agenttesla | 26e4c2040af6ee16a1794c86220f5249743ec9c9ceee933645331c1e54ebcca6

Analysis

max time kernel
41s
max time network
88s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
26-09-2023 13:52

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General

Target

docutc20230925.exe
Size

1.3MB
MD5

aa9dd2c152d86d81236ad564d3c2a078
SHA1

c03deff1a4d16f3d8ababdbc46ee84434edf45da
SHA256

26e4c2040af6ee16a1794c86220f5249743ec9c9ceee933645331c1e54ebcca6
SHA512

9175e0bbedb2ec048225b90312342663079282c3d63bb9eaea91b39395c0c4ff726c8dfd6d9283b5eb291b63451cc9108228c83773cfaa2be7a7b02eea0c3a82
SSDEEP

24576:oIluyj5gi9DaTSV//eSGUZgCRZ4cuApE9eOKUvau9Z5JiN:oIluyjui9Dmk/BGcDR0ApceOSuv

Score

10^/10

agenttesla snakekeylogger collection keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.royalcheckout.store
Port:
587
Username:
[email protected]
Password:
esubwDViXlQ2@@##

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
stealer keylogger snakekeylogger

Snake Keylogger payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4496-7-0x0000000000400000-0x0000000000466000-memory.dmp	family_snakekeylogger

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

docutc20230925.exedocutc20230925.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Control Panel\International\Geo\Nation	docutc20230925.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Control Panel\International\Geo\Nation	docutc20230925.exe

Executes dropped EXE 3 IoCs

Processes:

utchmann.exesvchost.exesvchost.exe

pid process

4724 utchmann.exe
2828 svchost.exe
4692 svchost.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
T1552.001
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
T1552.001
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
T1552.001

pid	process
4724	utchmann.exe
2828	svchost.exe
4692	svchost.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

utchmann.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	utchmann.exe
Key opened	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	utchmann.exe
Key opened	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	utchmann.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

44 api.ipify.org
45 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

docutc20230925.exe

description pid process target process

PID 4572 set thread context of 4496 4572 docutc20230925.exe docutc20230925.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

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/Job
T1053

Processes:

schtasks.exe

pid process

1012 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

utchmann.exe

pid process

4724 utchmann.exe
4724 utchmann.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

utchmann.exe

description pid process

Token: SeDebugPrivilege 4724 utchmann.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

utchmann.exe

pid process

4724 utchmann.exe

flow	ioc
44	api.ipify.org
45	api.ipify.org

description	pid	process	target process
PID 4572 set thread context of 4496	4572	docutc20230925.exe	docutc20230925.exe

pid	process
1012	schtasks.exe

pid	process
4724	utchmann.exe
4724	utchmann.exe

description	pid	process
Token: SeDebugPrivilege	4724	utchmann.exe

pid	process
4724	utchmann.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

docutc20230925.exedocutc20230925.execmd.exe

description	pid	process	target process
PID 4572 wrote to memory of 4496	4572	docutc20230925.exe	docutc20230925.exe
PID 4572 wrote to memory of 4496	4572	docutc20230925.exe	docutc20230925.exe
PID 4572 wrote to memory of 4496	4572	docutc20230925.exe	docutc20230925.exe
PID 4572 wrote to memory of 4496	4572	docutc20230925.exe	docutc20230925.exe
PID 4572 wrote to memory of 4496	4572	docutc20230925.exe	docutc20230925.exe
PID 4572 wrote to memory of 4496	4572	docutc20230925.exe	docutc20230925.exe
PID 4572 wrote to memory of 4496	4572	docutc20230925.exe	docutc20230925.exe
PID 4572 wrote to memory of 4496	4572	docutc20230925.exe	docutc20230925.exe
PID 4496 wrote to memory of 4724	4496	docutc20230925.exe	utchmann.exe
PID 4496 wrote to memory of 4724	4496	docutc20230925.exe	utchmann.exe
PID 4496 wrote to memory of 4724	4496	docutc20230925.exe	utchmann.exe
PID 4572 wrote to memory of 2828	4572	docutc20230925.exe	svchost.exe
PID 4572 wrote to memory of 2828	4572	docutc20230925.exe	svchost.exe
PID 4572 wrote to memory of 2828	4572	docutc20230925.exe	svchost.exe
PID 4572 wrote to memory of 1132	4572	docutc20230925.exe	cmd.exe
PID 4572 wrote to memory of 1132	4572	docutc20230925.exe	cmd.exe
PID 4572 wrote to memory of 1132	4572	docutc20230925.exe	cmd.exe
PID 4572 wrote to memory of 4828	4572	docutc20230925.exe	cmd.exe
PID 4572 wrote to memory of 4828	4572	docutc20230925.exe	cmd.exe
PID 4572 wrote to memory of 4828	4572	docutc20230925.exe	cmd.exe
PID 4572 wrote to memory of 1360	4572	docutc20230925.exe	cmd.exe
PID 4572 wrote to memory of 1360	4572	docutc20230925.exe	cmd.exe
PID 4572 wrote to memory of 1360	4572	docutc20230925.exe	cmd.exe
PID 4828 wrote to memory of 1012	4828	cmd.exe	schtasks.exe
PID 4828 wrote to memory of 1012	4828	cmd.exe	schtasks.exe
PID 4828 wrote to memory of 1012	4828	cmd.exe	schtasks.exe

outlook_office_path 1 IoCs

Processes:

utchmann.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	utchmann.exe

outlook_win_path 1 IoCs

Processes:

utchmann.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	utchmann.exe

C:\Users\Admin\AppData\Local\Temp\docutc20230925.exe
"C:\Users\Admin\AppData\Local\Temp\docutc20230925.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4572

C:\Users\Admin\AppData\Local\Temp\docutc20230925.exe
"C:\Users\Admin\AppData\Local\Temp\docutc20230925.exe"
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4496

C:\Users\Admin\AppData\Roaming\utchmann.exe
"C:\Users\Admin\AppData\Roaming\utchmann.exe"
3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:4724

C:\Users\Admin\AppData\Local\Temp\svchost.exe
"C:\Users\Admin\AppData\Local\Temp\svchost.exe"
2⤵
- Executes dropped EXE
PID:2828

C:\Windows\SysWOW64\cmd.exe
"cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\docutc20230925.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
2⤵
PID:1360

C:\Windows\SysWOW64\cmd.exe
"cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
2⤵
- Suspicious use of WriteProcessMemory
PID:4828

C:\Windows\SysWOW64\cmd.exe
"cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
2⤵
PID:1132

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
1⤵
- Creates scheduled task(s)
PID:1012

C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
1⤵
- Executes dropped EXE
PID:4692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\docutc20230925.exe.log

Filesize
226B

MD5
916851e072fbabc4796d8916c5131092

SHA1
d48a602229a690c512d5fdaf4c8d77547a88e7a2

SHA256
7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

SHA512
07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

Download Submit
C:\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
621KB

MD5
ed9d91fe584d5109d4067734ac452753

SHA1
c277e57866833509d94787fc6f4d634a2714825d

SHA256
3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

SHA512
a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

Download Submit
C:\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
621KB

MD5
ed9d91fe584d5109d4067734ac452753

SHA1
c277e57866833509d94787fc6f4d634a2714825d

SHA256
3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

SHA512
a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

Download Submit
C:\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
621KB

MD5
ed9d91fe584d5109d4067734ac452753

SHA1
c277e57866833509d94787fc6f4d634a2714825d

SHA256
3629ed9b94ae5d0f2659d02dcb7ce258cb5c2497d5bf18f3c4fed78878fba030

SHA512
a6603acb550b897ec91b5c57b3034b8fd44ad9d675662aade0a078771b533b28e320c12c063c4ae48bfb23e8dfc85f304679458ea111db2e737043af0261bb1a

Download Submit
C:\Users\Admin\AppData\Roaming\svchost\svchost.exe

Filesize
960KB

MD5
8b71287707f5f1e6ce927493d1658c25

SHA1
a9a7cb1b8cff302b9af3c23750edfd7c40ecd218

SHA256
274f4712b55be5da613ceb63594ee9ffe1f7fff98380c6df955bab4dd22cc565

SHA512
41acc7dee860b56ebae322075f7e115d1b52d71611257d485b75d9522dc9871431279123e9ec434a475f970346c2ec41f9f68576ed2385d16c3cbc3349982bc3

Download Submit
C:\Users\Admin\AppData\Roaming\svchost\svchost.exe

Filesize
128KB

MD5
d1d55c6ea6d2184764a4e81e13057af9

SHA1
7bc82737e0c024d6905bb5badc2ed8fa1d799704

SHA256
0a7c4673ff50825250c47b55db0c7fe07bb3a9b6fc983db39c57510f54b124bc

SHA512
5a52edc1f5ef227bf4a85cc50662e2324b5a6af5acfdb266ebb758fcff033d076b085e613f86f63822c1628205a60f6dca76674f6564964b9e8b1f80a36d3759

Download Submit
C:\Users\Admin\AppData\Roaming\utchmann.exe

Filesize
247KB

MD5
9b6f64d454ad8d3e91d6827a0262ca58

SHA1
95ad850c587f28410d390e5076ed7cbd89e19cc1

SHA256
3f645d2746e16d3444423afc3a11a5ef43c095164ffd117d59e820e0123cccdc

SHA512
5e2415bd0ee435056ca98ae62de2b3c8061abf403530d50dd46bc516d1dd120ca69e32cdc90a83e67fc4b0c55c8e6e98694d07dfe2620fa2e728e4c95e731be0

Download Submit
C:\Users\Admin\AppData\Roaming\utchmann.exe

Filesize
247KB

MD5
9b6f64d454ad8d3e91d6827a0262ca58

SHA1
95ad850c587f28410d390e5076ed7cbd89e19cc1

SHA256
3f645d2746e16d3444423afc3a11a5ef43c095164ffd117d59e820e0123cccdc

SHA512
5e2415bd0ee435056ca98ae62de2b3c8061abf403530d50dd46bc516d1dd120ca69e32cdc90a83e67fc4b0c55c8e6e98694d07dfe2620fa2e728e4c95e731be0

Download Submit
C:\Users\Admin\AppData\Roaming\utchmann.exe

Filesize
247KB

MD5
9b6f64d454ad8d3e91d6827a0262ca58

SHA1
95ad850c587f28410d390e5076ed7cbd89e19cc1

SHA256
3f645d2746e16d3444423afc3a11a5ef43c095164ffd117d59e820e0123cccdc

SHA512
5e2415bd0ee435056ca98ae62de2b3c8061abf403530d50dd46bc516d1dd120ca69e32cdc90a83e67fc4b0c55c8e6e98694d07dfe2620fa2e728e4c95e731be0

Download Submit
memory/2828-40-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

Download
memory/2828-36-0x0000000000F50000-0x0000000000FF2000-memory.dmp

Filesize
648KB

Download
memory/4496-9-0x0000000002D10000-0x0000000002D18000-memory.dmp

Filesize
32KB

Download
memory/4496-7-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4496-37-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

Download
memory/4496-11-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

Download
memory/4572-3-0x0000000004CA0000-0x0000000004CB0000-memory.dmp

Filesize
64KB

Download
memory/4572-0-0x00000000000D0000-0x0000000000220000-memory.dmp

Filesize
1.3MB

Download
memory/4572-6-0x0000000004EB0000-0x0000000005010000-memory.dmp

Filesize
1.4MB

Download
memory/4572-1-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

Download
memory/4572-39-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

Download
memory/4572-5-0x0000000004CA0000-0x0000000004CB0000-memory.dmp

Filesize
64KB

Download
memory/4572-2-0x0000000005260000-0x0000000005804000-memory.dmp

Filesize
5.6MB

Download
memory/4572-4-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

Download
memory/4724-41-0x00000000052A0000-0x00000000052B0000-memory.dmp

Filesize
64KB

Download
memory/4724-44-0x00000000051C0000-0x0000000005226000-memory.dmp

Filesize
408KB

Download
memory/4724-45-0x0000000006830000-0x0000000006880000-memory.dmp

Filesize
320KB

Download
memory/4724-46-0x0000000006920000-0x00000000069BC000-memory.dmp

Filesize
624KB

Download
memory/4724-47-0x0000000006B60000-0x0000000006BF2000-memory.dmp

Filesize
584KB

Download
memory/4724-48-0x0000000006AD0000-0x0000000006ADA000-memory.dmp

Filesize
40KB

Download
memory/4724-49-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

Download
memory/4724-35-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

Download
memory/4724-38-0x00000000007E0000-0x0000000000824000-memory.dmp

Filesize
272KB

Download