agenttesla | 5710878413615a629139b9d577c3fe4a603038a1cc5ac73a9f98b1b5d6e88854

General

Target

confirm below invoice.exe
Size

798KB
MD5

622f89217d5c630c8493f356a3ed5e23
SHA1

c8275a16747ae7c550f1b14e71c91dc06eb1ceef
SHA256

f1be45f58c89c8b3b77fda6341568c4388d95ded7597304a04b98c57ddfc4a6c
SHA512

e0ecf783296afac12ce6ac7567721f5ae9542047f145fd4f40703840781cf34e5b19229f3df9ffc07981e4b085881ca4a41d3c7076abdc31180fdaf5588d335e

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.ckclegal.com
Port:
587
Username:
[email protected]
Password:
S1_CJLP=XwM+

Signatures

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

AgentTesla Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1132-126-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/1132-127-0x00000000004376DE-mapping.dmp	family_agenttesla
behavioral2/memory/1132-133-0x0000000005080000-0x000000000557E000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

confirm below invoice.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts confirm below invoice.exe
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
T1081
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
T1081
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
T1081

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

confirm below invoice.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\WCPCe = "C:\\Users\\Admin\\AppData\\Roaming\\WCPCe\\WCPCe.exe"	confirm below invoice.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

confirm below invoice.exe

description pid process target process

PID 3952 set thread context of 1132 3952 confirm below invoice.exe confirm below invoice.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

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
T1053

Processes:

schtasks.exe

pid process

2004 schtasks.exe

description	pid	process	target process
PID 3952 set thread context of 1132	3952	confirm below invoice.exe	confirm below invoice.exe

pid	process
2004	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

confirm below invoice.execonfirm below invoice.exe

pid	process
3952	confirm below invoice.exe
3952	confirm below invoice.exe
3952	confirm below invoice.exe
3952	confirm below invoice.exe
3952	confirm below invoice.exe
3952	confirm below invoice.exe
1132	confirm below invoice.exe
1132	confirm below invoice.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

confirm below invoice.execonfirm below invoice.exe

description pid process

Token: SeDebugPrivilege 3952 confirm below invoice.exe
Token: SeDebugPrivilege 1132 confirm below invoice.exe

description	pid	process
Token: SeDebugPrivilege	3952	confirm below invoice.exe
Token: SeDebugPrivilege	1132	confirm below invoice.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

confirm below invoice.exe

description	pid	process	target process
PID 3952 wrote to memory of 2004	3952	confirm below invoice.exe	schtasks.exe
PID 3952 wrote to memory of 2004	3952	confirm below invoice.exe	schtasks.exe
PID 3952 wrote to memory of 2004	3952	confirm below invoice.exe	schtasks.exe
PID 3952 wrote to memory of 2244	3952	confirm below invoice.exe	confirm below invoice.exe
PID 3952 wrote to memory of 2244	3952	confirm below invoice.exe	confirm below invoice.exe
PID 3952 wrote to memory of 2244	3952	confirm below invoice.exe	confirm below invoice.exe
PID 3952 wrote to memory of 2980	3952	confirm below invoice.exe	confirm below invoice.exe
PID 3952 wrote to memory of 2980	3952	confirm below invoice.exe	confirm below invoice.exe
PID 3952 wrote to memory of 2980	3952	confirm below invoice.exe	confirm below invoice.exe
PID 3952 wrote to memory of 3012	3952	confirm below invoice.exe	confirm below invoice.exe
PID 3952 wrote to memory of 3012	3952	confirm below invoice.exe	confirm below invoice.exe
PID 3952 wrote to memory of 3012	3952	confirm below invoice.exe	confirm below invoice.exe
PID 3952 wrote to memory of 1132	3952	confirm below invoice.exe	confirm below invoice.exe
PID 3952 wrote to memory of 1132	3952	confirm below invoice.exe	confirm below invoice.exe
PID 3952 wrote to memory of 1132	3952	confirm below invoice.exe	confirm below invoice.exe
PID 3952 wrote to memory of 1132	3952	confirm below invoice.exe	confirm below invoice.exe
PID 3952 wrote to memory of 1132	3952	confirm below invoice.exe	confirm below invoice.exe
PID 3952 wrote to memory of 1132	3952	confirm below invoice.exe	confirm below invoice.exe
PID 3952 wrote to memory of 1132	3952	confirm below invoice.exe	confirm below invoice.exe
PID 3952 wrote to memory of 1132	3952	confirm below invoice.exe	confirm below invoice.exe

C:\Users\Admin\AppData\Local\Temp\confirm below invoice.exe
"C:\Users\Admin\AppData\Local\Temp\confirm below invoice.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3952

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KBwCphfzgiBQUi" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB144.tmp"
2⤵
- Creates scheduled task(s)
PID:2004

C:\Users\Admin\AppData\Local\Temp\confirm below invoice.exe
"{path}"
2⤵
PID:2244

C:\Users\Admin\AppData\Local\Temp\confirm below invoice.exe
"{path}"
2⤵
PID:2980

C:\Users\Admin\AppData\Local\Temp\confirm below invoice.exe
"{path}"
2⤵
PID:3012

C:\Users\Admin\AppData\Local\Temp\confirm below invoice.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1132

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\confirm below invoice.exe.log

MD5
0c2899d7c6746f42d5bbe088c777f94c

SHA1
622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

SHA256
5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

SHA512
ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB144.tmp

MD5
1833104fa96175d07c5c0b6cd6853513

SHA1
b0d42e9a6bf5b534130af7a1833f996de31d38fd

SHA256
01641a58919fb4f6e6a10e20d564817434a7f991a64baacec05874e5b9b4c7a0

SHA512
2476bf9a155490d55609dfa9c3c51b0bb0fd09b128bdc94b3f70e7de1d8da32ebd9394a683132cd236f96e8339d64631669751b167e5981be3ed38b5760f4877

Download Submit
memory/1132-135-0x0000000005D40000-0x0000000005D41000-memory.dmp

Filesize
4KB

Download
memory/1132-134-0x0000000005CB0000-0x0000000005CB1000-memory.dmp

Filesize
4KB

Download
memory/1132-133-0x0000000005080000-0x000000000557E000-memory.dmp

Filesize
5.0MB

Download
memory/1132-127-0x00000000004376DE-mapping.dmp

Download
memory/1132-126-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2004-124-0x0000000000000000-mapping.dmp

Download
memory/3952-119-0x0000000000C90000-0x0000000000C91000-memory.dmp

Filesize
4KB

Download
memory/3952-123-0x0000000002450000-0x0000000002488000-memory.dmp

Filesize
224KB

Download
memory/3952-122-0x0000000007080000-0x00000000070FE000-memory.dmp

Filesize
504KB

Download
memory/3952-121-0x00000000050E0000-0x00000000050E5000-memory.dmp

Filesize
20KB

Download
memory/3952-120-0x0000000006870000-0x0000000006871000-memory.dmp

Filesize
4KB

Download
memory/3952-114-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/3952-118-0x0000000002540000-0x0000000002541000-memory.dmp

Filesize
4KB

Download
memory/3952-117-0x0000000004A10000-0x0000000004A11000-memory.dmp

Filesize
4KB

Download
memory/3952-116-0x0000000005100000-0x0000000005101000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads