agenttesla | bfb35a39b72e24ce801468a629e64b1806ae5cf8339ade1ee7f145ec4497be93

General

Target

olii.exe
Size

270KB
MD5

ba9d3f63058ea4041190e82e03ffd5f6
SHA1

2bd055abacc3b9ad6f7cb1fa8613c7c44fd21943
SHA256

bfb35a39b72e24ce801468a629e64b1806ae5cf8339ade1ee7f145ec4497be93
SHA512

7e2d37dd5921cda5ebff477308644b1a7f1b2586e6792f17d6f59b911dc04ed91db2569032dd9d5f3fa29e9caefb906153336052c256297354cfe73fc58b5462

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot2046248941:AAG5Z0PyWwtApmPaysBm59voK10ec9Rgnaw/sendDocument

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/3496-116-0x0000000000400000-0x000000000044B000-memory.dmp	family_agenttesla
behavioral2/memory/3496-117-0x000000000040188B-mapping.dmp	family_agenttesla
behavioral2/memory/3496-118-0x00000000047D0000-0x0000000004806000-memory.dmp	family_agenttesla
behavioral2/memory/3496-122-0x0000000000400000-0x000000000044B000-memory.dmp	family_agenttesla

Loads dropped DLL 1 IoCs

Processes:

olii.exe

pid process

3032 olii.exe
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

pid	process
3032	olii.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

olii.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	olii.exe
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	olii.exe
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	olii.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

olii.exe

description pid process target process

PID 3032 set thread context of 3496 3032 olii.exe olii.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

olii.exe

pid process

3496 olii.exe
3496 olii.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

olii.exe

description pid process

Token: SeDebugPrivilege 3496 olii.exe

description	pid	process	target process
PID 3032 set thread context of 3496	3032	olii.exe	olii.exe

pid	process
3496	olii.exe
3496	olii.exe

description	pid	process
Token: SeDebugPrivilege	3496	olii.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

olii.exe

description	pid	process	target process
PID 3032 wrote to memory of 3496	3032	olii.exe	olii.exe
PID 3032 wrote to memory of 3496	3032	olii.exe	olii.exe
PID 3032 wrote to memory of 3496	3032	olii.exe	olii.exe
PID 3032 wrote to memory of 3496	3032	olii.exe	olii.exe
PID 3032 wrote to memory of 3496	3032	olii.exe	olii.exe
PID 3032 wrote to memory of 3496	3032	olii.exe	olii.exe
PID 3032 wrote to memory of 3496	3032	olii.exe	olii.exe
PID 3032 wrote to memory of 3496	3032	olii.exe	olii.exe
PID 3032 wrote to memory of 3496	3032	olii.exe	olii.exe
PID 3032 wrote to memory of 3496	3032	olii.exe	olii.exe

outlook_office_path 1 IoCs

Processes:

olii.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	olii.exe

outlook_win_path 1 IoCs

Processes:

olii.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	olii.exe

C:\Users\Admin\AppData\Local\Temp\olii.exe
"C:\Users\Admin\AppData\Local\Temp\olii.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3032

C:\Users\Admin\AppData\Local\Temp\olii.exe
"C:\Users\Admin\AppData\Local\Temp\olii.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3496

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\nshE31E.tmp\aneyji.dll
MD5
f7a30cb571aa862021ff786169f72a80

SHA1
d002635afeacd67ad2e5764d4dd07e0ec5f49ae3

SHA256
3c3b81e2f3de386bb78562b8005fcc582aa83d1bd5ac99aca14bd235f401c018

SHA512
7fc63a94a72b93ff57645d3e8c92726b7f77976ed5801461bfdaf4638dd8376565dad5f6663d1e0bd064e7521230b2b9f7aae90a5733f387fa003b22b501c69e

Download Submit
memory/3496-116-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3496-117-0x000000000040188B-mapping.dmp

Download
memory/3496-118-0x00000000047D0000-0x0000000004806000-memory.dmp

Filesize
216KB

Download
memory/3496-120-0x00000000048A0000-0x00000000048A1000-memory.dmp

Filesize
4KB

Download
memory/3496-121-0x0000000004ED0000-0x0000000004ED1000-memory.dmp

Filesize
4KB

Download
memory/3496-123-0x0000000004890000-0x0000000004891000-memory.dmp

Filesize
4KB

Download
memory/3496-124-0x0000000004892000-0x0000000004893000-memory.dmp

Filesize
4KB

Download
memory/3496-125-0x0000000004893000-0x0000000004894000-memory.dmp

Filesize
4KB

Download
memory/3496-122-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3496-126-0x0000000004894000-0x0000000004895000-memory.dmp

Filesize
4KB

Download
memory/3496-127-0x00000000057B0000-0x00000000057B1000-memory.dmp

Filesize
4KB

Download
memory/3496-128-0x00000000057E0000-0x00000000057E1000-memory.dmp

Filesize
4KB

Download
memory/3496-129-0x0000000005BE0000-0x0000000005BE1000-memory.dmp

Filesize
4KB

Download
memory/3496-130-0x0000000005680000-0x0000000005681000-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