agenttesla | d6a5d01edf06c2812aec143d767d5ed3a18ca7386a7470f9e7c8d08e49b0c366

General

Target

e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe
Size

348KB
MD5

e9a9ba0db77539c55bce8f85bca240a0
SHA1

084206e4edefd6589f4debf904697b0924b2a76a
SHA256

d6a5d01edf06c2812aec143d767d5ed3a18ca7386a7470f9e7c8d08e49b0c366
SHA512

b814610733f42f8312c66d155c9f23f1d95a79ae6ac221047535254bcf55eb543cedf1b528670a4aa0cff64b713702af81a1ea1a2d151a4945c62cf91bc58997
SSDEEP

6144:Wfw5rf3oNO0zTFK6rtjc+eRIQ16Q79rkqvtJSWx0IQ:yO4xoyeRJ16O9rkmtVx0IQ

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.microtop-jp.com
Port:
587
Username:
[email protected]
Password:
HirONori0504
Email To:
[email protected]

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/3116-14-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.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 2 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
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-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3560 set thread context of 3116	3560	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe	93

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	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e9a9ba0db77539c55bce8f85bca240a0_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
2660	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3560	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe
3116	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe
3116	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3560	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe
Token: SeDebugPrivilege	3116	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3116	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3560 wrote to memory of 2660	3560	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe	91
PID 3560 wrote to memory of 2660	3560	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe	91
PID 3560 wrote to memory of 2660	3560	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe	91
PID 3560 wrote to memory of 3116	3560	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe	93
PID 3560 wrote to memory of 3116	3560	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe	93
PID 3560 wrote to memory of 3116	3560	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe	93
PID 3560 wrote to memory of 3116	3560	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe	93
PID 3560 wrote to memory of 3116	3560	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe	93
PID 3560 wrote to memory of 3116	3560	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe	93
PID 3560 wrote to memory of 3116	3560	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe	93
PID 3560 wrote to memory of 3116	3560	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe	93

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3560
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gczwmkkoB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp38ED.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2660
- C:\Users\Admin\AppData\Local\Temp\e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe
  "{path}"
  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:3116

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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

Query Registry

1

T1012

System Information Discovery

2

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\Microsoft\CLR_v4.0_32\UsageLogs\e9a9ba0db77539c55bce8f85bca240a0_JaffaCakes118.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp38ED.tmp

Filesize
1KB

MD5
43bff0aebf65ac8ab106f8f85c26f70e

SHA1
7ffad649666071e626684cc4227a01122054cf6c

SHA256
7de181e947f45d500b0037cb7c764d9421b9f6a44e0bd1a4688011bd6a207efe

SHA512
a6e3ae78eef20fc4a7053d874abbe903ff8b269bf1bc82abc40a2520d4a6554c5d336acc56c61b82c6f7fa808328cf6f5e3fdb71980bdcb8fd275445a79154c0

Download Submit
memory/3116-21-0x00000000060C0000-0x0000000006126000-memory.dmp

Filesize
408KB

Download
memory/3116-26-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/3116-14-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3116-25-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/3116-24-0x0000000006630000-0x0000000006680000-memory.dmp

Filesize
320KB

Download
memory/3116-23-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/3116-22-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/3116-20-0x0000000005810000-0x0000000005828000-memory.dmp

Filesize
96KB

Download
memory/3116-17-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/3116-19-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/3560-4-0x00000000049B0000-0x00000000049BA000-memory.dmp

Filesize
40KB

Download
memory/3560-3-0x00000000049E0000-0x0000000004A72000-memory.dmp

Filesize
584KB

Download
memory/3560-10-0x00000000061F0000-0x0000000006256000-memory.dmp

Filesize
408KB

Download
memory/3560-18-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/3560-2-0x0000000004EF0000-0x0000000005494000-memory.dmp

Filesize
5.6MB

Download
memory/3560-9-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/3560-0-0x0000000074D8E000-0x0000000074D8F000-memory.dmp

Filesize
4KB

Download
memory/3560-8-0x0000000074D8E000-0x0000000074D8F000-memory.dmp

Filesize
4KB

Download
memory/3560-7-0x00000000060B0000-0x000000000614C000-memory.dmp

Filesize
624KB

Download
memory/3560-6-0x0000000004B20000-0x0000000004B28000-memory.dmp

Filesize
32KB

Download
memory/3560-5-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/3560-1-0x00000000000C0000-0x000000000011C000-memory.dmp

Filesize
368KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads