agenttesla | 76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25

General

Target

76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25.exe
Size

780KB
MD5

13d388f4fe68a40f09346acb5aca5bbc
SHA1

d8941b604dcd378532fb4362f878e43c11cca491
SHA256

76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25
SHA512

40eb0639bd678bbcca68dc3b48b0b01b99450344d7a084a25589ee605c4bbc99bf448d62678a961baf345ad0f7cc8586a47a45d3767fe1d0eec4f236255f50d4
SSDEEP

12288:ebFQCaDC1E5HNyrjAHyKTB7wln9vi/9aV+jf3igDiOlymYSmPAQt1lsZC:eb4cnIyKdEe97fni+y+moAbGC

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.privateemail.com
Port:
587
Username:
[email protected]
Password:
12345asdfg@@@@@
Email To:
[email protected]

Signatures

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

Detect packed .NET executables. Mostly AgentTeslaV4. 2 IoCs

resource	yara_rule
behavioral2/memory/1380-28-0x00000000004A0000-0x00000000016F4000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral2/memory/1380-29-0x00000000004A0000-0x00000000004E0000-memory.dmp	INDICATOR_EXE_Packed_GEN01

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 2 IoCs

resource	yara_rule
behavioral2/memory/1380-28-0x00000000004A0000-0x00000000016F4000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral2/memory/1380-29-0x00000000004A0000-0x00000000004E0000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables referencing Windows vault credential objects. Observed in infostealers 2 IoCs

resource	yara_rule
behavioral2/memory/1380-28-0x00000000004A0000-0x00000000016F4000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral2/memory/1380-29-0x00000000004A0000-0x00000000004E0000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 2 IoCs

resource	yara_rule
behavioral2/memory/1380-28-0x00000000004A0000-0x00000000016F4000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral2/memory/1380-29-0x00000000004A0000-0x00000000004E0000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Detects executables referencing many email and collaboration clients. Observed in information stealers 2 IoCs

resource	yara_rule
behavioral2/memory/1380-28-0x00000000004A0000-0x00000000016F4000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral2/memory/1380-29-0x00000000004A0000-0x00000000004E0000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

Detects executables referencing many file transfer clients. Observed in information stealers 2 IoCs

resource	yara_rule
behavioral2/memory/1380-28-0x00000000004A0000-0x00000000016F4000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral2/memory/1380-29-0x00000000004A0000-0x00000000004E0000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

Loads dropped DLL 1 IoCs

pid	Process
548	76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25.exe

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
T1552.001
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
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Laet = "C:\\Users\\Admin\\AppData\\Roaming\\Anthropoidal\\Politimssigt.exe"	76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25.exe

Looks up external IP address via web service 2 IoCs

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

flow	ioc
40	api.ipify.org
41	api.ipify.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1380	76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
548	76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25.exe
1380	76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 548 set thread context of 1380	548	76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25.exe	90

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\daysmen.dia	76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1464	1380	WerFault.exe	90

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1380	76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25.exe
1380	76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
548	76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1380	76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 548 wrote to memory of 1380	548	76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25.exe	90
PID 548 wrote to memory of 1380	548	76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25.exe	90
PID 548 wrote to memory of 1380	548	76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25.exe	90
PID 548 wrote to memory of 1380	548	76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25.exe	90
PID 548 wrote to memory of 1380	548	76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25.exe	90

C:\Users\Admin\AppData\Local\Temp\76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25.exe
"C:\Users\Admin\AppData\Local\Temp\76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:548
- C:\Users\Admin\AppData\Local\Temp\76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25.exe
  "C:\Users\Admin\AppData\Local\Temp\76b2ad6694d96a44a96db9fb25dac7da1ab70a174be812b78fcfe5dc048eba25.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1380
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1380 -s 2340
    3⤵
    - Program crash
    PID:1464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1380 -ip 1380
1⤵
PID:1508

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\nst4F98.tmp\System.dll

Filesize
12KB

MD5
cff85c549d536f651d4fb8387f1976f2

SHA1
d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e

SHA256
8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8

SHA512
531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88

Download Submit
memory/548-21-0x00000000774B1000-0x00000000775D1000-memory.dmp

Filesize
1.1MB

Download
memory/548-22-0x0000000074100000-0x0000000074107000-memory.dmp

Filesize
28KB

Download
memory/1380-23-0x0000000077538000-0x0000000077539000-memory.dmp

Filesize
4KB

Download
memory/1380-24-0x00000000774B1000-0x00000000775D1000-memory.dmp

Filesize
1.1MB

Download
memory/1380-26-0x00000000004A0000-0x00000000016F4000-memory.dmp

Filesize
18.3MB

Download
memory/1380-28-0x00000000004A0000-0x00000000016F4000-memory.dmp

Filesize
18.3MB

Download
memory/1380-29-0x00000000004A0000-0x00000000004E0000-memory.dmp

Filesize
256KB

Download
memory/1380-30-0x00000000741B0000-0x0000000074960000-memory.dmp

Filesize
7.7MB

Download
memory/1380-31-0x00000000397B0000-0x0000000039D54000-memory.dmp

Filesize
5.6MB

Download
memory/1380-32-0x0000000039E90000-0x0000000039EF6000-memory.dmp

Filesize
408KB

Download
memory/1380-33-0x0000000039E80000-0x0000000039E90000-memory.dmp

Filesize
64KB

Download
memory/1380-35-0x00000000741B0000-0x0000000074960000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads