agenttesla | 0438b9fd849f4116d4c8d21fcebf1eebc23d7e92553ef1c2d8bf3ab7846efb17

General

Target

JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe
Size

530KB
MD5

b30d3ec99edbf715c40688d1c74ea4b6
SHA1

88ba4406b6e93154ded0c6f6c684177c75eface5
SHA256

0438b9fd849f4116d4c8d21fcebf1eebc23d7e92553ef1c2d8bf3ab7846efb17
SHA512

686b155b4a0788a4351d0a1297847431cc41049c8cf6705afdd2803e565faca6ba4f30104c8d57036d12e9775c85781a41ad9cf2336f9099849a9deb7f7b7936
SSDEEP

12288:30lXKEVPcGlla0Yi7ukUSh4to2+RYs++5QO0Z3G+6Y:30l6ETlJ5ukv4tl+RYs75zU6

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
C%)%GWZe9

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/220-11-0x0000000000400000-0x000000000043C000-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 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-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4668 set thread context of 220	4668	JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe	98

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_b30d3ec99edbf715c40688d1c74ea4b6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
220	JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe
220	JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	220	JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4668 wrote to memory of 220	4668	JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe	98
PID 4668 wrote to memory of 220	4668	JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe	98
PID 4668 wrote to memory of 220	4668	JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe	98
PID 4668 wrote to memory of 220	4668	JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe	98
PID 4668 wrote to memory of 220	4668	JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe	98
PID 4668 wrote to memory of 220	4668	JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe	98
PID 4668 wrote to memory of 220	4668	JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe	98
PID 4668 wrote to memory of 220	4668	JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe	98

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4668
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.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:220

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\JaffaCakes118_b30d3ec99edbf715c40688d1c74ea4b6.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/220-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/220-23-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/220-22-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/220-21-0x0000000006890000-0x00000000068E0000-memory.dmp

Filesize
320KB

Download
memory/220-20-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/220-19-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/220-18-0x00000000058D0000-0x0000000005936000-memory.dmp

Filesize
408KB

Download
memory/220-17-0x0000000005570000-0x0000000005588000-memory.dmp

Filesize
96KB

Download
memory/220-16-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/220-14-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/4668-5-0x0000000004B80000-0x0000000004B8A000-memory.dmp

Filesize
40KB

Download
memory/4668-10-0x0000000008BE0000-0x0000000008C40000-memory.dmp

Filesize
384KB

Download
memory/4668-9-0x0000000008B40000-0x0000000008BDC000-memory.dmp

Filesize
624KB

Download
memory/4668-15-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/4668-8-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/4668-7-0x000000007496E000-0x000000007496F000-memory.dmp

Filesize
4KB

Download
memory/4668-6-0x0000000007A10000-0x0000000007A1E000-memory.dmp

Filesize
56KB

Download
memory/4668-0-0x000000007496E000-0x000000007496F000-memory.dmp

Filesize
4KB

Download
memory/4668-4-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/4668-3-0x00000000075A0000-0x0000000007632000-memory.dmp

Filesize
584KB

Download
memory/4668-2-0x0000000007A70000-0x0000000008014000-memory.dmp

Filesize
5.6MB

Download
memory/4668-1-0x00000000006A0000-0x000000000072A000-memory.dmp

Filesize
552KB

Download

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