agenttesla | cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43

General

Target
cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe
Size 773KB
Sample220414-pwcpvsghcm
SHA256 cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43
MD5 ed6e71c980078e893bf821379d994f4c
SHA1 ff2e02bac29ce96002992cd3e03a824ec41c9cf4
SHA512 30262e84a91c7b90b5a4a048182b7068a3d7978bbd2dfa9a2b8dd3d29d334fe6d6002dc6dea7818ef4b614586685b9f98e715372f2a8453371e83d0e549c14a8
MD5 SHA1 SHA512

Score

10^/10

agenttesla metastealer evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.jnk-vn.com
Port
587
Username
[email protected]
Password
AqA8ZPkER3XA
Email to
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Meta Stealer Stealer
Meta Stealer steals passwords stored in browsers, written in C++.
stealer metastealer

AgentTesla Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3620-134-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-157025953-3125636059-437143553-1000\Control Panel\International\Geo\Nation	cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4212 set thread context of 3620	4212	cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe	94

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
1464	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4212	cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe
3620	cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe
3620	cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4212	cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe
Token: SeDebugPrivilege	3620	cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4212 wrote to memory of 1464	4212	cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe	92
PID 4212 wrote to memory of 1464	4212	cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe	92
PID 4212 wrote to memory of 1464	4212	cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe	92
PID 4212 wrote to memory of 3620	4212	cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe	94
PID 4212 wrote to memory of 3620	4212	cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe	94
PID 4212 wrote to memory of 3620	4212	cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe	94
PID 4212 wrote to memory of 3620	4212	cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe	94
PID 4212 wrote to memory of 3620	4212	cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe	94
PID 4212 wrote to memory of 3620	4212	cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe	94
PID 4212 wrote to memory of 3620	4212	cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe	94
PID 4212 wrote to memory of 3620	4212	cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe	94

C:\Users\Admin\AppData\Local\Temp\cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe
"C:\Users\Admin\AppData\Local\Temp\cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe"
1⤵
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4212
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OvYiSkgLeYLup" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE9A4.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1464
- C:\Users\Admin\AppData\Local\Temp\cfcb82dca4f5a92e73fb77de00cd8da789af7730f589712441b6faf790babe43.exe
  "{path}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3620

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

4

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tmpE9A4.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpE9A4.tmp
Size 1KB
SHA256 b2ef49c22d6396cafecf690255579d827c7236cdb150c6b7b7d243df246c9ddc
MD5 d823298adad872c45d068d6f3ee12400
SHA1 cad3562dd4589a2a1bad7e1918c005f75aac615a
SHA512 c1226186b64f017fee207a40d2c90fec583f012e2797eb9f1d5e92d24535207ee09aa2ae10144c325c45dd39f92b7ece760f3eb007b014468bc8f05487d6eed0
MD5 SHA1 SHA512

Submit Download

memory/3620-134-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/4212-124-0x00000000009B0000-0x0000000000A78000-memory.dmp

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memory/4212-125-0x0000000009EC0000-0x000000000A464000-memory.dmp

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memory/4212-126-0x0000000005760000-0x00000000057F2000-memory.dmp

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memory/4212-127-0x00000000054D0000-0x00000000054DA000-memory.dmp

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memory/4212-128-0x0000000008E40000-0x000000000936C000-memory.dmp

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memory/4212-129-0x00000000014D0000-0x000000000156C000-memory.dmp

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memory/4212-130-0x0000000007980000-0x00000000079E6000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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