agenttesla | 4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5

General

Target

4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe
Size

713KB
MD5

a68f9e8fe3a6b2a073267af477c2bf31
SHA1

96a682c454cfb32ae2928801e89e67b043e47a4e
SHA256

4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5
SHA512

4e283db9f2f7f013b34e37755005f8eea84153d74b3eed513a07fd97ac3bf11c805d4c34ecd68320defe194fde3fb19bd2ff7759659d75dc703bfc51645a60eb
SSDEEP

12288:dU9jA6JPQbRhkYvg86stzDpi4L3HIb66KWlyaiZAuW1md+:AbsPTL3HIb66rsUD

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.avtorska.com.mk
Port:
587
Username:
[email protected]
Password:
avtorska2014@

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.avtorska.com.mk
Port:
587
Username:
[email protected]
Password:
avtorska2014@
Email To:
[email protected]

Signatures

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

RegAsm.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\skype = "C:\\Users\\Admin\\AppData\\Roaming\\skype\\skype.exe"	RegAsm.exe

Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 api.ipify.org
5 api.ipify.org
6 ip-api.com

flow	ioc
4	api.ipify.org
5	api.ipify.org
6	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

Processes:

4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe

description	pid	process	target process
PID 1652 set thread context of 2128	1652	4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exeRegAsm.exe

pid	process
1652	4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe
1652	4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe
1652	4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe
1652	4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe
2128	RegAsm.exe
2128	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exeRegAsm.exe

description	pid	process
Token: SeDebugPrivilege	1652	4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe
Token: SeDebugPrivilege	2128	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegAsm.exe

pid process

2128 RegAsm.exe

pid	process
2128	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe

description	pid	process	target process
PID 1652 wrote to memory of 2128	1652	4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe	RegAsm.exe
PID 1652 wrote to memory of 2128	1652	4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe	RegAsm.exe
PID 1652 wrote to memory of 2128	1652	4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe	RegAsm.exe
PID 1652 wrote to memory of 2128	1652	4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe	RegAsm.exe
PID 1652 wrote to memory of 2128	1652	4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe	RegAsm.exe
PID 1652 wrote to memory of 2128	1652	4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe	RegAsm.exe
PID 1652 wrote to memory of 2128	1652	4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe	RegAsm.exe
PID 1652 wrote to memory of 2128	1652	4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe	RegAsm.exe
PID 1652 wrote to memory of 2128	1652	4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe	RegAsm.exe
PID 1652 wrote to memory of 2128	1652	4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe	RegAsm.exe
PID 1652 wrote to memory of 2128	1652	4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe	RegAsm.exe
PID 1652 wrote to memory of 2128	1652	4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe
"C:\Users\Admin\AppData\Local\Temp\4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1652
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2128

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

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
68KB

MD5
29f65ba8e88c063813cc50a4ea544e93

SHA1
05a7040d5c127e68c25d81cc51271ffb8bef3568

SHA256
1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

SHA512
e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarDD4C.tmp

Filesize
177KB

MD5
435a9ac180383f9fa094131b173a2f7b

SHA1
76944ea657a9db94f9a4bef38f88c46ed4166983

SHA256
67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

SHA512
1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

Download Submit
memory/1652-12-0x0000000074290000-0x000000007497E000-memory.dmp

Filesize
6.9MB

Download
memory/1652-11-0x000000007429E000-0x000000007429F000-memory.dmp

Filesize
4KB

Download
memory/1652-4-0x0000000000EF0000-0x0000000000F0A000-memory.dmp

Filesize
104KB

Download
memory/1652-5-0x0000000000A10000-0x0000000000A16000-memory.dmp

Filesize
24KB

Download
memory/1652-1-0x00000000012F0000-0x00000000013A8000-memory.dmp

Filesize
736KB

Download
memory/1652-3-0x0000000074290000-0x000000007497E000-memory.dmp

Filesize
6.9MB

Download
memory/1652-2-0x00000000047B0000-0x00000000047F4000-memory.dmp

Filesize
272KB

Download
memory/1652-16-0x0000000074290000-0x000000007497E000-memory.dmp

Filesize
6.9MB

Download
memory/1652-0-0x000000007429E000-0x000000007429F000-memory.dmp

Filesize
4KB

Download
memory/2128-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2128-7-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2128-13-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2128-15-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2128-14-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2128-8-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2128-9-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2128-6-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads