agenttesla | 797e3b6340944e90b13c25b3c1c44427bfe5649bc8edfa2a23e3030331a0d2fa

General

Target

f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe
Size

512KB
MD5

f4fae8a41714f7aa38d04f98da78b23b
SHA1

53de3e817137733e3f8820e8b566e3cc83c334e2
SHA256

797e3b6340944e90b13c25b3c1c44427bfe5649bc8edfa2a23e3030331a0d2fa
SHA512

0c369e7b47a4e61ded546a151f1244e2aa7a68073183f6632d27c3e2441d3e966ea31916c1381104cde8536e2a5b225b91a75ee5e15a65d6b95ad7bf6d85a3b8
SSDEEP

6144:7Hd0/DOmnhSQ+3HwOcc0WQ0z/oDjYdWqLMVwOvI+91GVp5hT8aDZR2QSpfxDFVyO:Wzocc0WQg/oDjvVwOvRG74+kDPuryX

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.jkdb.com.sg
Port:
587
Username:
[email protected]
Password:
ikoh08ju11lee1976

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/4252-11-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	f4fae8a41714f7aa38d04f98da78b23b_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 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-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe"	f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1520 set thread context of 4252	1520	f4fae8a41714f7aa38d04f98da78b23b_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	f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4252	f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe
4252	f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4252	f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1520 wrote to memory of 4252	1520	f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe	91
PID 1520 wrote to memory of 4252	1520	f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe	91
PID 1520 wrote to memory of 4252	1520	f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe	91
PID 1520 wrote to memory of 4252	1520	f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe	91
PID 1520 wrote to memory of 4252	1520	f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe	91
PID 1520 wrote to memory of 4252	1520	f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe	91
PID 1520 wrote to memory of 4252	1520	f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe	91
PID 1520 wrote to memory of 4252	1520	f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1520
- C:\Users\Admin\AppData\Local\Temp\f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe"
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4252

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

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\f4fae8a41714f7aa38d04f98da78b23b_JaffaCakes118.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/1520-10-0x0000000007C90000-0x0000000007CF2000-memory.dmp

Filesize
392KB

Download
memory/1520-3-0x00000000055D0000-0x0000000005662000-memory.dmp

Filesize
584KB

Download
memory/1520-1-0x0000000000BB0000-0x0000000000C36000-memory.dmp

Filesize
536KB

Download
memory/1520-4-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/1520-5-0x00000000056B0000-0x00000000056BA000-memory.dmp

Filesize
40KB

Download
memory/1520-6-0x0000000007890000-0x000000000792C000-memory.dmp

Filesize
624KB

Download
memory/1520-7-0x00000000058A0000-0x00000000058B2000-memory.dmp

Filesize
72KB

Download
memory/1520-8-0x0000000074B2E000-0x0000000074B2F000-memory.dmp

Filesize
4KB

Download
memory/1520-15-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/1520-0-0x0000000074B2E000-0x0000000074B2F000-memory.dmp

Filesize
4KB

Download
memory/1520-9-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/1520-2-0x0000000005C30000-0x00000000061D4000-memory.dmp

Filesize
5.6MB

Download
memory/4252-25-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/4252-14-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/4252-16-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/4252-17-0x0000000005320000-0x0000000005338000-memory.dmp

Filesize
96KB

Download
memory/4252-18-0x0000000005C80000-0x0000000005CE6000-memory.dmp

Filesize
408KB

Download
memory/4252-19-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/4252-20-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/4252-23-0x0000000006240000-0x0000000006290000-memory.dmp

Filesize
320KB

Download
memory/4252-24-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/4252-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads