agenttesla | 0a587dc9572e769d5263668453663402c91692a07caaa0ef52032b72c4b76470

Analysis

max time kernel
140s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 01:48

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General

Target

ESY61093I5N01.exe
Size

836KB
MD5

9b2e2e8f8744108fda24cfeb7c90fbf1
SHA1

e8361e5daf928bdf883fd61314d26c6c05dcee48
SHA256

1298254d450918ec0d6a4b5d5c433379ab4dd2400f05faaac525a5b30212659e
SHA512

a2ef8801e9c28929f5a5ed03d25bec151c225b79cdeb1f71e4e56e282778a1c4d8450d7d15001cd44b9abdd039e0ac5cf6232095dafa8eb04f5ffbb90660d913
SSDEEP

24576:Cw4bjw4bp/LxjHlOZBO+Mo49/0a/F8xsKNMD7:Cw4bjw4bbkBO+OMX3a

Score

10^/10

agenttesla execution keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
cozuns.com
Port:
587
Username:
[email protected]
Password:
Ku;_MUOVC3;E

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
cozuns.com
Port:
587
Username:
[email protected]
Password:
Ku;_MUOVC3;E
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

1712 powershell.exe

pid	process
1712	powershell.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:

ESY61093I5N01.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	ESY61093I5N01.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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
Suspicious use of SetThreadContext 1 IoCs

Processes:

ESY61093I5N01.exe

description pid process target process

PID 3068 set thread context of 3636 3068 ESY61093I5N01.exe ESY61093I5N01.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

ESY61093I5N01.exepowershell.exe

pid process

3636 ESY61093I5N01.exe
3636 ESY61093I5N01.exe
3636 ESY61093I5N01.exe
1712 powershell.exe
1712 powershell.exe
1712 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ESY61093I5N01.exepowershell.exe

description pid process

Token: SeDebugPrivilege 3636 ESY61093I5N01.exe
Token: SeDebugPrivilege 1712 powershell.exe

description	pid	process	target process
PID 3068 set thread context of 3636	3068	ESY61093I5N01.exe	ESY61093I5N01.exe

pid	process
3636	ESY61093I5N01.exe
3636	ESY61093I5N01.exe
3636	ESY61093I5N01.exe
1712	powershell.exe
1712	powershell.exe
1712	powershell.exe

description	pid	process
Token: SeDebugPrivilege	3636	ESY61093I5N01.exe
Token: SeDebugPrivilege	1712	powershell.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

ESY61093I5N01.exe

description	pid	process	target process
PID 3068 wrote to memory of 1712	3068	ESY61093I5N01.exe	powershell.exe
PID 3068 wrote to memory of 1712	3068	ESY61093I5N01.exe	powershell.exe
PID 3068 wrote to memory of 1712	3068	ESY61093I5N01.exe	powershell.exe
PID 3068 wrote to memory of 3636	3068	ESY61093I5N01.exe	ESY61093I5N01.exe
PID 3068 wrote to memory of 3636	3068	ESY61093I5N01.exe	ESY61093I5N01.exe
PID 3068 wrote to memory of 3636	3068	ESY61093I5N01.exe	ESY61093I5N01.exe
PID 3068 wrote to memory of 3636	3068	ESY61093I5N01.exe	ESY61093I5N01.exe
PID 3068 wrote to memory of 3636	3068	ESY61093I5N01.exe	ESY61093I5N01.exe
PID 3068 wrote to memory of 3636	3068	ESY61093I5N01.exe	ESY61093I5N01.exe
PID 3068 wrote to memory of 3636	3068	ESY61093I5N01.exe	ESY61093I5N01.exe
PID 3068 wrote to memory of 3636	3068	ESY61093I5N01.exe	ESY61093I5N01.exe

C:\Users\Admin\AppData\Local\Temp\ESY61093I5N01.exe
"C:\Users\Admin\AppData\Local\Temp\ESY61093I5N01.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3068

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\ESY61093I5N01.exe"
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1712

C:\Users\Admin\AppData\Local\Temp\ESY61093I5N01.exe
"C:\Users\Admin\AppData\Local\Temp\ESY61093I5N01.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3636

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=1748,i,4686244434963378549,11462511444150484980,262144 --variations-seed-version --mojo-platform-channel-handle=4148 /prefetch:8
1⤵
PID:1544

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\ESY61093I5N01.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nthp0ply.ckd.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1712-22-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/1712-52-0x0000000007250000-0x000000000725A000-memory.dmp

Filesize
40KB

Download
memory/1712-61-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/1712-58-0x0000000007500000-0x0000000007508000-memory.dmp

Filesize
32KB

Download
memory/1712-57-0x0000000007520000-0x000000000753A000-memory.dmp

Filesize
104KB

Download
memory/1712-32-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/1712-56-0x0000000007420000-0x0000000007434000-memory.dmp

Filesize
80KB

Download
memory/1712-33-0x00000000058E0000-0x0000000005C34000-memory.dmp

Filesize
3.3MB

Download
memory/1712-55-0x0000000007410000-0x000000000741E000-memory.dmp

Filesize
56KB

Download
memory/1712-54-0x00000000073E0000-0x00000000073F1000-memory.dmp

Filesize
68KB

Download
memory/1712-53-0x0000000007460000-0x00000000074F6000-memory.dmp

Filesize
600KB

Download
memory/1712-35-0x0000000005FE0000-0x000000000602C000-memory.dmp

Filesize
304KB

Download
memory/1712-15-0x00000000025C0000-0x00000000025F6000-memory.dmp

Filesize
216KB

Download
memory/1712-16-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/1712-51-0x00000000071E0000-0x00000000071FA000-memory.dmp

Filesize
104KB

Download
memory/1712-18-0x0000000005240000-0x0000000005868000-memory.dmp

Filesize
6.2MB

Download
memory/1712-50-0x0000000007820000-0x0000000007E9A000-memory.dmp

Filesize
6.5MB

Download
memory/1712-21-0x0000000005190000-0x00000000051F6000-memory.dmp

Filesize
408KB

Download
memory/1712-49-0x00000000070C0000-0x0000000007163000-memory.dmp

Filesize
652KB

Download
memory/1712-20-0x0000000004EF0000-0x0000000004F12000-memory.dmp

Filesize
136KB

Download
memory/1712-37-0x0000000006480000-0x00000000064B2000-memory.dmp

Filesize
200KB

Download
memory/1712-48-0x00000000064E0000-0x00000000064FE000-memory.dmp

Filesize
120KB

Download
memory/1712-38-0x0000000070BF0000-0x0000000070C3C000-memory.dmp

Filesize
304KB

Download
memory/1712-34-0x0000000005EC0000-0x0000000005EDE000-memory.dmp

Filesize
120KB

Download
memory/3068-13-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/3068-6-0x0000000005330000-0x00000000053CC000-memory.dmp

Filesize
624KB

Download
memory/3068-7-0x00000000052F0000-0x000000000530A000-memory.dmp

Filesize
104KB

Download
memory/3068-9-0x00000000061D0000-0x0000000006252000-memory.dmp

Filesize
520KB

Download
memory/3068-4-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/3068-0-0x0000000074F9E000-0x0000000074F9F000-memory.dmp

Filesize
4KB

Download
memory/3068-5-0x0000000005010000-0x000000000501A000-memory.dmp

Filesize
40KB

Download
memory/3068-1-0x0000000000670000-0x0000000000744000-memory.dmp

Filesize
848KB

Download
memory/3068-3-0x0000000005060000-0x00000000050F2000-memory.dmp

Filesize
584KB

Download
memory/3068-8-0x0000000005050000-0x0000000005060000-memory.dmp

Filesize
64KB

Download
memory/3068-2-0x0000000005570000-0x0000000005B14000-memory.dmp

Filesize
5.6MB

Download
memory/3636-10-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3636-14-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/3636-36-0x0000000006090000-0x00000000060E0000-memory.dmp

Filesize
320KB

Download
memory/3636-17-0x0000000005250000-0x00000000052B6000-memory.dmp

Filesize
408KB

Download
memory/3636-19-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/3636-62-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download