agenttesla | fd2892b638fafa197381cb5733431ce920baefa842c17e379a809cc837fcb445

General

Target

fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe
Size

498KB
MD5

fdbd5d8a97e3037da2c542607bedb39d
SHA1

cd49cabb42a5729b4e4c48af10c48c2dacc45a05
SHA256

fd2892b638fafa197381cb5733431ce920baefa842c17e379a809cc837fcb445
SHA512

32262a1dc2670db89f65b60f2582c46e03a3c7bb83c132b8a64b368bb5f0cc566ee8a5aaf5c975eca7d744af82745d827d1069ad0f1e5f63aac0a07f8db66fd1
SSDEEP

6144:Tx/MsVodTFqY70Ijt94zcXgXytWo2SYYItxMVZ64mVaFouUX8MmG9OxJrhr:pNSd5vtjoztXAzYYPo4mVaFo6M7CJ

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan

Malware Config

Signatures

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

AgentTesla payload 5 IoCs

resource	yara_rule
behavioral1/memory/1168-12-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1168-14-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1168-15-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1168-17-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1168-18-0x0000000001DE0000-0x0000000001E1C000-memory.dmp	family_agenttesla

Loads dropped DLL 2 IoCs

pid	Process
1076	fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe
1076	fdbd5d8a97e3037da2c542607bedb39d_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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1076 set thread context of 1168	1076	fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe	30

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 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	fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1076	fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe
1076	fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe
1076	fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe
1076	fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe
1168	fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe
1168	fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1076	fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1168	fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1076 wrote to memory of 1168	1076	fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe	30
PID 1076 wrote to memory of 1168	1076	fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe	30
PID 1076 wrote to memory of 1168	1076	fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe	30
PID 1076 wrote to memory of 1168	1076	fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe	30
PID 1076 wrote to memory of 1168	1076	fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1076
- C:\Users\Admin\AppData\Local\Temp\fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\fdbd5d8a97e3037da2c542607bedb39d_JaffaCakes118.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:1168

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 Information Discovery

1

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

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\65pa.dll

Filesize
11KB

MD5
a8d977277094ac80a914a3b76aeec19e

SHA1
7ab08b10d43f01f63f4c5a4b493194fb37d2f6fe

SHA256
d748f96482d525178a9400769f2a21f007e9fe90f1c7ac668bd96259c4408563

SHA512
7225f1e16e2f207f87cba616f8a1879035f12e162cc88c8f77a4c5f46d3c608c2e45ccf129f81fb0c8bf34e6e3ef888c347bf9bdb89b870dbe0b2895441212de

Download Submit
\Users\Admin\AppData\Local\Temp\nso904F.tmp\System.dll

Filesize
11KB

MD5
fccff8cb7a1067e23fd2e2b63971a8e1

SHA1
30e2a9e137c1223a78a0f7b0bf96a1c361976d91

SHA256
6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e

SHA512
f4335e84e6f8d70e462a22f1c93d2998673a7616c868177cac3e8784a3be1d7d0bb96f2583fa0ed82f4f2b6b8f5d9b33521c279a42e055d80a94b4f3f1791e0c

Download Submit
memory/1076-11-0x0000000010000000-0x0000000010005000-memory.dmp

Filesize
20KB

Download
memory/1076-16-0x0000000010000000-0x0000000010005000-memory.dmp

Filesize
20KB

Download
memory/1168-12-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1168-14-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1168-15-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1168-17-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1168-18-0x0000000001DE0000-0x0000000001E1C000-memory.dmp

Filesize
240KB

Download

Analysis

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