agenttesla | b48a14f185cfd77e01733db2837277db8f47d04f77e6ac7093f0a88927a115fc

General

Target

b48a14f185cfd77e01733db2837277db8f47d04f77e6ac7093f0a88927a115fc.exe
Size

1.3MB
MD5

280ae1955701d5f84f59ef9f5b8c7412
SHA1

6651afec36ec273a284886892bb22050c3f9931e
SHA256

b48a14f185cfd77e01733db2837277db8f47d04f77e6ac7093f0a88927a115fc
SHA512

e08e57ff1d43ae83451ee99844a7e755ffd3d46f972fbbb8f8779e01413e65fe27cec6701e356a0bc010b827a73045b77b44db098385109f0fa6efd52e9262ed
SSDEEP

24576:ksP3iN7BBmctIoM9jyTPom1msR2vzqtk9Cc2eWhCM6aHay1f5t:kpFBmcm56wGmXv2qYIWQba68D

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.medicalhome.com.pe
Port:
587
Username:
[email protected]
Password:
MHinfo01
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/5044-4-0x0000000000400000-0x0000000000476000-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/5044-4-0x0000000000400000-0x0000000000476000-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/5044-4-0x0000000000400000-0x0000000000476000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL

Detects executables packed with or use KoiVM 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4364-3-0x0000027C24830000-0x0000027C248FC000-memory.dmp	INDICATOR_EXE_Packed_KoiVM

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

Processes:

resource	yara_rule
behavioral2/memory/5044-4-0x0000000000400000-0x0000000000476000-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/5044-4-0x0000000000400000-0x0000000000476000-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/5044-4-0x0000000000400000-0x0000000000476000-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/5044-4-0x0000000000400000-0x0000000000476000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

msbuild.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\GrOcCQC = "C:\\Users\\Admin\\AppData\\Roaming\\GrOcCQC\\GrOcCQC.exe"	msbuild.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

3 ip-api.com

flow	ioc
3	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

Processes:

b48a14f185cfd77e01733db2837277db8f47d04f77e6ac7093f0a88927a115fc.exe

description	pid	process	target process
PID 4364 set thread context of 5044	4364	b48a14f185cfd77e01733db2837277db8f47d04f77e6ac7093f0a88927a115fc.exe	msbuild.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

msbuild.exe

pid process

5044 msbuild.exe
5044 msbuild.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

msbuild.exe

description pid process

Token: SeDebugPrivilege 5044 msbuild.exe

pid	process
5044	msbuild.exe
5044	msbuild.exe

description	pid	process
Token: SeDebugPrivilege	5044	msbuild.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

b48a14f185cfd77e01733db2837277db8f47d04f77e6ac7093f0a88927a115fc.exe

description	pid	process	target process
PID 4364 wrote to memory of 5044	4364	b48a14f185cfd77e01733db2837277db8f47d04f77e6ac7093f0a88927a115fc.exe	msbuild.exe
PID 4364 wrote to memory of 5044	4364	b48a14f185cfd77e01733db2837277db8f47d04f77e6ac7093f0a88927a115fc.exe	msbuild.exe
PID 4364 wrote to memory of 5044	4364	b48a14f185cfd77e01733db2837277db8f47d04f77e6ac7093f0a88927a115fc.exe	msbuild.exe
PID 4364 wrote to memory of 5044	4364	b48a14f185cfd77e01733db2837277db8f47d04f77e6ac7093f0a88927a115fc.exe	msbuild.exe
PID 4364 wrote to memory of 5044	4364	b48a14f185cfd77e01733db2837277db8f47d04f77e6ac7093f0a88927a115fc.exe	msbuild.exe
PID 4364 wrote to memory of 5044	4364	b48a14f185cfd77e01733db2837277db8f47d04f77e6ac7093f0a88927a115fc.exe	msbuild.exe
PID 4364 wrote to memory of 5044	4364	b48a14f185cfd77e01733db2837277db8f47d04f77e6ac7093f0a88927a115fc.exe	msbuild.exe
PID 4364 wrote to memory of 5044	4364	b48a14f185cfd77e01733db2837277db8f47d04f77e6ac7093f0a88927a115fc.exe	msbuild.exe
PID 4364 wrote to memory of 4392	4364	b48a14f185cfd77e01733db2837277db8f47d04f77e6ac7093f0a88927a115fc.exe	msbuild.exe
PID 4364 wrote to memory of 4392	4364	b48a14f185cfd77e01733db2837277db8f47d04f77e6ac7093f0a88927a115fc.exe	msbuild.exe
PID 4364 wrote to memory of 4392	4364	b48a14f185cfd77e01733db2837277db8f47d04f77e6ac7093f0a88927a115fc.exe	msbuild.exe

C:\Users\Admin\AppData\Local\Temp\b48a14f185cfd77e01733db2837277db8f47d04f77e6ac7093f0a88927a115fc.exe
"C:\Users\Admin\AppData\Local\Temp\b48a14f185cfd77e01733db2837277db8f47d04f77e6ac7093f0a88927a115fc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4364

C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5044

C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"
2⤵
PID:4392

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

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

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

memory/4364-9-0x00007FFF5DEC0000-0x00007FFF5E981000-memory.dmp

Filesize
10.8MB

Download
memory/4364-1-0x00007FFF5DEC0000-0x00007FFF5E981000-memory.dmp

Filesize
10.8MB

Download
memory/4364-2-0x0000027C0C000000-0x0000027C0C010000-memory.dmp

Filesize
64KB

Download
memory/4364-3-0x0000027C24830000-0x0000027C248FC000-memory.dmp

Filesize
816KB

Download
memory/4364-0-0x0000027C0A300000-0x0000027C0A380000-memory.dmp

Filesize
512KB

Download
memory/5044-8-0x0000000005510000-0x0000000005576000-memory.dmp

Filesize
408KB

Download
memory/5044-5-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/5044-7-0x00000000053D0000-0x00000000053E0000-memory.dmp

Filesize
64KB

Download
memory/5044-6-0x00000000059C0000-0x0000000005F64000-memory.dmp

Filesize
5.6MB

Download
memory/5044-4-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/5044-12-0x00000000067C0000-0x0000000006810000-memory.dmp

Filesize
320KB

Download
memory/5044-13-0x0000000006950000-0x00000000069E2000-memory.dmp

Filesize
584KB

Download
memory/5044-14-0x0000000006840000-0x000000000684A000-memory.dmp

Filesize
40KB

Download
memory/5044-15-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/5044-16-0x00000000053D0000-0x00000000053E0000-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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Downloads