agenttesla | b92feb510c36837038c44d8ab317c2ea5634013cfb07b3ae1ef715ee5f17df58

General

Target

SHIPPING DOCS _234372.PDF.exe
Size

385KB
MD5

a08a2bda9c51b2d5ca1e38435629cacc
SHA1

46107a6be4613e6c2d1f9e08af63de089417ea10
SHA256

6f4d9739f62d219787f6de178ab8f5fb29f317cac258c567d8d51cddea7aa4ac
SHA512

d3be87d66877a4cf71f2edccd0863c180630b979214c40170fa5585a878f5ea32efa2c10fbd7f6129362b672230978af32f9618cd71a69be3f087f3b56aaf411

Score

10^/10

agenttesla evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.microtechlab.in
Port:
587
Username:
reports@microtechlab.in
Password:
pune@123

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/5048-139-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

Disables Task Manager via registry modification
evasion
Drops file in Drivers directory 1 IoCs

Processes:

RegSvcs.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegSvcs.exe

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:

SHIPPING DOCS _234372.PDF.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	SHIPPING DOCS _234372.PDF.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

SHIPPING DOCS _234372.PDF.exe

description pid process target process

PID 2156 set thread context of 5048 2156 SHIPPING DOCS _234372.PDF.exe RegSvcs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2504 5048 WerFault.exe RegSvcs.exe
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
T1053

Processes:

schtasks.exe

pid process

4396 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

3228 REG.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

SHIPPING DOCS _234372.PDF.exeRegSvcs.exe

pid process

2156 SHIPPING DOCS _234372.PDF.exe
2156 SHIPPING DOCS _234372.PDF.exe
2156 SHIPPING DOCS _234372.PDF.exe
5048 RegSvcs.exe
5048 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

SHIPPING DOCS _234372.PDF.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 2156 SHIPPING DOCS _234372.PDF.exe
Token: SeDebugPrivilege 5048 RegSvcs.exe

description	pid	process	target process
PID 2156 set thread context of 5048	2156	SHIPPING DOCS _234372.PDF.exe	RegSvcs.exe

pid	pid_target	process	target process
2504	5048	WerFault.exe	RegSvcs.exe

pid	process
4396	schtasks.exe

pid	process
3228	REG.exe

pid	process
2156	SHIPPING DOCS _234372.PDF.exe
2156	SHIPPING DOCS _234372.PDF.exe
2156	SHIPPING DOCS _234372.PDF.exe
5048	RegSvcs.exe
5048	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	2156	SHIPPING DOCS _234372.PDF.exe
Token: SeDebugPrivilege	5048	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

SHIPPING DOCS _234372.PDF.exeRegSvcs.exe

description	pid	process	target process
PID 2156 wrote to memory of 4396	2156	SHIPPING DOCS _234372.PDF.exe	schtasks.exe
PID 2156 wrote to memory of 4396	2156	SHIPPING DOCS _234372.PDF.exe	schtasks.exe
PID 2156 wrote to memory of 4396	2156	SHIPPING DOCS _234372.PDF.exe	schtasks.exe
PID 2156 wrote to memory of 4512	2156	SHIPPING DOCS _234372.PDF.exe	RegSvcs.exe
PID 2156 wrote to memory of 4512	2156	SHIPPING DOCS _234372.PDF.exe	RegSvcs.exe
PID 2156 wrote to memory of 4512	2156	SHIPPING DOCS _234372.PDF.exe	RegSvcs.exe
PID 2156 wrote to memory of 5048	2156	SHIPPING DOCS _234372.PDF.exe	RegSvcs.exe
PID 2156 wrote to memory of 5048	2156	SHIPPING DOCS _234372.PDF.exe	RegSvcs.exe
PID 2156 wrote to memory of 5048	2156	SHIPPING DOCS _234372.PDF.exe	RegSvcs.exe
PID 2156 wrote to memory of 5048	2156	SHIPPING DOCS _234372.PDF.exe	RegSvcs.exe
PID 2156 wrote to memory of 5048	2156	SHIPPING DOCS _234372.PDF.exe	RegSvcs.exe
PID 2156 wrote to memory of 5048	2156	SHIPPING DOCS _234372.PDF.exe	RegSvcs.exe
PID 2156 wrote to memory of 5048	2156	SHIPPING DOCS _234372.PDF.exe	RegSvcs.exe
PID 2156 wrote to memory of 5048	2156	SHIPPING DOCS _234372.PDF.exe	RegSvcs.exe
PID 5048 wrote to memory of 3228	5048	RegSvcs.exe	REG.exe
PID 5048 wrote to memory of 3228	5048	RegSvcs.exe	REG.exe
PID 5048 wrote to memory of 3228	5048	RegSvcs.exe	REG.exe
PID 5048 wrote to memory of 3748	5048	RegSvcs.exe	netsh.exe
PID 5048 wrote to memory of 3748	5048	RegSvcs.exe	netsh.exe
PID 5048 wrote to memory of 3748	5048	RegSvcs.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\SHIPPING DOCS _234372.PDF.exe
"C:\Users\Admin\AppData\Local\Temp\SHIPPING DOCS _234372.PDF.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2156

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uWSnfNAErz" /XML "C:\Users\Admin\AppData\Local\Temp\tmp58BF.tmp"
2⤵
- Creates scheduled task(s)
PID:4396

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:4512

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5048

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
3⤵
- Modifies registry key
PID:3228

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:3748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5048 -s 1560
3⤵
- Program crash
PID:2504

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 5048 -ip 5048
1⤵
PID:492

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp58BF.tmp
Filesize
1KB

MD5
0188d888ca9076f1c8d34192055e9c25

SHA1
db40472c83a393f9a056820b2dcd48f517e7d463

SHA256
726ab7fc7597d83c8821ff8ddd5bec3ee90c18f42fe44a3d6256882a35774ab2

SHA512
8f66afa53d6e0221d51fa19951ff8fe1d4711ed3268bd8c00fed8d30a695684747baeb8479b36bff3e4d493809673a4198e4c7efe6c7c931926143a22409b5d8

Download Submit
memory/2156-132-0x0000000005560000-0x00000000055FC000-memory.dmp

Filesize
624KB

Download
memory/2156-133-0x00000000056A0000-0x0000000005732000-memory.dmp

Filesize
584KB

Download
memory/2156-134-0x0000000006350000-0x00000000068F4000-memory.dmp

Filesize
5.6MB

Download
memory/2156-131-0x0000000000B70000-0x0000000000BD6000-memory.dmp

Filesize
408KB

Download
memory/3228-141-0x0000000000000000-mapping.dmp

Download
memory/3748-143-0x0000000000000000-mapping.dmp

Download
memory/4396-135-0x0000000000000000-mapping.dmp

Download
memory/4512-137-0x0000000000000000-mapping.dmp

Download
memory/5048-140-0x0000000005AA0000-0x0000000005B06000-memory.dmp

Filesize
408KB

Download
memory/5048-139-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/5048-142-0x0000000006640000-0x0000000006690000-memory.dmp

Filesize
320KB

Download
memory/5048-138-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads