agenttesla | cbdeb1f6768239ad526f25da88c5d69f4d56ccb69e9a5c106ae7fd89646dfc9d

General

Target

Payment Receipt.exe
Size

490KB
MD5

0de096a3e59cbae3939f5f8b7e191364
SHA1

630a1e83b76df9e164d9ace365756376991ab86a
SHA256

cbdeb1f6768239ad526f25da88c5d69f4d56ccb69e9a5c106ae7fd89646dfc9d
SHA512

a0332119cec20ab7cd58913708db93442a9ed3c903003a589ca4cdbc2011f3ef19d889f61bf1730387971db90caa65dba793182a1ffd7d653e7cbfff2bb746e2

Score

10^/10

agenttesla coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.guthrie.com.sg
Port:
587
Username:
roytay@guthrie.com.sg
Password:
gut.com.sg

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/1764-4-0x00000000002E0000-0x00000000002E3000-memory.dmp	coreentity

AgentTesla Payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1104-8-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1104-9-0x000000000044CC4E-mapping.dmp	family_agenttesla
behavioral1/memory/1104-10-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1104-11-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

rezer0 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1764-5-0x00000000047B0000-0x0000000004803000-memory.dmp	rezer0

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

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

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

Data from Local System
T1005

Credentials in Files
T1081
Suspicious use of SetThreadContext 1 IoCs

Processes:

Payment Receipt.exe

description pid process target process

PID 1764 set thread context of 1104 1764 Payment Receipt.exe Payment Receipt.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

2000 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Payment Receipt.exePayment Receipt.exe

pid process

1764 Payment Receipt.exe
1764 Payment Receipt.exe
1104 Payment Receipt.exe
1104 Payment Receipt.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Payment Receipt.exePayment Receipt.exe

description pid process

Token: SeDebugPrivilege 1764 Payment Receipt.exe
Token: SeDebugPrivilege 1104 Payment Receipt.exe

description	pid	process	target process
PID 1764 set thread context of 1104	1764	Payment Receipt.exe	Payment Receipt.exe

pid	process
2000	schtasks.exe

pid	process
1764	Payment Receipt.exe
1764	Payment Receipt.exe
1104	Payment Receipt.exe
1104	Payment Receipt.exe

description	pid	process
Token: SeDebugPrivilege	1764	Payment Receipt.exe
Token: SeDebugPrivilege	1104	Payment Receipt.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

Payment Receipt.exePayment Receipt.exe

description	pid	process	target process
PID 1764 wrote to memory of 2000	1764	Payment Receipt.exe	schtasks.exe
PID 1764 wrote to memory of 2000	1764	Payment Receipt.exe	schtasks.exe
PID 1764 wrote to memory of 2000	1764	Payment Receipt.exe	schtasks.exe
PID 1764 wrote to memory of 2000	1764	Payment Receipt.exe	schtasks.exe
PID 1764 wrote to memory of 1104	1764	Payment Receipt.exe	Payment Receipt.exe
PID 1764 wrote to memory of 1104	1764	Payment Receipt.exe	Payment Receipt.exe
PID 1764 wrote to memory of 1104	1764	Payment Receipt.exe	Payment Receipt.exe
PID 1764 wrote to memory of 1104	1764	Payment Receipt.exe	Payment Receipt.exe
PID 1764 wrote to memory of 1104	1764	Payment Receipt.exe	Payment Receipt.exe
PID 1764 wrote to memory of 1104	1764	Payment Receipt.exe	Payment Receipt.exe
PID 1764 wrote to memory of 1104	1764	Payment Receipt.exe	Payment Receipt.exe
PID 1764 wrote to memory of 1104	1764	Payment Receipt.exe	Payment Receipt.exe
PID 1764 wrote to memory of 1104	1764	Payment Receipt.exe	Payment Receipt.exe
PID 1104 wrote to memory of 1364	1104	Payment Receipt.exe	netsh.exe
PID 1104 wrote to memory of 1364	1104	Payment Receipt.exe	netsh.exe
PID 1104 wrote to memory of 1364	1104	Payment Receipt.exe	netsh.exe
PID 1104 wrote to memory of 1364	1104	Payment Receipt.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\Payment Receipt.exe
"C:\Users\Admin\AppData\Local\Temp\Payment Receipt.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1764

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\oKpchGYt" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA4D7.tmp"
2⤵
- Creates scheduled task(s)
PID:2000

C:\Users\Admin\AppData\Local\Temp\Payment Receipt.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1104

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1364

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

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA4D7.tmp
MD5
ec0215e2b193c4e2b9d4f406e45f30fe

SHA1
4a679f58a78600110c4290d429ffc7973cbe627a

SHA256
ddec3eea7def8b0977ebb07aeb5a1d3d21fc238945f3f8c77ad831b59f707102

SHA512
e85dd1d7d8fbbda2a6e0f6fb67e12aeeb9088bf2bcd611ff9dcc9d15ba754de7c497cdac81cec5dba5a84cc50b330c2acfb54e8855ae4f2bed3765bc66ea555b

Download Submit
memory/1104-10-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1104-8-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1104-9-0x000000000044CC4E-mapping.dmp

Download
memory/1104-11-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1104-12-0x0000000074DD0000-0x00000000754BE000-memory.dmp

Filesize
6.9MB

Download
memory/1364-15-0x0000000000000000-mapping.dmp

Download
memory/1764-3-0x0000000004130000-0x000000000418A000-memory.dmp

Filesize
360KB

Download
memory/1764-4-0x00000000002E0000-0x00000000002E3000-memory.dmp

Filesize
12KB

Download
memory/1764-5-0x00000000047B0000-0x0000000004803000-memory.dmp

Filesize
332KB

Download
memory/1764-1-0x0000000000030000-0x0000000000031000-memory.dmp

Filesize
4KB

Download
memory/1764-0-0x0000000074DD0000-0x00000000754BE000-memory.dmp

Filesize
6.9MB

Download
memory/2000-6-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads