agenttesla | c940a9ec63e13e7edc31116dec6b87fb2a646921d8472f3477db398c15e82ed9

Analysis

max time kernel
120s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07/05/2024, 01:43

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General

Target

IMG_77020316.exe
Size

305KB
MD5

2c44da62f5bf398810c3a0588098e2c8
SHA1

b916038164d5cc19bf02da2fae9ec5ce33df5ca5
SHA256

224e23285395f06085656e63dbc4c1bbfb28433ed4d4a7a398ca9f8c7a77dd1e
SHA512

3451bd258dab8a11286df5fe3c3e965e85e32e110c00d2073f9327927a97c468b9fa00a1d8d13fdafd69cdeda1cede79cdfcf3f58636e6cc9b748f13d97a8f30
SSDEEP

1536:EUGtkijLv6JQJvtzAZiN4M1LG99rGsa8OXK34PNu0PB92EC3CNjm5Lh1c3h0b:aD2MZG9ZGsIK34PNX92ECSNKF13b

Score

10^/10

agenttesla zgrat keylogger persistence rat spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
66.29.151.236
Port:
587
Username:
[email protected]
Password:
AvydGQ8TIDH9
Email To:
[email protected]

Signatures

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

Detect ZGRat V1 34 IoCs

resource	yara_rule
behavioral1/memory/1556-3-0x0000000006220000-0x0000000006450000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-7-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-4-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-15-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-5-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-9-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-11-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-23-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-21-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-19-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-17-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-13-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-29-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-25-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-45-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-47-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-27-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-53-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-31-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-33-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-35-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-43-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-41-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-65-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-67-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-63-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-61-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-59-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-57-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-55-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-51-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-49-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-39-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1
behavioral1/memory/1556-37-0x0000000006220000-0x000000000644B000-memory.dmp	family_zgrat_v1

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat

Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs

resource	yara_rule
behavioral1/memory/3132-4901-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_EXE_Packed_GEN01

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs

resource	yara_rule
behavioral1/memory/3132-4901-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs

resource	yara_rule
behavioral1/memory/3132-4901-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral1/memory/3132-4901-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral1/memory/3132-4901-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs

resource	yara_rule
behavioral1/memory/3132-4901-0x0000000000400000-0x0000000000440000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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
T1552.001
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
T1552.001
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
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\kcsof = "C:\\Users\\Admin\\AppData\\Roaming\\kcsof.exe"	IMG_77020316.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
7	api.ipify.org
6	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1556 set thread context of 3132	1556	IMG_77020316.exe	29

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3132	IMG_77020316.exe
3132	IMG_77020316.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1556	IMG_77020316.exe
Token: SeDebugPrivilege	1556	IMG_77020316.exe
Token: SeDebugPrivilege	3132	IMG_77020316.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1556 wrote to memory of 3132	1556	IMG_77020316.exe	29
PID 1556 wrote to memory of 3132	1556	IMG_77020316.exe	29
PID 1556 wrote to memory of 3132	1556	IMG_77020316.exe	29
PID 1556 wrote to memory of 3132	1556	IMG_77020316.exe	29
PID 1556 wrote to memory of 3132	1556	IMG_77020316.exe	29
PID 1556 wrote to memory of 3132	1556	IMG_77020316.exe	29
PID 1556 wrote to memory of 3132	1556	IMG_77020316.exe	29
PID 1556 wrote to memory of 3132	1556	IMG_77020316.exe	29
PID 1556 wrote to memory of 3132	1556	IMG_77020316.exe	29

C:\Users\Admin\AppData\Local\Temp\IMG_77020316.exe
"C:\Users\Admin\AppData\Local\Temp\IMG_77020316.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1556
- C:\Users\Admin\AppData\Local\Temp\IMG_77020316.exe
  "C:\Users\Admin\AppData\Local\Temp\IMG_77020316.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3132

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1556-33-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-29-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-2-0x0000000073EE0000-0x00000000745CE000-memory.dmp

Filesize
6.9MB

Download
memory/1556-3-0x0000000006220000-0x0000000006450000-memory.dmp

Filesize
2.2MB

Download
memory/1556-7-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-4-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-15-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-5-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-9-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-11-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-23-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-21-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-19-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-17-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-13-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-35-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-25-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-45-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-47-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-27-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-53-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-31-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-1-0x0000000000E70000-0x0000000000EBE000-memory.dmp

Filesize
312KB

Download
memory/1556-0-0x0000000073EEE000-0x0000000073EEF000-memory.dmp

Filesize
4KB

Download
memory/1556-4886-0x00000000045A0000-0x00000000045EC000-memory.dmp

Filesize
304KB

Download
memory/1556-41-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-65-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-67-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-63-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-61-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-59-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-57-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-55-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-51-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-49-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-39-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-37-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-4884-0x0000000073EE0000-0x00000000745CE000-memory.dmp

Filesize
6.9MB

Download
memory/1556-43-0x0000000006220000-0x000000000644B000-memory.dmp

Filesize
2.2MB

Download
memory/1556-4885-0x0000000005710000-0x000000000577C000-memory.dmp

Filesize
432KB

Download
memory/1556-4887-0x0000000005510000-0x0000000005564000-memory.dmp

Filesize
336KB

Download
memory/1556-4904-0x0000000073EE0000-0x00000000745CE000-memory.dmp

Filesize
6.9MB

Download
memory/3132-4903-0x0000000073EE0000-0x00000000745CE000-memory.dmp

Filesize
6.9MB

Download
memory/3132-4902-0x0000000073EE0000-0x00000000745CE000-memory.dmp

Filesize
6.9MB

Download
memory/3132-4901-0x0000000000400000-0x0000000000440000-memory.dmp

Filesize
256KB

Download
memory/3132-4905-0x0000000073EE0000-0x00000000745CE000-memory.dmp

Filesize
6.9MB

Download