agenttesla | 2214bdc78b558176a17484bcc02079a5470e0b49073d50d19b522d67dc4396e3

Analysis

max time kernel
109s
max time network
35s
platform
windows7_x64
resource
win7v20210408
submitted
30-07-2021 15:26

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General

Target

4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe
Size

941KB
MD5

59e2fd2ce7f30f5e5bd8300cd86dab47
SHA1

bbc0545dcfb7e5f2fda1e46f82054b9e4ef2f599
SHA256

4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65
SHA512

ab93fcb95cd0727d19235e50da9bebd7cf83caebe06d74b77d6daa7ede83d82c16bb5756f8c50dbd52b8b8d80a89c346f5d1858eaf5adce6103e0ad10c83a880

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.gilanis.co.ke
Port:
587
Username:
[email protected]
Password:
Mullardodo@#

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
behavioral10/memory/1028-68-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral10/memory/1028-69-0x000000000043763E-mapping.dmp	family_agenttesla
behavioral10/memory/1028-70-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\kprUEGC = "C:\\Users\\Admin\\AppData\\Roaming\\kprUEGC\\kprUEGC.exe"	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe

description	pid	process	target process
PID 1844 set thread context of 1028	1844	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.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

664 schtasks.exe

pid	process
664	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe

pid	process
1844	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe
1028	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe
1028	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe

description	pid	process
Token: SeDebugPrivilege	1844	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe
Token: SeDebugPrivilege	1028	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe

description	pid	process	target process
PID 1844 wrote to memory of 664	1844	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe	schtasks.exe
PID 1844 wrote to memory of 664	1844	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe	schtasks.exe
PID 1844 wrote to memory of 664	1844	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe	schtasks.exe
PID 1844 wrote to memory of 664	1844	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe	schtasks.exe
PID 1844 wrote to memory of 1028	1844	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe
PID 1844 wrote to memory of 1028	1844	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe
PID 1844 wrote to memory of 1028	1844	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe
PID 1844 wrote to memory of 1028	1844	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe
PID 1844 wrote to memory of 1028	1844	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe
PID 1844 wrote to memory of 1028	1844	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe
PID 1844 wrote to memory of 1028	1844	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe
PID 1844 wrote to memory of 1028	1844	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe
PID 1844 wrote to memory of 1028	1844	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe	4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe

C:\Users\Admin\AppData\Local\Temp\4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe
"C:\Users\Admin\AppData\Local\Temp\4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1844

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qqUYUQOSj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5199.tmp"
2⤵
- Creates scheduled task(s)
PID:664

C:\Users\Admin\AppData\Local\Temp\4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe
"C:\Users\Admin\AppData\Local\Temp\4072fc745ae1b976bfff8fdfdebdac6db5e33bb4f63507b4d56ab67b98c6db65.exe"
2⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1028

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5199.tmp
MD5
31c2f502d8b37cb5681c558270502714

SHA1
81d4b7f27d75e97ff52d8f1b0a6049970cf519a9

SHA256
2f5ae3230accaca945c141a0599ed32b4fe97231356f4ab2d344c49822fd06d5

SHA512
d4d9d11f4080e7bf3868eafb7562e3b1364672683297aed0ca6e94114471248b49942c79608591a16f83d94bcada03426fb8066fd9215884897714ec9f14d6f5

Download Submit
memory/664-66-0x0000000000000000-mapping.dmp

Download
memory/1028-68-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1028-69-0x000000000043763E-mapping.dmp

Download
memory/1028-70-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1028-72-0x00000000005F0000-0x00000000005F1000-memory.dmp

Filesize
4KB

Download
memory/1844-60-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/1844-62-0x0000000000580000-0x0000000000581000-memory.dmp

Filesize
4KB

Download
memory/1844-63-0x0000000000530000-0x000000000054B000-memory.dmp

Filesize
108KB

Download
memory/1844-64-0x0000000005080000-0x0000000005100000-memory.dmp

Filesize
512KB

Download
memory/1844-65-0x0000000000770000-0x00000000007AC000-memory.dmp

Filesize
240KB

Download