:
uqv0r8&;oo7i

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/1836-18-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe

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 3 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

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\Windows Update\\Windows Update.exe"	f328c03b1a234cd496d4739451c089b4_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
40	api.ipify.org
41	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4104 set thread context of 1836	4104	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	92

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 3 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	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3068	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4104	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe
1836	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe
1836	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4104	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe
Token: SeDebugPrivilege	1836	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1836	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4104 wrote to memory of 3068	4104	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	90
PID 4104 wrote to memory of 3068	4104	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	90
PID 4104 wrote to memory of 3068	4104	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	90
PID 4104 wrote to memory of 1836	4104	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	92
PID 4104 wrote to memory of 1836	4104	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	92
PID 4104 wrote to memory of 1836	4104	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	92
PID 4104 wrote to memory of 1836	4104	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	92
PID 4104 wrote to memory of 1836	4104	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	92
PID 4104 wrote to memory of 1836	4104	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	92
PID 4104 wrote to memory of 1836	4104	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	92
PID 4104 wrote to memory of 1836	4104	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	92

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4104
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uYQoItQWzz" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6889.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3068
- C:\Users\Admin\AppData\Local\Temp\f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:1836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

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

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe.log

Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6889.tmp

Filesize
1KB

MD5
8317162f15c8c8cd5f5d88f05a1c4e77

SHA1
bb8d906d9b241ec2716a35c3949a2911ba9da373

SHA256
2f8319de01d6db3ce065d7d947aa96559a85d2295f762f54a9afca96b92e8792

SHA512
803c2ded1de4cfa6a1f2277c28aba82a09720eb66c31356f88a0676a049224b9679a40b97c8192d0282aacaef0cee4bc3ce6bd07486fb91456914f4c6c5a64ac

Download Submit
C:\Users\Admin\AppData\Roaming\Windows Update\Windows Update.exe

Filesize
421KB

MD5
f328c03b1a234cd496d4739451c089b4

SHA1
60c49936973632ecaa2610be0af0acae245ff506

SHA256
e438d3d16690fe7c24844f8ebc7e2c5f66c2b24eb24b5d5f9afa9a863fa9d19d

SHA512
cb7aaf3960e350398ea318c7166635db71bd88904703ea40b49f0eaedf22011967654941e5c7b31493bfd1ef8b564f354eb01d469525cbfa03a7e303dcee2454

Download Submit
memory/1836-30-0x0000000006A70000-0x0000000006AC0000-memory.dmp

Filesize
320KB

Download
memory/1836-27-0x0000000074710000-0x0000000074EC0000-memory.dmp

Filesize
7.7MB

Download
memory/1836-26-0x0000000074710000-0x0000000074EC0000-memory.dmp

Filesize
7.7MB

Download
memory/1836-25-0x0000000005DB0000-0x0000000005E16000-memory.dmp

Filesize
408KB

Download
memory/1836-24-0x0000000004F20000-0x0000000004F38000-memory.dmp

Filesize
96KB

Download
memory/1836-23-0x0000000074710000-0x0000000074EC0000-memory.dmp

Filesize
7.7MB

Download
memory/1836-22-0x0000000074710000-0x0000000074EC0000-memory.dmp

Filesize
7.7MB

Download
memory/1836-18-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4104-5-0x0000000002FA0000-0x0000000002FAA000-memory.dmp

Filesize
40KB

Download
memory/4104-7-0x0000000007D10000-0x0000000007D66000-memory.dmp

Filesize
344KB

Download
memory/4104-11-0x0000000008830000-0x0000000008888000-memory.dmp

Filesize
352KB

Download
memory/4104-10-0x0000000074710000-0x0000000074EC0000-memory.dmp

Filesize
7.7MB

Download
memory/4104-9-0x000000007471E000-0x000000007471F000-memory.dmp

Filesize
4KB

Download
memory/4104-21-0x0000000074710000-0x0000000074EC0000-memory.dmp

Filesize
7.7MB

Download
memory/4104-8-0x0000000002FC0000-0x0000000002FCA000-memory.dmp

Filesize
40KB

Download
memory/4104-12-0x0000000008880000-0x00000000088BE000-memory.dmp

Filesize
248KB

Download
memory/4104-0-0x000000007471E000-0x000000007471F000-memory.dmp

Filesize
4KB

Download
memory/4104-6-0x0000000074710000-0x0000000074EC0000-memory.dmp

Filesize
7.7MB

Download
memory/4104-4-0x0000000007C70000-0x0000000007D02000-memory.dmp

Filesize
584KB

Download
memory/4104-3-0x0000000008180000-0x0000000008724000-memory.dmp

Filesize
5.6MB

Download
memory/4104-2-0x0000000007B30000-0x0000000007BCC000-memory.dmp

Filesize
624KB

Download
memory/4104-1-0x0000000000C80000-0x0000000000CF0000-memory.dmp

Filesize
448KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads