agenttesla | 7eeb8828ee5ed169af5f8ce9cd07e6a4bc3fcb2e548e9e01378a02fbcee7c680

General

Target

PURCHASE LIST.exe
Size

509KB
MD5

84bd92a1862e1c85ce69e671f74fa6e1
SHA1

7fa8144f716efef6b201b12672aa21882f6e1428
SHA256

07d6953a68436385a5c78086ae9cf68fb5f5e44adeb6333f84aaa0ffd94a0ed5
SHA512

ae488f9a861febe9fd96b9b44e8faf91cf8dc2c2a49f32e400a7b6e58a68a46a75a640a64985ba47818af21e7687be43676616ca7d788a71bb4f80cd5c33da04

Score

10^/10

agenttesla snakebot collection coreentity evasion keylogger rezer0 snakebot spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.mentorpublishing.co.ke
Port:
587
Username:
[email protected]
Password:
Sam072493

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/2028-56-0x0000000000470000-0x0000000000478000-memory.dmp	coreentity

SnakeBOT
SnakeBOT is a heavily obfuscated .NET downloader.
snakebot

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1160-61-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1160-62-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1160-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1160-64-0x000000000044CD3E-mapping.dmp	family_agenttesla
behavioral1/memory/1160-66-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1160-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

Contains SnakeBOT related strings 1 IoCs

snakebot

Processes:

resource	yara_rule
behavioral1/memory/2028-54-0x00000000003E0000-0x0000000000468000-memory.dmp	snakebot_strings

ReZer0 packer 1 IoCs

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

rezer0

Processes:

resource	yara_rule
behavioral1/memory/2028-57-0x00000000048D0000-0x000000000492A000-memory.dmp	rezer0

Disables Task Manager via registry modification
evasion
Drops file in Drivers directory 1 IoCs

Processes:

RegSvcs.exe

description ioc process

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

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegSvcs.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

PURCHASE LIST.exe

description pid process target process

PID 2028 set thread context of 1160 2028 PURCHASE LIST.exe RegSvcs.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1352 REG.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

1160 RegSvcs.exe
1160 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PURCHASE LIST.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 2028 PURCHASE LIST.exe
Token: SeDebugPrivilege 1160 RegSvcs.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

PURCHASE LIST.exe

pid process

2028 PURCHASE LIST.exe
2028 PURCHASE LIST.exe

description	pid	process	target process
PID 2028 set thread context of 1160	2028	PURCHASE LIST.exe	RegSvcs.exe

pid	process
1352	REG.exe

pid	process
1160	RegSvcs.exe
1160	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	2028	PURCHASE LIST.exe
Token: SeDebugPrivilege	1160	RegSvcs.exe

pid	process
2028	PURCHASE LIST.exe
2028	PURCHASE LIST.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

PURCHASE LIST.exeRegSvcs.exe

description	pid	process	target process
PID 2028 wrote to memory of 1160	2028	PURCHASE LIST.exe	RegSvcs.exe
PID 2028 wrote to memory of 1160	2028	PURCHASE LIST.exe	RegSvcs.exe
PID 2028 wrote to memory of 1160	2028	PURCHASE LIST.exe	RegSvcs.exe
PID 2028 wrote to memory of 1160	2028	PURCHASE LIST.exe	RegSvcs.exe
PID 2028 wrote to memory of 1160	2028	PURCHASE LIST.exe	RegSvcs.exe
PID 2028 wrote to memory of 1160	2028	PURCHASE LIST.exe	RegSvcs.exe
PID 2028 wrote to memory of 1160	2028	PURCHASE LIST.exe	RegSvcs.exe
PID 2028 wrote to memory of 1160	2028	PURCHASE LIST.exe	RegSvcs.exe
PID 2028 wrote to memory of 1160	2028	PURCHASE LIST.exe	RegSvcs.exe
PID 2028 wrote to memory of 1160	2028	PURCHASE LIST.exe	RegSvcs.exe
PID 2028 wrote to memory of 1160	2028	PURCHASE LIST.exe	RegSvcs.exe
PID 2028 wrote to memory of 1160	2028	PURCHASE LIST.exe	RegSvcs.exe
PID 1160 wrote to memory of 1352	1160	RegSvcs.exe	REG.exe
PID 1160 wrote to memory of 1352	1160	RegSvcs.exe	REG.exe
PID 1160 wrote to memory of 1352	1160	RegSvcs.exe	REG.exe
PID 1160 wrote to memory of 1352	1160	RegSvcs.exe	REG.exe
PID 1160 wrote to memory of 2016	1160	RegSvcs.exe	netsh.exe
PID 1160 wrote to memory of 2016	1160	RegSvcs.exe	netsh.exe
PID 1160 wrote to memory of 2016	1160	RegSvcs.exe	netsh.exe
PID 1160 wrote to memory of 2016	1160	RegSvcs.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\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-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe
"C:\Users\Admin\AppData\Local\Temp\PURCHASE LIST.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.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:1160
- - 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:1352
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    PID:2016

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1160-64-0x000000000044CD3E-mapping.dmp

Download
memory/1160-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1160-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1160-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1160-58-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1160-59-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1160-66-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1160-62-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1352-70-0x0000000000000000-mapping.dmp

Download
memory/2016-71-0x0000000000000000-mapping.dmp

Download
memory/2028-55-0x0000000075FE1000-0x0000000075FE3000-memory.dmp

Filesize
8KB

Download
memory/2028-54-0x00000000003E0000-0x0000000000468000-memory.dmp

Filesize
544KB

Download
memory/2028-57-0x00000000048D0000-0x000000000492A000-memory.dmp

Filesize
360KB

Download
memory/2028-56-0x0000000000470000-0x0000000000478000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads