agenttesla | 099373f725f9e86956223d5ef4a3a4fcd96f6a531e55447441ce8ccf7be5ee49

Analysis

max time kernel
14s
max time network
114s
platform
windows10_x64
resource
win10v20201028
submitted
09/02/2021, 12:18

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General

Target
purchase_order_pdf.exe
Size 2.4MB
Sample210209-vfbb7rm54s
SHA256 099373f725f9e86956223d5ef4a3a4fcd96f6a531e55447441ce8ccf7be5ee49
MD5 739c3c97cec880fcff0a384914adc5b3
SHA1 41b36b638704b552add7d231ec09e53df1d96772
SHA512 ad3c9cf8c03c5c75e3f811cf6594b13b9b399fae70547f489ce0b2e4adde389026af617c1e39959776e40090eb7b2d81809e0a120182713a2516a7a028ffa8d6
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.tpcdel.com
Port
587
Username
[email protected]
Password
EmlP@2018

Signatures

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

AgentTesla Payload 2 IoCs

resource	yara_rule
behavioral2/memory/3888-10-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral2/memory/3888-11-0x000000000044A95E-mapping.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-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\ZozjABYW = "C:\\Users\\Admin\\AppData\\Roaming\\wPLpKMo\\UGxXf.exe"	regsvcs.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 10 IoCs

pid	Process
1032	purchase_order_pdf.exe
1032	purchase_order_pdf.exe
1032	purchase_order_pdf.exe
1032	purchase_order_pdf.exe
1032	purchase_order_pdf.exe
1032	purchase_order_pdf.exe
1032	purchase_order_pdf.exe
1032	purchase_order_pdf.exe
1032	purchase_order_pdf.exe
1032	purchase_order_pdf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1032 set thread context of 3888	1032	purchase_order_pdf.exe	79

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1872	1032	WerFault.exe	48

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
864	timeout.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
1032	purchase_order_pdf.exe
1032	purchase_order_pdf.exe
1032	purchase_order_pdf.exe
1872	WerFault.exe
1872	WerFault.exe
1872	WerFault.exe
1872	WerFault.exe
1872	WerFault.exe
1872	WerFault.exe
1872	WerFault.exe
1872	WerFault.exe
1872	WerFault.exe
1872	WerFault.exe
1872	WerFault.exe
1872	WerFault.exe
1872	WerFault.exe
1872	WerFault.exe
3888	regsvcs.exe
3888	regsvcs.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1032	purchase_order_pdf.exe
Token: SeRestorePrivilege	1872	WerFault.exe
Token: SeBackupPrivilege	1872	WerFault.exe
Token: SeDebugPrivilege	1872	WerFault.exe
Token: SeDebugPrivilege	3888	regsvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3888	regsvcs.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1032 wrote to memory of 860	1032	purchase_order_pdf.exe	76
PID 1032 wrote to memory of 860	1032	purchase_order_pdf.exe	76
PID 1032 wrote to memory of 860	1032	purchase_order_pdf.exe	76
PID 860 wrote to memory of 864	860	cmd.exe	78
PID 860 wrote to memory of 864	860	cmd.exe	78
PID 860 wrote to memory of 864	860	cmd.exe	78
PID 1032 wrote to memory of 3888	1032	purchase_order_pdf.exe	79
PID 1032 wrote to memory of 3888	1032	purchase_order_pdf.exe	79
PID 1032 wrote to memory of 3888	1032	purchase_order_pdf.exe	79
PID 1032 wrote to memory of 3888	1032	purchase_order_pdf.exe	79
PID 1032 wrote to memory of 3888	1032	purchase_order_pdf.exe	79
PID 1032 wrote to memory of 3888	1032	purchase_order_pdf.exe	79
PID 1032 wrote to memory of 3888	1032	purchase_order_pdf.exe	79
PID 1032 wrote to memory of 3888	1032	purchase_order_pdf.exe	79

C:\Users\Admin\AppData\Local\Temp\purchase_order_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\purchase_order_pdf.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1032
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout 1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:860
- - C:\Windows\SysWOW64\timeout.exe
    timeout 1
    3⤵
    - Delays execution with timeout.exe
    PID:864
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3888
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1032 -s 1440
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1872

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

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1032-2-0x0000000073EE0000-0x00000000745CE000-memory.dmp

Download

memory/1032-3-0x00000000008D0000-0x00000000008D1000-memory.dmp

Download

memory/1032-4-0x0000000005830000-0x0000000005831000-memory.dmp

Download

memory/1032-5-0x00000000053D0000-0x00000000053D1000-memory.dmp

Download

memory/1032-6-0x0000000004E60000-0x0000000004E61000-memory.dmp

Download

memory/1032-7-0x0000000004E70000-0x0000000004EC9000-memory.dmp

Download

memory/1872-25-0x00000000045D0000-0x00000000045D1000-memory.dmp

Download

memory/1872-17-0x00000000045D0000-0x00000000045D1000-memory.dmp

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memory/1872-20-0x00000000045D0000-0x00000000045D1000-memory.dmp

Download

memory/3888-12-0x0000000073EE0000-0x00000000745CE000-memory.dmp

Download

memory/3888-23-0x00000000053C0000-0x00000000053C1000-memory.dmp

Download

memory/3888-24-0x00000000058C0000-0x00000000058C1000-memory.dmp

Download

memory/3888-10-0x0000000000400000-0x0000000000450000-memory.dmp

Download

memory/3888-26-0x0000000005260000-0x0000000005261000-memory.dmp

Download

memory/3888-27-0x00000000067C0000-0x00000000067C1000-memory.dmp

Download

memory/3888-28-0x0000000006500000-0x0000000006501000-memory.dmp

Download

memory/3888-29-0x0000000005261000-0x0000000005262000-memory.dmp

Download