agenttesla | ba56d12e7e4a9881bf9d8dd6859757ac2df68218b41bc64d38ccad08e5403ac3

General

Target

Inquiry.exe
Size

602KB
MD5

cdef16a2a2116cd907aa817b11217cfd
SHA1

d23ba1f017c0e65ba65203c889a2bea963d63d3a
SHA256

da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6
SHA512

9ad7168fd876ceb36229330092f2f70d5a305e9422ff7cc321684c3210ad217a214ed517041f0738eb1a98b977232dcf01d8f8e6a3ca03e3a6261baef94d90ae
SSDEEP

12288:lYyGYZS6ESbpYa4i2BzmVNhsBQN/nRTOPihFr3iUR42q6N:IUDESbwylT/nRKWrPN

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
terminal4.veeblehosting.com
Port:
587
Username:
[email protected]
Password:
Ifeanyi1987@
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

Processes:

resource	yara_rule
behavioral2/memory/3944-14-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01

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

Processes:

resource	yara_rule
behavioral2/memory/3944-14-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

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

Processes:

resource	yara_rule
behavioral2/memory/3944-14-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL

Detects executables packed with or use KoiVM 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3348-3-0x000002395A020000-0x000002395A0B6000-memory.dmp	INDICATOR_EXE_Packed_KoiVM

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

Processes:

resource	yara_rule
behavioral2/memory/3944-14-0x0000000000400000-0x0000000000442000-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

Processes:

resource	yara_rule
behavioral2/memory/3944-14-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

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

Processes:

resource	yara_rule
behavioral2/memory/3944-14-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

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

Processes:

resource	yara_rule
behavioral2/memory/3944-14-0x0000000000400000-0x0000000000442000-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

Processes:

Inquiry.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	Inquiry.exe

Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

3020 svchost.exe

pid	process
3020	svchost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Inquiry.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\""	Inquiry.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.

Processes:

flow ioc

33 ip-api.com
Suspicious use of SetThreadContext 1 IoCs

Processes:

svchost.exe

description pid process target process

PID 3020 set thread context of 3944 3020 svchost.exe msbuild.exe
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

Processes:

schtasks.exe

pid process

2116 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2804 timeout.exe

flow	ioc
33	ip-api.com

description	pid	process	target process
PID 3020 set thread context of 3944	3020	svchost.exe	msbuild.exe

pid	process
2116	schtasks.exe

pid	process
2804	timeout.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

Processes:

Inquiry.exemsbuild.exe

pid	process
3348	Inquiry.exe
3348	Inquiry.exe
3348	Inquiry.exe
3348	Inquiry.exe
3348	Inquiry.exe
3348	Inquiry.exe
3348	Inquiry.exe
3348	Inquiry.exe
3348	Inquiry.exe
3348	Inquiry.exe
3348	Inquiry.exe
3348	Inquiry.exe
3348	Inquiry.exe
3348	Inquiry.exe
3348	Inquiry.exe
3348	Inquiry.exe
3348	Inquiry.exe
3348	Inquiry.exe
3348	Inquiry.exe
3348	Inquiry.exe
3348	Inquiry.exe
3348	Inquiry.exe
3348	Inquiry.exe
3944	msbuild.exe
3944	msbuild.exe
3944	msbuild.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Inquiry.exesvchost.exemsbuild.exe

description pid process

Token: SeDebugPrivilege 3348 Inquiry.exe
Token: SeDebugPrivilege 3020 svchost.exe
Token: SeDebugPrivilege 3944 msbuild.exe

description	pid	process
Token: SeDebugPrivilege	3348	Inquiry.exe
Token: SeDebugPrivilege	3020	svchost.exe
Token: SeDebugPrivilege	3944	msbuild.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

Inquiry.execmd.execmd.exesvchost.exe

description	pid	process	target process
PID 3348 wrote to memory of 2528	3348	Inquiry.exe	cmd.exe
PID 3348 wrote to memory of 2528	3348	Inquiry.exe	cmd.exe
PID 3348 wrote to memory of 2336	3348	Inquiry.exe	cmd.exe
PID 3348 wrote to memory of 2336	3348	Inquiry.exe	cmd.exe
PID 2528 wrote to memory of 2116	2528	cmd.exe	schtasks.exe
PID 2528 wrote to memory of 2116	2528	cmd.exe	schtasks.exe
PID 2336 wrote to memory of 2804	2336	cmd.exe	timeout.exe
PID 2336 wrote to memory of 2804	2336	cmd.exe	timeout.exe
PID 2336 wrote to memory of 3020	2336	cmd.exe	svchost.exe
PID 2336 wrote to memory of 3020	2336	cmd.exe	svchost.exe
PID 3020 wrote to memory of 3944	3020	svchost.exe	msbuild.exe
PID 3020 wrote to memory of 3944	3020	svchost.exe	msbuild.exe
PID 3020 wrote to memory of 3944	3020	svchost.exe	msbuild.exe
PID 3020 wrote to memory of 3944	3020	svchost.exe	msbuild.exe
PID 3020 wrote to memory of 3944	3020	svchost.exe	msbuild.exe
PID 3020 wrote to memory of 3944	3020	svchost.exe	msbuild.exe
PID 3020 wrote to memory of 3944	3020	svchost.exe	msbuild.exe
PID 3020 wrote to memory of 3944	3020	svchost.exe	msbuild.exe

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\Inquiry.exe
"C:\Users\Admin\AppData\Local\Temp\Inquiry.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3348

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:2528

C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
3⤵
- Creates scheduled task(s)
PID:2116

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp124.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:2336

C:\Windows\system32\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:2804

C:\Users\Admin\AppData\Roaming\svchost.exe
"C:\Users\Admin\AppData\Roaming\svchost.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3020

C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3944

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 --no-appcompat-clear --mojo-platform-channel-handle=1312 --field-trial-handle=2284,i,9807419199535700662,2319175108930815708,262144 --variations-seed-version /prefetch:8
1⤵
PID:4296

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp124.tmp.bat
Filesize
150B

MD5
cfbbf52a460303d90d85040f45615e27

SHA1
7fc6f8886ad3c28bb4f50347de87e73e6446b6b2

SHA256
2175d8ee478fa50bdbefc243bc38d3629e8d6265b711bbdaa40e8b5d69f5d426

SHA512
ecaec7ee227b7cf8b9f9c53681af2dc4aebce46b9b24d1cc0feec963ddb69f0de47992d247df951abb492e5efed74fa22bdd25d4185c1c371782a2e6ac81706f

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe
Filesize
602KB

MD5
cdef16a2a2116cd907aa817b11217cfd

SHA1
d23ba1f017c0e65ba65203c889a2bea963d63d3a

SHA256
da6572812314662cf364e04dc4db580245e4598063fe952cb509575ca88392f6

SHA512
9ad7168fd876ceb36229330092f2f70d5a305e9422ff7cc321684c3210ad217a214ed517041f0738eb1a98b977232dcf01d8f8e6a3ca03e3a6261baef94d90ae

Download Submit
memory/3020-16-0x00007FFE5EFE0000-0x00007FFE5FAA1000-memory.dmp

Filesize
10.8MB

Download
memory/3020-13-0x00007FFE5EFE0000-0x00007FFE5FAA1000-memory.dmp

Filesize
10.8MB

Download
memory/3348-1-0x00007FFE5F770000-0x00007FFE60231000-memory.dmp

Filesize
10.8MB

Download
memory/3348-2-0x000002393F1D0000-0x000002393F1E0000-memory.dmp

Filesize
64KB

Download
memory/3348-3-0x000002395A020000-0x000002395A0B6000-memory.dmp

Filesize
600KB

Download
memory/3348-8-0x00007FFE5F770000-0x00007FFE60231000-memory.dmp

Filesize
10.8MB

Download
memory/3348-0-0x000002393EDA0000-0x000002393EDA8000-memory.dmp

Filesize
32KB

Download
memory/3944-14-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/3944-15-0x0000000074AE0000-0x0000000075290000-memory.dmp

Filesize
7.7MB

Download
memory/3944-17-0x0000000005930000-0x0000000005ED4000-memory.dmp

Filesize
5.6MB

Download
memory/3944-18-0x00000000052E0000-0x00000000052F0000-memory.dmp

Filesize
64KB

Download
memory/3944-19-0x0000000005480000-0x00000000054E6000-memory.dmp

Filesize
408KB

Download
memory/3944-20-0x0000000006720000-0x0000000006770000-memory.dmp

Filesize
320KB

Download
memory/3944-21-0x0000000006810000-0x00000000068A2000-memory.dmp

Filesize
584KB

Download
memory/3944-22-0x00000000067A0000-0x00000000067AA000-memory.dmp

Filesize
40KB

Download
memory/3944-23-0x0000000074AE0000-0x0000000075290000-memory.dmp

Filesize
7.7MB

Download
memory/3944-24-0x00000000052E0000-0x00000000052F0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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