agenttesla | d9136458c333f03b11beaaec3388aa1bd3afad5b5f6920fa992b8e5c05b8c62b

General

Target

tmp.exe
Size

851KB
MD5

7ff571e8d43bdefd4fb9ca3177dfbc7e
SHA1

1cee0c951d9b2841bf6ab2b86abd3cd6d1a4210f
SHA256

d9136458c333f03b11beaaec3388aa1bd3afad5b5f6920fa992b8e5c05b8c62b
SHA512

6a1295835c574970eb5c7ef23f1b179216436c03dd5482ec84e9d58674dfe22c2f558514b5ad3e08cf7cb737b730a8d8ad1f125cf73b316a5049ebcae28b4157
SSDEEP

12288:CZUpZwdqiKnLWeFXwg71cAwV6rmo6f4oKcBsInfwDUXgZtEjHD/d92JTDAd:hpZG4XX33mo6fZKcBdNimnd92JTE

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1611551445:AAFDJ3yQMlB3zXJGib2_TFkq1jedBMj3GTw/sendDocument

Signatures

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

AgentTesla payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4892-147-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

tmp.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts tmp.exe
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

tmp.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation tmp.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

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	tmp.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation	tmp.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

tmp.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

tmp.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe"	tmp.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

tmp.exe

description pid process target process

PID 4604 set thread context of 4892 4604 tmp.exe tmp.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

2196 schtasks.exe

description	pid	process	target process
PID 4604 set thread context of 4892	4604	tmp.exe	tmp.exe

pid	process
2196	schtasks.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

tmp.exepowershell.exetmp.exe

pid	process
4604	tmp.exe
4604	tmp.exe
4604	tmp.exe
4604	tmp.exe
4604	tmp.exe
4604	tmp.exe
4604	tmp.exe
4604	tmp.exe
5100	powershell.exe
4892	tmp.exe
4892	tmp.exe
5100	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

tmp.exepowershell.exetmp.exe

description pid process

Token: SeDebugPrivilege 4604 tmp.exe
Token: SeDebugPrivilege 5100 powershell.exe
Token: SeDebugPrivilege 4892 tmp.exe

description	pid	process
Token: SeDebugPrivilege	4604	tmp.exe
Token: SeDebugPrivilege	5100	powershell.exe
Token: SeDebugPrivilege	4892	tmp.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

tmp.exe

description	pid	process	target process
PID 4604 wrote to memory of 5100	4604	tmp.exe	powershell.exe
PID 4604 wrote to memory of 5100	4604	tmp.exe	powershell.exe
PID 4604 wrote to memory of 5100	4604	tmp.exe	powershell.exe
PID 4604 wrote to memory of 2196	4604	tmp.exe	schtasks.exe
PID 4604 wrote to memory of 2196	4604	tmp.exe	schtasks.exe
PID 4604 wrote to memory of 2196	4604	tmp.exe	schtasks.exe
PID 4604 wrote to memory of 1232	4604	tmp.exe	tmp.exe
PID 4604 wrote to memory of 1232	4604	tmp.exe	tmp.exe
PID 4604 wrote to memory of 1232	4604	tmp.exe	tmp.exe
PID 4604 wrote to memory of 4548	4604	tmp.exe	tmp.exe
PID 4604 wrote to memory of 4548	4604	tmp.exe	tmp.exe
PID 4604 wrote to memory of 4548	4604	tmp.exe	tmp.exe
PID 4604 wrote to memory of 1436	4604	tmp.exe	tmp.exe
PID 4604 wrote to memory of 1436	4604	tmp.exe	tmp.exe
PID 4604 wrote to memory of 1436	4604	tmp.exe	tmp.exe
PID 4604 wrote to memory of 4892	4604	tmp.exe	tmp.exe
PID 4604 wrote to memory of 4892	4604	tmp.exe	tmp.exe
PID 4604 wrote to memory of 4892	4604	tmp.exe	tmp.exe
PID 4604 wrote to memory of 4892	4604	tmp.exe	tmp.exe
PID 4604 wrote to memory of 4892	4604	tmp.exe	tmp.exe
PID 4604 wrote to memory of 4892	4604	tmp.exe	tmp.exe
PID 4604 wrote to memory of 4892	4604	tmp.exe	tmp.exe
PID 4604 wrote to memory of 4892	4604	tmp.exe	tmp.exe

outlook_office_path 1 IoCs

Processes:

tmp.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe

outlook_win_path 1 IoCs

Processes:

tmp.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	tmp.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4604

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\dyfYBBF.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5100

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dyfYBBF" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE96.tmp"
2⤵
- Creates scheduled task(s)
PID:2196

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
2⤵
PID:1232

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
2⤵
PID:4548

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4892

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
2⤵
PID:1436

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

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\tmp.exe.log
Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hsvepdnk.ubg.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE96.tmp
Filesize
1KB

MD5
f3d1863f70fc2ec2701587b607dc131e

SHA1
4aea998fc51e9e9ace948032a45957f8f6a1f78a

SHA256
84da7171a9a3490589ddd942f1e06889d2171761e9dd12ddbc2181cfc29e9b5f

SHA512
8df99850d3102618fc28e9b3a8dc71c90e40e1a3070f58ec191889bbe2a732612f4b67f51cacb28eb946cd4c23c99d34514fbe685b6495b357273fc5f822a9d9

Download Submit
memory/4604-134-0x0000000005C00000-0x00000000061A4000-memory.dmp

Filesize
5.6MB

Download
memory/4604-135-0x0000000005650000-0x00000000056E2000-memory.dmp

Filesize
584KB

Download
memory/4604-136-0x00000000058B0000-0x00000000058C0000-memory.dmp

Filesize
64KB

Download
memory/4604-137-0x00000000058A0000-0x00000000058AA000-memory.dmp

Filesize
40KB

Download
memory/4604-138-0x00000000058B0000-0x00000000058C0000-memory.dmp

Filesize
64KB

Download
memory/4604-139-0x00000000077E0000-0x000000000787C000-memory.dmp

Filesize
624KB

Download
memory/4604-133-0x0000000000BC0000-0x0000000000C9C000-memory.dmp

Filesize
880KB

Download
memory/4892-162-0x0000000005120000-0x0000000005130000-memory.dmp

Filesize
64KB

Download
memory/4892-147-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4892-191-0x0000000006670000-0x00000000066C0000-memory.dmp

Filesize
320KB

Download
memory/4892-188-0x0000000005120000-0x0000000005130000-memory.dmp

Filesize
64KB

Download
memory/5100-176-0x0000000006E00000-0x0000000006E1E000-memory.dmp

Filesize
120KB

Download
memory/5100-178-0x000000007F5F0000-0x000000007F600000-memory.dmp

Filesize
64KB

Download
memory/5100-144-0x0000000002F50000-0x0000000002F86000-memory.dmp

Filesize
216KB

Download
memory/5100-163-0x0000000005570000-0x0000000005580000-memory.dmp

Filesize
64KB

Download
memory/5100-164-0x0000000006840000-0x000000000685E000-memory.dmp

Filesize
120KB

Download
memory/5100-165-0x0000000006E20000-0x0000000006E52000-memory.dmp

Filesize
200KB

Download
memory/5100-166-0x0000000071750000-0x000000007179C000-memory.dmp

Filesize
304KB

Download
memory/5100-146-0x0000000005BB0000-0x00000000061D8000-memory.dmp

Filesize
6.2MB

Download
memory/5100-177-0x0000000005570000-0x0000000005580000-memory.dmp

Filesize
64KB

Download
memory/5100-157-0x00000000061E0000-0x0000000006246000-memory.dmp

Filesize
408KB

Download
memory/5100-179-0x00000000081A0000-0x000000000881A000-memory.dmp

Filesize
6.5MB

Download
memory/5100-180-0x0000000007B60000-0x0000000007B7A000-memory.dmp

Filesize
104KB

Download
memory/5100-181-0x0000000007BD0000-0x0000000007BDA000-memory.dmp

Filesize
40KB

Download
memory/5100-182-0x0000000007DE0000-0x0000000007E76000-memory.dmp

Filesize
600KB

Download
memory/5100-183-0x0000000007D90000-0x0000000007D9E000-memory.dmp

Filesize
56KB

Download
memory/5100-184-0x0000000007EA0000-0x0000000007EBA000-memory.dmp

Filesize
104KB

Download
memory/5100-185-0x0000000007E80000-0x0000000007E88000-memory.dmp

Filesize
32KB

Download
memory/5100-151-0x0000000005B40000-0x0000000005BA6000-memory.dmp

Filesize
408KB

Download
memory/5100-150-0x00000000058A0000-0x00000000058C2000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads