agenttesla | 37618200ca15f760f9eb09fcaa6a6e9f9591ea49c69d3db0a5e47af01913bb3c

Analysis

max time kernel
131s
max time network
118s
platform
windows10_x64
resource
win10v20210408
submitted
09/08/2021, 05:59

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General

Target
4776da05c78ba1b356b957c481de3df9.exe
Size 837KB
Sample210809-xlt2l7lp7n
SHA256 37618200ca15f760f9eb09fcaa6a6e9f9591ea49c69d3db0a5e47af01913bb3c
MD5 4776da05c78ba1b356b957c481de3df9
SHA1 16b6634b431682895f07c4ff1d912ef844712aa9
SHA512 e8f406488554317dec310d2554df0f0da57b192aaff86c1467bd8cdda37721cdc22eb3f7adf5d88fabd8fa1bd15a96c8706558410cb0e8c7cc60c96d404579c5
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.privateemail.com
Port
587
Username
[email protected]
Password
@Mexico1.,

Signatures

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

AgentTesla Payload 3 IoCs

resource	yara_rule
behavioral2/memory/2140-127-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/2140-128-0x000000000043776E-mapping.dmp	family_agenttesla
behavioral2/memory/2140-134-0x00000000051B0000-0x00000000056AE000-memory.dmp	family_agenttesla

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\newapp = "C:\\Users\\Admin\\AppData\\Roaming\\newapp\\newapp.exe"	4776da05c78ba1b356b957c481de3df9.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 996 set thread context of 2140	996	4776da05c78ba1b356b957c481de3df9.exe	80

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

pid	Process
3520	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
996	4776da05c78ba1b356b957c481de3df9.exe
2140	4776da05c78ba1b356b957c481de3df9.exe
2140	4776da05c78ba1b356b957c481de3df9.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2140	4776da05c78ba1b356b957c481de3df9.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	996	4776da05c78ba1b356b957c481de3df9.exe
Token: SeDebugPrivilege	2140	4776da05c78ba1b356b957c481de3df9.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 996 wrote to memory of 3520	996	4776da05c78ba1b356b957c481de3df9.exe	78
PID 996 wrote to memory of 3520	996	4776da05c78ba1b356b957c481de3df9.exe	78
PID 996 wrote to memory of 3520	996	4776da05c78ba1b356b957c481de3df9.exe	78
PID 996 wrote to memory of 2140	996	4776da05c78ba1b356b957c481de3df9.exe	80
PID 996 wrote to memory of 2140	996	4776da05c78ba1b356b957c481de3df9.exe	80
PID 996 wrote to memory of 2140	996	4776da05c78ba1b356b957c481de3df9.exe	80
PID 996 wrote to memory of 2140	996	4776da05c78ba1b356b957c481de3df9.exe	80
PID 996 wrote to memory of 2140	996	4776da05c78ba1b356b957c481de3df9.exe	80
PID 996 wrote to memory of 2140	996	4776da05c78ba1b356b957c481de3df9.exe	80
PID 996 wrote to memory of 2140	996	4776da05c78ba1b356b957c481de3df9.exe	80
PID 996 wrote to memory of 2140	996	4776da05c78ba1b356b957c481de3df9.exe	80

C:\Users\Admin\AppData\Local\Temp\4776da05c78ba1b356b957c481de3df9.exe
"C:\Users\Admin\AppData\Local\Temp\4776da05c78ba1b356b957c481de3df9.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:996
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DRpJmAGWaoTTwy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC4E7.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3520
- C:\Users\Admin\AppData\Local\Temp\4776da05c78ba1b356b957c481de3df9.exe
  "C:\Users\Admin\AppData\Local\Temp\4776da05c78ba1b356b957c481de3df9.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  PID:2140

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/996-123-0x0000000007E50000-0x0000000007EE9000-memory.dmp

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memory/996-124-0x000000000A540000-0x000000000A578000-memory.dmp

Download

memory/996-119-0x0000000003020000-0x0000000003021000-memory.dmp

Download

memory/996-120-0x0000000003010000-0x0000000003011000-memory.dmp

Download

memory/996-121-0x0000000005670000-0x0000000005683000-memory.dmp

Download

memory/996-122-0x0000000007960000-0x0000000007961000-memory.dmp

Download

memory/996-114-0x0000000000C00000-0x0000000000C01000-memory.dmp

Download

memory/996-118-0x00000000056D0000-0x00000000056D1000-memory.dmp

Download

memory/996-116-0x0000000005BD0000-0x0000000005BD1000-memory.dmp

Download

memory/996-117-0x00000000055D0000-0x00000000055D1000-memory.dmp

Download

memory/2140-127-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/2140-134-0x00000000051B0000-0x00000000056AE000-memory.dmp

Download

memory/2140-135-0x0000000005690000-0x0000000005691000-memory.dmp

Download

memory/2140-136-0x0000000005D10000-0x0000000005D11000-memory.dmp

Download