agenttesla | de2e00592af25f6033e0b10dbf2974b1e482ad117118cb726892a89acf2cd47b

Analysis

max time kernel
148s
max time network
74s
platform
windows10_x64
resource
win10v20210408
submitted
15/06/2021, 14:16

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General

Target
Purchase Order#290435.exe
Size 885KB
Sample210615-n884rql5fa
SHA256 de2e00592af25f6033e0b10dbf2974b1e482ad117118cb726892a89acf2cd47b
MD5 047835eb456902b63eb14d9091a0169d
SHA1 94ac99f80936c0d6af4aeb804b6cd03b080a5583
SHA512 26d2e1602e42cf1638cf444daad02cede96974f8b09f55c2ba2d830b48b219bdaec9ffdaf4ef79f8fc2e07c052022f215b7313c60791a9c024659797d8258761
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.bemark-jo.com
Port
587
Username
[email protected]
Password
0799613661.m@

Signatures

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

AgentTesla Payload 3 IoCs

resource	yara_rule
behavioral2/memory/940-127-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/940-128-0x000000000043748E-mapping.dmp	family_agenttesla
behavioral2/memory/940-134-0x0000000004A90000-0x0000000004F8E000-memory.dmp	family_agenttesla

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\zUbDt = "C:\\Users\\Admin\\AppData\\Roaming\\zUbDt\\zUbDt.exe"	Purchase Order#290435.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 856 set thread context of 940	856	Purchase Order#290435.exe	79

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

pid	Process
184	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
940	Purchase Order#290435.exe
940	Purchase Order#290435.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	856	Purchase Order#290435.exe
Token: SeDebugPrivilege	940	Purchase Order#290435.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 856 wrote to memory of 184	856	Purchase Order#290435.exe	77
PID 856 wrote to memory of 184	856	Purchase Order#290435.exe	77
PID 856 wrote to memory of 184	856	Purchase Order#290435.exe	77
PID 856 wrote to memory of 940	856	Purchase Order#290435.exe	79
PID 856 wrote to memory of 940	856	Purchase Order#290435.exe	79
PID 856 wrote to memory of 940	856	Purchase Order#290435.exe	79
PID 856 wrote to memory of 940	856	Purchase Order#290435.exe	79
PID 856 wrote to memory of 940	856	Purchase Order#290435.exe	79
PID 856 wrote to memory of 940	856	Purchase Order#290435.exe	79
PID 856 wrote to memory of 940	856	Purchase Order#290435.exe	79
PID 856 wrote to memory of 940	856	Purchase Order#290435.exe	79

C:\Users\Admin\AppData\Local\Temp\Purchase Order#290435.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Order#290435.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:856
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FCzqrWstFHQj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3842.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:184
- C:\Users\Admin\AppData\Local\Temp\Purchase Order#290435.exe
  "C:\Users\Admin\AppData\Local\Temp\Purchase Order#290435.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:940

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/856-123-0x0000000007540000-0x00000000075C2000-memory.dmp

Download

memory/856-118-0x0000000005810000-0x0000000005811000-memory.dmp

Download

memory/856-120-0x0000000005970000-0x0000000005971000-memory.dmp

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memory/856-121-0x0000000005750000-0x0000000005751000-memory.dmp

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memory/856-122-0x0000000005A30000-0x0000000005A4B000-memory.dmp

Download

memory/856-114-0x0000000000DB0000-0x0000000000DB1000-memory.dmp

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memory/856-124-0x000000000A1D0000-0x000000000A215000-memory.dmp

Download

memory/856-119-0x0000000005740000-0x0000000005741000-memory.dmp

Download

memory/856-117-0x0000000005C70000-0x0000000005C71000-memory.dmp

Download

memory/856-116-0x0000000005660000-0x0000000005661000-memory.dmp

Download

memory/940-127-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/940-134-0x0000000004A90000-0x0000000004F8E000-memory.dmp

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memory/940-135-0x0000000004B90000-0x0000000004B91000-memory.dmp

Download

memory/940-136-0x0000000005580000-0x0000000005581000-memory.dmp

Download