agenttesla | c6eb2e79f00763ce42b8c4904bfd83869bcc09259ec4fbcbb194730be0f6206c

General

Target

Remittance advice_63653.exe
Size

455KB
MD5

2879721f8b9759ef832a173a4aef7f74
SHA1

e44ce3d55b58edd0fbdb51b78a2db0ca1da35d32
SHA256

24be3b1c3a8a56f3028bb533082f4e8e93f1405b7066e4facde544c22010afa5
SHA512

50014f4ab829d1e5379952ac2a19c46abfd0e73585231a6d6e0078db2218ff92149cc1b1d547eef7295ed3c48ff0866586509d5a2258b3bc2dd3bf1ccabe6625

Score

10^/10

agenttesla evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.microtechlab.in
Port:
587
Username:
[email protected]
Password:
pune@123

Signatures

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

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2444-137-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

Disables Task Manager via registry modification
evasion
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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Remittance advice_63653.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	Remittance advice_63653.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-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Remittance advice_63653.exe

description pid process target process

PID 404 set thread context of 2444 404 Remittance advice_63653.exe RegSvcs.exe
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

Processes:

WerFault.exe

pid pid_target process target process

3328 2444 WerFault.exe RegSvcs.exe
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

Processes:

schtasks.exe

pid process

2088 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

2904 REG.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Remittance advice_63653.exeRegSvcs.exe

pid process

404 Remittance advice_63653.exe
2444 RegSvcs.exe
2444 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Remittance advice_63653.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 404 Remittance advice_63653.exe
Token: SeDebugPrivilege 2444 RegSvcs.exe

description	pid	process	target process
PID 404 set thread context of 2444	404	Remittance advice_63653.exe	RegSvcs.exe

pid	pid_target	process	target process
3328	2444	WerFault.exe	RegSvcs.exe

pid	process
2088	schtasks.exe

pid	process
2904	REG.exe

pid	process
404	Remittance advice_63653.exe
2444	RegSvcs.exe
2444	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	404	Remittance advice_63653.exe
Token: SeDebugPrivilege	2444	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

Remittance advice_63653.exeRegSvcs.exe

description	pid	process	target process
PID 404 wrote to memory of 2088	404	Remittance advice_63653.exe	schtasks.exe
PID 404 wrote to memory of 2088	404	Remittance advice_63653.exe	schtasks.exe
PID 404 wrote to memory of 2088	404	Remittance advice_63653.exe	schtasks.exe
PID 404 wrote to memory of 2444	404	Remittance advice_63653.exe	RegSvcs.exe
PID 404 wrote to memory of 2444	404	Remittance advice_63653.exe	RegSvcs.exe
PID 404 wrote to memory of 2444	404	Remittance advice_63653.exe	RegSvcs.exe
PID 404 wrote to memory of 2444	404	Remittance advice_63653.exe	RegSvcs.exe
PID 404 wrote to memory of 2444	404	Remittance advice_63653.exe	RegSvcs.exe
PID 404 wrote to memory of 2444	404	Remittance advice_63653.exe	RegSvcs.exe
PID 404 wrote to memory of 2444	404	Remittance advice_63653.exe	RegSvcs.exe
PID 404 wrote to memory of 2444	404	Remittance advice_63653.exe	RegSvcs.exe
PID 2444 wrote to memory of 2904	2444	RegSvcs.exe	REG.exe
PID 2444 wrote to memory of 2904	2444	RegSvcs.exe	REG.exe
PID 2444 wrote to memory of 2904	2444	RegSvcs.exe	REG.exe
PID 2444 wrote to memory of 4080	2444	RegSvcs.exe	netsh.exe
PID 2444 wrote to memory of 4080	2444	RegSvcs.exe	netsh.exe
PID 2444 wrote to memory of 4080	2444	RegSvcs.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\Remittance advice_63653.exe
"C:\Users\Admin\AppData\Local\Temp\Remittance advice_63653.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:404

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TixoXNZlqyKY" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4A76.tmp"
2⤵
- Creates scheduled task(s)
PID:2088

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2444

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:2904

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:4080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2444 -s 1596
3⤵
- Program crash
PID:3328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 2444 -ip 2444
1⤵
PID:60

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp4A76.tmp
Filesize
1KB

MD5
97ddc772e8d000cfa1141dfdf4a10e27

SHA1
4744742387ba29bc0c7837b8a3a87c403a97fe89

SHA256
b43aad1fa97c724d3d48dbb3846bd31418c6db000dad963ecb584bd943fd32da

SHA512
3e8df88333914f9e0092b048df136df5b263b91801067b03b71104af54f41862e14a255179a1d27c13672b220dab7ece8ad8a6bffa244f8e862ed3db33862353

Download Submit
memory/404-130-0x00000000001A0000-0x0000000000218000-memory.dmp

Filesize
480KB

Download
memory/404-131-0x0000000004A10000-0x0000000004AAC000-memory.dmp

Filesize
624KB

Download
memory/404-132-0x0000000004B50000-0x0000000004BE2000-memory.dmp

Filesize
584KB

Download
memory/404-133-0x00000000059A0000-0x0000000005F44000-memory.dmp

Filesize
5.6MB

Download
memory/2088-134-0x0000000000000000-mapping.dmp

Download
memory/2444-136-0x0000000000000000-mapping.dmp

Download
memory/2444-137-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2444-138-0x00000000059C0000-0x0000000005A26000-memory.dmp

Filesize
408KB

Download
memory/2444-140-0x00000000066A0000-0x00000000066F0000-memory.dmp

Filesize
320KB

Download
memory/2904-139-0x0000000000000000-mapping.dmp

Download
memory/4080-141-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads