agenttesla | 65ea7c521264d69a5e044a2fa7aa5a330385e733b1cefbff31cb805abaf067fa

General

Target

download.exe
Size

328KB
MD5

d61526463472da19dd8869f484a8f4ef
SHA1

20514ac586fb6847057be18ecf00b84cda7e948f
SHA256

65ea7c521264d69a5e044a2fa7aa5a330385e733b1cefbff31cb805abaf067fa
SHA512

925089713ea4877de9300c0998eabcef4850af08ea6e7a12704e92736928461e54a8fa8cb56c3c910ca334e5395a5497f38715237970f4f70532a26405cd3fee
SSDEEP

3072:7+2Lmlx1JlKiSBTxbBGiz64tlyz5X0JdYA4TQTnDrGdQo9bFxYo9OtVa2M:7+2Lmlx1JldSVxbBF643yOdxBDrGVbHR

Score

10^/10

agenttesla xworm discovery keylogger rat spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
162.254.34.31
Port:
587
Username:
[email protected]
Password:
ABwuRZS5Mjh5

Extracted

Family

xworm

C2

89.40.31.232:1717

Attributes

install_file
USB.exe
telegram
https://api.telegram.org/bot5630894183:AAFSNB69Q2a6dw-6XMnWlasTfT2befh82Rk/sendMessage?chat_id=793028759

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
162.254.34.31
Port:
587
Username:
[email protected]
Password:
ABwuRZS5Mjh5
Email To:
[email protected]

Signatures

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

Detect Xworm Payload 2 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\FB_6B1F.tmp.exe	family_xworm
behavioral2/memory/1400-23-0x00000000001A0000-0x00000000001BA000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

download.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	download.exe

Executes dropped EXE 2 IoCs

Processes:

FB_6978.tmp.exeFB_6B1F.tmp.exe

pid process

5088 FB_6978.tmp.exe
1400 FB_6B1F.tmp.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 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
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

16 api.ipify.org
17 api.ipify.org
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
5088	FB_6978.tmp.exe
1400	FB_6B1F.tmp.exe

flow	ioc
16	api.ipify.org
17	api.ipify.org

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

Processes:

download.exeFB_6978.tmp.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	download.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	FB_6978.tmp.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

FB_6B1F.tmp.exe

pid process

1400 FB_6B1F.tmp.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

FB_6978.tmp.exeFB_6B1F.tmp.exe

pid process

5088 FB_6978.tmp.exe
5088 FB_6978.tmp.exe
1400 FB_6B1F.tmp.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

FB_6978.tmp.exeFB_6B1F.tmp.exe

description pid process

Token: SeDebugPrivilege 5088 FB_6978.tmp.exe
Token: SeDebugPrivilege 1400 FB_6B1F.tmp.exe
Token: SeDebugPrivilege 1400 FB_6B1F.tmp.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

FB_6B1F.tmp.exe

pid process

1400 FB_6B1F.tmp.exe

pid	process
1400	FB_6B1F.tmp.exe

pid	process
5088	FB_6978.tmp.exe
5088	FB_6978.tmp.exe
1400	FB_6B1F.tmp.exe

description	pid	process
Token: SeDebugPrivilege	5088	FB_6978.tmp.exe
Token: SeDebugPrivilege	1400	FB_6B1F.tmp.exe
Token: SeDebugPrivilege	1400	FB_6B1F.tmp.exe

pid	process
1400	FB_6B1F.tmp.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

download.exe

description	pid	process	target process
PID 2888 wrote to memory of 5088	2888	download.exe	FB_6978.tmp.exe
PID 2888 wrote to memory of 5088	2888	download.exe	FB_6978.tmp.exe
PID 2888 wrote to memory of 5088	2888	download.exe	FB_6978.tmp.exe
PID 2888 wrote to memory of 1400	2888	download.exe	FB_6B1F.tmp.exe
PID 2888 wrote to memory of 1400	2888	download.exe	FB_6B1F.tmp.exe

C:\Users\Admin\AppData\Local\Temp\download.exe
"C:\Users\Admin\AppData\Local\Temp\download.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2888
- C:\Users\Admin\AppData\Local\Temp\FB_6978.tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\FB_6978.tmp.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5088
- C:\Users\Admin\AppData\Local\Temp\FB_6B1F.tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\FB_6B1F.tmp.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1400

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

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\FB_6978.tmp.exe

Filesize
234KB

MD5
a21df2c0cca131eb534f520fd641adb5

SHA1
cd39e12e326191888b836c3419ac2cb71c2b5b11

SHA256
fb247f5397ba1b2d9328d1acc2fd322181a91ced1953853abb41718dc21198ae

SHA512
dee53e8d4eef995340308a7ef184217556de7c0ba1f1b3ffe0937fe6ea0fbcfd5c3b09bdf8a937a6849b9a2401cb89a8a1c720668a6041e0738fcfa7dfe6af02

Download Submit
C:\Users\Admin\AppData\Local\Temp\FB_6B1F.tmp.exe

Filesize
75KB

MD5
068c99328320caaa7c5f2d31b0ff214b

SHA1
e18b1e08e7f256602be60e1d75b15c2c73284ca2

SHA256
e9434c0bf7be5e39cfad4fe44bb996b09c1283de5706a8721a33363080e9d016

SHA512
a86c80a454c912f379c8077a1fcffc5b79681e4de7020fda900e55a59566dfc5e11086695448cdd33659ed6e6e000a4a46009be29ffa5a9eb3730014de48aa18

Download Submit
memory/1400-22-0x00007FFDB5643000-0x00007FFDB5645000-memory.dmp

Filesize
8KB

Download
memory/1400-37-0x0000000002250000-0x0000000002260000-memory.dmp

Filesize
64KB

Download
memory/1400-23-0x00000000001A0000-0x00000000001BA000-memory.dmp

Filesize
104KB

Download
memory/1400-34-0x00007FFDB5643000-0x00007FFDB5645000-memory.dmp

Filesize
8KB

Download
memory/1400-29-0x0000000002250000-0x0000000002260000-memory.dmp

Filesize
64KB

Download
memory/5088-28-0x00000000739D0000-0x0000000074180000-memory.dmp

Filesize
7.7MB

Download
memory/5088-27-0x00000000057E0000-0x0000000005846000-memory.dmp

Filesize
408KB

Download
memory/5088-26-0x0000000005D00000-0x00000000062A4000-memory.dmp

Filesize
5.6MB

Download
memory/5088-30-0x00000000070F0000-0x0000000007140000-memory.dmp

Filesize
320KB

Download
memory/5088-31-0x00000000071E0000-0x000000000727C000-memory.dmp

Filesize
624KB

Download
memory/5088-32-0x0000000007320000-0x00000000073B2000-memory.dmp

Filesize
584KB

Download
memory/5088-33-0x00000000072B0000-0x00000000072BA000-memory.dmp

Filesize
40KB

Download
memory/5088-25-0x0000000000F20000-0x0000000000F60000-memory.dmp

Filesize
256KB

Download
memory/5088-35-0x00000000739DE000-0x00000000739DF000-memory.dmp

Filesize
4KB

Download
memory/5088-36-0x00000000739D0000-0x0000000074180000-memory.dmp

Filesize
7.7MB

Download
memory/5088-24-0x00000000739DE000-0x00000000739DF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads