agenttesla | b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def

Analysis

max time kernel
18s
max time network
19s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
02/09/2024, 14:17

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General

Target
b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe
Size 752KB
Sample240902-rlp9basbpp
SHA256 b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def
MD5 ff97fec579778776ce97d2d0118bdae5
SHA1 22914dbd72f9392dc7ebcdf96c3ea82547ff0dfe
SHA512 4dfe864b296218f894f87a5df34110983a5429d6fd3900359230ebf23962420b28cd766dcdecf3b075134572a927e0f0313244b1e7f3f3f981c257712664bf5c
SSDEEP 12288:1wfLnnvchm2rbS1jpdNvCFjG172tqYOkoWFiKkIYLJ6UEQgVhhaHFw1GfCo/Tn:Wb0hmYbSdNKFjG1CaWFiK4E7VxoTn
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla credential_access discovery execution keylogger spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol
smtp
Host
mail.cup.org.pk
Port
587
Username
[email protected]
Password
Cup@123#

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
mail.cup.org.pk
Port
587
Username
[email protected]
Password
Cup@123#
Email to
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2836	powershell.exe
2224	powershell.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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
T1552.001
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
T1552.001
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
T1552.001

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 288 set thread context of 2064	288	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe	36

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 5 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	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2940	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2064	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe
2064	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe
2836	powershell.exe
2224	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2064	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe
Token: SeDebugPrivilege	2836	powershell.exe
Token: SeDebugPrivilege	2224	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 288 wrote to memory of 2224	288	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe	30
PID 288 wrote to memory of 2224	288	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe	30
PID 288 wrote to memory of 2224	288	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe	30
PID 288 wrote to memory of 2224	288	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe	30
PID 288 wrote to memory of 2836	288	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe	32
PID 288 wrote to memory of 2836	288	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe	32
PID 288 wrote to memory of 2836	288	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe	32
PID 288 wrote to memory of 2836	288	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe	32
PID 288 wrote to memory of 2940	288	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe	33
PID 288 wrote to memory of 2940	288	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe	33
PID 288 wrote to memory of 2940	288	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe	33
PID 288 wrote to memory of 2940	288	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe	33
PID 288 wrote to memory of 2064	288	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe	36
PID 288 wrote to memory of 2064	288	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe	36
PID 288 wrote to memory of 2064	288	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe	36
PID 288 wrote to memory of 2064	288	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe	36
PID 288 wrote to memory of 2064	288	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe	36
PID 288 wrote to memory of 2064	288	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe	36
PID 288 wrote to memory of 2064	288	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe	36
PID 288 wrote to memory of 2064	288	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe	36
PID 288 wrote to memory of 2064	288	b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe	36

C:\Users\Admin\AppData\Local\Temp\b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe
"C:\Users\Admin\AppData\Local\Temp\b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:288
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2224
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FqIjunRNR.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2836
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FqIjunRNR" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD9CC.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2940
- C:\Users\Admin\AppData\Local\Temp\b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe
  "C:\Users\Admin\AppData\Local\Temp\b7d2cbbb89d8e19df00ca2912eed64113e334ae25e27151c384fe170f2d58def.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2064

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

tmpD9CC.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpD9CC.tmp
Size 1KB
SHA256 0e8df3248da7ca4fca3358a1720262949c43ccfcd8d2a97a74d8514be564e0a7
MD5 fd279b6d95bf1a2dcc4f4472854d362b
SHA1 b3166902f89f51ffd11aa581b93c32989656f9bc
SHA512 5f9d63f9e7ef2f07f264bab220fffcdd0b96f7f14a8d3dadf0ab0a6dc4865cf7208b4e51c4b79e0f9492b86a5321e1a355938e1afdc27857c0d3214b1c101df7
MD5 SHA1 SHA512

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TNNQTZUG97SWIFJEVMKX.temp

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\TNNQTZUG97SWIFJEVMKX.temp
Size 7KB
SHA256 abb9ef748a5e4a6be4a60e02a52e244100ba11cad98c4b05f556d6d490a3cb5e
MD5 d6e58fb49ab6f97adbb947dc05526838
SHA1 8582c11174114f30385e722dbaaef77ffe1e6b2c
SHA512 52a248ca86912973ed816e229515d7a4737047037a3b047c5d9cd096e1e241f4ebe5cabbfd8d46a90f6b8eb8a33b4206c4caeda6c2bb60932e64c47b22f73786
SSDEEP 96:wNyCdM8tnqvsqvJCwoKOKNyCdM8tnqvsEHyqvJCworcOTgiLQHJVb7P6XlUVZ:0f5UoOf5AHnor5BYVb7P6+
MD5 SHA1 SHA512 SSDEEP

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memory/288-5-0x0000000074710000-0x0000000074DFE000-memory.dmp

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memory/288-33-0x0000000074710000-0x0000000074DFE000-memory.dmp

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memory/288-4-0x00000000004A0000-0x00000000004B2000-memory.dmp

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memory/288-0-0x000000007471E000-0x000000007471F000-memory.dmp

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memory/288-6-0x0000000000570000-0x0000000000578000-memory.dmp

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memory/288-7-0x0000000000580000-0x000000000058E000-memory.dmp

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memory/288-8-0x0000000004E90000-0x0000000004F14000-memory.dmp

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memory/288-2-0x0000000074710000-0x0000000074DFE000-memory.dmp

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memory/288-1-0x0000000000E30000-0x0000000000EF0000-memory.dmp

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memory/288-3-0x0000000000D60000-0x0000000000DFC000-memory.dmp

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memory/2064-22-0x0000000000400000-0x0000000000442000-memory.dmp

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memory/2064-32-0x0000000000400000-0x0000000000442000-memory.dmp

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memory/2064-31-0x0000000000400000-0x0000000000442000-memory.dmp

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memory/2064-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

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memory/2064-27-0x0000000000400000-0x0000000000442000-memory.dmp

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memory/2064-25-0x0000000000400000-0x0000000000442000-memory.dmp

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memory/2064-23-0x0000000000400000-0x0000000000442000-memory.dmp

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memory/2064-30-0x0000000000400000-0x0000000000442000-memory.dmp

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