agenttesla | 23b23bbc8497e567eba43518485bb19fe70d295e54e5af14f90d233b33d862f9

Analysis

max time kernel
42s
max time network
145s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
08-02-2023 16:06

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General

Target

Docs.exe
Size

537KB
MD5

b983d7ae5788fb40c2fda069ef162fc4
SHA1

d8bad219e4c0520afd19de5e0ec1842c5f56f9e1
SHA256

23b23bbc8497e567eba43518485bb19fe70d295e54e5af14f90d233b33d862f9
SHA512

b8789ac9f36d786eae1e0b4182f906a08419b8380fe0de4cfc97e59ccaa0236d1a0d615751582606691368b1d854f649127f34d1aec6016de763ca656a0f90cf
SSDEEP

12288:S7rhVe5d6U6sRg9db30NOQA+/7lP2alQDL50VOcORIGhCTAaLmAiN3DyuUjW4nRg:8LsRg9db30NOQA+/7lPI0VxUIGhCdfeG

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.emeraldstargroup.com
Port:
587
Username:
[email protected]
Password:
W4AJ4H0F1J8K
Email To:
[email protected]

Signatures

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 840 set thread context of 560	840	Docs.exe	28

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
840	Docs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	840	Docs.exe
Token: SeDebugPrivilege	560	RegSvcs.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 840 wrote to memory of 560	840	Docs.exe	28
PID 840 wrote to memory of 560	840	Docs.exe	28
PID 840 wrote to memory of 560	840	Docs.exe	28
PID 840 wrote to memory of 560	840	Docs.exe	28
PID 840 wrote to memory of 560	840	Docs.exe	28
PID 840 wrote to memory of 560	840	Docs.exe	28
PID 840 wrote to memory of 560	840	Docs.exe	28
PID 840 wrote to memory of 560	840	Docs.exe	28
PID 840 wrote to memory of 560	840	Docs.exe	28
PID 840 wrote to memory of 560	840	Docs.exe	28
PID 840 wrote to memory of 560	840	Docs.exe	28
PID 840 wrote to memory of 560	840	Docs.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Docs.exe
"C:\Users\Admin\AppData\Local\Temp\Docs.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:840
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:560

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/560-64-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/560-59-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/560-60-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/560-62-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/560-63-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/560-65-0x000000000042A7EE-mapping.dmp

Download
memory/560-67-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/560-69-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/840-55-0x0000000075A91000-0x0000000075A93000-memory.dmp

Filesize
8KB

Download
memory/840-56-0x00000000003F0000-0x00000000003FE000-memory.dmp

Filesize
56KB

Download
memory/840-57-0x0000000004A50000-0x0000000004AC6000-memory.dmp

Filesize
472KB

Download
memory/840-58-0x00000000005D0000-0x0000000000600000-memory.dmp

Filesize
192KB

Download
memory/840-54-0x0000000000D20000-0x0000000000DAC000-memory.dmp

Filesize
560KB

Download