agenttesla | 410ef6d906ba484fc887ccde242ff8f0057fe55c338a7e4dc9d7be4ed94c7f9a

General

Target

1349f4cdeeff77f8e18cddb241f3e425.exe
Size

878KB
MD5

1349f4cdeeff77f8e18cddb241f3e425
SHA1

f631ca6cb8897a6d052f09df9c278f16088aa25e
SHA256

410ef6d906ba484fc887ccde242ff8f0057fe55c338a7e4dc9d7be4ed94c7f9a
SHA512

3ed9368e40be9803b0f9590d1f67e4dddad886a3551e52915a042a36fa7813d5556e78034d9a6297c9aefef3da5203bc9fb1bb013dd57e09a121f66dc77b82cd
SSDEEP

24576:P7EcmNaAnMM0Xc4H0KZCbhDjoJfMpxXM+u7vR/k4k:wRBfAdZCbtjogxFgRE

Score

10^/10

agenttesla guloader downloader keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6225333215:AAFu6RyUqp4Klj6s7zuEWrA78AFP6bYaof8/

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader
Loads dropped DLL 1 IoCs

Processes:

1349f4cdeeff77f8e18cddb241f3e425.exe

pid process

3864 1349f4cdeeff77f8e18cddb241f3e425.exe

pid	process
3864	1349f4cdeeff77f8e18cddb241f3e425.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

msbuild.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3455265224-196869244-2056873367-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TulzXve = "C:\\Users\\Admin\\AppData\\Roaming\\TulzXve\\TulzXve.exe"	msbuild.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.

Processes:

flow ioc

74 api.ipify.org
75 api.ipify.org
Drops file in System32 directory 1 IoCs

Processes:

1349f4cdeeff77f8e18cddb241f3e425.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\octocoralline\udflet.kly 1349f4cdeeff77f8e18cddb241f3e425.exe
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

Processes:

msbuild.exe

pid process

1440 msbuild.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

1349f4cdeeff77f8e18cddb241f3e425.exemsbuild.exe

pid process

3864 1349f4cdeeff77f8e18cddb241f3e425.exe
1440 msbuild.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

1349f4cdeeff77f8e18cddb241f3e425.exe

description pid process target process

PID 3864 set thread context of 1440 3864 1349f4cdeeff77f8e18cddb241f3e425.exe msbuild.exe
Drops file in Program Files directory 1 IoCs

Processes:

1349f4cdeeff77f8e18cddb241f3e425.exe

description ioc process

File created C:\Program Files (x86)\Alkoholpaavirkede.lnk 1349f4cdeeff77f8e18cddb241f3e425.exe

flow	ioc
74	api.ipify.org
75	api.ipify.org

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\octocoralline\udflet.kly	1349f4cdeeff77f8e18cddb241f3e425.exe

pid	process
1440	msbuild.exe

pid	process
3864	1349f4cdeeff77f8e18cddb241f3e425.exe
1440	msbuild.exe

description	pid	process	target process
PID 3864 set thread context of 1440	3864	1349f4cdeeff77f8e18cddb241f3e425.exe	msbuild.exe

description	ioc	process
File created	C:\Program Files (x86)\Alkoholpaavirkede.lnk	1349f4cdeeff77f8e18cddb241f3e425.exe

Drops file in Windows directory 2 IoCs

Processes:

1349f4cdeeff77f8e18cddb241f3e425.exe

description	ioc	process
File opened for modification	C:\Windows\pau.anl	1349f4cdeeff77f8e18cddb241f3e425.exe
File opened for modification	C:\Windows\Fonts\sttemaskinerne.aft	1349f4cdeeff77f8e18cddb241f3e425.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

5012 1440 WerFault.exe msbuild.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

msbuild.exe

pid process

1440 msbuild.exe
1440 msbuild.exe
1440 msbuild.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

1349f4cdeeff77f8e18cddb241f3e425.exe

pid process

3864 1349f4cdeeff77f8e18cddb241f3e425.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

msbuild.exe

description pid process

Token: SeDebugPrivilege 1440 msbuild.exe

pid	pid_target	process	target process
5012	1440	WerFault.exe	msbuild.exe

pid	process
1440	msbuild.exe
1440	msbuild.exe
1440	msbuild.exe

pid	process
3864	1349f4cdeeff77f8e18cddb241f3e425.exe

description	pid	process
Token: SeDebugPrivilege	1440	msbuild.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

1349f4cdeeff77f8e18cddb241f3e425.exe

description	pid	process	target process
PID 3864 wrote to memory of 1440	3864	1349f4cdeeff77f8e18cddb241f3e425.exe	msbuild.exe
PID 3864 wrote to memory of 1440	3864	1349f4cdeeff77f8e18cddb241f3e425.exe	msbuild.exe
PID 3864 wrote to memory of 1440	3864	1349f4cdeeff77f8e18cddb241f3e425.exe	msbuild.exe
PID 3864 wrote to memory of 1440	3864	1349f4cdeeff77f8e18cddb241f3e425.exe	msbuild.exe
PID 3864 wrote to memory of 1440	3864	1349f4cdeeff77f8e18cddb241f3e425.exe	msbuild.exe

C:\Users\Admin\AppData\Local\Temp\1349f4cdeeff77f8e18cddb241f3e425.exe
"C:\Users\Admin\AppData\Local\Temp\1349f4cdeeff77f8e18cddb241f3e425.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3864

C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
"C:\Users\Admin\AppData\Local\Temp\1349f4cdeeff77f8e18cddb241f3e425.exe"
2⤵
- Adds Run key to start application
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1440 -s 2584
3⤵
- Program crash
PID:5012

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 1440 -ip 1440
1⤵
PID:3408

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\nst8261.tmp\System.dll

Filesize
12KB

MD5
0d7ad4f45dc6f5aa87f606d0331c6901

SHA1
48df0911f0484cbe2a8cdd5362140b63c41ee457

SHA256
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

SHA512
c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

Download Submit
C:\Users\Admin\regdir.ini

Filesize
23B

MD5
c92bd40da0253a8950d8212a10a45b7a

SHA1
51b8c9ec204739dc6533aedb479e2246dc6c814e

SHA256
66254a3eeb63222b02602732fac5e85f080d77c5e257e138864931763fb955fb

SHA512
26cc58e0e7aceea7e1f3083fa8ca7e231ca71616006d34a5b73de93f1edbcb2904ab246f0ae241f2fcd51c93f467757081c381c57e1de8c77a2a8695ec4ac4e1

Download Submit
memory/1440-61-0x0000000072130000-0x00000000728E0000-memory.dmp

Filesize
7.7MB

Download
memory/1440-59-0x00000000737F0000-0x0000000073834000-memory.dmp

Filesize
272KB

Download
memory/1440-69-0x0000000077BF1000-0x0000000077D11000-memory.dmp

Filesize
1.1MB

Download
memory/1440-46-0x0000000000F40000-0x0000000003613000-memory.dmp

Filesize
38.8MB

Download
memory/1440-68-0x0000000072130000-0x00000000728E0000-memory.dmp

Filesize
7.7MB

Download
memory/1440-48-0x0000000077C78000-0x0000000077C79000-memory.dmp

Filesize
4KB

Download
memory/1440-49-0x0000000077C95000-0x0000000077C96000-memory.dmp

Filesize
4KB

Download
memory/1440-56-0x00000000737F0000-0x0000000074A44000-memory.dmp

Filesize
18.3MB

Download
memory/1440-57-0x0000000000F40000-0x0000000003613000-memory.dmp

Filesize
38.8MB

Download
memory/1440-64-0x0000000000F40000-0x0000000003613000-memory.dmp

Filesize
38.8MB

Download
memory/1440-63-0x0000000036040000-0x00000000360A6000-memory.dmp

Filesize
408KB

Download
memory/1440-60-0x0000000036320000-0x00000000368C4000-memory.dmp

Filesize
5.6MB

Download
memory/1440-62-0x0000000035F30000-0x0000000035F40000-memory.dmp

Filesize
64KB

Download
memory/3864-43-0x0000000004240000-0x0000000006913000-memory.dmp

Filesize
38.8MB

Download
memory/3864-44-0x0000000077BF1000-0x0000000077D11000-memory.dmp

Filesize
1.1MB

Download
memory/3864-47-0x0000000074A50000-0x0000000074A57000-memory.dmp

Filesize
28KB

Download
memory/3864-45-0x0000000004240000-0x0000000006913000-memory.dmp

Filesize
38.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads