agenttesla | 16a15febf0467c21e09bbec34a1ac6c4ef59e9398620005a72c8de22b9d177ca

General

Target

BL copy 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/2484-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2484-29-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2484-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2484-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2484-22-0x0000000000400000-0x0000000000442000-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/2484-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2484-29-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2484-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2484-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2484-22-0x0000000000400000-0x0000000000442000-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/2484-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2484-29-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2484-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2484-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2484-22-0x0000000000400000-0x0000000000442000-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/2484-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2484-29-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2484-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2484-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2484-22-0x0000000000400000-0x0000000000442000-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/2484-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2484-29-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2484-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2484-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2484-22-0x0000000000400000-0x0000000000442000-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/2484-27-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2484-29-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2484-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2484-24-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2484-22-0x0000000000400000-0x0000000000442000-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:

BL copy PDF.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\BjTxJte = "C:\\Users\\Admin\\AppData\\Roaming\\BjTxJte\\BjTxJte.exe"	BL copy 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:

BL copy PDF.exe

description pid process target process

PID 2360 set thread context of 2484 2360 BL copy PDF.exe BL copy 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

2120 schtasks.exe
Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

BL copy PDF.exeBL copy PDF.exepowershell.exepowershell.exe

pid process

2360 BL copy PDF.exe
2360 BL copy PDF.exe
2360 BL copy PDF.exe
2484 BL copy PDF.exe
2484 BL copy PDF.exe
2592 powershell.exe
2640 powershell.exe

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

description	pid	process	target process
PID 2360 set thread context of 2484	2360	BL copy PDF.exe	BL copy PDF.exe

pid	process
2120	schtasks.exe

pid	process
2360	BL copy PDF.exe
2360	BL copy PDF.exe
2360	BL copy PDF.exe
2484	BL copy PDF.exe
2484	BL copy PDF.exe
2592	powershell.exe
2640	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

BL copy PDF.exeBL copy PDF.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	2360	BL copy PDF.exe
Token: SeDebugPrivilege	2484	BL copy PDF.exe
Token: SeDebugPrivilege	2592	powershell.exe
Token: SeDebugPrivilege	2640	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

BL copy PDF.exe

pid process

2484 BL copy PDF.exe

pid	process
2484	BL copy PDF.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

BL copy PDF.exe

description	pid	process	target process
PID 2360 wrote to memory of 2640	2360	BL copy PDF.exe	powershell.exe
PID 2360 wrote to memory of 2640	2360	BL copy PDF.exe	powershell.exe
PID 2360 wrote to memory of 2640	2360	BL copy PDF.exe	powershell.exe
PID 2360 wrote to memory of 2640	2360	BL copy PDF.exe	powershell.exe
PID 2360 wrote to memory of 2592	2360	BL copy PDF.exe	powershell.exe
PID 2360 wrote to memory of 2592	2360	BL copy PDF.exe	powershell.exe
PID 2360 wrote to memory of 2592	2360	BL copy PDF.exe	powershell.exe
PID 2360 wrote to memory of 2592	2360	BL copy PDF.exe	powershell.exe
PID 2360 wrote to memory of 2120	2360	BL copy PDF.exe	schtasks.exe
PID 2360 wrote to memory of 2120	2360	BL copy PDF.exe	schtasks.exe
PID 2360 wrote to memory of 2120	2360	BL copy PDF.exe	schtasks.exe
PID 2360 wrote to memory of 2120	2360	BL copy PDF.exe	schtasks.exe
PID 2360 wrote to memory of 2484	2360	BL copy PDF.exe	BL copy PDF.exe
PID 2360 wrote to memory of 2484	2360	BL copy PDF.exe	BL copy PDF.exe
PID 2360 wrote to memory of 2484	2360	BL copy PDF.exe	BL copy PDF.exe
PID 2360 wrote to memory of 2484	2360	BL copy PDF.exe	BL copy PDF.exe
PID 2360 wrote to memory of 2484	2360	BL copy PDF.exe	BL copy PDF.exe
PID 2360 wrote to memory of 2484	2360	BL copy PDF.exe	BL copy PDF.exe
PID 2360 wrote to memory of 2484	2360	BL copy PDF.exe	BL copy PDF.exe
PID 2360 wrote to memory of 2484	2360	BL copy PDF.exe	BL copy PDF.exe
PID 2360 wrote to memory of 2484	2360	BL copy PDF.exe	BL copy PDF.exe

C:\Users\Admin\AppData\Local\Temp\BL copy PDF.exe
"C:\Users\Admin\AppData\Local\Temp\BL copy PDF.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2360

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\BL copy 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:2592

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CmxzrHBB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp532F.tmp"
2⤵
- Creates scheduled task(s)
PID:2120

C:\Users\Admin\AppData\Local\Temp\BL copy PDF.exe
"C:\Users\Admin\AppData\Local\Temp\BL copy PDF.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2484

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\tmp532F.tmp
Filesize
1KB

MD5
ddcbea556fb9fdf7fb0b516ec7f55a6f

SHA1
05a07abcb97691d457cbfda4ffde583b2c0b47e1

SHA256
a78a7cb00bd9ce192f4d2910b5df10f0c33870cfe0ad365a1745c086d83b8606

SHA512
78df7e5248ab52a4d74ee92cf1d54118f65c022148afaa0ce0b2bd60a4d8f5a0a6f92e86585b908a6626b64ee5c705d5b867838e8817615879cad51b67ce98a9

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

MD5
5ba2b835a30e299433844ae1a26c5564

SHA1
0d0b8366f628fc5b4669c61bef8c14339b75671f

SHA256
3d9fce4d34637c0ca12e13cf970b2bfaab738b561ac1638d5ab6939d7fd8d676

SHA512
e0d465117e82c649ba5268effbbd3497020d6952a7059bd492a266409cb932adac3a05285dc9bc02a66af0a8d7968f69c639e94c5cf48fdd7ad433854c603e63

Download Submit
memory/2360-30-0x0000000074820000-0x0000000074F0E000-memory.dmp

Filesize
6.9MB

Download
memory/2360-1-0x0000000074820000-0x0000000074F0E000-memory.dmp

Filesize
6.9MB

Download
memory/2360-2-0x0000000000580000-0x00000000005C0000-memory.dmp

Filesize
256KB

Download
memory/2360-3-0x0000000000520000-0x0000000000540000-memory.dmp

Filesize
128KB

Download
memory/2360-4-0x0000000000560000-0x0000000000574000-memory.dmp

Filesize
80KB

Download
memory/2360-5-0x0000000005040000-0x00000000050C4000-memory.dmp

Filesize
528KB

Download
memory/2360-0-0x0000000001220000-0x00000000012F4000-memory.dmp

Filesize
848KB

Download
memory/2484-27-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2484-28-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2484-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2484-24-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2484-22-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2484-20-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2484-19-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2484-29-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads