agenttesla | bd5e8953da5dd6dff83154edb1c7229ca6c6f97be74ca1a0f6d25f876b424c13

General

Target
PURCHASE ORDER KALI-1374W.exe
Size 509KB
Sample201109-25m788ygex
SHA256 bd5e8953da5dd6dff83154edb1c7229ca6c6f97be74ca1a0f6d25f876b424c13
MD5 c740fe0ef6070b901851c00ea07b4e1a
SHA1 de26df6f5c4475bbcc1311b48b35ca4c213bccc8
SHA512 3a91dcaa9b0d316f66cf6e4dbb1d861d6003848c4d72a4bb49decb0e6c932e39a5e8fd0d7c9060ee28d17628d80da0e4498aa16912c3ab2dd9eb14d5bd3791dc
MD5 SHA1 SHA512

Score

10^/10

agenttesla coreentity evasion keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.pptoursperu.com
Port
587
Username
[email protected]
Password
mailppt2019-

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

resource	yara_rule
behavioral1/memory/1808-3-0x00000000004A0000-0x00000000004A3000-memory.dmp	coreentity

AgentTesla Payload 4 IoCs

resource	yara_rule
behavioral1/memory/1428-5-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1428-6-0x000000000044ABAE-mapping.dmp	family_agenttesla
behavioral1/memory/1428-8-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1428-7-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla

rezer0 1 IoCs

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

rezer0

resource	yara_rule
behavioral1/memory/1808-4-0x0000000004750000-0x00000000047A1000-memory.dmp	rezer0

Disables Task Manager via registry modification
evasion

Drops file in Drivers directory 1 IoCs

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1808 set thread context of 1428	1808	PURCHASE ORDER KALI-1374W.exe	26

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1044	REG.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1428	RegSvcs.exe
1428	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1428	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1808 wrote to memory of 1428	1808	PURCHASE ORDER KALI-1374W.exe	26
PID 1808 wrote to memory of 1428	1808	PURCHASE ORDER KALI-1374W.exe	26
PID 1808 wrote to memory of 1428	1808	PURCHASE ORDER KALI-1374W.exe	26
PID 1808 wrote to memory of 1428	1808	PURCHASE ORDER KALI-1374W.exe	26
PID 1808 wrote to memory of 1428	1808	PURCHASE ORDER KALI-1374W.exe	26
PID 1808 wrote to memory of 1428	1808	PURCHASE ORDER KALI-1374W.exe	26
PID 1808 wrote to memory of 1428	1808	PURCHASE ORDER KALI-1374W.exe	26
PID 1808 wrote to memory of 1428	1808	PURCHASE ORDER KALI-1374W.exe	26
PID 1808 wrote to memory of 1428	1808	PURCHASE ORDER KALI-1374W.exe	26
PID 1808 wrote to memory of 1428	1808	PURCHASE ORDER KALI-1374W.exe	26
PID 1808 wrote to memory of 1428	1808	PURCHASE ORDER KALI-1374W.exe	26
PID 1808 wrote to memory of 1428	1808	PURCHASE ORDER KALI-1374W.exe	26
PID 1428 wrote to memory of 1044	1428	RegSvcs.exe	31
PID 1428 wrote to memory of 1044	1428	RegSvcs.exe	31
PID 1428 wrote to memory of 1044	1428	RegSvcs.exe	31
PID 1428 wrote to memory of 1044	1428	RegSvcs.exe	31
PID 1428 wrote to memory of 560	1428	RegSvcs.exe	33
PID 1428 wrote to memory of 560	1428	RegSvcs.exe	33
PID 1428 wrote to memory of 560	1428	RegSvcs.exe	33
PID 1428 wrote to memory of 560	1428	RegSvcs.exe	33

C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER KALI-1374W.exe
"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER KALI-1374W.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1808
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Drops file in Drivers directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1428
- - 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:1044
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    PID:560

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1428-5-0x0000000000400000-0x0000000000450000-memory.dmp

Download

memory/1428-8-0x0000000000400000-0x0000000000450000-memory.dmp

Download

memory/1428-7-0x0000000000400000-0x0000000000450000-memory.dmp

Download

memory/1428-9-0x0000000073980000-0x000000007406E000-memory.dmp

Download

memory/1808-0-0x0000000073980000-0x000000007406E000-memory.dmp

Download

memory/1808-1-0x0000000000D10000-0x0000000000D11000-memory.dmp

Download

memory/1808-3-0x00000000004A0000-0x00000000004A3000-memory.dmp

Download

memory/1808-4-0x0000000004750000-0x00000000047A1000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads