agenttesla | e17b4c0fcc016cf6a30e77b46d4db823f9fe125e8cba464c0832f4ee45f60f1e

General

Target

31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe
Size

1.5MB
MD5

31ad987e718ec12c36ca85124ebf2c92
SHA1

31ba440b4046b46c3d47c9f35932c7c0f3112e9e
SHA256

e17b4c0fcc016cf6a30e77b46d4db823f9fe125e8cba464c0832f4ee45f60f1e
SHA512

5b59d966f11b72f3694e2c063b86a82acc450d1839ba0e19598cd88c674b322eba1e24cfe45b67218f28f9f842cb87c4e5cbef0e96f0ad2b7e1bb05681178a9e
SSDEEP

12288:GgKjtZiBrqvSmU9bUZR6NwwHqeRnE2mB1/575jzed+0OK4siChMNQ6H+Uy1SusrT:gZvvSLyZaz6h7xqd5jhMyZZS5R0

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1778626105:AAG38Q3BQPdUlhSAj_Thbl-k6rCDNlXEi28/sendDocument

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/3832-17-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe

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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	31ad987e718ec12c36ca85124ebf2c92_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-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4784 set thread context of 3832	4784	31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe	92

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	31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	31ad987e718ec12c36ca85124ebf2c92_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
2164	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3832	31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe
3832	31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3832	31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4784 wrote to memory of 2164	4784	31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe	90
PID 4784 wrote to memory of 2164	4784	31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe	90
PID 4784 wrote to memory of 2164	4784	31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe	90
PID 4784 wrote to memory of 3832	4784	31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe	92
PID 4784 wrote to memory of 3832	4784	31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe	92
PID 4784 wrote to memory of 3832	4784	31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe	92
PID 4784 wrote to memory of 3832	4784	31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe	92
PID 4784 wrote to memory of 3832	4784	31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe	92
PID 4784 wrote to memory of 3832	4784	31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe	92
PID 4784 wrote to memory of 3832	4784	31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe	92
PID 4784 wrote to memory of 3832	4784	31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe	92

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4784
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JUfxsRe" /XML "C:\Users\Admin\AppData\Local\Temp\tmp460D.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2164
- C:\Users\Admin\AppData\Local\Temp\31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.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:3832

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\31ad987e718ec12c36ca85124ebf2c92_JaffaCakes118.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp460D.tmp

Filesize
1KB

MD5
1a6d446f501e40c3047108f4022821b9

SHA1
0647bd1dca5b4fb2319d2af3851bba1ca4e03525

SHA256
b6fdd041efdead6e144d01c3059c008753e7c5b80099b48b2f18609e37dbf20c

SHA512
608aada147bd11c287de3907d3ba220318394f591776b373163d2002532ef1ec92dbb522d03ac5e03cc1ff9599ba572659038a5f61d45ee955a9b7dfbbd5ff25

Download Submit
memory/3832-23-0x00000000057D0000-0x00000000057E8000-memory.dmp

Filesize
96KB

Download
memory/3832-30-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/3832-17-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3832-29-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/3832-28-0x0000000006B10000-0x0000000006B60000-memory.dmp

Filesize
320KB

Download
memory/3832-26-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/3832-25-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/3832-24-0x0000000006450000-0x00000000064B6000-memory.dmp

Filesize
408KB

Download
memory/3832-22-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/3832-20-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/4784-8-0x000000007514E000-0x000000007514F000-memory.dmp

Filesize
4KB

Download
memory/4784-4-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/4784-11-0x0000000008B40000-0x0000000008B7C000-memory.dmp

Filesize
240KB

Download
memory/4784-1-0x0000000000320000-0x00000000004A4000-memory.dmp

Filesize
1.5MB

Download
memory/4784-21-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/4784-10-0x0000000006520000-0x00000000065BC000-memory.dmp

Filesize
624KB

Download
memory/4784-0-0x000000007514E000-0x000000007514F000-memory.dmp

Filesize
4KB

Download
memory/4784-9-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/4784-3-0x0000000004D40000-0x0000000004DD2000-memory.dmp

Filesize
584KB

Download
memory/4784-7-0x0000000004F90000-0x0000000004FAE000-memory.dmp

Filesize
120KB

Download
memory/4784-6-0x0000000006370000-0x000000000640C000-memory.dmp

Filesize
624KB

Download
memory/4784-5-0x0000000004D20000-0x0000000004D2A000-memory.dmp

Filesize
40KB

Download
memory/4784-2-0x0000000005250000-0x00000000057F4000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads