agenttesla | 6dff95543349b52e92d24de0cec7a689dcc3e298dbcda9f92c9386af99351b1b

General

Target

Doc_LOI.vbe
Size

8KB
MD5

608aa4b6781b5333f940f9d0a933313f
SHA1

72282fe231e6e43d0785188e5e8509ff9bd59b8c
SHA256

13d3a1cdba937a0d1dcf706e85b320da66b2cc1ec1193839319511688847abbc
SHA512

3dbf0e3538070a372adb492b771e8360b02f4f3c0cf09092493d0c9bf487eefb26a8ee3a468047f3f36b284f34325e21f6c77b7352ca9e38a20b53c092f2684c
SSDEEP

192:3eS9aNfePvTsC7kYna9INmRo4OCk01bB3K:tsmj7k4aaYRtOCLBa

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
162.254.34.31
Port:
587
Username:
[email protected]
Password:
M992uew1mw6Z
Email To:
[email protected]

Signatures

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
1	1692	WScript.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	WScript.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
55	api.ipify.org
56	api.ipify.org

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\%AppData%\Microsoft\Windows\Start Menu\Programs\Windows PowerShell\Windows PowerShell.lnk	powershell.exe
File opened for modification	C:\Windows\System32\%AppData%\Microsoft\Windows\Start Menu\Programs\Windows PowerShell\Windows PowerShell.lnk	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4952 set thread context of 3532	4952	powershell.exe	102

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 1 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	MSBuild.exe

Checks processor information in registry 2 TTPs 9 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	wermgr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	wermgr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	wermgr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	wermgr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	wermgr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	wermgr.exe

Enumerates system info in registry 2 TTPs 7 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	wermgr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	wermgr.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	wermgr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	wermgr.exe

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	1	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
1460	WINWORD.EXE
1460	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4952	powershell.exe
4952	powershell.exe
4552	powershell.exe
4552	powershell.exe
4552	powershell.exe
4952	powershell.exe
4952	powershell.exe
3532	MSBuild.exe
3532	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4952	powershell.exe
Token: SeDebugPrivilege	4552	powershell.exe
Token: SeDebugPrivilege	3532	MSBuild.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
1460	WINWORD.EXE
1460	WINWORD.EXE
1460	WINWORD.EXE
1460	WINWORD.EXE
1460	WINWORD.EXE
1460	WINWORD.EXE
1460	WINWORD.EXE
1460	WINWORD.EXE
1460	WINWORD.EXE
1460	WINWORD.EXE
1460	WINWORD.EXE
1460	WINWORD.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1148 wrote to memory of 4952	1148	WScript.exe	92
PID 1148 wrote to memory of 4952	1148	WScript.exe	92
PID 1148 wrote to memory of 4552	1148	WScript.exe	100
PID 1148 wrote to memory of 4552	1148	WScript.exe	100
PID 4952 wrote to memory of 3532	4952	powershell.exe	102
PID 4952 wrote to memory of 3532	4952	powershell.exe	102
PID 4952 wrote to memory of 3532	4952	powershell.exe	102
PID 4952 wrote to memory of 3532	4952	powershell.exe	102
PID 4952 wrote to memory of 3532	4952	powershell.exe	102
PID 4952 wrote to memory of 3532	4952	powershell.exe	102
PID 4952 wrote to memory of 3532	4952	powershell.exe	102
PID 4952 wrote to memory of 3532	4952	powershell.exe	102
PID 4552 wrote to memory of 1956	4552	powershell.exe	103
PID 4552 wrote to memory of 1956	4552	powershell.exe	103
PID 4952 wrote to memory of 724	4952	powershell.exe	104
PID 4952 wrote to memory of 724	4952	powershell.exe	104

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Doc_LOI.vbe"
1⤵
- Blocklisted process makes network request
PID:1692

C:\Windows\System32\WScript.exe
C:\Windows\System32\WScript.exe "C:\Users\Admin\AppData\Roaming\MGarnpObOtlJFvM.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1148
- C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe"
  2⤵
  - Drops file in System32 directory
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4952
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3532
- - C:\Windows\system32\wermgr.exe
    "C:\Windows\system32\wermgr.exe" "-outproc" "0" "4952" "2712" "2656" "2716" "0" "0" "2720" "0" "0" "0" "0" "0"
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    PID:724
- C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe"
  2⤵
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4552
- - C:\Windows\system32\wermgr.exe
    "C:\Windows\system32\wermgr.exe" "-outproc" "0" "4552" "2684" "2616" "2688" "0" "0" "2692" "0" "0" "0" "0" "0"
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    PID:1956

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\Desktop\StartConfirm.rtf" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1460

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

4

T1012

System Information Discovery

4

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
3KB

MD5
9461a7cfb20ff5381df28f51b80c5ef1

SHA1
c86c53fca1dcbe307dafbefbb366abf52c9f5eca

SHA256
d4af1948337d0deb725f4f2b1fe1a9b60f4519841e28748b11bfd62ccd71e028

SHA512
da1e17f67dfebb004ba93d489be504fd7af6d62709ada2581ffa77880baecdaa0015b49d36333d18216d9dc6aad7b0ea2e5bd224d8d3f65ee9b66a05fc45e304

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache

Filesize
53KB

MD5
a26df49623eff12a70a93f649776dab7

SHA1
efb53bd0df3ac34bd119adf8788127ad57e53803

SHA256
4ebde1c12625cb55034d47e5169f709b0bd02a8caa76b5b9854efad7f4710245

SHA512
e5f9b8645fb2a50763fcbffe877ca03e9cadf099fe2d510b74bfa9ff18d0a6563d11160e00f495eeefebde63450d0ade8d6b6a824e68bd8a59e1971dc842709c

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_eg4iiynd.s53.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\MGarnpObOtlJFvM.vbs

Filesize
2KB

MD5
6892edb9f965b62befb2ef9a8b583b55

SHA1
fa825f6f1639d4f7a58e4b6a0e3d3b016a5194cf

SHA256
0dae80f252e22ede7270ecb5ee2142b9d711479595c71279201738b539d934c6

SHA512
e6ef2854016748f997e7a251f2a9e6cbe71906dd4f30bd72bc3478d08771a9261afd7a7ed1b52968135ea657f9c6886d0cb9b6e36a382db4f800fccebf09ecbd

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\PowerShell\PSReadLine\ConsoleHost_history.txt

Filesize
217B

MD5
5a7e8848e1b4aa141369105680d97409

SHA1
f99ae1ce8fd1d07e3514c7764dc7ca292ec6106a

SHA256
980dfb2b6ac90b8847bb81a32d64fe17ce52a4408e8043b45fbc9df4796b8674

SHA512
dbe083cd2f5816351df494da801ea22c474f81541dc4ee1beae721c3bec9173ff48cf6a16087ad321e900831129b12c4156d25c1b0da85a2be6d07d7631b2b3b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
6KB

MD5
9b409c88a447655cc97fb3f5416d145a

SHA1
c1315ab02375c58b17eb7e14b98d57d4ee393096

SHA256
48629558ee1f3e0efa671a3cb5b8480cf2b5fc028a82ddf8e06bcf1ea171c428

SHA512
487ceb831c9b3c8e9e4de65a8bdd8dcc465032b3682cb82244001eb68b23888ea7d35c342caa74872fe64bd5c87aa0b5cb07dc2a3cbad677b0109e1c368fab7a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
6KB

MD5
24ff23d02d3229b8660a2ca2d209ba71

SHA1
d417849fca3688257538f7feb1b6cc577a8bc213

SHA256
e6712726190d84b1520c132e96a726e9e8a3f59e5992209f4412f0540c54c46a

SHA512
9165762fac42e914e7046594d23a66d86122e217cf707de73c379a73c1ff6fb37e5ac0ed569e7003cc219dfdfc9ed0910cbc94ccabec143faefadb88158f70c2

Download Submit
memory/1460-19-0x00007FFA5A330000-0x00007FFA5A340000-memory.dmp

Filesize
64KB

Download
memory/1460-18-0x00007FFA5A330000-0x00007FFA5A340000-memory.dmp

Filesize
64KB

Download
memory/1460-16-0x00007FFA5A330000-0x00007FFA5A340000-memory.dmp

Filesize
64KB

Download
memory/1460-21-0x00007FFA57C30000-0x00007FFA57C40000-memory.dmp

Filesize
64KB

Download
memory/1460-22-0x00007FFA57C30000-0x00007FFA57C40000-memory.dmp

Filesize
64KB

Download
memory/1460-17-0x00007FFA5A330000-0x00007FFA5A340000-memory.dmp

Filesize
64KB

Download
memory/1460-20-0x00007FFA5A330000-0x00007FFA5A340000-memory.dmp

Filesize
64KB

Download
memory/3532-75-0x0000000005EA0000-0x0000000006444000-memory.dmp

Filesize
5.6MB

Download
memory/3532-58-0x0000000001390000-0x00000000013D0000-memory.dmp

Filesize
256KB

Download
memory/3532-76-0x0000000005A40000-0x0000000005AA6000-memory.dmp

Filesize
408KB

Download
memory/3532-77-0x0000000006E10000-0x0000000006E60000-memory.dmp

Filesize
320KB

Download
memory/3532-78-0x0000000006F00000-0x0000000006F92000-memory.dmp

Filesize
584KB

Download
memory/3532-79-0x0000000006E80000-0x0000000006E8A000-memory.dmp

Filesize
40KB

Download
memory/4952-14-0x0000014FF1DF0000-0x0000014FF1E34000-memory.dmp

Filesize
272KB

Download
memory/4952-56-0x0000014FF1A20000-0x0000014FF1A28000-memory.dmp

Filesize
32KB

Download
memory/4952-57-0x0000014FF1DC0000-0x0000014FF1DCA000-memory.dmp

Filesize
40KB

Download
memory/4952-13-0x0000014FF1A30000-0x0000014FF1A52000-memory.dmp

Filesize
136KB

Download
memory/4952-15-0x0000014FF1EC0000-0x0000014FF1F36000-memory.dmp

Filesize
472KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads