agenttesla | 75b5a3352b14a3d4a5dcbf496a997507edd6d5fdd641fdd37747f21ec6ae7efd

General

Target

Proforma Invoice.exe
Size

673KB
MD5

b1996ce7fe4ba0cfda8796343f8a5b0f
SHA1

0806e4664dc3cf5f1ff3fdac131dfff92e09b830
SHA256

75b5a3352b14a3d4a5dcbf496a997507edd6d5fdd641fdd37747f21ec6ae7efd
SHA512

33c846d73fc0e05d5bbff1cd1d7e243ea27305bb26e81e7115c9e9276440bbdbdb6761b355234e9d6900f9d7d9dc56ef185d58e44dfea8af9cf1cce6a54b4540

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.bzuriyeh.com
Port:
587
Username:
[email protected]
Password:
fk1475369MUM?

Signatures

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

AgentTesla Payload 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2100-127-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/2100-128-0x000000000043762E-mapping.dmp	family_agenttesla
behavioral2/memory/2100-133-0x0000000005230000-0x000000000572E000-memory.dmp	family_agenttesla
behavioral2/memory/2100-138-0x0000000005230000-0x000000000572E000-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-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Proforma Invoice.exe

description pid process target process

PID 2208 set thread context of 2100 2208 Proforma 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

2720 schtasks.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

Proforma Invoice.exeRegSvcs.exe

pid process

2208 Proforma Invoice.exe
2208 Proforma Invoice.exe
2208 Proforma Invoice.exe
2100 RegSvcs.exe
2100 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Proforma Invoice.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 2208 Proforma Invoice.exe
Token: SeDebugPrivilege 2100 RegSvcs.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RegSvcs.exe

pid process

2100 RegSvcs.exe

description	pid	process	target process
PID 2208 set thread context of 2100	2208	Proforma Invoice.exe	RegSvcs.exe

pid	process
2720	schtasks.exe

pid	process
2208	Proforma Invoice.exe
2208	Proforma Invoice.exe
2208	Proforma Invoice.exe
2100	RegSvcs.exe
2100	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	2208	Proforma Invoice.exe
Token: SeDebugPrivilege	2100	RegSvcs.exe

pid	process
2100	RegSvcs.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

Proforma Invoice.exe

description	pid	process	target process
PID 2208 wrote to memory of 2720	2208	Proforma Invoice.exe	schtasks.exe
PID 2208 wrote to memory of 2720	2208	Proforma Invoice.exe	schtasks.exe
PID 2208 wrote to memory of 2720	2208	Proforma Invoice.exe	schtasks.exe
PID 2208 wrote to memory of 3516	2208	Proforma Invoice.exe	RegSvcs.exe
PID 2208 wrote to memory of 3516	2208	Proforma Invoice.exe	RegSvcs.exe
PID 2208 wrote to memory of 3516	2208	Proforma Invoice.exe	RegSvcs.exe
PID 2208 wrote to memory of 2100	2208	Proforma Invoice.exe	RegSvcs.exe
PID 2208 wrote to memory of 2100	2208	Proforma Invoice.exe	RegSvcs.exe
PID 2208 wrote to memory of 2100	2208	Proforma Invoice.exe	RegSvcs.exe
PID 2208 wrote to memory of 2100	2208	Proforma Invoice.exe	RegSvcs.exe
PID 2208 wrote to memory of 2100	2208	Proforma Invoice.exe	RegSvcs.exe
PID 2208 wrote to memory of 2100	2208	Proforma Invoice.exe	RegSvcs.exe
PID 2208 wrote to memory of 2100	2208	Proforma Invoice.exe	RegSvcs.exe
PID 2208 wrote to memory of 2100	2208	Proforma Invoice.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\Proforma Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Proforma Invoice.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2208

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DyZrxifRm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp91E5.tmp"
2⤵
- Creates scheduled task(s)
PID:2720

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:3516

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 SetWindowsHookEx
PID:2100

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\tmp91E5.tmp
MD5
28bd4d2db4af9a2694e831d9ca6fb117

SHA1
1486584f87d6e245e3aca5dcb2c36f545a444001

SHA256
a477223d6dd3952c2a6b1f90d5f009e12e82165b9a48ab1df35080de63637282

SHA512
b226460354fb9d51c61e1605792395d7b80b748ebcec089d430e770f8aa65083c7dda504fd888b3145c5e3022264b35c55ef84e6f0bded9152e946c1b2600f46

Download Submit
memory/2100-138-0x0000000005230000-0x000000000572E000-memory.dmp

Filesize
5.0MB

Download
memory/2100-135-0x0000000005EA0000-0x0000000005EA1000-memory.dmp

Filesize
4KB

Download
memory/2100-134-0x0000000005710000-0x0000000005711000-memory.dmp

Filesize
4KB

Download
memory/2100-133-0x0000000005230000-0x000000000572E000-memory.dmp

Filesize
5.0MB

Download
memory/2100-128-0x000000000043762E-mapping.dmp

Download
memory/2100-127-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2208-119-0x0000000007CC0000-0x0000000007CC1000-memory.dmp

Filesize
4KB

Download
memory/2208-123-0x0000000007FC0000-0x0000000008071000-memory.dmp

Filesize
708KB

Download
memory/2208-124-0x000000000A560000-0x000000000A5D8000-memory.dmp

Filesize
480KB

Download
memory/2208-122-0x000000007EAC0000-0x000000007EAC1000-memory.dmp

Filesize
4KB

Download
memory/2208-120-0x0000000005A30000-0x0000000005F2E000-memory.dmp

Filesize
5.0MB

Download
memory/2208-121-0x0000000005F00000-0x0000000005F05000-memory.dmp

Filesize
20KB

Download
memory/2208-114-0x0000000000FA0000-0x0000000000FA1000-memory.dmp

Filesize
4KB

Download
memory/2208-118-0x0000000005870000-0x0000000005871000-memory.dmp

Filesize
4KB

Download
memory/2208-117-0x0000000005910000-0x0000000005911000-memory.dmp

Filesize
4KB

Download
memory/2208-116-0x0000000005F30000-0x0000000005F31000-memory.dmp

Filesize
4KB

Download
memory/2720-125-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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