agenttesla | 3ff584e04fd6e89be210bbe78735f59e27e2b374294ef5682598f0b3454ff6fe

General

Target

PO 28602....A6hBbL7xL4Jle4w.exe
Size

444KB
MD5

82c88bfa469dbc588304b5f8787fef8f
SHA1

d1bd337791addb1151c5369b5d2922d2e30524ea
SHA256

5eabdc9b1c948d59d99a9a19e6007c36b3fc7bb21dbcb654e73f64a20d6a6aec
SHA512

7e415174d2ffe8f5925778ab59212cd52746a673dbba2d53b7538615bb103aa11ec17acbb8ce6a4c910d8d46e194f75a98c43f50095290995fc1c684dd97e53e

Score

10^/10

agenttesla collection coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
logs2020@gtbenk-plc.com
Password:
mkoify147@@@

Signatures

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

CoreEntity .NET Packer 1 IoCs

A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

coreentity

Processes:

resource	yara_rule
behavioral1/memory/1532-56-0x00000000004F0000-0x00000000004F8000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1720-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1720-64-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1720-65-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1720-66-0x000000000044C7FE-mapping.dmp	family_agenttesla
behavioral1/memory/1720-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1720-70-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

CoreCCC Packer 1 IoCs

Detects CoreCCC packer used to load .NET malware.

Processes:

resource	yara_rule
behavioral1/memory/1532-54-0x0000000000360000-0x00000000003D6000-memory.dmp	coreccc

ReZer0 packer 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1532-57-0x0000000004480000-0x00000000044D8000-memory.dmp	rezer0

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

PO 28602....A6hBbL7xL4Jle4w.exe

description pid process target process

PID 1532 set thread context of 1720 1532 PO 28602....A6hBbL7xL4Jle4w.exe RegSvcs.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

988 schtasks.exe

description	pid	process	target process
PID 1532 set thread context of 1720	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe

pid	process
988	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

PO 28602....A6hBbL7xL4Jle4w.exeRegSvcs.exe

pid	process
1532	PO 28602....A6hBbL7xL4Jle4w.exe
1532	PO 28602....A6hBbL7xL4Jle4w.exe
1532	PO 28602....A6hBbL7xL4Jle4w.exe
1532	PO 28602....A6hBbL7xL4Jle4w.exe
1532	PO 28602....A6hBbL7xL4Jle4w.exe
1720	RegSvcs.exe
1720	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PO 28602....A6hBbL7xL4Jle4w.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1532 PO 28602....A6hBbL7xL4Jle4w.exe
Token: SeDebugPrivilege 1720 RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1532	PO 28602....A6hBbL7xL4Jle4w.exe
Token: SeDebugPrivilege	1720	RegSvcs.exe

Suspicious use of WriteProcessMemory 34 IoCs

Processes:

PO 28602....A6hBbL7xL4Jle4w.exeRegSvcs.exe

description	pid	process	target process
PID 1532 wrote to memory of 988	1532	PO 28602....A6hBbL7xL4Jle4w.exe	schtasks.exe
PID 1532 wrote to memory of 988	1532	PO 28602....A6hBbL7xL4Jle4w.exe	schtasks.exe
PID 1532 wrote to memory of 988	1532	PO 28602....A6hBbL7xL4Jle4w.exe	schtasks.exe
PID 1532 wrote to memory of 988	1532	PO 28602....A6hBbL7xL4Jle4w.exe	schtasks.exe
PID 1532 wrote to memory of 1756	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1756	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1756	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1756	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1756	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1756	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1756	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1732	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1732	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1732	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1732	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1732	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1732	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1732	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1720	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1720	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1720	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1720	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1720	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1720	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1720	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1720	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1720	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1720	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1720	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1532 wrote to memory of 1720	1532	PO 28602....A6hBbL7xL4Jle4w.exe	RegSvcs.exe
PID 1720 wrote to memory of 1196	1720	RegSvcs.exe	netsh.exe
PID 1720 wrote to memory of 1196	1720	RegSvcs.exe	netsh.exe
PID 1720 wrote to memory of 1196	1720	RegSvcs.exe	netsh.exe
PID 1720 wrote to memory of 1196	1720	RegSvcs.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\PO 28602....A6hBbL7xL4Jle4w.exe
"C:\Users\Admin\AppData\Local\Temp\PO 28602....A6hBbL7xL4Jle4w.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1532

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rluahzGlVOkvwh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7753.tmp"
2⤵
- Creates scheduled task(s)
PID:988

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:1756

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:1732

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1720

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1196

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

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp7753.tmp
Filesize
1KB

MD5
0d3b8cdce3fe1923781f6f7908fc4da1

SHA1
e87709405e67195dc691976251c99c23185238dc

SHA256
8fa2556f482cf77ee54d61e698e2b1b8bbe60875bc32e0d500c8ea78b4682a25

SHA512
74ecabd578c858c971a5196eba046b7436f7c6d9bba236676a5d0f4880dff3c76b5bd6f218b0b6db6f9e64597afbf5b170281aed1d9107bd152370d9317846b8

Download Submit
memory/988-58-0x0000000000000000-mapping.dmp

Download
memory/1196-72-0x0000000000000000-mapping.dmp

Download
memory/1532-55-0x0000000076241000-0x0000000076243000-memory.dmp

Filesize
8KB

Download
memory/1532-56-0x00000000004F0000-0x00000000004F8000-memory.dmp

Filesize
32KB

Download
memory/1532-57-0x0000000004480000-0x00000000044D8000-memory.dmp

Filesize
352KB

Download
memory/1532-54-0x0000000000360000-0x00000000003D6000-memory.dmp

Filesize
472KB

Download
memory/1720-60-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1720-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1720-64-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1720-65-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1720-66-0x000000000044C7FE-mapping.dmp

Download
memory/1720-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1720-70-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1720-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads