agenttesla | 3b980a607bf3bf7e57c2f0745195b2040ea0aafd0a9bea23d0985bff045c72db

Analysis

max time kernel
46s
max time network
34s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
22/11/2022, 04:18

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General

Target
23433.exe
Size 320KB
Sample221122-ewybfsaa62
SHA256 3b980a607bf3bf7e57c2f0745195b2040ea0aafd0a9bea23d0985bff045c72db
MD5 68641dda684fa0e75812fcd786eb24a9
SHA1 9233491ccf82ccecdecbae1a2ce48aeee3973b01
SHA512 68acaa600fb5ceb9653671efafc99708c052fa390d089249a8fae0133831546c1cefa2b3a1b661f0577812008cb62e23b2a63a81435a64909abc62d79a743b47
SSDEEP 6144:MEa0N39tTkFUIxHabEPWBUEgrhOCTPkezIGCLUuxWuu7Lr5D4lr1rZcVU:XLil0CjPTPHzIGCQuxWf798s+
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.jackbarber.com
Port
587
Username
[email protected]
Password
mqvXXv,49r(*
Email to
[email protected]

Signatures

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

Executes dropped EXE 2 IoCs

pid	Process
892	zjglmqof.exe
564	zjglmqof.exe

Loads dropped DLL 2 IoCs

pid	Process
532	23433.exe
892	zjglmqof.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	zjglmqof.exe
Key opened	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	zjglmqof.exe
Key opened	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	zjglmqof.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Windows\CurrentVersion\Run\etvy = "C:\\Users\\Admin\\AppData\\Roaming\\pcqelosd\\sqbkcfkrxtfrf.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\zjglmqof.exe\""	zjglmqof.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Windows\CurrentVersion\Run\MY APP = "C:\\Users\\Admin\\AppData\\Roaming\\MY APP\\MY APP.exe"	zjglmqof.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
3	api.ipify.org
4	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 892 set thread context of 564	892	zjglmqof.exe	29

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
564	zjglmqof.exe
564	zjglmqof.exe
564	zjglmqof.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
892	zjglmqof.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	564	zjglmqof.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 532 wrote to memory of 892	532	23433.exe	28
PID 532 wrote to memory of 892	532	23433.exe	28
PID 532 wrote to memory of 892	532	23433.exe	28
PID 532 wrote to memory of 892	532	23433.exe	28
PID 892 wrote to memory of 564	892	zjglmqof.exe	29
PID 892 wrote to memory of 564	892	zjglmqof.exe	29
PID 892 wrote to memory of 564	892	zjglmqof.exe	29
PID 892 wrote to memory of 564	892	zjglmqof.exe	29
PID 892 wrote to memory of 564	892	zjglmqof.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	zjglmqof.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	zjglmqof.exe

C:\Users\Admin\AppData\Local\Temp\23433.exe
"C:\Users\Admin\AppData\Local\Temp\23433.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:532
- C:\Users\Admin\AppData\Local\Temp\zjglmqof.exe
  "C:\Users\Admin\AppData\Local\Temp\zjglmqof.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:892
- - C:\Users\Admin\AppData\Local\Temp\zjglmqof.exe
    "C:\Users\Admin\AppData\Local\Temp\zjglmqof.exe"
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook profiles
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:564

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

gzedewwgeyx.g

Path C:\Users\Admin\AppData\Local\Temp\gzedewwgeyx.g
Size 296KB
SHA256 69a49547df7d5507b2450a63b5a8d760cfd01495cad7d5e9d2885932d34cf961
MD5 d3a1c37517f5afb0dcc211cba334eda6
SHA1 ff54f105e6dd4799a49e9171ba07f406037d1c84
SHA512 5e7e12225cea100388534081ea839a049d536d589babe85587c34c3f0eb233b44d68520c37268a44870832e1b8ba74bcfd9e9fa2c7dba463f622ecee1fb9ebe0
SSDEEP 6144:TyuR822xevV+fbUd2LCo/iwL7mUolf75SAbZDVqwJ/kUGpPBS69Y:TyuRIxy9X6F817pbjqwJMUX
MD5 SHA1 SHA512 SSDEEP

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vfhwsqxqot.p

Path C:\Users\Admin\AppData\Local\Temp\vfhwsqxqot.p
Size 7KB
SHA256 33f515d08ec957893421e67fce6c3d38ce1dc35d717a20fd7b32475a4c6b6516
MD5 26a1bb1bb1c8a51b18979ea8e4996225
SHA1 eeaf42552cf5eece8d1db48922b4abe00427723a
SHA512 782b4f647e4bcd2dae0062828dab6fc6fd4ded2f354f2830c0d45ceb57511d5dca24664ee4fad514f48411ead422fb354479875b03f61dd36f7d797fa6c599ba
SSDEEP 192:HAZ0Ar6q3nYsmTzcDWcBSTjMs9S3uCzji7puekpNu3s/yCW:Hi7c9gmjh9GiVkb+EW
MD5 SHA1 SHA512 SSDEEP

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zjglmqof.exe

Path C:\Users\Admin\AppData\Local\Temp\zjglmqof.exe
Size 10KB
SHA256 1c68439f904b5553b63987b0abe730ae8f9d0bbf785ea1f9f5b5f56581cb428d
MD5 ffcae5cd8d19624525478d12a14048bd
SHA1 3439021f3315ad3f607424b0cb91cbd2eeda59c6
SHA512 8af6429bcadb1412a59e278471ed4fa00e835bd86c01114586743dbd3388fc0278ad60cde7109522a0fda716b9fe802d38850b055f70964ffd031eac2187ed78
SSDEEP 192:887bVD5VYkTAxprtQ10Mcqcl1RyPmoyny2utv09vI:88fJbuaWM2am+R
MD5 SHA1 SHA512 SSDEEP

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zjglmqof.exe

Path C:\Users\Admin\AppData\Local\Temp\zjglmqof.exe
Size 10KB
SHA256 1c68439f904b5553b63987b0abe730ae8f9d0bbf785ea1f9f5b5f56581cb428d
MD5 ffcae5cd8d19624525478d12a14048bd
SHA1 3439021f3315ad3f607424b0cb91cbd2eeda59c6
SHA512 8af6429bcadb1412a59e278471ed4fa00e835bd86c01114586743dbd3388fc0278ad60cde7109522a0fda716b9fe802d38850b055f70964ffd031eac2187ed78
SSDEEP 192:887bVD5VYkTAxprtQ10Mcqcl1RyPmoyny2utv09vI:88fJbuaWM2am+R
MD5 SHA1 SHA512 SSDEEP

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zjglmqof.exe

Path C:\Users\Admin\AppData\Local\Temp\zjglmqof.exe
Size 10KB
SHA256 1c68439f904b5553b63987b0abe730ae8f9d0bbf785ea1f9f5b5f56581cb428d
MD5 ffcae5cd8d19624525478d12a14048bd
SHA1 3439021f3315ad3f607424b0cb91cbd2eeda59c6
SHA512 8af6429bcadb1412a59e278471ed4fa00e835bd86c01114586743dbd3388fc0278ad60cde7109522a0fda716b9fe802d38850b055f70964ffd031eac2187ed78
SSDEEP 192:887bVD5VYkTAxprtQ10Mcqcl1RyPmoyny2utv09vI:88fJbuaWM2am+R
MD5 SHA1 SHA512 SSDEEP

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zjglmqof.exe

Path \Users\Admin\AppData\Local\Temp\zjglmqof.exe
Size 10KB
SHA256 1c68439f904b5553b63987b0abe730ae8f9d0bbf785ea1f9f5b5f56581cb428d
MD5 ffcae5cd8d19624525478d12a14048bd
SHA1 3439021f3315ad3f607424b0cb91cbd2eeda59c6
SHA512 8af6429bcadb1412a59e278471ed4fa00e835bd86c01114586743dbd3388fc0278ad60cde7109522a0fda716b9fe802d38850b055f70964ffd031eac2187ed78
SSDEEP 192:887bVD5VYkTAxprtQ10Mcqcl1RyPmoyny2utv09vI:88fJbuaWM2am+R
MD5 SHA1 SHA512 SSDEEP

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zjglmqof.exe

Path \Users\Admin\AppData\Local\Temp\zjglmqof.exe
Size 10KB
SHA256 1c68439f904b5553b63987b0abe730ae8f9d0bbf785ea1f9f5b5f56581cb428d
MD5 ffcae5cd8d19624525478d12a14048bd
SHA1 3439021f3315ad3f607424b0cb91cbd2eeda59c6
SHA512 8af6429bcadb1412a59e278471ed4fa00e835bd86c01114586743dbd3388fc0278ad60cde7109522a0fda716b9fe802d38850b055f70964ffd031eac2187ed78
SSDEEP 192:887bVD5VYkTAxprtQ10Mcqcl1RyPmoyny2utv09vI:88fJbuaWM2am+R
MD5 SHA1 SHA512 SSDEEP

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memory/532-54-0x00000000754F1000-0x00000000754F3000-memory.dmp

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memory/564-66-0x00000000004C0000-0x00000000004FC000-memory.dmp

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memory/564-67-0x0000000000400000-0x000000000044E000-memory.dmp

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