agenttesla | a36c5b4ff43dd3b73a70cbc1c7b264d87d10c3f8bb3d7c533219d83e0575b306

General

Target

Invoice.exe
Size

1.4MB
MD5

d33b39c996adec836b65b860fa033634
SHA1

1b9e13e746e7ea7a0c9d699ea1117eb2b29558d6
SHA256

89203c9d1ba98fde5ac5baad12944bc68d9a8b1a21a0bb61526daaca06d7b189
SHA512

0e79ed572abfe3408279ebe8d47c5fb26c6a608ef44380b23dd3dafab878671473b2091e4d7fac5ac00a1e2194ce7cbf74c86ae3bf41ff4c1641c5888b7da49e

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.tejoofashions.com
Port:
587
Username:
[email protected]
Password:
OmiCron#2019

Signatures

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

AgentTesla Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3964-127-0x0000000000400000-0x0000000000466000-memory.dmp	family_agenttesla
behavioral2/memory/3964-128-0x00000000004618AE-mapping.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-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\WCPCe = "C:\\Users\\Admin\\AppData\\Roaming\\WCPCe\\WCPCe.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Invoice.exe

description pid process target process

PID 3680 set thread context of 3964 3680 Invoice.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
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

3308 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Invoice.exeRegSvcs.exe

pid process

3680 Invoice.exe
3964 RegSvcs.exe
3964 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Invoice.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 3680 Invoice.exe
Token: SeDebugPrivilege 3964 RegSvcs.exe

description	pid	process	target process
PID 3680 set thread context of 3964	3680	Invoice.exe	RegSvcs.exe

pid	process
3308	schtasks.exe

pid	process
3680	Invoice.exe
3964	RegSvcs.exe
3964	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	3680	Invoice.exe
Token: SeDebugPrivilege	3964	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Invoice.exe

description	pid	process	target process
PID 3680 wrote to memory of 3308	3680	Invoice.exe	schtasks.exe
PID 3680 wrote to memory of 3308	3680	Invoice.exe	schtasks.exe
PID 3680 wrote to memory of 3308	3680	Invoice.exe	schtasks.exe
PID 3680 wrote to memory of 3964	3680	Invoice.exe	RegSvcs.exe
PID 3680 wrote to memory of 3964	3680	Invoice.exe	RegSvcs.exe
PID 3680 wrote to memory of 3964	3680	Invoice.exe	RegSvcs.exe
PID 3680 wrote to memory of 3964	3680	Invoice.exe	RegSvcs.exe
PID 3680 wrote to memory of 3964	3680	Invoice.exe	RegSvcs.exe
PID 3680 wrote to memory of 3964	3680	Invoice.exe	RegSvcs.exe
PID 3680 wrote to memory of 3964	3680	Invoice.exe	RegSvcs.exe
PID 3680 wrote to memory of 3964	3680	Invoice.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3680

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GJSgauNIlYrRR" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBFEA.tmp"
2⤵
- Creates scheduled task(s)
PID:3308

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
PID:3964

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpBFEA.tmp

MD5
c54a84f41fc12d7409ead4c0dbe58f54

SHA1
e53a91bae7541df94062ab2f2775fae007d89e47

SHA256
31013a1a454017816d260f83ae2013052b293565a95962abb0a86ea45b49213d

SHA512
39b042e924aca849a69edc646200509e0c120a0d99c0879cff2ea7ce968892aba0b198d188caacf105911bfae7be052226650e8b5f2b3ca3f17ca0f85b73d6c6

Download Submit
memory/3308-125-0x0000000000000000-mapping.dmp

Download
memory/3680-123-0x0000000005BA0000-0x0000000005C6E000-memory.dmp

Filesize
824KB

Download
memory/3680-124-0x0000000005C70000-0x0000000005CFF000-memory.dmp

Filesize
572KB

Download
memory/3680-119-0x0000000004F90000-0x0000000004F91000-memory.dmp

Filesize
4KB

Download
memory/3680-120-0x0000000005680000-0x0000000005681000-memory.dmp

Filesize
4KB

Download
memory/3680-121-0x000000000E170000-0x000000000E171000-memory.dmp

Filesize
4KB

Download
memory/3680-122-0x0000000005690000-0x0000000005695000-memory.dmp

Filesize
20KB

Download
memory/3680-114-0x0000000000B10000-0x0000000000B11000-memory.dmp

Filesize
4KB

Download
memory/3680-118-0x000000000AA10000-0x000000000AA11000-memory.dmp

Filesize
4KB

Download
memory/3680-117-0x000000000AF10000-0x000000000AF11000-memory.dmp

Filesize
4KB

Download
memory/3680-116-0x00000000055A0000-0x000000000566A000-memory.dmp

Filesize
808KB

Download
memory/3964-127-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/3964-128-0x00000000004618AE-mapping.dmp

Download
memory/3964-133-0x00000000053C0000-0x00000000053C1000-memory.dmp

Filesize
4KB

Download
memory/3964-134-0x0000000005860000-0x0000000005861000-memory.dmp

Filesize
4KB

Download
memory/3964-135-0x0000000005130000-0x0000000005131000-memory.dmp

Filesize
4KB

Download
memory/3964-138-0x0000000005131000-0x0000000005132000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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