agenttesla | 3a6f6da5183576d9360afba90ea7055507837c0ce5f32699cec8da807c08d1ab

General

Target

Commercial Invoice PDF.exe
Size

822KB
MD5

5a12438b3b4c926c12a9376c7bf13426
SHA1

c3185c6a5e5f07a5befbe4af7131d05634f5d1a3
SHA256

1a794211deaa0ecb6abc6101d7c1bd61111b4dd2d895ee7ecf78fbf17f4c9ab3
SHA512

16c1e0e18eb8b3345b8b05443b782cb1dd35492ac986811c39f3cdce8dfe85b003aba029ffca0e38aa33c951d0d08281825152b0e239471eac3de18ac67864d0
SSDEEP

12288:tEqnHvjNIrpf9rN/mc/CaBmIwsyaPSIir97G6NLOZCGKEgbjuPBB5uO12rq:txPjKr5BNDWVxcSIiRG6atlB5N

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.fascia-arch.com
Port:
587
Username:
[email protected]
Password:
HERbertstown1987
Email To:
[email protected]

Signatures

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

Detect packed .NET executables. Mostly AgentTeslaV4. 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2500-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2500-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2500-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2500-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2500-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2500-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2500-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2500-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2500-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2500-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables referencing Windows vault credential objects. Observed in infostealers 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2500-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2500-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2500-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2500-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2500-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2500-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2500-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2500-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2500-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2500-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Detects executables referencing many email and collaboration clients. Observed in information stealers 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2500-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2500-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2500-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2500-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2500-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

Detects executables referencing many file transfer clients. Observed in information stealers 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2500-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2500-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2500-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2500-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2500-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Commercial Invoice PDF.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\BjTxJte = "C:\\Users\\Admin\\AppData\\Roaming\\BjTxJte\\BjTxJte.exe"	Commercial Invoice PDF.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.

Processes:

flow ioc

4 api.ipify.org
5 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

Commercial Invoice PDF.exe

description pid process target process

PID 2356 set thread context of 2500 2356 Commercial Invoice PDF.exe Commercial Invoice PDF.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

1944 schtasks.exe

flow	ioc
4	api.ipify.org
5	api.ipify.org

description	pid	process	target process
PID 2356 set thread context of 2500	2356	Commercial Invoice PDF.exe	Commercial Invoice PDF.exe

pid	process
1944	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

Commercial Invoice PDF.exeCommercial Invoice PDF.exepowershell.exepowershell.exe

pid	process
2356	Commercial Invoice PDF.exe
2356	Commercial Invoice PDF.exe
2356	Commercial Invoice PDF.exe
2500	Commercial Invoice PDF.exe
2500	Commercial Invoice PDF.exe
2640	powershell.exe
2568	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

Commercial Invoice PDF.exeCommercial Invoice PDF.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	2356	Commercial Invoice PDF.exe
Token: SeDebugPrivilege	2500	Commercial Invoice PDF.exe
Token: SeDebugPrivilege	2640	powershell.exe
Token: SeDebugPrivilege	2568	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Commercial Invoice PDF.exe

pid process

2500 Commercial Invoice PDF.exe

pid	process
2500	Commercial Invoice PDF.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

Commercial Invoice PDF.exe

description	pid	process	target process
PID 2356 wrote to memory of 2640	2356	Commercial Invoice PDF.exe	powershell.exe
PID 2356 wrote to memory of 2640	2356	Commercial Invoice PDF.exe	powershell.exe
PID 2356 wrote to memory of 2640	2356	Commercial Invoice PDF.exe	powershell.exe
PID 2356 wrote to memory of 2640	2356	Commercial Invoice PDF.exe	powershell.exe
PID 2356 wrote to memory of 2568	2356	Commercial Invoice PDF.exe	powershell.exe
PID 2356 wrote to memory of 2568	2356	Commercial Invoice PDF.exe	powershell.exe
PID 2356 wrote to memory of 2568	2356	Commercial Invoice PDF.exe	powershell.exe
PID 2356 wrote to memory of 2568	2356	Commercial Invoice PDF.exe	powershell.exe
PID 2356 wrote to memory of 1944	2356	Commercial Invoice PDF.exe	schtasks.exe
PID 2356 wrote to memory of 1944	2356	Commercial Invoice PDF.exe	schtasks.exe
PID 2356 wrote to memory of 1944	2356	Commercial Invoice PDF.exe	schtasks.exe
PID 2356 wrote to memory of 1944	2356	Commercial Invoice PDF.exe	schtasks.exe
PID 2356 wrote to memory of 2500	2356	Commercial Invoice PDF.exe	Commercial Invoice PDF.exe
PID 2356 wrote to memory of 2500	2356	Commercial Invoice PDF.exe	Commercial Invoice PDF.exe
PID 2356 wrote to memory of 2500	2356	Commercial Invoice PDF.exe	Commercial Invoice PDF.exe
PID 2356 wrote to memory of 2500	2356	Commercial Invoice PDF.exe	Commercial Invoice PDF.exe
PID 2356 wrote to memory of 2500	2356	Commercial Invoice PDF.exe	Commercial Invoice PDF.exe
PID 2356 wrote to memory of 2500	2356	Commercial Invoice PDF.exe	Commercial Invoice PDF.exe
PID 2356 wrote to memory of 2500	2356	Commercial Invoice PDF.exe	Commercial Invoice PDF.exe
PID 2356 wrote to memory of 2500	2356	Commercial Invoice PDF.exe	Commercial Invoice PDF.exe
PID 2356 wrote to memory of 2500	2356	Commercial Invoice PDF.exe	Commercial Invoice PDF.exe

C:\Users\Admin\AppData\Local\Temp\Commercial Invoice PDF.exe
"C:\Users\Admin\AppData\Local\Temp\Commercial Invoice PDF.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2356

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Commercial Invoice PDF.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2640

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\CmxzrHBB.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2568

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CmxzrHBB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3B5B.tmp"
2⤵
- Creates scheduled task(s)
PID:1944

C:\Users\Admin\AppData\Local\Temp\Commercial Invoice PDF.exe
"C:\Users\Admin\AppData\Local\Temp\Commercial Invoice PDF.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2500

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

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

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp3B5B.tmp
Filesize
1KB

MD5
f98d68ef7451e61c745a71131da253d4

SHA1
4a56867c04a459785fbec311c5071dc31ff603c4

SHA256
a0c488fe488da0f95d8d4b0e5038a4801c055119722e2d5f4cfa5f88622c1144

SHA512
7f37a6fd4ad9d63737cae3823541380a7f9504c83e2cf280db9cb7a509fc47481cfb6751816e12e0bb7145595108696f2186070c71e2995db31ff271e44518e8

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
Filesize
7KB

MD5
e722babfd070e66066d9c0342737cd96

SHA1
8f138cccb6811f731ef264bdedad70d183df6198

SHA256
1fe4a72611b961be5359bb2fd41c8ae06460191e9b82b243dab1d2b5d85dccff

SHA512
ffe1857f9f44e94471812cc74f4f85f0d354e8104f12210279fd83f4d1708f320c07612f4be651098717fa21277ac30daef03037af8778328b6e18a0a9792290

Download Submit
memory/2356-31-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/2356-1-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/2356-2-0x0000000004D60000-0x0000000004DA0000-memory.dmp

Filesize
256KB

Download
memory/2356-3-0x0000000000420000-0x0000000000440000-memory.dmp

Filesize
128KB

Download
memory/2356-4-0x0000000000550000-0x0000000000564000-memory.dmp

Filesize
80KB

Download
memory/2356-5-0x0000000004C90000-0x0000000004D14000-memory.dmp

Filesize
528KB

Download
memory/2356-0-0x0000000001200000-0x00000000012D4000-memory.dmp

Filesize
848KB

Download
memory/2500-22-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2500-27-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2500-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2500-24-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2500-30-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2500-20-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2500-28-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2500-18-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads