agenttesla | d90041e6b2a7deca5936829d8a2f6b9c190abcab6c81c3a99b22d41ed6fffbb0

Analysis

max time kernel
113s
max time network
155s
platform
windows7_x64
resource
win7
submitted
10/07/2020, 05:51

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General

Target

hesaphareketi000001,pdf.exe
Size

2.9MB
MD5

62365690663bb84166207a981d124d64
SHA1

35a0d45093ab7d5e6acc22b0f1b1ee0eaf38da26
SHA256

d90041e6b2a7deca5936829d8a2f6b9c190abcab6c81c3a99b22d41ed6fffbb0
SHA512

2b35cbbe45a125f373d4f57b1184e12ab88c4cd6c76d51bdc4f928a89bdf324eb4cd036fe9df22c69858bd83d9bfd07b012630ea7ebccbb877373f3c235b1135

Score

10^/10

agenttesla masslogger keylogger persistence ransomware spyware stealer trojan

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\E2C1E8F1FA\Log.txt

Family

masslogger

Ransom Note

<|| v2.1.0.0 ||> User Name: Admin IP: 154.61.71.51 Location: United States Windows OS: Microsoft Windows 7 Professional 64bit Windows Serial Key: HYF8J-CVRMY-CM74G-RPHKF-PW487 CPU: Persocon Processor 2.5+ GPU: Standard VGA Graphics Adapter AV: NA Screen Resolution: 1280x720 Current Time: 7/10/2020 5:52:40 AM MassLogger Started: 7/10/2020 5:52:37 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| USB Spread ||> Disabled <|| Downloader ||> Disabled <|| Bot Killer ||> Disabled <|| Window Searcher ||> Disabled <|| Search And Upload ||> Disabled <|| Telegram Desktop ||> Not Installed <|| Pidgin ||> Not Installed <|| FileZilla ||> Not Installed <|| Discord Tokken ||> Not Installed <|| NordVPN ||> Not Installed <|| Outlook ||> Not Installed <|| FoxMail ||> Not Installed <|| Thunderbird ||> Not Installed <|| FireFox ||> Not Found <|| QQ Browser ||> Not Installed <|| Chromium Recovery ||> Not Installed or Not Found <|| Keylogger And Clipboard ||> Disabled

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.cappac.com.tr
Port:
587
Username:
[email protected]
Password:
aTlcLVD6nhEE

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
stealer spyware masslogger

MassLogger Main Payload 7 IoCs

resource	yara_rule
behavioral1/files/0x00040000000131ae-3.dat	family_masslogger
behavioral1/files/0x00040000000131ae-5.dat	family_masslogger
behavioral1/files/0x00040000000131ae-6.dat	family_masslogger
behavioral1/memory/1108-20-0x0000000000400000-0x000000000049A000-memory.dmp	family_masslogger
behavioral1/memory/1108-21-0x000000000049419E-mapping.dmp	family_masslogger
behavioral1/memory/1108-23-0x0000000000400000-0x000000000049A000-memory.dmp	family_masslogger
behavioral1/memory/1108-24-0x0000000000400000-0x000000000049A000-memory.dmp	family_masslogger

MassLogger log file 1 IoCs

Detects a log file produced by MassLogger.

yara_rule
masslogger_log_file

AgentTesla Payload 4 IoCs

resource	yara_rule
behavioral1/memory/1840-10-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1840-11-0x000000000044712E-mapping.dmp	family_agenttesla
behavioral1/memory/1840-13-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1840-14-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Executes dropped EXE 3 IoCs

pid	Process
932	chromee.exe
1840	InstallUtil.exe
1108	InstallUtil.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Control Panel\International\Geo\Nation	InstallUtil.exe

Loads dropped DLL 3 IoCs

pid	Process
316	hesaphareketi000001,pdf.exe
316	hesaphareketi000001,pdf.exe
932	chromee.exe

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\chromee = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\chromee.exe"	reg.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
5	api.ipify.org

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 316 set thread context of 1840	316	hesaphareketi000001,pdf.exe	28
PID 932 set thread context of 1108	932	chromee.exe	32

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
316	hesaphareketi000001,pdf.exe
316	hesaphareketi000001,pdf.exe
316	hesaphareketi000001,pdf.exe
932	chromee.exe
1840	InstallUtil.exe
1840	InstallUtil.exe
932	chromee.exe
932	chromee.exe
1108	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	316	hesaphareketi000001,pdf.exe
Token: SeDebugPrivilege	932	chromee.exe
Token: SeDebugPrivilege	1840	InstallUtil.exe
Token: SeDebugPrivilege	1108	InstallUtil.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 316 wrote to memory of 932	316	hesaphareketi000001,pdf.exe	24
PID 316 wrote to memory of 932	316	hesaphareketi000001,pdf.exe	24
PID 316 wrote to memory of 932	316	hesaphareketi000001,pdf.exe	24
PID 316 wrote to memory of 932	316	hesaphareketi000001,pdf.exe	24
PID 316 wrote to memory of 1052	316	hesaphareketi000001,pdf.exe	25
PID 316 wrote to memory of 1052	316	hesaphareketi000001,pdf.exe	25
PID 316 wrote to memory of 1052	316	hesaphareketi000001,pdf.exe	25
PID 316 wrote to memory of 1052	316	hesaphareketi000001,pdf.exe	25
PID 1052 wrote to memory of 1700	1052	cmd.exe	27
PID 1052 wrote to memory of 1700	1052	cmd.exe	27
PID 1052 wrote to memory of 1700	1052	cmd.exe	27
PID 1052 wrote to memory of 1700	1052	cmd.exe	27
PID 316 wrote to memory of 1840	316	hesaphareketi000001,pdf.exe	28
PID 316 wrote to memory of 1840	316	hesaphareketi000001,pdf.exe	28
PID 316 wrote to memory of 1840	316	hesaphareketi000001,pdf.exe	28
PID 316 wrote to memory of 1840	316	hesaphareketi000001,pdf.exe	28
PID 316 wrote to memory of 1840	316	hesaphareketi000001,pdf.exe	28
PID 316 wrote to memory of 1840	316	hesaphareketi000001,pdf.exe	28
PID 316 wrote to memory of 1840	316	hesaphareketi000001,pdf.exe	28
PID 316 wrote to memory of 1840	316	hesaphareketi000001,pdf.exe	28
PID 316 wrote to memory of 1840	316	hesaphareketi000001,pdf.exe	28
PID 316 wrote to memory of 1840	316	hesaphareketi000001,pdf.exe	28
PID 316 wrote to memory of 1840	316	hesaphareketi000001,pdf.exe	28
PID 316 wrote to memory of 1840	316	hesaphareketi000001,pdf.exe	28
PID 932 wrote to memory of 1108	932	chromee.exe	32
PID 932 wrote to memory of 1108	932	chromee.exe	32
PID 932 wrote to memory of 1108	932	chromee.exe	32
PID 932 wrote to memory of 1108	932	chromee.exe	32
PID 932 wrote to memory of 1108	932	chromee.exe	32
PID 932 wrote to memory of 1108	932	chromee.exe	32
PID 932 wrote to memory of 1108	932	chromee.exe	32
PID 932 wrote to memory of 1108	932	chromee.exe	32
PID 932 wrote to memory of 1108	932	chromee.exe	32
PID 932 wrote to memory of 1108	932	chromee.exe	32
PID 932 wrote to memory of 1108	932	chromee.exe	32
PID 932 wrote to memory of 1108	932	chromee.exe	32

C:\Users\Admin\AppData\Local\Temp\hesaphareketi000001,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\hesaphareketi000001,pdf.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:316
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\chromee.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\chromee.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:932
- - C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
    "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v chromee /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\chromee.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1052
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v chromee /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\chromee.exe"
    3⤵
    - Adds Run key to start application
    PID:1700
- C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
  "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1840

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1108-20-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1108-23-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1108-24-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/1840-13-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1840-14-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1840-10-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download