agenttesla | c3e1fb98c978c699c79b569c14c7bc41fce17a1846e9d66757ad579e3c97ceda

General

Target

bank TT slip.exe
Size

922KB
MD5

f92972c4d6cb28b350e6fa0ce897ebf2
SHA1

edb8413f28ccda47f892f0ecdb85d80f5412cd93
SHA256

c3e1fb98c978c699c79b569c14c7bc41fce17a1846e9d66757ad579e3c97ceda
SHA512

0d761dac89dba988763cb86bf756f0ea17f3e2eee1badf545491bb8b56090a955e0b6b10c11835638256ac7cb69c73e2ca489db35480271bc7f3c90e4e5e4ccb

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.vibranthonda.co
Port:
587
Username:
parts@vibranthonda.co
Password:
RADHE@123

Signatures

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

AgentTesla Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/424-128-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/424-129-0x00000000004376DE-mapping.dmp	family_agenttesla
behavioral2/memory/424-135-0x0000000005100000-0x00000000055FE000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

bank TT slip.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts bank TT slip.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

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	bank TT slip.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

bank TT slip.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	bank TT slip.exe
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	bank TT slip.exe
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	bank TT slip.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

bank TT slip.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\tKZVPq = "C:\\Users\\Admin\\AppData\\Roaming\\tKZVPq\\tKZVPq.exe"	bank TT slip.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

bank TT slip.exe

description pid process target process

PID 2888 set thread context of 424 2888 bank TT slip.exe bank TT slip.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

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
T1053

Processes:

schtasks.exe

pid process

1072 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

bank TT slip.exe

pid process

424 bank TT slip.exe
424 bank TT slip.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

bank TT slip.exe

description pid process

Token: SeDebugPrivilege 424 bank TT slip.exe

description	pid	process	target process
PID 2888 set thread context of 424	2888	bank TT slip.exe	bank TT slip.exe

pid	process
1072	schtasks.exe

pid	process
424	bank TT slip.exe
424	bank TT slip.exe

description	pid	process
Token: SeDebugPrivilege	424	bank TT slip.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

bank TT slip.exe

description	pid	process	target process
PID 2888 wrote to memory of 1072	2888	bank TT slip.exe	schtasks.exe
PID 2888 wrote to memory of 1072	2888	bank TT slip.exe	schtasks.exe
PID 2888 wrote to memory of 1072	2888	bank TT slip.exe	schtasks.exe
PID 2888 wrote to memory of 424	2888	bank TT slip.exe	bank TT slip.exe
PID 2888 wrote to memory of 424	2888	bank TT slip.exe	bank TT slip.exe
PID 2888 wrote to memory of 424	2888	bank TT slip.exe	bank TT slip.exe
PID 2888 wrote to memory of 424	2888	bank TT slip.exe	bank TT slip.exe
PID 2888 wrote to memory of 424	2888	bank TT slip.exe	bank TT slip.exe
PID 2888 wrote to memory of 424	2888	bank TT slip.exe	bank TT slip.exe
PID 2888 wrote to memory of 424	2888	bank TT slip.exe	bank TT slip.exe
PID 2888 wrote to memory of 424	2888	bank TT slip.exe	bank TT slip.exe

outlook_office_path 1 IoCs

Processes:

bank TT slip.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	bank TT slip.exe

outlook_win_path 1 IoCs

Processes:

bank TT slip.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	bank TT slip.exe

C:\Users\Admin\AppData\Local\Temp\bank TT slip.exe
"C:\Users\Admin\AppData\Local\Temp\bank TT slip.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2888

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fzoFhfGhuG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp50AC.tmp"
2⤵
- Creates scheduled task(s)
PID:1072

C:\Users\Admin\AppData\Local\Temp\bank TT slip.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:424

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\bank TT slip.exe.log
MD5
90acfd72f14a512712b1a7380c0faf60

SHA1
40ba4accb8faa75887e84fb8e38d598dc8cf0f12

SHA256
20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

SHA512
29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp50AC.tmp
MD5
d3d96beeab96915627423ca73b138f45

SHA1
16f8dd87c1f2587b4ea1093204c3aa29a134852d

SHA256
76d122f1e80938622bb7f696ec6752bd8c59647241caa52464e2e6c9ea5e5af7

SHA512
7b1fdfee453aa9b1e06e833d5c2030eb94601b40d9822b699afccb23779197b467e4c81108e6f3e5b88806488d56e0f80611c9443ef9a3a2813f9868a1600c6d

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memory/424-137-0x0000000005E60000-0x0000000005E61000-memory.dmp

Filesize
4KB

Download
memory/424-136-0x0000000005590000-0x0000000005591000-memory.dmp

Filesize
4KB

Download
memory/424-135-0x0000000005100000-0x00000000055FE000-memory.dmp

Filesize
5.0MB

Download
memory/424-129-0x00000000004376DE-mapping.dmp

Download
memory/424-128-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1072-126-0x0000000000000000-mapping.dmp

Download
memory/2888-120-0x0000000002C60000-0x0000000002C61000-memory.dmp

Filesize
4KB

Download
memory/2888-125-0x000000000B270000-0x000000000B2A8000-memory.dmp

Filesize
224KB

Download
memory/2888-124-0x0000000008AB0000-0x0000000008B30000-memory.dmp

Filesize
512KB

Download
memory/2888-123-0x0000000005770000-0x000000000577E000-memory.dmp

Filesize
56KB

Download
memory/2888-122-0x0000000005370000-0x0000000005371000-memory.dmp

Filesize
4KB

Download
memory/2888-121-0x0000000005560000-0x0000000005561000-memory.dmp

Filesize
4KB

Download
memory/2888-115-0x0000000000950000-0x0000000000951000-memory.dmp

Filesize
4KB

Download
memory/2888-119-0x0000000005460000-0x0000000005461000-memory.dmp

Filesize
4KB

Download
memory/2888-118-0x0000000005960000-0x0000000005961000-memory.dmp

Filesize
4KB

Download
memory/2888-117-0x00000000053C0000-0x00000000053C1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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