agenttesla | 27985ef546ffd6c9239b45bce432f59593c54591d3c2c306ffc5b485d02cf03c

General

Target

COPY OF N-N.exe
Size

725KB
MD5

e835f5a976ab1d8dd4e4e10813dd2a67
SHA1

68d789fcc36fdd8eb5cbb5b58c55cb1d48174c24
SHA256

c1269286a5b767fbd0b90c97cc06279b08ed094069932c8d17acc4c3144a218b
SHA512

269eac258dd1b830f165b253be7cd533f6a99266fcec1e0c4367eb84098cea0c66bd1b40b0788e57de97e2c387240948d2145abb83230bce1b719360831d080b

Score

10^/10

agenttesla evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.medamanagement.com
Port:
587
Username:
info@medamanagement.com
Password:
20@radihX21@Meda

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/3872-127-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/3872-128-0x000000000043761E-mapping.dmp	family_agenttesla
behavioral2/memory/3872-134-0x00000000052F0000-0x00000000057EE000-memory.dmp	family_agenttesla
behavioral2/memory/3872-139-0x00000000052F0000-0x00000000057EE000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Drops file in Drivers directory 1 IoCs

Processes:

COPY OF N-N.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts COPY OF N-N.exe
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	COPY OF N-N.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

COPY OF N-N.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	COPY OF N-N.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	COPY OF N-N.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

COPY OF N-N.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"	COPY OF N-N.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

Processes:

COPY OF N-N.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	COPY OF N-N.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	COPY OF N-N.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

COPY OF N-N.exe

description pid process target process

PID 3904 set thread context of 3872 3904 COPY OF N-N.exe COPY OF N-N.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

2332 schtasks.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

COPY OF N-N.exeCOPY OF N-N.exe

pid process

3904 COPY OF N-N.exe
3904 COPY OF N-N.exe
3904 COPY OF N-N.exe
3872 COPY OF N-N.exe
3872 COPY OF N-N.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

COPY OF N-N.exeCOPY OF N-N.exe

description pid process

Token: SeDebugPrivilege 3904 COPY OF N-N.exe
Token: SeDebugPrivilege 3872 COPY OF N-N.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

COPY OF N-N.exe

pid process

3872 COPY OF N-N.exe

description	pid	process	target process
PID 3904 set thread context of 3872	3904	COPY OF N-N.exe	COPY OF N-N.exe

pid	process
2332	schtasks.exe

pid	process
3904	COPY OF N-N.exe
3904	COPY OF N-N.exe
3904	COPY OF N-N.exe
3872	COPY OF N-N.exe
3872	COPY OF N-N.exe

description	pid	process
Token: SeDebugPrivilege	3904	COPY OF N-N.exe
Token: SeDebugPrivilege	3872	COPY OF N-N.exe

pid	process
3872	COPY OF N-N.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

COPY OF N-N.exe

description	pid	process	target process
PID 3904 wrote to memory of 2332	3904	COPY OF N-N.exe	schtasks.exe
PID 3904 wrote to memory of 2332	3904	COPY OF N-N.exe	schtasks.exe
PID 3904 wrote to memory of 2332	3904	COPY OF N-N.exe	schtasks.exe
PID 3904 wrote to memory of 3928	3904	COPY OF N-N.exe	COPY OF N-N.exe
PID 3904 wrote to memory of 3928	3904	COPY OF N-N.exe	COPY OF N-N.exe
PID 3904 wrote to memory of 3928	3904	COPY OF N-N.exe	COPY OF N-N.exe
PID 3904 wrote to memory of 3872	3904	COPY OF N-N.exe	COPY OF N-N.exe
PID 3904 wrote to memory of 3872	3904	COPY OF N-N.exe	COPY OF N-N.exe
PID 3904 wrote to memory of 3872	3904	COPY OF N-N.exe	COPY OF N-N.exe
PID 3904 wrote to memory of 3872	3904	COPY OF N-N.exe	COPY OF N-N.exe
PID 3904 wrote to memory of 3872	3904	COPY OF N-N.exe	COPY OF N-N.exe
PID 3904 wrote to memory of 3872	3904	COPY OF N-N.exe	COPY OF N-N.exe
PID 3904 wrote to memory of 3872	3904	COPY OF N-N.exe	COPY OF N-N.exe
PID 3904 wrote to memory of 3872	3904	COPY OF N-N.exe	COPY OF N-N.exe

C:\Users\Admin\AppData\Local\Temp\COPY OF N-N.exe
"C:\Users\Admin\AppData\Local\Temp\COPY OF N-N.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3904

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YBHvzdfGpm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9B4B.tmp"
2⤵
- Creates scheduled task(s)
PID:2332

C:\Users\Admin\AppData\Local\Temp\COPY OF N-N.exe
"{path}"
2⤵
PID:3928

C:\Users\Admin\AppData\Local\Temp\COPY OF N-N.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:3872

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

Virtualization/Sandbox Evasion

2

T1497

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\COPY OF N-N.exe.log
MD5
12557ab909651a6f99d3503d614d3562

SHA1
b86745768059a514bea3a438e1e96086af463246

SHA256
9589c869703e95d40d5870c60f66d8460f7914e9fe8dd579533c84148112babd

SHA512
10cdb2fa7cf054af937b4aeddfe16fe755d6b09db5a51f7052adbf472b4b435e16c141f3712762f3b67f990c3efcfa47659576988e321214c747d6cd98e75521

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9B4B.tmp
MD5
1f10cd1e2d3263374c42d10a9a57f064

SHA1
fd4786ae917fc60910a0d95fb98da3204152ead7

SHA256
73917f96e566f51844eb74a29a6ffed5e6686e38f37c373f16158d127ddb3de5

SHA512
c123cee666c407cb465e9d5869644518d35e920773b2256b4e058b8bb67d7974d77feee705c834d96a5cbf0d3508b4004223df6614c7d6a6cd6d8ef2be42f25b

Download Submit
memory/2332-125-0x0000000000000000-mapping.dmp

Download
memory/3872-139-0x00000000052F0000-0x00000000057EE000-memory.dmp

Filesize
5.0MB

Download
memory/3872-135-0x0000000005430000-0x0000000005431000-memory.dmp

Filesize
4KB

Download
memory/3872-134-0x00000000052F0000-0x00000000057EE000-memory.dmp

Filesize
5.0MB

Download
memory/3872-128-0x000000000043761E-mapping.dmp

Download
memory/3872-127-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3904-119-0x00000000077E0000-0x0000000007CDE000-memory.dmp

Filesize
5.0MB

Download
memory/3904-124-0x0000000005EF0000-0x0000000005EF1000-memory.dmp

Filesize
4KB

Download
memory/3904-123-0x0000000005E10000-0x0000000005E68000-memory.dmp

Filesize
352KB

Download
memory/3904-122-0x00000000057A0000-0x0000000005832000-memory.dmp

Filesize
584KB

Download
memory/3904-121-0x0000000004DD0000-0x0000000004DDE000-memory.dmp

Filesize
56KB

Download
memory/3904-120-0x0000000009880000-0x0000000009881000-memory.dmp

Filesize
4KB

Download
memory/3904-114-0x0000000000AB0000-0x0000000000AB1000-memory.dmp

Filesize
4KB

Download
memory/3904-118-0x00000000079F0000-0x00000000079F1000-memory.dmp

Filesize
4KB

Download
memory/3904-117-0x0000000007880000-0x0000000007881000-memory.dmp

Filesize
4KB

Download
memory/3904-116-0x0000000007CE0000-0x0000000007CE1000-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