agenttesla | 0b6118c17d89a24512971b9190cf4e76b54e0f02cb06d23d899a17feb9fc64f3

General

Target

New Request.exe
Size

553KB
MD5

abf16f4f5482738b53393f835dd6b9f9
SHA1

989529e1969a6b971a632a176862d5291fc5e2a1
SHA256

0b6118c17d89a24512971b9190cf4e76b54e0f02cb06d23d899a17feb9fc64f3
SHA512

e8dca4d90155c920b11cb2ebf44f65b93374b532a1c5f757937676939f68f254234318aa057b67ae32fdeae31f334f99218c2cb51fed27d3d1bf490317e42e04

Score

10^/10

agenttesla coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
dmkozlovd@yandex.ru
Password:
Starboy@22

Signatures

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

CoreEntity .NET Packer 1 IoCs

A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

coreentity

Processes:

resource	yara_rule
behavioral2/memory/1304-7-0x00000000051D0000-0x00000000051D3000-memory.dmp	coreentity

AgentTesla Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/400-12-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral2/memory/400-13-0x000000000044A6CE-mapping.dmp	family_agenttesla

rezer0 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral2/memory/1304-8-0x000000000B620000-0x000000000B671000-memory.dmp	rezer0

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

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

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

Data from Local System
T1005

Credentials in Files
T1081
Suspicious use of SetThreadContext 1 IoCs

Processes:

New Request.exe

description pid process target process

PID 1304 set thread context of 400 1304 New Request.exe New Request.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

1520 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

New Request.exeNew Request.exe

pid process

1304 New Request.exe
1304 New Request.exe
400 New Request.exe
400 New Request.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

New Request.exeNew Request.exe

description pid process

Token: SeDebugPrivilege 1304 New Request.exe
Token: SeDebugPrivilege 400 New Request.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

New Request.exeNew Request.exe

pid process

1304 New Request.exe
1304 New Request.exe
400 New Request.exe

description	pid	process	target process
PID 1304 set thread context of 400	1304	New Request.exe	New Request.exe

pid	process
1520	schtasks.exe

pid	process
1304	New Request.exe
1304	New Request.exe
400	New Request.exe
400	New Request.exe

description	pid	process
Token: SeDebugPrivilege	1304	New Request.exe
Token: SeDebugPrivilege	400	New Request.exe

pid	process
1304	New Request.exe
1304	New Request.exe
400	New Request.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

New Request.exe

description	pid	process	target process
PID 1304 wrote to memory of 1520	1304	New Request.exe	schtasks.exe
PID 1304 wrote to memory of 1520	1304	New Request.exe	schtasks.exe
PID 1304 wrote to memory of 1520	1304	New Request.exe	schtasks.exe
PID 1304 wrote to memory of 3296	1304	New Request.exe	New Request.exe
PID 1304 wrote to memory of 3296	1304	New Request.exe	New Request.exe
PID 1304 wrote to memory of 3296	1304	New Request.exe	New Request.exe
PID 1304 wrote to memory of 400	1304	New Request.exe	New Request.exe
PID 1304 wrote to memory of 400	1304	New Request.exe	New Request.exe
PID 1304 wrote to memory of 400	1304	New Request.exe	New Request.exe
PID 1304 wrote to memory of 400	1304	New Request.exe	New Request.exe
PID 1304 wrote to memory of 400	1304	New Request.exe	New Request.exe
PID 1304 wrote to memory of 400	1304	New Request.exe	New Request.exe
PID 1304 wrote to memory of 400	1304	New Request.exe	New Request.exe
PID 1304 wrote to memory of 400	1304	New Request.exe	New Request.exe

C:\Users\Admin\AppData\Local\Temp\New Request.exe
"C:\Users\Admin\AppData\Local\Temp\New Request.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1304

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\suCEFwS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8860.tmp"
2⤵
- Creates scheduled task(s)
PID:1520

C:\Users\Admin\AppData\Local\Temp\New Request.exe
"{path}"
2⤵
PID:3296

C:\Users\Admin\AppData\Local\Temp\New Request.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:400

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\New Request.exe.log
MD5
b4f7a6a57cb46d94b72410eb6a6d45a9

SHA1
69f3596ffa027202d391444b769ceea0ae14c5f7

SHA256
23994ebe221a48ea16ebad51ae0d4b47ccd415ae10581f9405e588d4f6c2523b

SHA512
be6da516e54c3a5b33ac2603137a2f8cf8445ff5961dd266faedf3627bae8979953d7ef305538df0151c609917a5b99bf5d023bdd32de50fd5c723950f90db5c

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8860.tmp
MD5
e4fdc7889c907ebc3e851e91c90a3a13

SHA1
b45474abe474fcf704c258efd6f054ce6dcaaafb

SHA256
ee04e8efaa533fbd47a1f7eab683e2b08d7965d187626bb06ec1fafb7621b003

SHA512
cbf20bb5f253009709af2e2ba742f8390a6dbd589fb7539f902af20abc41c3b3ac6153976679d45dd7085fea0d2026cc52e20adc0b1f5d0641f1833ea4e7c0ec

Download Submit
memory/400-21-0x0000000005520000-0x0000000005521000-memory.dmp

Filesize
4KB

Download
memory/400-20-0x0000000005030000-0x0000000005031000-memory.dmp

Filesize
4KB

Download
memory/400-15-0x0000000073C50000-0x000000007433E000-memory.dmp

Filesize
6.9MB

Download
memory/400-13-0x000000000044A6CE-mapping.dmp

Download
memory/400-12-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1304-5-0x0000000007E50000-0x0000000007E51000-memory.dmp

Filesize
4KB

Download
memory/1304-9-0x000000000B730000-0x000000000B731000-memory.dmp

Filesize
4KB

Download
memory/1304-8-0x000000000B620000-0x000000000B671000-memory.dmp

Filesize
324KB

Download
memory/1304-7-0x00000000051D0000-0x00000000051D3000-memory.dmp

Filesize
12KB

Download
memory/1304-6-0x0000000007DD0000-0x0000000007DD1000-memory.dmp

Filesize
4KB

Download
memory/1304-0-0x0000000073C50000-0x000000007433E000-memory.dmp

Filesize
6.9MB

Download
memory/1304-4-0x00000000082B0000-0x00000000082B1000-memory.dmp

Filesize
4KB

Download
memory/1304-3-0x0000000005800000-0x000000000585B000-memory.dmp

Filesize
364KB

Download
memory/1304-1-0x0000000000D80000-0x0000000000D81000-memory.dmp

Filesize
4KB

Download
memory/1520-10-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads