agenttesla | fe4deeb84628c321aff86bc7fd0edfa70aebc3f2dd302c18cf8a5715cb8b09e8

General

Target
e ssssssssss.exe
Size 532KB
Sample201109-b7bs2ckdbs
SHA256 fe4deeb84628c321aff86bc7fd0edfa70aebc3f2dd302c18cf8a5715cb8b09e8
MD5 6a7bea227f0410cd0a29d5ec46dc2162
SHA1 c96ddd2b3e3926b030cb06636c963fa3f05e0f88
SHA512 76c663adb6809e3d817d4e6b3e0900841351b5a48211554ff53d992e0572693e5526cab1a13c7b6f1696011b14059b67dabcf342244224e8f486d40308840c38
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.mkkarakosemobilya.com
Port
587
Username
[email protected]
Password
MKkkmbly@2019

Signatures

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

AgentTesla Payload 13 IoCs

resource	yara_rule
behavioral2/memory/504-9-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral2/memory/504-10-0x000000000044CA5E-mapping.dmp	family_agenttesla
behavioral2/memory/504-20-0x000000000044CA5E-mapping.dmp	family_agenttesla
behavioral2/memory/504-19-0x000000000044CA5E-mapping.dmp	family_agenttesla
behavioral2/memory/504-21-0x000000000044CA5E-mapping.dmp	family_agenttesla
behavioral2/memory/504-22-0x000000000044CA5E-mapping.dmp	family_agenttesla
behavioral2/memory/504-23-0x000000000044CA5E-mapping.dmp	family_agenttesla
behavioral2/memory/504-24-0x000000000044CA5E-mapping.dmp	family_agenttesla
behavioral2/memory/504-25-0x000000000044CA5E-mapping.dmp	family_agenttesla
behavioral2/memory/504-26-0x000000000044CA5E-mapping.dmp	family_agenttesla
behavioral2/memory/504-27-0x000000000044CA5E-mapping.dmp	family_agenttesla
behavioral2/memory/504-28-0x000000000044CA5E-mapping.dmp	family_agenttesla
behavioral2/memory/504-29-0x000000000044CA5E-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\eOqyl = "C:\\EWYCRADZ\\eOqylq\\eOqylqyCC.vbs"	e ssssssssss.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	e ssssssssss.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	e ssssssssss.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 980 set thread context of 504	980	e ssssssssss.exe	81

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3972	504	WerFault.exe	81

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
504	InstallUtil.exe
504	InstallUtil.exe
3972	WerFault.exe
3972	WerFault.exe
3972	WerFault.exe
3972	WerFault.exe
3972	WerFault.exe
3972	WerFault.exe
3972	WerFault.exe
3972	WerFault.exe
3972	WerFault.exe
3972	WerFault.exe
3972	WerFault.exe
3972	WerFault.exe
3972	WerFault.exe
3972	WerFault.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
980	e ssssssssss.exe
980	e ssssssssss.exe
980	e ssssssssss.exe
980	e ssssssssss.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	504	InstallUtil.exe
Token: SeRestorePrivilege	3972	WerFault.exe
Token: SeBackupPrivilege	3972	WerFault.exe
Token: SeDebugPrivilege	3972	WerFault.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 980 wrote to memory of 2000	980	e ssssssssss.exe	78
PID 980 wrote to memory of 2000	980	e ssssssssss.exe	78
PID 980 wrote to memory of 2000	980	e ssssssssss.exe	78
PID 980 wrote to memory of 3812	980	e ssssssssss.exe	79
PID 980 wrote to memory of 3812	980	e ssssssssss.exe	79
PID 980 wrote to memory of 3812	980	e ssssssssss.exe	79
PID 980 wrote to memory of 1376	980	e ssssssssss.exe	80
PID 980 wrote to memory of 1376	980	e ssssssssss.exe	80
PID 980 wrote to memory of 1376	980	e ssssssssss.exe	80
PID 980 wrote to memory of 504	980	e ssssssssss.exe	81
PID 980 wrote to memory of 504	980	e ssssssssss.exe	81
PID 980 wrote to memory of 504	980	e ssssssssss.exe	81
PID 980 wrote to memory of 504	980	e ssssssssss.exe	81

C:\Users\Admin\AppData\Local\Temp\e ssssssssss.exe
"C:\Users\Admin\AppData\Local\Temp\e ssssssssss.exe"
1⤵
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:980
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\\\\Microsoft.NET\\\\Framework\\\\v4.0.30319\\\\InstallUtil.exe"
  2⤵
  PID:2000
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\\\\Microsoft.NET\\\\Framework\\\\v4.0.30319\\\\InstallUtil.exe"
  2⤵
  PID:3812
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\\\\Microsoft.NET\\\\Framework\\\\v4.0.30319\\\\InstallUtil.exe"
  2⤵
  PID:1376
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\\\\Microsoft.NET\\\\Framework\\\\v4.0.30319\\\\InstallUtil.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:504
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 504 -s 1432
    3⤵
    - Program crash
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3972

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/504-9-0x0000000000400000-0x0000000000452000-memory.dmp

Download

memory/504-11-0x0000000073310000-0x00000000739FE000-memory.dmp

Download

memory/504-15-0x0000000005730000-0x0000000005731000-memory.dmp

Download

memory/504-16-0x0000000005800000-0x0000000005801000-memory.dmp

Download

memory/504-17-0x00000000062C0000-0x00000000062C1000-memory.dmp

Download

memory/980-0-0x0000000073310000-0x00000000739FE000-memory.dmp

Download

memory/980-1-0x0000000000B50000-0x0000000000B51000-memory.dmp

Download

memory/980-6-0x0000000005A60000-0x0000000005AB2000-memory.dmp

Download

memory/980-5-0x0000000005AD0000-0x0000000005AD1000-memory.dmp

Download

memory/980-4-0x0000000005570000-0x00000000055C4000-memory.dmp

Download

memory/980-3-0x00000000053D0000-0x0000000005441000-memory.dmp

Download

memory/3972-18-0x0000000004D30000-0x0000000004D31000-memory.dmp

Download

memory/3972-31-0x0000000005460000-0x0000000005461000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads