agenttesla | d04380b79524da697074a01b0af3809f881d0fb09a68364083aeb7a1be021249

General

Target

NSS.exe
Size

642KB
MD5

876db5122f5ecb90acc915cec4c89810
SHA1

4dcedd113292812c0ef832640f3e964eec73c289
SHA256

d04380b79524da697074a01b0af3809f881d0fb09a68364083aeb7a1be021249
SHA512

f2813727b0f813cad1638d58aedc03caff7c649f4da5af7ef8161c2826e0a5d9526cf30fb19d94e982dae8d66615ef5f735f691d0f23cf1a601bbc87a9eaf2b8
SSDEEP

12288:9sJTENl3zT882MF7D9mDSwXhblVpFSgW/MiMJRmDch58dbP1PIPcZpCDzep:+xENlDoMF7DUVRlVfSgEr3DE5eZAw

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.impressionmotors.in
Port:
587
Username:
[email protected]
Password:
Kt!@98320Slg

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.impressionmotors.in
Port:
587
Username:
[email protected]
Password:
Kt!@98320Slg
Email To:
[email protected]

Signatures

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

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
49	api.ipify.org
48	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4004 set thread context of 4584	4004	NSS.exe	99

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4584	NSS.exe
4584	NSS.exe
4584	NSS.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4584	NSS.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4004 wrote to memory of 4584	4004	NSS.exe	99
PID 4004 wrote to memory of 4584	4004	NSS.exe	99
PID 4004 wrote to memory of 4584	4004	NSS.exe	99
PID 4004 wrote to memory of 4584	4004	NSS.exe	99
PID 4004 wrote to memory of 4584	4004	NSS.exe	99
PID 4004 wrote to memory of 4584	4004	NSS.exe	99
PID 4004 wrote to memory of 4584	4004	NSS.exe	99
PID 4004 wrote to memory of 4584	4004	NSS.exe	99

C:\Users\Admin\AppData\Local\Temp\NSS.exe
"C:\Users\Admin\AppData\Local\Temp\NSS.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4004
- C:\Users\Admin\AppData\Local\Temp\NSS.exe
  "C:\Users\Admin\AppData\Local\Temp\NSS.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4584

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\NSS.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/4004-10-0x0000000008EE0000-0x0000000008F7C000-memory.dmp

Filesize
624KB

Download
memory/4004-15-0x00000000743C0000-0x0000000074B70000-memory.dmp

Filesize
7.7MB

Download
memory/4004-3-0x0000000005260000-0x00000000052F2000-memory.dmp

Filesize
584KB

Download
memory/4004-0-0x00000000007A0000-0x0000000000846000-memory.dmp

Filesize
664KB

Download
memory/4004-5-0x0000000005250000-0x000000000525A000-memory.dmp

Filesize
40KB

Download
memory/4004-6-0x0000000005750000-0x000000000576C000-memory.dmp

Filesize
112KB

Download
memory/4004-7-0x0000000006430000-0x000000000643C000-memory.dmp

Filesize
48KB

Download
memory/4004-8-0x0000000006440000-0x000000000644E000-memory.dmp

Filesize
56KB

Download
memory/4004-2-0x0000000005770000-0x0000000005D14000-memory.dmp

Filesize
5.6MB

Download
memory/4004-9-0x00000000068A0000-0x0000000006922000-memory.dmp

Filesize
520KB

Download
memory/4004-4-0x00000000054B0000-0x00000000054C0000-memory.dmp

Filesize
64KB

Download
memory/4004-1-0x00000000743C0000-0x0000000074B70000-memory.dmp

Filesize
7.7MB

Download
memory/4584-14-0x00000000743C0000-0x0000000074B70000-memory.dmp

Filesize
7.7MB

Download
memory/4584-11-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4584-16-0x0000000005020000-0x0000000005030000-memory.dmp

Filesize
64KB

Download
memory/4584-17-0x00000000051D0000-0x0000000005236000-memory.dmp

Filesize
408KB

Download
memory/4584-18-0x0000000006810000-0x0000000006860000-memory.dmp

Filesize
320KB

Download
memory/4584-19-0x00000000743C0000-0x0000000074B70000-memory.dmp

Filesize
7.7MB

Download
memory/4584-20-0x0000000005020000-0x0000000005030000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads