agenttesla | b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a

General

Target

b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe
Size

622KB
MD5

467111735472753ad98e8500663b1de7
SHA1

8986442fd28e74c6f55baf354002dd678f73995e
SHA256

b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a
SHA512

892f17af5c873a5e9717c72b1c5c7783536872e89e42663079c9f0848b8a104ad29d231ae7bd4a62d6fd49996ac5fb516dffd058cbe26e5f74ef4cad7306894e
SSDEEP

12288:aa5WDRFksUKQNuqq2QJrK9E8qIr18hrQBQKXXUaHMvA1dmGBLyrN1H80UjHgJ:+HkswdxkrK9E8zrWJcxt9dmKyrN1u

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.flying-fish-cn.com
Port:
587
Username:
office@flying-fish-cn.com
Password:
hkk999@@@

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.flying-fish-cn.com
Port:
587
Username:
office@flying-fish-cn.com
Password:
hkk999@@@
Email To:
office@flying-fish-cn.com

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/4288-12-0x0000000000400000-0x0000000000440000-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/4288-12-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables packed with SmartAssembly 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4404-8-0x0000000005910000-0x000000000591C000-memory.dmp	INDICATOR_EXE_Packed_SmartAssembly

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

Processes:

resource	yara_rule
behavioral2/memory/4288-12-0x0000000000400000-0x0000000000440000-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/4288-12-0x0000000000400000-0x0000000000440000-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/4288-12-0x0000000000400000-0x0000000000440000-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/4288-12-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

17 api.ipify.org
16 api.ipify.org

flow	ioc
17	api.ipify.org
16	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

Processes:

b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe

description	pid	process	target process
PID 4404 set thread context of 4288	4404	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

Processes:

b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exeb85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe

pid	process
4404	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe
4404	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe
4404	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe
4404	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe
4404	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe
4404	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe
4404	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe
4404	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe
4404	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe
4288	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe
4288	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exeb85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe

description	pid	process
Token: SeDebugPrivilege	4404	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe
Token: SeDebugPrivilege	4288	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe

description	pid	process	target process
PID 4404 wrote to memory of 4288	4404	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe
PID 4404 wrote to memory of 4288	4404	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe
PID 4404 wrote to memory of 4288	4404	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe
PID 4404 wrote to memory of 4288	4404	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe
PID 4404 wrote to memory of 4288	4404	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe
PID 4404 wrote to memory of 4288	4404	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe
PID 4404 wrote to memory of 4288	4404	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe
PID 4404 wrote to memory of 4288	4404	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe	b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe

C:\Users\Admin\AppData\Local\Temp\b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe
"C:\Users\Admin\AppData\Local\Temp\b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4404

C:\Users\Admin\AppData\Local\Temp\b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe
"C:\Users\Admin\AppData\Local\Temp\b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4288

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Lateral Movement

Collection

Data from Local System

4

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\b85123da03ee5c76a1a98d7b8a5c56cc07efe444b9cbf9f2c1f8813fa324ce6a.exe.log
Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/4288-12-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/4288-21-0x0000000005910000-0x0000000005920000-memory.dmp

Filesize
64KB

Download
memory/4288-20-0x0000000074F50000-0x0000000075700000-memory.dmp

Filesize
7.7MB

Download
memory/4288-19-0x0000000006ED0000-0x0000000006F20000-memory.dmp

Filesize
320KB

Download
memory/4288-18-0x00000000059B0000-0x0000000005A16000-memory.dmp

Filesize
408KB

Download
memory/4288-17-0x0000000005910000-0x0000000005920000-memory.dmp

Filesize
64KB

Download
memory/4288-16-0x0000000074F50000-0x0000000075700000-memory.dmp

Filesize
7.7MB

Download
memory/4404-10-0x0000000074F50000-0x0000000075700000-memory.dmp

Filesize
7.7MB

Download
memory/4404-9-0x0000000006C40000-0x0000000006CC2000-memory.dmp

Filesize
520KB

Download
memory/4404-1-0x0000000074F50000-0x0000000075700000-memory.dmp

Filesize
7.7MB

Download
memory/4404-11-0x0000000005940000-0x0000000005950000-memory.dmp

Filesize
64KB

Download
memory/4404-8-0x0000000005910000-0x000000000591C000-memory.dmp

Filesize
48KB

Download
memory/4404-7-0x0000000005900000-0x0000000005912000-memory.dmp

Filesize
72KB

Download
memory/4404-6-0x0000000005950000-0x00000000059EC000-memory.dmp

Filesize
624KB

Download
memory/4404-15-0x0000000074F50000-0x0000000075700000-memory.dmp

Filesize
7.7MB

Download
memory/4404-5-0x0000000005690000-0x000000000569A000-memory.dmp

Filesize
40KB

Download
memory/4404-4-0x0000000005940000-0x0000000005950000-memory.dmp

Filesize
64KB

Download
memory/4404-3-0x00000000056C0000-0x0000000005752000-memory.dmp

Filesize
584KB

Download
memory/4404-2-0x0000000005BD0000-0x0000000006174000-memory.dmp

Filesize
5.6MB

Download
memory/4404-0-0x0000000000C00000-0x0000000000CA0000-memory.dmp

Filesize
640KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads