agenttesla | 0553256ae5cbdd263a05d5f5054041841618a4fbaac45a3335d73a738b1c9a96

General

Target

1fbda84157de1a5505dd8143d3819925.exe
Size

1.3MB
MD5

1fbda84157de1a5505dd8143d3819925
SHA1

36ec984f43815b83ee454d8ca4fb0cc071dc1ccf
SHA256

0553256ae5cbdd263a05d5f5054041841618a4fbaac45a3335d73a738b1c9a96
SHA512

9461d24a4d997f859acbcff00e55d94c97f5be28efdfe0e65db2a70126d1af4cc2a226b2be3f485ba6e982b905a4a4b6aa735f33f69153c707dd0790dcd000ea
SSDEEP

24576:R95ooKw0UYoVJ5jbUVlAUGwNbwPWnuCXnw8I6TvvtBJ+d9pu80roJvKeSWta3t4v:3WoKw0UYiJ5jbo5GqbwPWnuCXnbRTHtW

Score

10^/10

agenttesla collection keylogger spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.alfafoodservices.com
Port:
587
Username:
[email protected]
Password:
gwagon2014

Signatures

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

AgentTesla payload 4 IoCs

resource	yara_rule
behavioral1/files/0x000900000001447e-4.dat	family_agenttesla
behavioral1/files/0x000900000001447e-3.dat	family_agenttesla
behavioral1/memory/1600-5-0x00000000003B0000-0x0000000000400000-memory.dmp	family_agenttesla
behavioral1/memory/1600-7-0x0000000004CE0000-0x0000000004D20000-memory.dmp	family_agenttesla

Executes dropped EXE 1 IoCs

pid	Process
1600	test.exe

Loads dropped DLL 1 IoCs

pid	Process
2208	cmd.exe

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

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1872-0-0x0000000000400000-0x00000000006A3000-memory.dmp	upx
behavioral1/memory/1872-9-0x0000000000400000-0x00000000006A3000-memory.dmp	upx

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe
Key opened	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe
Key opened	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1600	test.exe
1600	test.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1600	test.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1600	test.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1872 wrote to memory of 2208	1872	1fbda84157de1a5505dd8143d3819925.exe	16
PID 1872 wrote to memory of 2208	1872	1fbda84157de1a5505dd8143d3819925.exe	16
PID 1872 wrote to memory of 2208	1872	1fbda84157de1a5505dd8143d3819925.exe	16
PID 1872 wrote to memory of 2208	1872	1fbda84157de1a5505dd8143d3819925.exe	16
PID 2208 wrote to memory of 1600	2208	cmd.exe	18
PID 2208 wrote to memory of 1600	2208	cmd.exe	18
PID 2208 wrote to memory of 1600	2208	cmd.exe	18
PID 2208 wrote to memory of 1600	2208	cmd.exe	18

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	test.exe

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c test.exe
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2208
- C:\Users\Admin\AppData\Local\Temp\test.exe
  test.exe
  2⤵
  - Executes dropped EXE
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:1600

C:\Users\Admin\AppData\Local\Temp\1fbda84157de1a5505dd8143d3819925.exe
"C:\Users\Admin\AppData\Local\Temp\1fbda84157de1a5505dd8143d3819925.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\test.exe

Filesize
1KB

MD5
86d61274d0fab69d05687c61682c858e

SHA1
09c48934ef59c1f0e3b1477b4ecb28e9eb44b72e

SHA256
5ce376901c0a7bfa9c38dabeca307a3d414981e456a74879120a5e0402f6fac8

SHA512
7a0419245b75a90c6ed7669c786f0043725f3079fc303a05403c491e907dfa57caf90ceca5b12f0d47c7799be38f3899100217f3ec01d313b91b585c0965a5b3

Download Submit
memory/1600-6-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/1600-5-0x00000000003B0000-0x0000000000400000-memory.dmp

Filesize
320KB

Download
memory/1600-7-0x0000000004CE0000-0x0000000004D20000-memory.dmp

Filesize
256KB

Download
memory/1600-8-0x0000000004CE0000-0x0000000004D20000-memory.dmp

Filesize
256KB

Download
memory/1600-11-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/1872-0-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download
memory/1872-9-0x0000000000400000-0x00000000006A3000-memory.dmp

Filesize
2.6MB

Download

Analysis

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