agenttesla | 6aba1deb82e5245cfd480adf8e20d672b19b6ec35219312c8821a7abc39e0634

General

Target

6aba1deb82e5245cfd480adf8e20d672b19b6ec35219312c8821a7abc39e0634.exe
Size

678KB
MD5

e7263f6a8a0c3ccc1622e608cbc05f1c
SHA1

33b4c67c98f3397f82da59ca95cddb3e31016b40
SHA256

6aba1deb82e5245cfd480adf8e20d672b19b6ec35219312c8821a7abc39e0634
SHA512

1da8574ae8c5c7879ccd1fd4ca7f326a4174fcaafee05d2f1a8731defcc57d6d1e5d603713dcd6ea7fc62d0eb46151bc6b806203c2f46b422928e72243a6be7e
SSDEEP

12288:asHzOUNUSB/o5LsI1uwajJ5yvv1l2j1rn2ICWjb/bvWN:NiUmSB/o5d1ubcvsFn2IV/bi

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan upx

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.antoniomayol.com:21
Port:
21
Username:
[email protected]
Password:
cMhKDQUk1{;%

Signatures

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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cerecloths.vbs	cerecloths.exe

Executes dropped EXE 1 IoCs

pid	Process
1644	cerecloths.exe

Looks up external IP address via web service 1 IoCs

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

flow	ioc
14	ip-api.com

AutoIT Executable 3 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/880-14-0x00000000004D0000-0x000000000064F000-memory.dmp	autoit_exe
behavioral2/memory/1644-22-0x00000000014B0000-0x00000000018B0000-memory.dmp	autoit_exe
behavioral2/memory/1644-26-0x0000000000850000-0x00000000009CF000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1644 set thread context of 5008	1644	cerecloths.exe	83

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/880-0-0x00000000004D0000-0x000000000064F000-memory.dmp	upx
behavioral2/files/0x000a000000023b7b-10.dat	upx
behavioral2/memory/1644-11-0x0000000000850000-0x00000000009CF000-memory.dmp	upx
behavioral2/memory/880-14-0x00000000004D0000-0x000000000064F000-memory.dmp	upx
behavioral2/memory/1644-26-0x0000000000850000-0x00000000009CF000-memory.dmp	upx

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	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6aba1deb82e5245cfd480adf8e20d672b19b6ec35219312c8821a7abc39e0634.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cerecloths.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5008	RegSvcs.exe
5008	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1644	cerecloths.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5008	RegSvcs.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 880 wrote to memory of 1644	880	6aba1deb82e5245cfd480adf8e20d672b19b6ec35219312c8821a7abc39e0634.exe	82
PID 880 wrote to memory of 1644	880	6aba1deb82e5245cfd480adf8e20d672b19b6ec35219312c8821a7abc39e0634.exe	82
PID 880 wrote to memory of 1644	880	6aba1deb82e5245cfd480adf8e20d672b19b6ec35219312c8821a7abc39e0634.exe	82
PID 1644 wrote to memory of 5008	1644	cerecloths.exe	83
PID 1644 wrote to memory of 5008	1644	cerecloths.exe	83
PID 1644 wrote to memory of 5008	1644	cerecloths.exe	83
PID 1644 wrote to memory of 5008	1644	cerecloths.exe	83

C:\Users\Admin\AppData\Local\Temp\6aba1deb82e5245cfd480adf8e20d672b19b6ec35219312c8821a7abc39e0634.exe
"C:\Users\Admin\AppData\Local\Temp\6aba1deb82e5245cfd480adf8e20d672b19b6ec35219312c8821a7abc39e0634.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:880
- C:\Users\Admin\AppData\Local\ectosphere\cerecloths.exe
  "C:\Users\Admin\AppData\Local\Temp\6aba1deb82e5245cfd480adf8e20d672b19b6ec35219312c8821a7abc39e0634.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1644
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\6aba1deb82e5245cfd480adf8e20d672b19b6ec35219312c8821a7abc39e0634.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:5008

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\ectosphere\cerecloths.exe

Filesize
678KB

MD5
e7263f6a8a0c3ccc1622e608cbc05f1c

SHA1
33b4c67c98f3397f82da59ca95cddb3e31016b40

SHA256
6aba1deb82e5245cfd480adf8e20d672b19b6ec35219312c8821a7abc39e0634

SHA512
1da8574ae8c5c7879ccd1fd4ca7f326a4174fcaafee05d2f1a8731defcc57d6d1e5d603713dcd6ea7fc62d0eb46151bc6b806203c2f46b422928e72243a6be7e

Download Submit
memory/880-7-0x0000000001630000-0x0000000001A30000-memory.dmp

Filesize
4.0MB

Download
memory/880-0-0x00000000004D0000-0x000000000064F000-memory.dmp

Filesize
1.5MB

Download
memory/880-14-0x00000000004D0000-0x000000000064F000-memory.dmp

Filesize
1.5MB

Download
memory/1644-26-0x0000000000850000-0x00000000009CF000-memory.dmp

Filesize
1.5MB

Download
memory/1644-22-0x00000000014B0000-0x00000000018B0000-memory.dmp

Filesize
4.0MB

Download
memory/1644-11-0x0000000000850000-0x00000000009CF000-memory.dmp

Filesize
1.5MB

Download
memory/5008-24-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/5008-27-0x000000007437E000-0x000000007437F000-memory.dmp

Filesize
4KB

Download
memory/5008-28-0x0000000005C10000-0x00000000061B4000-memory.dmp

Filesize
5.6MB

Download
memory/5008-29-0x00000000057D0000-0x0000000005836000-memory.dmp

Filesize
408KB

Download
memory/5008-30-0x0000000074370000-0x0000000074B20000-memory.dmp

Filesize
7.7MB

Download
memory/5008-31-0x0000000006A80000-0x0000000006AD0000-memory.dmp

Filesize
320KB

Download
memory/5008-32-0x0000000006B70000-0x0000000006C02000-memory.dmp

Filesize
584KB

Download
memory/5008-33-0x0000000006B00000-0x0000000006B0A000-memory.dmp

Filesize
40KB

Download
memory/5008-34-0x000000007437E000-0x000000007437F000-memory.dmp

Filesize
4KB

Download
memory/5008-35-0x0000000074370000-0x0000000074B20000-memory.dmp

Filesize
7.7MB

Download

Analysis

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