agenttesla | c90f02f4c4f58772131c5fc1b8cc8acc647005189e1abd87ecae379a41b0eac8

General

Target

tmp6x00xzqq.exe
Size

701KB
MD5

cd46396fa20831c4ec0acea6534d020f
SHA1

1736c61d635cc61d8e9ec6b0dd15ddf814657fc5
SHA256

c90f02f4c4f58772131c5fc1b8cc8acc647005189e1abd87ecae379a41b0eac8
SHA512

b40e2fe2faab4a4faf3c6e82cd778868fb275e41b55f40a6f566eecab23aac42e0956b261b124c47849bcc8d6a4809192c5ec21e301d8d513b9391571b7cdc91
SSDEEP

12288:Cvp1DrAkngRmfxs7ZsGYAG5utPHH9oTHhwOR6bu:enDrA/mfWZsGY7+0ho

Score

10^/10

agenttesla guloader downloader keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.lumies.co.za
Port:
587
Username:
[email protected]
Password:
vj$)KFsCyFOr
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader
Loads dropped DLL 1 IoCs

Processes:

tmp6x00xzqq.exe

pid process

448 tmp6x00xzqq.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 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 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

49 ip-api.com
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

Processes:

tmp6x00xzqq.exe

pid process

5172 tmp6x00xzqq.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

tmp6x00xzqq.exetmp6x00xzqq.exe

pid process

448 tmp6x00xzqq.exe
5172 tmp6x00xzqq.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

tmp6x00xzqq.exe

description pid process target process

PID 448 set thread context of 5172 448 tmp6x00xzqq.exe tmp6x00xzqq.exe

pid	process
448	tmp6x00xzqq.exe

flow	ioc
49	ip-api.com

pid	process
5172	tmp6x00xzqq.exe

pid	process
448	tmp6x00xzqq.exe
5172	tmp6x00xzqq.exe

description	pid	process	target process
PID 448 set thread context of 5172	448	tmp6x00xzqq.exe	tmp6x00xzqq.exe

Drops file in Windows directory 2 IoCs

Processes:

tmp6x00xzqq.exe

description	ioc	process
File opened for modification	C:\Windows\Fonts\humanhood.krs	tmp6x00xzqq.exe
File opened for modification	C:\Windows\resources\0409\stanse\selenitic.imp	tmp6x00xzqq.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

tmp6x00xzqq.exe

pid process

5172 tmp6x00xzqq.exe
5172 tmp6x00xzqq.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

tmp6x00xzqq.exe

pid process

448 tmp6x00xzqq.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

tmp6x00xzqq.exe

description pid process

Token: SeDebugPrivilege 5172 tmp6x00xzqq.exe

pid	process
5172	tmp6x00xzqq.exe
5172	tmp6x00xzqq.exe

pid	process
448	tmp6x00xzqq.exe

description	pid	process
Token: SeDebugPrivilege	5172	tmp6x00xzqq.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

tmp6x00xzqq.exe

description	pid	process	target process
PID 448 wrote to memory of 5172	448	tmp6x00xzqq.exe	tmp6x00xzqq.exe
PID 448 wrote to memory of 5172	448	tmp6x00xzqq.exe	tmp6x00xzqq.exe
PID 448 wrote to memory of 5172	448	tmp6x00xzqq.exe	tmp6x00xzqq.exe
PID 448 wrote to memory of 5172	448	tmp6x00xzqq.exe	tmp6x00xzqq.exe
PID 448 wrote to memory of 5172	448	tmp6x00xzqq.exe	tmp6x00xzqq.exe

C:\Users\Admin\AppData\Local\Temp\tmp6x00xzqq.exe
"C:\Users\Admin\AppData\Local\Temp\tmp6x00xzqq.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:448

C:\Users\Admin\AppData\Local\Temp\tmp6x00xzqq.exe
"C:\Users\Admin\AppData\Local\Temp\tmp6x00xzqq.exe"
2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5172

Network

MITRE ATT&CK Matrix ATT&CK v13

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

4

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsd3588.tmp\System.dll
Filesize
11KB

MD5
0ff2d70cfdc8095ea99ca2dabbec3cd7

SHA1
10c51496d37cecd0e8a503a5a9bb2329d9b38116

SHA256
982c5fb7ada7d8c9bc3e419d1c35da6f05bc5dd845940c179af3a33d00a36a8b

SHA512
cb5fc0b3194f469b833c2c9abf493fcec5251e8609881b7f5e095b9bd09ed468168e95dda0ba415a7d8d6b7f0dee735467c0ed8e52b223eb5359986891ba6e2e

Download Submit
memory/448-19-0x0000000002AF0000-0x0000000004BA9000-memory.dmp

Filesize
32.7MB

Download
memory/448-9-0x0000000002AF0000-0x0000000004BA9000-memory.dmp

Filesize
32.7MB

Download
memory/448-10-0x0000000076EA1000-0x0000000076FC1000-memory.dmp

Filesize
1.1MB

Download
memory/448-11-0x0000000010004000-0x0000000010005000-memory.dmp

Filesize
4KB

Download
memory/448-13-0x0000000002AF0000-0x0000000004BA9000-memory.dmp

Filesize
32.7MB

Download
memory/5172-12-0x0000000001740000-0x00000000037F9000-memory.dmp

Filesize
32.7MB

Download
memory/5172-18-0x00000000004E0000-0x0000000001734000-memory.dmp

Filesize
18.3MB

Download
memory/5172-14-0x00000000004E0000-0x0000000001734000-memory.dmp

Filesize
18.3MB

Download
memory/5172-20-0x00000000004E0000-0x0000000000522000-memory.dmp

Filesize
264KB

Download
memory/5172-21-0x0000000036520000-0x0000000036AC4000-memory.dmp

Filesize
5.6MB

Download
memory/5172-22-0x0000000034150000-0x00000000341B6000-memory.dmp

Filesize
408KB

Download
memory/5172-24-0x0000000037250000-0x00000000372A0000-memory.dmp

Filesize
320KB

Download
memory/5172-25-0x00000000372A0000-0x0000000037332000-memory.dmp

Filesize
584KB

Download
memory/5172-26-0x0000000037340000-0x000000003734A000-memory.dmp

Filesize
40KB

Download
memory/5172-27-0x0000000001740000-0x00000000037F9000-memory.dmp

Filesize
32.7MB

Download

Analysis

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