agenttesla | 04d29c1407df011f35e6f0681c579a173230d01c1c937aa895219f43aa3c1f63

General

Target

Lochab Statement.exe
Size

419KB
MD5

63268cc19d18110f40d4c9fab8139e64
SHA1

9f5b3933b402d07778ced6222e679213b3f02884
SHA256

cb66e8b2b867a469d59012b17c0c81be2900a9731529eb1d51073cbb92b5bb84
SHA512

dab348d999f24377a53316c2bcacac02733d19cbd68abea4632d92c5fce90b1d3c0813390e96458e848b4d28a6e903c25937457fd9c67d9cefab6ce9811687a2

Score

10^/10

agenttesla collection keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.chirophysic.co.ke
Port:
587
Username:
simalogs@chirophysic.co.ke
Password:
&qNJfDk}m&j}

Signatures

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

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/764-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/764-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/764-65-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/764-66-0x000000000044742E-mapping.dmp	family_agenttesla
behavioral1/memory/764-68-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/764-70-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1756-56-0x00000000008B0000-0x0000000000904000-memory.dmp	rezer0

Drops file in Drivers directory 1 IoCs

Processes:

Lochab Statement.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts Lochab Statement.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	Lochab Statement.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Lochab Statement.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Lochab Statement.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Lochab Statement.exe
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Lochab Statement.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Lochab Statement.exe

description pid process target process

PID 1756 set thread context of 764 1756 Lochab Statement.exe Lochab Statement.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

1244 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1172 REG.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Lochab Statement.exe

pid process

764 Lochab Statement.exe
764 Lochab Statement.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Lochab Statement.exe

description pid process

Token: SeDebugPrivilege 764 Lochab Statement.exe

description	pid	process	target process
PID 1756 set thread context of 764	1756	Lochab Statement.exe	Lochab Statement.exe

pid	process
1244	schtasks.exe

pid	process
1172	REG.exe

pid	process
764	Lochab Statement.exe
764	Lochab Statement.exe

description	pid	process
Token: SeDebugPrivilege	764	Lochab Statement.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

Lochab Statement.exeLochab Statement.exe

description	pid	process	target process
PID 1756 wrote to memory of 1244	1756	Lochab Statement.exe	schtasks.exe
PID 1756 wrote to memory of 1244	1756	Lochab Statement.exe	schtasks.exe
PID 1756 wrote to memory of 1244	1756	Lochab Statement.exe	schtasks.exe
PID 1756 wrote to memory of 1244	1756	Lochab Statement.exe	schtasks.exe
PID 1756 wrote to memory of 764	1756	Lochab Statement.exe	Lochab Statement.exe
PID 1756 wrote to memory of 764	1756	Lochab Statement.exe	Lochab Statement.exe
PID 1756 wrote to memory of 764	1756	Lochab Statement.exe	Lochab Statement.exe
PID 1756 wrote to memory of 764	1756	Lochab Statement.exe	Lochab Statement.exe
PID 1756 wrote to memory of 764	1756	Lochab Statement.exe	Lochab Statement.exe
PID 1756 wrote to memory of 764	1756	Lochab Statement.exe	Lochab Statement.exe
PID 1756 wrote to memory of 764	1756	Lochab Statement.exe	Lochab Statement.exe
PID 1756 wrote to memory of 764	1756	Lochab Statement.exe	Lochab Statement.exe
PID 1756 wrote to memory of 764	1756	Lochab Statement.exe	Lochab Statement.exe
PID 764 wrote to memory of 1172	764	Lochab Statement.exe	REG.exe
PID 764 wrote to memory of 1172	764	Lochab Statement.exe	REG.exe
PID 764 wrote to memory of 1172	764	Lochab Statement.exe	REG.exe
PID 764 wrote to memory of 1172	764	Lochab Statement.exe	REG.exe

outlook_office_path 1 IoCs

Processes:

Lochab Statement.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Lochab Statement.exe

outlook_win_path 1 IoCs

Processes:

Lochab Statement.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Lochab Statement.exe

C:\Users\Admin\AppData\Local\Temp\Lochab Statement.exe
"C:\Users\Admin\AppData\Local\Temp\Lochab Statement.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1756

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mAqXzIFztN" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF2B9.tmp"
2⤵
- Creates scheduled task(s)
PID:1244

C:\Users\Admin\AppData\Local\Temp\Lochab Statement.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:764

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
3⤵
- Modifies registry key
PID:1172

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

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\Temp\tmpF2B9.tmp
Filesize
1KB

MD5
d4518fc3281c065e2a7e4056d3aed39d

SHA1
f31f88efcc5c030148d0f274d9d6afaa8ebcb914

SHA256
d56e4c5b36344e391980580c4f30d762d08d2b0790a346fa27bf95aa7fc6af33

SHA512
17ecaf90de916a35f76b7b7d933a6b898c990f3745c3d875ad7a3ed3d404620b3b5d183f34a357d633cedbad30f7f7ad842abceea3cb487d81475bd4716419da

Download Submit
memory/764-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/764-66-0x000000000044742E-mapping.dmp

Download
memory/764-70-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/764-68-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/764-65-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/764-60-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/764-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/764-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1172-72-0x0000000000000000-mapping.dmp

Download
memory/1244-58-0x0000000000000000-mapping.dmp

Download
memory/1756-54-0x0000000000370000-0x00000000003E0000-memory.dmp

Filesize
448KB

Download
memory/1756-55-0x00000000003F0000-0x0000000000406000-memory.dmp

Filesize
88KB

Download
memory/1756-56-0x00000000008B0000-0x0000000000904000-memory.dmp

Filesize
336KB

Download
memory/1756-57-0x00000000759F1000-0x00000000759F3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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