agenttesla | 8b3d67af35fb4f72b88b3ccf0791b8c1c071908d0f39f4a33f96a485577559e8

General

Target

Halkbank,doc 29092021.7.exe
Size

601KB
MD5

94b6f876789768ac05133078ac969d96
SHA1

3a8f556b950bfa45bd3889bcda39ff8f87df96e2
SHA256

75c5f0200804fc3bbe1c14cba4ddf517c4fa5785806f02424e68a9070d7fd9d2
SHA512

bb86e03fe3fbfb78e0d83bc4f8d5efefa71da8706d21671d340c5e8ceb9a9f20546f8c7fbf5c64fcb0fdcaa244d52673a73ca39c8291a00ddd40378c5d1cbfa6
SSDEEP

12288:IahvCU+Zu/dmvRhzOwaaujMgtyFFiNMQpVddc+v0:ISKU+sOv7UjMgtyv+pVp

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.topfrozenfoodbrand.com
Port:
587
Username:
cuenta@topfrozenfoodbrand.com
Password:
Everest10account
Email To:
account@topfrozenfoodbrand.com

Signatures

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

AgentTesla payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2280-11-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

Halkbank,doc 29092021.7.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts Halkbank,doc 29092021.7.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 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

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	Halkbank,doc 29092021.7.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Halkbank,doc 29092021.7.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank,doc 29092021.7.exe
Key opened	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank,doc 29092021.7.exe
Key opened	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank,doc 29092021.7.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Halkbank,doc 29092021.7.exe

description pid process target process

PID 32 set thread context of 2280 32 Halkbank,doc 29092021.7.exe Halkbank,doc 29092021.7.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3000 2280 WerFault.exe Halkbank,doc 29092021.7.exe

description	pid	process	target process
PID 32 set thread context of 2280	32	Halkbank,doc 29092021.7.exe	Halkbank,doc 29092021.7.exe

pid	pid_target	process	target process
3000	2280	WerFault.exe	Halkbank,doc 29092021.7.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

Halkbank,doc 29092021.7.exeHalkbank,doc 29092021.7.exe

pid	process
32	Halkbank,doc 29092021.7.exe
32	Halkbank,doc 29092021.7.exe
32	Halkbank,doc 29092021.7.exe
32	Halkbank,doc 29092021.7.exe
32	Halkbank,doc 29092021.7.exe
32	Halkbank,doc 29092021.7.exe
2280	Halkbank,doc 29092021.7.exe
2280	Halkbank,doc 29092021.7.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Halkbank,doc 29092021.7.exeHalkbank,doc 29092021.7.exe

description pid process

Token: SeDebugPrivilege 32 Halkbank,doc 29092021.7.exe
Token: SeDebugPrivilege 2280 Halkbank,doc 29092021.7.exe

description	pid	process
Token: SeDebugPrivilege	32	Halkbank,doc 29092021.7.exe
Token: SeDebugPrivilege	2280	Halkbank,doc 29092021.7.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

Halkbank,doc 29092021.7.exe

description	pid	process	target process
PID 32 wrote to memory of 4644	32	Halkbank,doc 29092021.7.exe	Halkbank,doc 29092021.7.exe
PID 32 wrote to memory of 4644	32	Halkbank,doc 29092021.7.exe	Halkbank,doc 29092021.7.exe
PID 32 wrote to memory of 4644	32	Halkbank,doc 29092021.7.exe	Halkbank,doc 29092021.7.exe
PID 32 wrote to memory of 1784	32	Halkbank,doc 29092021.7.exe	Halkbank,doc 29092021.7.exe
PID 32 wrote to memory of 1784	32	Halkbank,doc 29092021.7.exe	Halkbank,doc 29092021.7.exe
PID 32 wrote to memory of 1784	32	Halkbank,doc 29092021.7.exe	Halkbank,doc 29092021.7.exe
PID 32 wrote to memory of 2280	32	Halkbank,doc 29092021.7.exe	Halkbank,doc 29092021.7.exe
PID 32 wrote to memory of 2280	32	Halkbank,doc 29092021.7.exe	Halkbank,doc 29092021.7.exe
PID 32 wrote to memory of 2280	32	Halkbank,doc 29092021.7.exe	Halkbank,doc 29092021.7.exe
PID 32 wrote to memory of 2280	32	Halkbank,doc 29092021.7.exe	Halkbank,doc 29092021.7.exe
PID 32 wrote to memory of 2280	32	Halkbank,doc 29092021.7.exe	Halkbank,doc 29092021.7.exe
PID 32 wrote to memory of 2280	32	Halkbank,doc 29092021.7.exe	Halkbank,doc 29092021.7.exe
PID 32 wrote to memory of 2280	32	Halkbank,doc 29092021.7.exe	Halkbank,doc 29092021.7.exe
PID 32 wrote to memory of 2280	32	Halkbank,doc 29092021.7.exe	Halkbank,doc 29092021.7.exe

outlook_office_path 1 IoCs

Processes:

Halkbank,doc 29092021.7.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank,doc 29092021.7.exe

outlook_win_path 1 IoCs

Processes:

Halkbank,doc 29092021.7.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Halkbank,doc 29092021.7.exe

C:\Users\Admin\AppData\Local\Temp\Halkbank,doc 29092021.7.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank,doc 29092021.7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:32

C:\Users\Admin\AppData\Local\Temp\Halkbank,doc 29092021.7.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank,doc 29092021.7.exe"
2⤵
PID:4644

C:\Users\Admin\AppData\Local\Temp\Halkbank,doc 29092021.7.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank,doc 29092021.7.exe"
2⤵
PID:1784

C:\Users\Admin\AppData\Local\Temp\Halkbank,doc 29092021.7.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank,doc 29092021.7.exe"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2280

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2280 -s 1556
3⤵
- Program crash
PID:3000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 2280 -ip 2280
1⤵
PID:4596

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Lateral Movement

Collection

Data from Local System

4

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Halkbank,doc 29092021.7.exe.log
Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/32-10-0x0000000006A60000-0x0000000006AC0000-memory.dmp

Filesize
384KB

Download
memory/32-5-0x0000000004FC0000-0x0000000004FCA000-memory.dmp

Filesize
40KB

Download
memory/32-16-0x0000000075390000-0x0000000075B40000-memory.dmp

Filesize
7.7MB

Download
memory/32-4-0x0000000005130000-0x0000000005140000-memory.dmp

Filesize
64KB

Download
memory/32-1-0x0000000075390000-0x0000000075B40000-memory.dmp

Filesize
7.7MB

Download
memory/32-6-0x0000000006940000-0x0000000006958000-memory.dmp

Filesize
96KB

Download
memory/32-7-0x0000000075390000-0x0000000075B40000-memory.dmp

Filesize
7.7MB

Download
memory/32-8-0x0000000005130000-0x0000000005140000-memory.dmp

Filesize
64KB

Download
memory/32-9-0x0000000006960000-0x00000000069FC000-memory.dmp

Filesize
624KB

Download
memory/32-0-0x0000000000570000-0x000000000060C000-memory.dmp

Filesize
624KB

Download
memory/32-3-0x0000000004FD0000-0x0000000005062000-memory.dmp

Filesize
584KB

Download
memory/32-2-0x0000000005630000-0x0000000005BD4000-memory.dmp

Filesize
5.6MB

Download
memory/2280-14-0x0000000075390000-0x0000000075B40000-memory.dmp

Filesize
7.7MB

Download
memory/2280-15-0x0000000005060000-0x0000000005070000-memory.dmp

Filesize
64KB

Download
memory/2280-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2280-17-0x0000000005020000-0x0000000005038000-memory.dmp

Filesize
96KB

Download
memory/2280-18-0x0000000005CB0000-0x0000000005D16000-memory.dmp

Filesize
408KB

Download
memory/2280-19-0x0000000075390000-0x0000000075B40000-memory.dmp

Filesize
7.7MB

Download
memory/2280-20-0x0000000005060000-0x0000000005070000-memory.dmp

Filesize
64KB

Download
memory/2280-22-0x00000000060A0000-0x00000000060F0000-memory.dmp

Filesize
320KB

Download
memory/2280-23-0x0000000075390000-0x0000000075B40000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads