agenttesla | 783b5b92ea44666e1521eed1d7688f1bdf9044e83ac39258f9905397f52677dd

General

Target

PO 00009876660887666000.exe
Size

756KB
MD5

a17e477f9d45342182f01cac527c0c1f
SHA1

403e5d7d981f01b967e36dd98e06e70c9d7acf0c
SHA256

783b5b92ea44666e1521eed1d7688f1bdf9044e83ac39258f9905397f52677dd
SHA512

d3d8d4cf712a175ca0d61b44cab482d49166c15228c04c5c1da0984f80c40a9f848a2407f8696a660d6567ee1ee7468bbd95b1876f891be68a5028a2477c849a
SSDEEP

12288:52SLJDgeOPVpmYLlKmxvIv2NeXLoSIlAz44XsZZqStdNx57YDXmpcD:5hLJwrmSsmqv2Ne7oSZMX7jftYD2uD

Score

10^/10

agenttesla guloader discovery downloader execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.concaribe.com
Port:
21
Username:
[email protected]
Password:
ro}UWgz#!38E

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader

Loads dropped DLL 1 IoCs

pid	Process
2324	PO 00009876660887666000.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.

flow	ioc
23	api.ipify.org
24	api.ipify.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1008	wabmig.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2996	powershell.exe
1008	wabmig.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2996 set thread context of 1008	2996	powershell.exe	91

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Triolein\uropfrelsen.tir	PO 00009876660887666000.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2996	powershell.exe

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 3 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wabmig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO 00009876660887666000.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
2996	powershell.exe
2996	powershell.exe
2996	powershell.exe
2996	powershell.exe
2996	powershell.exe
2996	powershell.exe
2996	powershell.exe
2996	powershell.exe
2996	powershell.exe
1008	wabmig.exe
1008	wabmig.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2996	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2996	powershell.exe
Token: SeDebugPrivilege	1008	wabmig.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 2996	2324	PO 00009876660887666000.exe	82
PID 2324 wrote to memory of 2996	2324	PO 00009876660887666000.exe	82
PID 2324 wrote to memory of 2996	2324	PO 00009876660887666000.exe	82
PID 2996 wrote to memory of 1008	2996	powershell.exe	91
PID 2996 wrote to memory of 1008	2996	powershell.exe	91
PID 2996 wrote to memory of 1008	2996	powershell.exe	91
PID 2996 wrote to memory of 1008	2996	powershell.exe	91
PID 2996 wrote to memory of 1008	2996	powershell.exe	91

C:\Users\Admin\AppData\Local\Temp\PO 00009876660887666000.exe
"C:\Users\Admin\AppData\Local\Temp\PO 00009876660887666000.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" -windowstyle minimized "$Oem=Get-Content 'C:\Users\Admin\AppData\Roaming\djellabaer\Champagnizing183.Ret86';$Skydeklar93=$Oem.SubString(53372,3);.$Skydeklar93($Oem)"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of SetThreadContext
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2996
- - C:\Program Files (x86)\windows mail\wabmig.exe
    "C:\Program Files (x86)\windows mail\wabmig.exe"
    3⤵
    - Suspicious use of NtCreateThreadExHideFromDebugger
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1008

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yu2f4dp3.lpa.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsoC2A5.tmp\nsExec.dll

Filesize
6KB

MD5
3d366250fcf8b755fce575c75f8c79e4

SHA1
2ebac7df78154738d41aac8e27d7a0e482845c57

SHA256
8bdd996ae4778c6f829e2bcb651c55efc9ec37eeea17d259e013b39528dddbb6

SHA512
67d2d88de625227ccd2cb406b4ac3a215d1770d385c985a44e2285490f49b45f23ce64745b24444e2a0f581335fda02e913b92781043e8dfd287844435ba9094

Download Submit
C:\Users\Admin\AppData\Roaming\djellabaer\Champagnizing183.Ret86

Filesize
52KB

MD5
e7c25fcd57bcd42038143a6928274367

SHA1
ccfab30faef7de037ae6bcfdd144a2e6b10b1455

SHA256
187adbae17615b37ae386ebadb4347a41f2a3e994939e832e96f342d91f9d916

SHA512
1ead97118d2c03e5ddf13412dfa2477c3f11ecbda54ba7439d24206c0f5cffb80581b47ef0ab32cf8b35e8a089f78fb84792b8e154b1e10a3a7e29f914c77969

Download Submit
C:\Users\Admin\AppData\Roaming\djellabaer\Uruguayererne.Dec

Filesize
323KB

MD5
c63b35457e3f441b055e33bf5fefe527

SHA1
a667f3c9aab680e32649c448a82acfc6248547ee

SHA256
5fb4c0b14e27e026650eac4da2101b83d70c3a39f8cc008ab5e5c4fcd7837b00

SHA512
3532bbc907ca4a2633550d9eff54325108d8592413138b3397014ae50e13c03cf7f96595dfa42350ee966c1b1e329c7a4e810a019d77c08a7045c4f28d70ba34

Download Submit
memory/1008-58-0x0000000022B00000-0x0000000022B0A000-memory.dmp

Filesize
40KB

Download
memory/1008-57-0x0000000022C10000-0x0000000022CA2000-memory.dmp

Filesize
584KB

Download
memory/1008-56-0x0000000022B20000-0x0000000022B70000-memory.dmp

Filesize
320KB

Download
memory/1008-55-0x0000000000800000-0x0000000000842000-memory.dmp

Filesize
264KB

Download
memory/1008-53-0x0000000000800000-0x0000000001A54000-memory.dmp

Filesize
18.3MB

Download
memory/1008-50-0x0000000001A60000-0x000000000418D000-memory.dmp

Filesize
39.2MB

Download
memory/2996-38-0x00000000080E0000-0x000000000875A000-memory.dmp

Filesize
6.5MB

Download
memory/2996-44-0x00000000733D0000-0x0000000073B80000-memory.dmp

Filesize
7.7MB

Download
memory/2996-32-0x0000000005DF0000-0x0000000005E3C000-memory.dmp

Filesize
304KB

Download
memory/2996-33-0x0000000006E60000-0x0000000006EF6000-memory.dmp

Filesize
600KB

Download
memory/2996-34-0x00000000062B0000-0x00000000062CA000-memory.dmp

Filesize
104KB

Download
memory/2996-35-0x0000000006300000-0x0000000006322000-memory.dmp

Filesize
136KB

Download
memory/2996-36-0x00000000074B0000-0x0000000007A54000-memory.dmp

Filesize
5.6MB

Download
memory/2996-26-0x0000000005760000-0x0000000005AB4000-memory.dmp

Filesize
3.3MB

Download
memory/2996-20-0x0000000005660000-0x00000000056C6000-memory.dmp

Filesize
408KB

Download
memory/2996-40-0x00000000733D0000-0x0000000073B80000-memory.dmp

Filesize
7.7MB

Download
memory/2996-41-0x00000000733D0000-0x0000000073B80000-memory.dmp

Filesize
7.7MB

Download
memory/2996-42-0x00000000733D0000-0x0000000073B80000-memory.dmp

Filesize
7.7MB

Download
memory/2996-19-0x00000000055F0000-0x0000000005656000-memory.dmp

Filesize
408KB

Download
memory/2996-31-0x0000000005DB0000-0x0000000005DCE000-memory.dmp

Filesize
120KB

Download
memory/2996-45-0x00000000733DE000-0x00000000733DF000-memory.dmp

Filesize
4KB

Download
memory/2996-47-0x00000000733D0000-0x0000000073B80000-memory.dmp

Filesize
7.7MB

Download
memory/2996-46-0x0000000008760000-0x000000000AE8D000-memory.dmp

Filesize
39.2MB

Download
memory/2996-48-0x00000000733D0000-0x0000000073B80000-memory.dmp

Filesize
7.7MB

Download
memory/2996-49-0x00000000733D0000-0x0000000073B80000-memory.dmp

Filesize
7.7MB

Download
memory/2996-18-0x0000000004E00000-0x0000000004E22000-memory.dmp

Filesize
136KB

Download
memory/2996-51-0x00000000733D0000-0x0000000073B80000-memory.dmp

Filesize
7.7MB

Download
memory/2996-17-0x00000000733D0000-0x0000000073B80000-memory.dmp

Filesize
7.7MB

Download
memory/2996-16-0x0000000004F50000-0x0000000005578000-memory.dmp

Filesize
6.2MB

Download
memory/2996-54-0x00000000733D0000-0x0000000073B80000-memory.dmp

Filesize
7.7MB

Download
memory/2996-15-0x00000000733D0000-0x0000000073B80000-memory.dmp

Filesize
7.7MB

Download
memory/2996-14-0x00000000027B0000-0x00000000027E6000-memory.dmp

Filesize
216KB

Download
memory/2996-13-0x00000000733DE000-0x00000000733DF000-memory.dmp

Filesize
4KB

Download

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