agenttesla | 9a597f3b7ec4bb4a3e54c966b95ca6cb543ca467fbc9397a66713187d77a7b97

General

Target

WN4gbQOiEGOnFMa.exe
Size

601KB
MD5

a4b94521170a0d99c8a9f0fe8c648561
SHA1

b7a942b4c7704562e23d2e888a07a026fb49fe7d
SHA256

9a597f3b7ec4bb4a3e54c966b95ca6cb543ca467fbc9397a66713187d77a7b97
SHA512

0e4947fe3b205793521344ce09e9f9d67359d6166a1c954fc227cd1d3df5505b1c615eff7e5fbd1e64a7e2e845751e03603ef0c11ff107b63933a43fbc0a9a1b

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
a2plcpnl0347.prod.iad2.secureserver.net
Port:
587
Username:
marketing@eximindiacorporation.com
Password:
Admin_123

Signatures

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

AgentTesla Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3116-125-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/3116-126-0x000000000043766E-mapping.dmp	family_agenttesla
behavioral2/memory/3116-131-0x0000000005090000-0x000000000558E000-memory.dmp	family_agenttesla

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\AvrzbM = "C:\\Users\\Admin\\AppData\\Roaming\\AvrzbM\\AvrzbM.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

WN4gbQOiEGOnFMa.exe

description pid process target process

PID 64 set thread context of 3116 64 WN4gbQOiEGOnFMa.exe RegSvcs.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

WN4gbQOiEGOnFMa.exeRegSvcs.exe

pid process

64 WN4gbQOiEGOnFMa.exe
64 WN4gbQOiEGOnFMa.exe
64 WN4gbQOiEGOnFMa.exe
64 WN4gbQOiEGOnFMa.exe
3116 RegSvcs.exe
3116 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

WN4gbQOiEGOnFMa.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 64 WN4gbQOiEGOnFMa.exe
Token: SeDebugPrivilege 3116 RegSvcs.exe

description	pid	process	target process
PID 64 set thread context of 3116	64	WN4gbQOiEGOnFMa.exe	RegSvcs.exe

pid	process
64	WN4gbQOiEGOnFMa.exe
64	WN4gbQOiEGOnFMa.exe
64	WN4gbQOiEGOnFMa.exe
64	WN4gbQOiEGOnFMa.exe
3116	RegSvcs.exe
3116	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	64	WN4gbQOiEGOnFMa.exe
Token: SeDebugPrivilege	3116	RegSvcs.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

WN4gbQOiEGOnFMa.exe

description	pid	process	target process
PID 64 wrote to memory of 3116	64	WN4gbQOiEGOnFMa.exe	RegSvcs.exe
PID 64 wrote to memory of 3116	64	WN4gbQOiEGOnFMa.exe	RegSvcs.exe
PID 64 wrote to memory of 3116	64	WN4gbQOiEGOnFMa.exe	RegSvcs.exe
PID 64 wrote to memory of 3116	64	WN4gbQOiEGOnFMa.exe	RegSvcs.exe
PID 64 wrote to memory of 3116	64	WN4gbQOiEGOnFMa.exe	RegSvcs.exe
PID 64 wrote to memory of 3116	64	WN4gbQOiEGOnFMa.exe	RegSvcs.exe
PID 64 wrote to memory of 3116	64	WN4gbQOiEGOnFMa.exe	RegSvcs.exe
PID 64 wrote to memory of 3116	64	WN4gbQOiEGOnFMa.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\WN4gbQOiEGOnFMa.exe
"C:\Users\Admin\AppData\Local\Temp\WN4gbQOiEGOnFMa.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:64

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3116

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/64-114-0x00000000008B0000-0x00000000008B1000-memory.dmp

Filesize
4KB

Download
memory/64-116-0x0000000005670000-0x0000000005671000-memory.dmp

Filesize
4KB

Download
memory/64-117-0x0000000005210000-0x0000000005211000-memory.dmp

Filesize
4KB

Download
memory/64-118-0x00000000052B0000-0x00000000052B1000-memory.dmp

Filesize
4KB

Download
memory/64-119-0x0000000002CD0000-0x0000000002CD1000-memory.dmp

Filesize
4KB

Download
memory/64-120-0x0000000005190000-0x0000000005191000-memory.dmp

Filesize
4KB

Download
memory/64-121-0x0000000005CB0000-0x0000000005CB9000-memory.dmp

Filesize
36KB

Download
memory/64-122-0x000000007EAC0000-0x000000007EAC1000-memory.dmp

Filesize
4KB

Download
memory/64-123-0x0000000001190000-0x0000000001208000-memory.dmp

Filesize
480KB

Download
memory/64-124-0x0000000008480000-0x00000000084BC000-memory.dmp

Filesize
240KB

Download
memory/3116-125-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3116-126-0x000000000043766E-mapping.dmp

Download
memory/3116-131-0x0000000005090000-0x000000000558E000-memory.dmp

Filesize
5.0MB

Download
memory/3116-132-0x0000000005510000-0x0000000005511000-memory.dmp

Filesize
4KB

Download
memory/3116-133-0x0000000005DF0000-0x0000000005DF1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads