agenttesla | cc92146cb6e5e514c4bae54ced9f4bf6724b6b8b370f2f6d219aa5b0f95390ba

Analysis

max time kernel
140s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
15-09-2024 17:54

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General

Target

Stellar.exe
Size

2.4MB
MD5

d68dba883125d1a3408e13b84a3524e1
SHA1

b613717517240829d8c28242a3b2ec7c6576b3f3
SHA256

cc92146cb6e5e514c4bae54ced9f4bf6724b6b8b370f2f6d219aa5b0f95390ba
SHA512

bad82130be599397e7a58a80d8301618fd35787c8d7bf5c1ae0d2cd00f92613265cabd9678c7dcd3e4fe8251a2636b14bdc7d0c0f29e383ae54b5dcf08b30de3
SSDEEP

49152:vMkygnW2WnCzXzf7UPrn2Xb0ThRyUB1CP/yOuUaL4EgfGs3:t7nW2eCzjf7EnNvyCCZeLOG4

Score

10^/10

agenttesla xworm discovery execution keylogger persistence rat spyware stealer trojan

Malware Config

Extracted

Family

xworm

Attributes

Install_directory
%ProgramData%
install_file
USB.exe
pastebin_url
https://pastebin.com/raw/LsuynkUz

Signatures

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

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x00070000000235f0-19.dat	family_xworm
behavioral2/memory/4388-28-0x0000000000550000-0x0000000000566000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

AgentTesla payload 2 IoCs

resource	yara_rule
behavioral2/files/0x00070000000235ee-35.dat	family_agenttesla
behavioral2/memory/3488-39-0x0000000006210000-0x0000000006422000-memory.dmp	family_agenttesla

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2156	powershell.exe
2376	powershell.exe
2180	powershell.exe
3216	powershell.exe

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	Stellar.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	AdobeIPC.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\AdobeIPC.lnk	AdobeIPC.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\AdobeIPC.lnk	AdobeIPC.exe

Executes dropped EXE 4 IoCs

pid	Process
3488	Stellar Generator.exe
4388	AdobeIPC.exe
2148	AdobeIPC
3824	AdobeIPC

Loads dropped DLL 2 IoCs

pid	Process
3488	Stellar Generator.exe
3488	Stellar Generator.exe

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-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AdobeIPC = "C:\\ProgramData\\AdobeIPC"	AdobeIPC.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
18	pastebin.com
19	pastebin.com
27	pastebin.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Stellar Generator.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	Stellar Generator.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	Stellar Generator.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemVersion	Stellar Generator.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4284	schtasks.exe

Suspicious behavior: EnumeratesProcesses 53 IoCs

pid	Process
2376	powershell.exe
2376	powershell.exe
2180	powershell.exe
2180	powershell.exe
3216	powershell.exe
3216	powershell.exe
2156	powershell.exe
2156	powershell.exe
2156	powershell.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe
4388	AdobeIPC.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	4388	AdobeIPC.exe
Token: SeDebugPrivilege	2376	powershell.exe
Token: SeDebugPrivilege	2180	powershell.exe
Token: SeDebugPrivilege	3216	powershell.exe
Token: SeDebugPrivilege	2156	powershell.exe
Token: SeDebugPrivilege	4388	AdobeIPC.exe
Token: SeDebugPrivilege	3488	Stellar Generator.exe
Token: SeDebugPrivilege	2148	AdobeIPC
Token: SeDebugPrivilege	3824	AdobeIPC

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4388	AdobeIPC.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 3488	1728	Stellar.exe	89
PID 1728 wrote to memory of 3488	1728	Stellar.exe	89
PID 1728 wrote to memory of 3488	1728	Stellar.exe	89
PID 1728 wrote to memory of 4388	1728	Stellar.exe	90
PID 1728 wrote to memory of 4388	1728	Stellar.exe	90
PID 4388 wrote to memory of 2376	4388	AdobeIPC.exe	92
PID 4388 wrote to memory of 2376	4388	AdobeIPC.exe	92
PID 4388 wrote to memory of 2180	4388	AdobeIPC.exe	96
PID 4388 wrote to memory of 2180	4388	AdobeIPC.exe	96
PID 4388 wrote to memory of 3216	4388	AdobeIPC.exe	98
PID 4388 wrote to memory of 3216	4388	AdobeIPC.exe	98
PID 4388 wrote to memory of 2156	4388	AdobeIPC.exe	102
PID 4388 wrote to memory of 2156	4388	AdobeIPC.exe	102
PID 4388 wrote to memory of 4284	4388	AdobeIPC.exe	105
PID 4388 wrote to memory of 4284	4388	AdobeIPC.exe	105

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\Stellar.exe
"C:\Users\Admin\AppData\Local\Temp\Stellar.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1728
- C:\ProgramData\Stellar Generator.exe
  "C:\ProgramData\Stellar Generator.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:3488
- C:\ProgramData\AdobeIPC.exe
  "C:\ProgramData\AdobeIPC.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4388
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\AdobeIPC.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2376
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'AdobeIPC.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2180
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\AdobeIPC'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3216
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'AdobeIPC'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2156
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "AdobeIPC" /tr "C:\ProgramData\AdobeIPC"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4284

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 --field-trial-handle=4112,i,9445584274764997943,12714240264001792460,262144 --variations-seed-version --mojo-platform-channel-handle=4124 /prefetch:8
1⤵
PID:4544

C:\ProgramData\AdobeIPC
C:\ProgramData\AdobeIPC
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2148

C:\ProgramData\AdobeIPC
C:\ProgramData\AdobeIPC
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3824

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\ProgramData\AdobeIPC.exe

Filesize
65KB

MD5
1f1441f1cc6080cf821cfda93bd05e97

SHA1
8949a0762d9b68247d52209653b95f649470deee

SHA256
c2b08bb76ce8bbb8d85504b6725bd33e473a591af9bd358286c407b280d07440

SHA512
84eeda4e49ceacb5ecc8017e95893d70d52176f973a0e0b1ea1e18098d65164f4a40aeceb17b17a091b288aee0284b60b4cca934cc513039e8736573210133d9

Download Submit
C:\ProgramData\Guna.UI2.dll

Filesize
2.1MB

MD5
c97f23b52087cfa97985f784ea83498f

SHA1
d364618bec9cd6f8f5d4c24d3cc0f4c1a8e06b89

SHA256
e658e8a5616245dbe655e194b59f1bb704aaeafbd0925d6eebbe70555a638cdd

SHA512
ecfa83596f99afde9758d1142ff8b510a090cba6f42ba6fda8ca5e0520b658943ad85829a07bf17411e26e58432b74f05356f7eaeb3949a8834faa5de1a4f512

Download Submit
C:\ProgramData\Stellar Generator.exe

Filesize
247KB

MD5
6b7fce17300b729ca1c919ae47db6c7d

SHA1
2e49381b6a922bfaafd040883b04e6a8ab6148b6

SHA256
132ee3a204736259c89a6ae74d5c43e832409fa331e39686c6910936a9c7989f

SHA512
e9ee8a63e72d6d11d6396a790c61b803df3f20d326cf5279afb4cf88e0838d393f8e0e9d06f27627ad8bdaeddbdb41f996eab6f1a2e2b91c26405e4c1c242f27

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\AdobeIPC.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
10890cda4b6eab618e926c4118ab0647

SHA1
1e1d63b73a0e6c7575f458b3c7917a9ce5ba776d

SHA256
00f8a035324d39bd62e6dee5e1b480069015471c487ebee4479e6990ea9ddb14

SHA512
a2ee84006c24a36f25e0bca0772430d64e3791f233da916aecdeae6712763e77d55bbbd00dc8f6b2b3887f3c26ab3980b96c5f46cc823e81e28abbbc5fc78221

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
eb1ad317bd25b55b2bbdce8a28a74a94

SHA1
98a3978be4d10d62e7411946474579ee5bdc5ea6

SHA256
9e94e7c9ac6134ee30e79498558aa1a5a1ac79a643666c3f8922eed215dd3a98

SHA512
d011f266c0240d84470c0f9577cd9e4927309bd19bb38570ca9704ed8e1d159f9bea982a59d3eefef72ce7a10bd81208b82e88ef57c7af587f7437a89769adc0

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hlu205yz.pcz.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1728-1-0x00000000005F0000-0x000000000085E000-memory.dmp

Filesize
2.4MB

Download
memory/1728-0-0x00007FFEA0393000-0x00007FFEA0395000-memory.dmp

Filesize
8KB

Download
memory/2376-46-0x0000021CBE8C0000-0x0000021CBE8E2000-memory.dmp

Filesize
136KB

Download
memory/3488-30-0x0000000000CE0000-0x0000000000D24000-memory.dmp

Filesize
272KB

Download
memory/3488-91-0x00000000749FE000-0x00000000749FF000-memory.dmp

Filesize
4KB

Download
memory/3488-34-0x0000000005680000-0x000000000568A000-memory.dmp

Filesize
40KB

Download
memory/3488-36-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/3488-33-0x00000000055D0000-0x0000000005662000-memory.dmp

Filesize
584KB

Download
memory/3488-32-0x0000000005C60000-0x0000000006204000-memory.dmp

Filesize
5.6MB

Download
memory/3488-31-0x00000000749FE000-0x00000000749FF000-memory.dmp

Filesize
4KB

Download
memory/3488-116-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/3488-92-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/3488-39-0x0000000006210000-0x0000000006422000-memory.dmp

Filesize
2.1MB

Download
memory/4388-90-0x00007FFEA0390000-0x00007FFEA0E51000-memory.dmp

Filesize
10.8MB

Download
memory/4388-89-0x000000001B270000-0x000000001B280000-memory.dmp

Filesize
64KB

Download
memory/4388-29-0x00007FFEA0390000-0x00007FFEA0E51000-memory.dmp

Filesize
10.8MB

Download
memory/4388-28-0x0000000000550000-0x0000000000566000-memory.dmp

Filesize
88KB

Download