agenttesla | 373d7750fb5c6c9a20651b2267fa23840da0a288f62bed277ec1560ba1d7bab7

General

Target

fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe
Size

840KB
MD5

fed71b10b7e687e2a79d50d54432825c
SHA1

271748f737c25ccde7403c57afc342a41bf7de99
SHA256

373d7750fb5c6c9a20651b2267fa23840da0a288f62bed277ec1560ba1d7bab7
SHA512

4704650ad4f0037e48de4c3f455568f0c8d0b0b4bb4082a5dce764fee8f3f28ff7713bc6ab4ee6571362da9c07e26f63b272be7955e3ea40435187aac8db9219
SSDEEP

12288:NXm8Ag2J/HK7z0nAAXCnZd3LjKopJjVjmvKPLmSSthINfOlMg5PfR2bMl2g+3tm7:thAgDHAXCnvmO7zPLmSSoAln

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.meehsom.com
Port:
587
Username:
[email protected]
Password:
qUfwRVO4

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/1956-12-0x0000000000400000-0x000000000043C000-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	fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1772 set thread context of 1956	1772	fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.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	fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1956	fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe
1956	fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1956	fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1956	fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1772 wrote to memory of 1956	1772	fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe	99
PID 1772 wrote to memory of 1956	1772	fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe	99
PID 1772 wrote to memory of 1956	1772	fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe	99
PID 1772 wrote to memory of 1956	1772	fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe	99
PID 1772 wrote to memory of 1956	1772	fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe	99
PID 1772 wrote to memory of 1956	1772	fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe	99
PID 1772 wrote to memory of 1956	1772	fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe	99
PID 1772 wrote to memory of 1956	1772	fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe	99

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	fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.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	fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1772
- C:\Users\Admin\AppData\Local\Temp\fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:1956

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\fed71b10b7e687e2a79d50d54432825c_JaffaCakes118.exe.log

Filesize
1KB

MD5
84e77a587d94307c0ac1357eb4d3d46f

SHA1
83cc900f9401f43d181207d64c5adba7a85edc1e

SHA256
e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99

SHA512
aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691

Download Submit
memory/1772-10-0x0000000006790000-0x0000000006832000-memory.dmp

Filesize
648KB

Download
memory/1772-3-0x0000000004B90000-0x0000000004C22000-memory.dmp

Filesize
584KB

Download
memory/1772-11-0x0000000006590000-0x00000000065CC000-memory.dmp

Filesize
240KB

Download
memory/1772-4-0x0000000004C70000-0x0000000004D0C000-memory.dmp

Filesize
624KB

Download
memory/1772-5-0x0000000004B80000-0x0000000004B8A000-memory.dmp

Filesize
40KB

Download
memory/1772-6-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/1772-7-0x0000000004E00000-0x0000000004E16000-memory.dmp

Filesize
88KB

Download
memory/1772-8-0x0000000074B3E000-0x0000000074B3F000-memory.dmp

Filesize
4KB

Download
memory/1772-1-0x0000000000100000-0x00000000001D8000-memory.dmp

Filesize
864KB

Download
memory/1772-0-0x0000000074B3E000-0x0000000074B3F000-memory.dmp

Filesize
4KB

Download
memory/1772-16-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/1772-2-0x0000000005220000-0x00000000057C4000-memory.dmp

Filesize
5.6MB

Download
memory/1772-9-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/1956-15-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/1956-17-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/1956-23-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/1956-18-0x0000000005300000-0x0000000005318000-memory.dmp

Filesize
96KB

Download
memory/1956-19-0x0000000005F70000-0x0000000005FD6000-memory.dmp

Filesize
408KB

Download
memory/1956-20-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/1956-21-0x00000000062A0000-0x00000000062F0000-memory.dmp

Filesize
320KB

Download
memory/1956-22-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/1956-12-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download

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