agenttesla | 1ec3c886cd082c50a8f309de7277c015d49233865dc746a60cbc671df523367d

General

Target

Invoice_document06242021.exe
Size

1.2MB
MD5

22038021ba9ff2f1b233ce4f4a1ab217
SHA1

a22086e8da15b3dd87e83573fc89da4dbd4d1fcd
SHA256

1ec3c886cd082c50a8f309de7277c015d49233865dc746a60cbc671df523367d
SHA512

aa93db72a9a896069ccb4295069b912f421264858cb42bbc58999be70999dc5283dbf4b69cbebd32d0426c76ac7be5a5a0c49c8095d031e4e85e542d73bd915f

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.vivaldi.net
Port:
587
Username:
elshcap@vivaldi.net
Password:
uiU2mz9aspuHUM3

Signatures

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

AgentTesla Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1540-127-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/1540-128-0x00000000004375CE-mapping.dmp	family_agenttesla

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Invoice_document06242021.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\filename.exe = "C:\\Users\\Admin\\AppData\\Roaming\\filename.exe\\filename.exe.exe"	Invoice_document06242021.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Invoice_document06242021.exe

description pid process target process

PID 992 set thread context of 1540 992 Invoice_document06242021.exe Invoice_document06242021.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

504 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Invoice_document06242021.exe

pid process

1540 Invoice_document06242021.exe
1540 Invoice_document06242021.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Invoice_document06242021.exeInvoice_document06242021.exe

description pid process

Token: SeDebugPrivilege 992 Invoice_document06242021.exe
Token: SeDebugPrivilege 1540 Invoice_document06242021.exe

description	pid	process	target process
PID 992 set thread context of 1540	992	Invoice_document06242021.exe	Invoice_document06242021.exe

pid	process
504	schtasks.exe

pid	process
1540	Invoice_document06242021.exe
1540	Invoice_document06242021.exe

description	pid	process
Token: SeDebugPrivilege	992	Invoice_document06242021.exe
Token: SeDebugPrivilege	1540	Invoice_document06242021.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

Invoice_document06242021.exe

description	pid	process	target process
PID 992 wrote to memory of 504	992	Invoice_document06242021.exe	schtasks.exe
PID 992 wrote to memory of 504	992	Invoice_document06242021.exe	schtasks.exe
PID 992 wrote to memory of 504	992	Invoice_document06242021.exe	schtasks.exe
PID 992 wrote to memory of 1540	992	Invoice_document06242021.exe	Invoice_document06242021.exe
PID 992 wrote to memory of 1540	992	Invoice_document06242021.exe	Invoice_document06242021.exe
PID 992 wrote to memory of 1540	992	Invoice_document06242021.exe	Invoice_document06242021.exe
PID 992 wrote to memory of 1540	992	Invoice_document06242021.exe	Invoice_document06242021.exe
PID 992 wrote to memory of 1540	992	Invoice_document06242021.exe	Invoice_document06242021.exe
PID 992 wrote to memory of 1540	992	Invoice_document06242021.exe	Invoice_document06242021.exe
PID 992 wrote to memory of 1540	992	Invoice_document06242021.exe	Invoice_document06242021.exe
PID 992 wrote to memory of 1540	992	Invoice_document06242021.exe	Invoice_document06242021.exe

C:\Users\Admin\AppData\Local\Temp\Invoice_document06242021.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice_document06242021.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:992

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xESkNZNT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6F93.tmp"
2⤵
- Creates scheduled task(s)
PID:504

C:\Users\Admin\AppData\Local\Temp\Invoice_document06242021.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice_document06242021.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1540

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

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Invoice_document06242021.exe.log
MD5
90acfd72f14a512712b1a7380c0faf60

SHA1
40ba4accb8faa75887e84fb8e38d598dc8cf0f12

SHA256
20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

SHA512
29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6F93.tmp
MD5
a347f332d44b9e70502c155b46b5406a

SHA1
6abe5defdf5561164df505172eac70ac755cdc73

SHA256
dfca8e281e404e9ae4c9eea5c640bdc78f5938271130e1744406db3a7bf72955

SHA512
2bed62a84fc6a99dd05758f2a2e323c605d73206aeb2471db1c559927d35cba8d3c2b5f1ce66d51b4802d6007362dfd643f4f8f5899fb127527723491039c66d

Download Submit
memory/504-125-0x0000000000000000-mapping.dmp

Download
memory/992-123-0x0000000006580000-0x00000000065FB000-memory.dmp

Filesize
492KB

Download
memory/992-118-0x00000000057C0000-0x00000000057C1000-memory.dmp

Filesize
4KB

Download
memory/992-120-0x0000000005690000-0x0000000005691000-memory.dmp

Filesize
4KB

Download
memory/992-121-0x00000000059A0000-0x00000000059A1000-memory.dmp

Filesize
4KB

Download
memory/992-122-0x0000000005990000-0x00000000059A0000-memory.dmp

Filesize
64KB

Download
memory/992-114-0x0000000000D60000-0x0000000000D61000-memory.dmp

Filesize
4KB

Download
memory/992-124-0x0000000008B00000-0x0000000008B4C000-memory.dmp

Filesize
304KB

Download
memory/992-119-0x00000000057C0000-0x0000000005CBE000-memory.dmp

Filesize
5.0MB

Download
memory/992-117-0x0000000005CC0000-0x0000000005CC1000-memory.dmp

Filesize
4KB

Download
memory/992-116-0x00000000056E0000-0x00000000056E1000-memory.dmp

Filesize
4KB

Download
memory/1540-128-0x00000000004375CE-mapping.dmp

Download
memory/1540-127-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1540-134-0x0000000003280000-0x0000000003281000-memory.dmp

Filesize
4KB

Download
memory/1540-135-0x0000000005790000-0x0000000005791000-memory.dmp

Filesize
4KB

Download
memory/1540-136-0x00000000062C0000-0x00000000062C1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads