agenttesla | e11736f470654e19618c67d3a63e705bcfa9f854dd0345abb121992fb5019cf3

General

Target

f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe
Size

392KB
MD5

f720dc75b1260f81bf74e258b6793f6d
SHA1

b352d5ced8b1648f8448a116fe0ca59310a7c191
SHA256

e11736f470654e19618c67d3a63e705bcfa9f854dd0345abb121992fb5019cf3
SHA512

c64563e45efea99e3bc8b17c105a2a44b9965e156cab83f8cee4665cd5ef3adbfc88d87c4100446006b85ee4b8fa8a21385d555e03689d4720d4e3b6164edfdd
SSDEEP

12288:A7J6H3twmbZyw8nLWcn/TQTZKNY0oQghPDPM:A7J6SIwvT/290TghQ

Score

10^/10

agenttesla collection discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.ejazontheweb.com
Port:
587
Username:
[email protected]
Password:
t%[D2FmSeQezu,}e

Signatures

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

Contains code to disable Windows Defender 1 IoCs

A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

resource	yara_rule
behavioral2/memory/3084-8-0x0000000008020000-0x0000000008074000-memory.dmp	disable_win_def

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/1824-13-0x0000000000400000-0x000000000044C000-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-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f720dc75b1260f81bf74e258b6793f6d_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	f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3084 set thread context of 1824	3084	f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe	91

System Location Discovery: System Language Discovery 1 TTPs 2 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	f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1824	f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe
1824	f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1824	f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3084 wrote to memory of 1824	3084	f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe	91
PID 3084 wrote to memory of 1824	3084	f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe	91
PID 3084 wrote to memory of 1824	3084	f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe	91
PID 3084 wrote to memory of 1824	3084	f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe	91
PID 3084 wrote to memory of 1824	3084	f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe	91
PID 3084 wrote to memory of 1824	3084	f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe	91
PID 3084 wrote to memory of 1824	3084	f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe	91
PID 3084 wrote to memory of 1824	3084	f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe	91

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	f720dc75b1260f81bf74e258b6793f6d_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	f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3084
- C:\Users\Admin\AppData\Local\Temp\f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1824

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

2

T1552

Credentials In Files

2

T1552.001

Discovery

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\f720dc75b1260f81bf74e258b6793f6d_JaffaCakes118.exe.log

Filesize
1KB

MD5
e08f822522c617a40840c62e4b0fb45e

SHA1
ae516dca4da5234be6676d3f234c19ec55725be7

SHA256
bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7

SHA512
894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4

Download Submit
memory/1824-13-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1824-20-0x0000000075110000-0x00000000758C0000-memory.dmp

Filesize
7.7MB

Download
memory/1824-19-0x0000000005210000-0x0000000005228000-memory.dmp

Filesize
96KB

Download
memory/1824-18-0x0000000075110000-0x00000000758C0000-memory.dmp

Filesize
7.7MB

Download
memory/1824-16-0x0000000075110000-0x00000000758C0000-memory.dmp

Filesize
7.7MB

Download
memory/3084-5-0x0000000005200000-0x000000000520A000-memory.dmp

Filesize
40KB

Download
memory/3084-6-0x0000000007E10000-0x0000000007EAC000-memory.dmp

Filesize
624KB

Download
memory/3084-8-0x0000000008020000-0x0000000008074000-memory.dmp

Filesize
336KB

Download
memory/3084-9-0x000000007511E000-0x000000007511F000-memory.dmp

Filesize
4KB

Download
memory/3084-10-0x0000000075110000-0x00000000758C0000-memory.dmp

Filesize
7.7MB

Download
memory/3084-11-0x0000000008360000-0x00000000083C6000-memory.dmp

Filesize
408KB

Download
memory/3084-12-0x0000000008350000-0x000000000835A000-memory.dmp

Filesize
40KB

Download
memory/3084-7-0x0000000005750000-0x0000000005758000-memory.dmp

Filesize
32KB

Download
memory/3084-0-0x000000007511E000-0x000000007511F000-memory.dmp

Filesize
4KB

Download
memory/3084-4-0x0000000075110000-0x00000000758C0000-memory.dmp

Filesize
7.7MB

Download
memory/3084-17-0x0000000075110000-0x00000000758C0000-memory.dmp

Filesize
7.7MB

Download
memory/3084-3-0x0000000005270000-0x0000000005302000-memory.dmp

Filesize
584KB

Download
memory/3084-2-0x0000000005780000-0x0000000005D24000-memory.dmp

Filesize
5.6MB

Download
memory/3084-1-0x00000000007C0000-0x0000000000828000-memory.dmp

Filesize
416KB

Download

Analysis

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