agenttesla | b7e96f5e7dc899dc84e8eb7d63c867f38e8b742c2e44680dba593969ff148052

General

Target

ZAMOWIEN.EXE.exe
Size

999KB
MD5

5c45c0877fb82d10594fde27ceef591d
SHA1

ea68349b2af800d39680cf50da9e3284ec1d52a4
SHA256

b7e96f5e7dc899dc84e8eb7d63c867f38e8b742c2e44680dba593969ff148052
SHA512

d6497d61d8bbf155223fe4554783b0e86ab326ffb20bbbac4b444e0d27f16715458bf055085732c4204cbccba84419de62bd75615602a291e26c1dbc74a6bda9
SSDEEP

24576:+YB//x9siaesoieYuVffHku3WggclxxIJzsGOB:j9//FAUHffHkumggclxGZW

Score

10^/10

agenttesla guloader discovery downloader keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.rusticpensiune.ro
Port:
21
Username:
[email protected]
Password:
hr,d@KUwa5llI%*RNL^J]g%8I;!;_Ne#G1h~lE!*86DAAD6#iLm$x)r+e1z$p+_Q,4_(f!};B?vD!IG?NqT[zOHNr6_nww[S]V?MlcYSt_QO

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
4284	ZAMOWIEN.EXE.exe

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 3 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

Credentials from Web Browsers
T1555.003

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1628	ZAMOWIEN.EXE.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4284	ZAMOWIEN.EXE.exe
1628	ZAMOWIEN.EXE.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4284 set thread context of 1628	4284	ZAMOWIEN.EXE.exe	84

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\duefalke\soutenrer.ini	ZAMOWIEN.EXE.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\0409\iterators\likewise.Vid124	ZAMOWIEN.EXE.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ZAMOWIEN.EXE.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ZAMOWIEN.EXE.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1628	ZAMOWIEN.EXE.exe
1628	ZAMOWIEN.EXE.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4284	ZAMOWIEN.EXE.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1628	ZAMOWIEN.EXE.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4284 wrote to memory of 1628	4284	ZAMOWIEN.EXE.exe	84
PID 4284 wrote to memory of 1628	4284	ZAMOWIEN.EXE.exe	84
PID 4284 wrote to memory of 1628	4284	ZAMOWIEN.EXE.exe	84
PID 4284 wrote to memory of 1628	4284	ZAMOWIEN.EXE.exe	84
PID 4284 wrote to memory of 1628	4284	ZAMOWIEN.EXE.exe	84

C:\Users\Admin\AppData\Local\Temp\ZAMOWIEN.EXE.exe
"C:\Users\Admin\AppData\Local\Temp\ZAMOWIEN.EXE.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4284
- C:\Users\Admin\AppData\Local\Temp\ZAMOWIEN.EXE.exe
  "C:\Users\Admin\AppData\Local\Temp\ZAMOWIEN.EXE.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsfACAD.tmp\System.dll

Filesize
12KB

MD5
cff85c549d536f651d4fb8387f1976f2

SHA1
d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e

SHA256
8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8

SHA512
531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88

Download Submit
memory/1628-22-0x0000000037070000-0x00000000370D6000-memory.dmp

Filesize
408KB

Download
memory/1628-15-0x00000000016F0000-0x0000000004622000-memory.dmp

Filesize
47.2MB

Download
memory/1628-19-0x0000000000490000-0x00000000016E4000-memory.dmp

Filesize
18.3MB

Download
memory/1628-20-0x0000000000490000-0x00000000004D2000-memory.dmp

Filesize
264KB

Download
memory/1628-21-0x0000000037220000-0x00000000377C4000-memory.dmp

Filesize
5.6MB

Download
memory/1628-23-0x00000000371A0000-0x00000000371F0000-memory.dmp

Filesize
320KB

Download
memory/1628-24-0x0000000037BD0000-0x0000000037C62000-memory.dmp

Filesize
584KB

Download
memory/1628-25-0x0000000037CA0000-0x0000000037CAA000-memory.dmp

Filesize
40KB

Download
memory/1628-27-0x00000000016F0000-0x0000000004622000-memory.dmp

Filesize
47.2MB

Download
memory/4284-12-0x00000000770F1000-0x0000000077211000-memory.dmp

Filesize
1.1MB

Download
memory/4284-13-0x0000000073DE5000-0x0000000073DE6000-memory.dmp

Filesize
4KB

Download
memory/4284-14-0x00000000032C0000-0x00000000061F2000-memory.dmp

Filesize
47.2MB

Download
memory/4284-11-0x00000000032C0000-0x00000000061F2000-memory.dmp

Filesize
47.2MB

Download

Analysis

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