agenttesla | 66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7

Analysis

max time kernel
146s
max time network
165s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
16/04/2024, 01:13

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General

Target

66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe
Size

1007KB
MD5

3fdac5be870ce5d0c30c06854203624a
SHA1

616317b2de7a62935c0630439b4bd884e8c79f3e
SHA256

66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7
SHA512

686fb0dcd723a1fe005b8d4f0e1d014caf1a9b7eebceffd75b48949f7fce3a32457d215fbbe0d65ef69c98a52b0190cc8feaf90b363cae7ee311344aba7342a9
SSDEEP

12288:UJ4NBFTi6/LSqFb4R7u59FSIogAHpXBoftbQleal:a4NH/LScb4Vu5aIogIpXe6lea

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.almaks.rs
Port:
587
Username:
[email protected]
Password:
102Alma03-3

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.almaks.rs
Port:
587
Username:
[email protected]
Password:
102Alma03-3
Email To:
[email protected]

Signatures

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

Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs

resource	yara_rule
behavioral2/memory/2036-21-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs

resource	yara_rule
behavioral2/memory/2036-21-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 1 IoCs

resource	yara_rule
behavioral2/memory/2036-21-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL

Detects executables packed with SmartAssembly 1 IoCs

resource	yara_rule
behavioral2/memory/3328-9-0x00000000059B0000-0x00000000059BC000-memory.dmp	INDICATOR_EXE_Packed_SmartAssembly

Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs

resource	yara_rule
behavioral2/memory/2036-21-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral2/memory/2036-21-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral2/memory/2036-21-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral2/memory/2036-21-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\Control Panel\International\Geo\Nation	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1230272463-3683322193-511842230-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NcnBt = "C:\\Users\\Admin\\AppData\\Roaming\\NcnBt\\NcnBt.exe"	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
43	api.ipify.org
44	api.ipify.org
45	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3328 set thread context of 2036	3328	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	101

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

pid	Process
4972	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4444	powershell.exe
4444	powershell.exe
2036	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe
2036	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe
2036	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe
4444	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4444	powershell.exe
Token: SeDebugPrivilege	2036	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3328 wrote to memory of 4444	3328	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	97
PID 3328 wrote to memory of 4444	3328	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	97
PID 3328 wrote to memory of 4444	3328	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	97
PID 3328 wrote to memory of 4972	3328	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	99
PID 3328 wrote to memory of 4972	3328	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	99
PID 3328 wrote to memory of 4972	3328	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	99
PID 3328 wrote to memory of 2036	3328	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	101
PID 3328 wrote to memory of 2036	3328	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	101
PID 3328 wrote to memory of 2036	3328	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	101
PID 3328 wrote to memory of 2036	3328	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	101
PID 3328 wrote to memory of 2036	3328	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	101
PID 3328 wrote to memory of 2036	3328	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	101
PID 3328 wrote to memory of 2036	3328	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	101
PID 3328 wrote to memory of 2036	3328	66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe	101

C:\Users\Admin\AppData\Local\Temp\66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe
"C:\Users\Admin\AppData\Local\Temp\66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3328
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\XJRRUUSuj.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4444
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XJRRUUSuj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA3DC.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4972
- C:\Users\Admin\AppData\Local\Temp\66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe
  "C:\Users\Admin\AppData\Local\Temp\66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2036

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\66e4e0b05fbe673afbd9f23ada369eaab823c2ce0285b5004068d6b03e3449e7.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_v2cjidos.wcc.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA3DC.tmp

Filesize
1KB

MD5
d255e98ee5770c36b114b9073645c345

SHA1
86d2f827350babb5f8aaaa6559426b19bd00bfed

SHA256
ddbf27b79995d1052598baf11c5921b6ec1008c18e5d105d13e1f979df2bb002

SHA512
02e2e5762e098da444bc17ec2d5d4db93b02bef72505ce1390f7b55058ae18576902dd4c82909aed2b41f8292f2cf43c8b41e086c9b33af7a87c247550775f67

Download Submit
memory/2036-76-0x0000000004FD0000-0x0000000004FE0000-memory.dmp

Filesize
64KB

Download
memory/2036-75-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/2036-61-0x0000000006870000-0x00000000068C0000-memory.dmp

Filesize
320KB

Download
memory/2036-35-0x0000000005160000-0x00000000051C6000-memory.dmp

Filesize
408KB

Download
memory/2036-30-0x0000000004FD0000-0x0000000004FE0000-memory.dmp

Filesize
64KB

Download
memory/2036-26-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/2036-21-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3328-15-0x00000000057E0000-0x00000000057F0000-memory.dmp

Filesize
64KB

Download
memory/3328-5-0x0000000005670000-0x000000000567A000-memory.dmp

Filesize
40KB

Download
memory/3328-0-0x0000000000AE0000-0x0000000000BE2000-memory.dmp

Filesize
1.0MB

Download
memory/3328-1-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/3328-2-0x0000000005C50000-0x00000000061F4000-memory.dmp

Filesize
5.6MB

Download
memory/3328-10-0x0000000006980000-0x0000000006A04000-memory.dmp

Filesize
528KB

Download
memory/3328-3-0x00000000055C0000-0x0000000005652000-memory.dmp

Filesize
584KB

Download
memory/3328-9-0x00000000059B0000-0x00000000059BC000-memory.dmp

Filesize
48KB

Download
memory/3328-14-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/3328-8-0x00000000059A0000-0x00000000059A8000-memory.dmp

Filesize
32KB

Download
memory/3328-7-0x0000000005740000-0x0000000005752000-memory.dmp

Filesize
72KB

Download
memory/3328-25-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/3328-4-0x00000000057E0000-0x00000000057F0000-memory.dmp

Filesize
64KB

Download
memory/3328-6-0x00000000058E0000-0x000000000597C000-memory.dmp

Filesize
624KB

Download
memory/4444-45-0x00000000065D0000-0x0000000006602000-memory.dmp

Filesize
200KB

Download
memory/4444-60-0x00000000073A0000-0x00000000073AA000-memory.dmp

Filesize
40KB

Download
memory/4444-27-0x0000000005010000-0x0000000005032000-memory.dmp

Filesize
136KB

Download
memory/4444-40-0x0000000005B50000-0x0000000005EA4000-memory.dmp

Filesize
3.3MB

Download
memory/4444-41-0x0000000006010000-0x000000000602E000-memory.dmp

Filesize
120KB

Download
memory/4444-42-0x0000000006040000-0x000000000608C000-memory.dmp

Filesize
304KB

Download
memory/4444-43-0x0000000004DE0000-0x0000000004DF0000-memory.dmp

Filesize
64KB

Download
memory/4444-22-0x0000000005420000-0x0000000005A48000-memory.dmp

Filesize
6.2MB

Download
memory/4444-46-0x0000000070E00000-0x0000000070E4C000-memory.dmp

Filesize
304KB

Download
memory/4444-56-0x0000000006610000-0x000000000662E000-memory.dmp

Filesize
120KB

Download
memory/4444-57-0x00000000071F0000-0x0000000007293000-memory.dmp

Filesize
652KB

Download
memory/4444-58-0x0000000007950000-0x0000000007FCA000-memory.dmp

Filesize
6.5MB

Download
memory/4444-59-0x0000000007310000-0x000000000732A000-memory.dmp

Filesize
104KB

Download
memory/4444-34-0x00000000050D0000-0x0000000005136000-memory.dmp

Filesize
408KB

Download
memory/4444-20-0x0000000004DE0000-0x0000000004DF0000-memory.dmp

Filesize
64KB

Download
memory/4444-62-0x00000000075B0000-0x0000000007646000-memory.dmp

Filesize
600KB

Download
memory/4444-63-0x0000000007530000-0x0000000007541000-memory.dmp

Filesize
68KB

Download
memory/4444-64-0x0000000007560000-0x000000000756E000-memory.dmp

Filesize
56KB

Download
memory/4444-65-0x0000000007570000-0x0000000007584000-memory.dmp

Filesize
80KB

Download
memory/4444-66-0x0000000007670000-0x000000000768A000-memory.dmp

Filesize
104KB

Download
memory/4444-67-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/4444-68-0x0000000007650000-0x0000000007658000-memory.dmp

Filesize
32KB

Download
memory/4444-69-0x0000000004DE0000-0x0000000004DF0000-memory.dmp

Filesize
64KB

Download
memory/4444-71-0x0000000004DE0000-0x0000000004DF0000-memory.dmp

Filesize
64KB

Download
memory/4444-74-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/4444-18-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/4444-17-0x00000000026F0000-0x0000000002726000-memory.dmp

Filesize
216KB

Download