agenttesla | 729b4c1db5fc47c9097aebebfcf4b618b57d081c9e49aa8ad612eeba02475e57

Analysis

max time kernel
122s
max time network
152s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
13/07/2023, 12:20

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General

Target

Creed 4.xlsx
Size

725KB
MD5

80ede4eb9d003e36c88a5865aef08a8e
SHA1

b19feef909ea9a8e645296e34710381835e86a95
SHA256

4b4269c2a823ccb46c554784a1491cd8de9610425d063f891764bab59a38c608
SHA512

53dd99bc689fef81068242fe2a7f79c35052532000338d7e96e449174b656868ce57ef117811d9523c799caaeb63eea0a41f122d7d6f991e9d1e9d47701e8c3e
SSDEEP

12288:opLfX0YDXuJpEsimORxtyzKzlDzuXV26VrKO1zzqDcxk0fR/BVxqxw0vj1xrPYl4:oZP3TtyzERCFbUOdzoMNtBV4xT1xsT45

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.udpl.top
Port:
587
Username:
[email protected]
Password:
,_lBNs3g,F$M

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.udpl.top
Port:
587
Username:
[email protected]
Password:
,_lBNs3g,F$M
Email To:
[email protected]

Signatures

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
2	1804	EQNEDT32.EXE

Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
2644	BNE.exe
2884	BNE.exe

Loads dropped DLL 1 IoCs

pid	Process
1804	EQNEDT32.EXE

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
T1081
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
T1081
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
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-722410544-1258951091-1992882075-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BNE.exe
Key opened	\REGISTRY\USER\S-1-5-21-722410544-1258951091-1992882075-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BNE.exe
Key opened	\REGISTRY\USER\S-1-5-21-722410544-1258951091-1992882075-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BNE.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-722410544-1258951091-1992882075-1000\Software\Microsoft\Windows\CurrentVersion\Run\napp = "C:\\Users\\Admin\\AppData\\Roaming\\napp\\napp.exe"	BNE.exe

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
5	api.ipify.org
6	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2644 set thread context of 2884	2644	BNE.exe	33

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Launches Equation Editor 1 TTPs 1 IoCs

Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

exploit

Exploitation for Client Execution

T1203

pid	Process
1804	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2364	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2884	BNE.exe
2884	BNE.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2884	BNE.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2364	EXCEL.EXE
2364	EXCEL.EXE
2364	EXCEL.EXE

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1804 wrote to memory of 2644	1804	EQNEDT32.EXE	29
PID 1804 wrote to memory of 2644	1804	EQNEDT32.EXE	29
PID 1804 wrote to memory of 2644	1804	EQNEDT32.EXE	29
PID 1804 wrote to memory of 2644	1804	EQNEDT32.EXE	29
PID 2644 wrote to memory of 2884	2644	BNE.exe	33
PID 2644 wrote to memory of 2884	2644	BNE.exe	33
PID 2644 wrote to memory of 2884	2644	BNE.exe	33
PID 2644 wrote to memory of 2884	2644	BNE.exe	33
PID 2644 wrote to memory of 2884	2644	BNE.exe	33
PID 2644 wrote to memory of 2884	2644	BNE.exe	33
PID 2644 wrote to memory of 2884	2644	BNE.exe	33
PID 2644 wrote to memory of 2884	2644	BNE.exe	33
PID 2644 wrote to memory of 2884	2644	BNE.exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-722410544-1258951091-1992882075-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BNE.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-722410544-1258951091-1992882075-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	BNE.exe

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\Creed 4.xlsx"
1⤵
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2364

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:1804
- C:\Users\Admin\AppData\Roaming\BNE.exe
  "C:\Users\Admin\AppData\Roaming\BNE.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2644
- - C:\Users\Admin\AppData\Roaming\BNE.exe
    "C:\Users\Admin\AppData\Roaming\BNE.exe"
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:2884

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Exploitation for Client Execution

T1203

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\BNE.exe

Filesize
644KB

MD5
6360d49ffbcead7772aa88e7dd9bb49b

SHA1
42f6777ab2ce61916e959beaeaa46fcc0cb939a1

SHA256
26cff76211074f2349fc3b217f64facaca9b2604eb4be250796b474dc2ef9842

SHA512
53b486a04f3e74333cffe65683fadb537520cf1bc07698eb07aaaf2963c3b257ad1a7535575ebb29a80ec014d4550c71c210c52e2280556b8c1df1e998e7c7d4

Download Submit
C:\Users\Admin\AppData\Roaming\BNE.exe

Filesize
644KB

MD5
6360d49ffbcead7772aa88e7dd9bb49b

SHA1
42f6777ab2ce61916e959beaeaa46fcc0cb939a1

SHA256
26cff76211074f2349fc3b217f64facaca9b2604eb4be250796b474dc2ef9842

SHA512
53b486a04f3e74333cffe65683fadb537520cf1bc07698eb07aaaf2963c3b257ad1a7535575ebb29a80ec014d4550c71c210c52e2280556b8c1df1e998e7c7d4

Download Submit
C:\Users\Admin\AppData\Roaming\BNE.exe

Filesize
644KB

MD5
6360d49ffbcead7772aa88e7dd9bb49b

SHA1
42f6777ab2ce61916e959beaeaa46fcc0cb939a1

SHA256
26cff76211074f2349fc3b217f64facaca9b2604eb4be250796b474dc2ef9842

SHA512
53b486a04f3e74333cffe65683fadb537520cf1bc07698eb07aaaf2963c3b257ad1a7535575ebb29a80ec014d4550c71c210c52e2280556b8c1df1e998e7c7d4

Download Submit
\Users\Admin\AppData\Roaming\BNE.exe

Filesize
644KB

MD5
6360d49ffbcead7772aa88e7dd9bb49b

SHA1
42f6777ab2ce61916e959beaeaa46fcc0cb939a1

SHA256
26cff76211074f2349fc3b217f64facaca9b2604eb4be250796b474dc2ef9842

SHA512
53b486a04f3e74333cffe65683fadb537520cf1bc07698eb07aaaf2963c3b257ad1a7535575ebb29a80ec014d4550c71c210c52e2280556b8c1df1e998e7c7d4

Download Submit
memory/2364-66-0x000000007318D000-0x0000000073198000-memory.dmp

Filesize
44KB

Download
memory/2364-55-0x000000007318D000-0x0000000073198000-memory.dmp

Filesize
44KB

Download
memory/2364-103-0x000000007318D000-0x0000000073198000-memory.dmp

Filesize
44KB

Download
memory/2364-102-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2364-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2644-64-0x0000000000D10000-0x0000000000D50000-memory.dmp

Filesize
256KB

Download
memory/2644-67-0x000000006B7D0000-0x000000006BEBE000-memory.dmp

Filesize
6.9MB

Download
memory/2644-68-0x0000000000D10000-0x0000000000D50000-memory.dmp

Filesize
256KB

Download
memory/2644-69-0x0000000000CD0000-0x0000000000CD8000-memory.dmp

Filesize
32KB

Download
memory/2644-70-0x0000000000CE0000-0x0000000000CEA000-memory.dmp

Filesize
40KB

Download
memory/2644-71-0x00000000055E0000-0x000000000564A000-memory.dmp

Filesize
424KB

Download
memory/2644-62-0x0000000000DC0000-0x0000000000E66000-memory.dmp

Filesize
664KB

Download
memory/2644-63-0x000000006B7D0000-0x000000006BEBE000-memory.dmp

Filesize
6.9MB

Download
memory/2644-88-0x000000006B7D0000-0x000000006BEBE000-memory.dmp

Filesize
6.9MB

Download
memory/2644-65-0x0000000000CB0000-0x0000000000CC2000-memory.dmp

Filesize
72KB

Download
memory/2884-82-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2884-80-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2884-76-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2884-85-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2884-78-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2884-87-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2884-89-0x000000006B100000-0x000000006B7EE000-memory.dmp

Filesize
6.9MB

Download
memory/2884-90-0x0000000004DD0000-0x0000000004E10000-memory.dmp

Filesize
256KB

Download
memory/2884-98-0x000000006B100000-0x000000006B7EE000-memory.dmp

Filesize
6.9MB

Download
memory/2884-99-0x0000000004DD0000-0x0000000004E10000-memory.dmp

Filesize
256KB

Download
memory/2884-74-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2884-72-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download