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 5 IoCs

resource	yara_rule
behavioral1/memory/2824-25-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2824-23-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2824-21-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2824-18-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral1/memory/2824-17-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\15.0\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-1-5-21-3290804112-2823094203-3137964600-1000\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
2	api.ipify.org
3	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2224 set thread context of 2824	2224	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	32

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.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
2604	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2824	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe
2824	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe
2824	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe
2824	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2824	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2824	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 2604	2224	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	30
PID 2224 wrote to memory of 2604	2224	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	30
PID 2224 wrote to memory of 2604	2224	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	30
PID 2224 wrote to memory of 2604	2224	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	30
PID 2224 wrote to memory of 2824	2224	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	32
PID 2224 wrote to memory of 2824	2224	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	32
PID 2224 wrote to memory of 2824	2224	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	32
PID 2224 wrote to memory of 2824	2224	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	32
PID 2224 wrote to memory of 2824	2224	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	32
PID 2224 wrote to memory of 2824	2224	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	32
PID 2224 wrote to memory of 2824	2224	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	32
PID 2224 wrote to memory of 2824	2224	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	32
PID 2224 wrote to memory of 2824	2224	f328c03b1a234cd496d4739451c089b4_JaffaCakes118.exe	32

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\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-1-5-21-3290804112-2823094203-3137964600-1000\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⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uYQoItQWzz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCE28.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2604
- 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:2824

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

System Information Discovery

1

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\Temp\tmpCE28.tmp

Filesize
1KB

MD5
db342e1c99271d61ced0fa3c09fa0a5e

SHA1
337ce04770a144cdb37333f722736e5c6ca8bbfd

SHA256
e148434952f27e4735c91987f724a3a6469616c011e2856429d2f37179baa410

SHA512
5498698c32368037abc2717fbfae3173b5193e8acf2139b648100accca746cec93f8715db8e5be9715c67fa2e308b7012ef503b9d257cd24ba84efb143a6e40b

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/2224-27-0x0000000074BE0000-0x00000000752CE000-memory.dmp

Filesize
6.9MB

Download
memory/2224-1-0x0000000000120000-0x0000000000190000-memory.dmp

Filesize
448KB

Download
memory/2224-2-0x0000000074BE0000-0x00000000752CE000-memory.dmp

Filesize
6.9MB

Download
memory/2224-3-0x0000000000390000-0x000000000039A000-memory.dmp

Filesize
40KB

Download
memory/2224-4-0x0000000074BEE000-0x0000000074BEF000-memory.dmp

Filesize
4KB

Download
memory/2224-5-0x0000000074BE0000-0x00000000752CE000-memory.dmp

Filesize
6.9MB

Download
memory/2224-6-0x0000000004160000-0x00000000041B8000-memory.dmp

Filesize
352KB

Download
memory/2224-7-0x00000000041C0000-0x00000000041FE000-memory.dmp

Filesize
248KB

Download
memory/2224-0-0x0000000074BEE000-0x0000000074BEF000-memory.dmp

Filesize
4KB

Download
memory/2824-25-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2824-21-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2824-26-0x0000000074BE0000-0x00000000752CE000-memory.dmp

Filesize
6.9MB

Download
memory/2824-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2824-18-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2824-17-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2824-15-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2824-23-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2824-28-0x0000000074BE0000-0x00000000752CE000-memory.dmp

Filesize
6.9MB

Download
memory/2824-29-0x0000000074BE0000-0x00000000752CE000-memory.dmp

Filesize
6.9MB

Download
memory/2824-30-0x0000000074BE0000-0x00000000752CE000-memory.dmp

Filesize
6.9MB

Download
memory/2824-13-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads