agenttesla | 4da9cdaabab199c810cad207fe4dd792068eb0993f3a26a73c0a9bfb19f9831c

General

Target

JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe
Size

520KB
MD5

a91eb16dec4963d0b7198e9bb1b3d379
SHA1

c037fe12d74cdb7bc82b338a3babd35aa11c1b57
SHA256

4da9cdaabab199c810cad207fe4dd792068eb0993f3a26a73c0a9bfb19f9831c
SHA512

09a9a53ba5b2a7ee1d1074353c1e64ff50b8dab1aa3e8fbf4baf0326e0a0e2a2306c2ce9d4546693ae58a2a5278df94d0d877bf04fc024b6091af5483447d881
SSDEEP

12288:UcMhUi2iNbL+UC5n8DreYwiAecqVokngG:UcMhUi1l05n8mcHc7k

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.scahe.co.in
Port:
587
Username:
[email protected]
Password:
scaheavy@12345

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/1460-11-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe

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 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
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

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-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4996 set thread context of 1460	4996	JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe	99

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	JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1460	JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe
1460	JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1460	JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4996 wrote to memory of 1460	4996	JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe	99
PID 4996 wrote to memory of 1460	4996	JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe	99
PID 4996 wrote to memory of 1460	4996	JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe	99
PID 4996 wrote to memory of 1460	4996	JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe	99
PID 4996 wrote to memory of 1460	4996	JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe	99
PID 4996 wrote to memory of 1460	4996	JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe	99
PID 4996 wrote to memory of 1460	4996	JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe	99
PID 4996 wrote to memory of 1460	4996	JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe	99

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4996
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a91eb16dec4963d0b7198e9bb1b3d379.exe"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1460

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

5

T1552

Credentials In Files

4

T1552.001

Credentials in Registry

1

T1552.002

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

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Downloads

memory/1460-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1460-23-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/1460-22-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/1460-21-0x00000000063A0000-0x00000000063F0000-memory.dmp

Filesize
320KB

Download
memory/1460-19-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/1460-18-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/1460-17-0x0000000005F70000-0x0000000005FD6000-memory.dmp

Filesize
408KB

Download
memory/1460-16-0x00000000056D0000-0x00000000056E8000-memory.dmp

Filesize
96KB

Download
memory/1460-15-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/1460-13-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/4996-5-0x00000000058F0000-0x00000000058FA000-memory.dmp

Filesize
40KB

Download
memory/4996-10-0x0000000006970000-0x00000000069D0000-memory.dmp

Filesize
384KB

Download
memory/4996-9-0x0000000006710000-0x00000000067AC000-memory.dmp

Filesize
624KB

Download
memory/4996-14-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/4996-8-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/4996-7-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

Filesize
4KB

Download
memory/4996-6-0x0000000005920000-0x000000000592E000-memory.dmp

Filesize
56KB

Download
memory/4996-0-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

Filesize
4KB

Download
memory/4996-4-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/4996-3-0x0000000005930000-0x00000000059C2000-memory.dmp

Filesize
584KB

Download
memory/4996-2-0x0000000005E40000-0x00000000063E4000-memory.dmp

Filesize
5.6MB

Download
memory/4996-1-0x0000000000EA0000-0x0000000000F28000-memory.dmp

Filesize
544KB

Download

Analysis

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