agenttesla | b111d82d31f2e0e08475361cc0d0ff6b063e2c5126f4a9e605990da4cd4cb52a

General

Target

MONTHLY OUTSTANDING DUES FEB-MAR.exe
Size

658KB
MD5

3c6b6f555c81e6369b4d9911fd85d726
SHA1

775d160d72ab33faddeed53dce153f4e2e2ef822
SHA256

76bd7d4ab00c260d021b928207d2617b19784eedfe615c1352419512e62fb8cf
SHA512

53e5b52ea42cef4c5eea12f4d1c600bca2c7ead63004a1ce5c663662ebd39ba1d8c7b7a22ca26e786edd84168ddf81d6b801603caf12d89665664973e88c05a6
SSDEEP

12288:kyzH2iNlw0j4dum9gzwYdJevLRcz83QnHPJ1o9Uxa05hez6JYmK3m6EdT/6qWXVU:31Xk4drSLRctHkUg05hezC6UTyqEVc

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.commtechtrading.com
Port:
587
Username:
fiajul.haq@commtechtrading.com
Password:
;elP@ho2Np 7[
Email To:
fiajul.haq@commtechtrading.com

Signatures

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

Detect packed .NET executables. Mostly AgentTeslaV4. 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2436-20-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2436-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2436-26-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2436-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2436-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_EXE_Packed_GEN01
behavioral1/memory/2688-34-0x0000000002140000-0x0000000002180000-memory.dmp	INDICATOR_EXE_Packed_GEN01

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2436-20-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2436-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2436-26-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2436-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2436-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers
behavioral1/memory/2688-34-0x0000000002140000-0x0000000002180000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables packed with SmartAssembly 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/768-4-0x0000000000240000-0x000000000024C000-memory.dmp	INDICATOR_EXE_Packed_SmartAssembly

Detects executables referencing Windows vault credential objects. Observed in infostealers 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2436-20-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2436-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2436-26-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2436-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2436-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
behavioral1/memory/2688-34-0x0000000002140000-0x0000000002180000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2436-20-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2436-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2436-26-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2436-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2436-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
behavioral1/memory/2688-34-0x0000000002140000-0x0000000002180000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

Detects executables referencing many email and collaboration clients. Observed in information stealers 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2436-20-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2436-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2436-26-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2436-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2436-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
behavioral1/memory/2688-34-0x0000000002140000-0x0000000002180000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients

Detects executables referencing many file transfer clients. Observed in information stealers 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2436-20-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2436-22-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2436-26-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2436-28-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2436-30-0x0000000000400000-0x0000000000442000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
behavioral1/memory/2688-34-0x0000000002140000-0x0000000002180000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients

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

Processes:

MONTHLY OUTSTANDING DUES FEB-MAR.exe

description pid process target process

PID 768 set thread context of 2436 768 MONTHLY OUTSTANDING DUES FEB-MAR.exe MONTHLY OUTSTANDING DUES FEB-MAR.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

2888 schtasks.exe

description	pid	process	target process
PID 768 set thread context of 2436	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe	MONTHLY OUTSTANDING DUES FEB-MAR.exe

pid	process
2888	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

MONTHLY OUTSTANDING DUES FEB-MAR.exeMONTHLY OUTSTANDING DUES FEB-MAR.exepowershell.exepowershell.exe

pid	process
768	MONTHLY OUTSTANDING DUES FEB-MAR.exe
768	MONTHLY OUTSTANDING DUES FEB-MAR.exe
768	MONTHLY OUTSTANDING DUES FEB-MAR.exe
2436	MONTHLY OUTSTANDING DUES FEB-MAR.exe
2436	MONTHLY OUTSTANDING DUES FEB-MAR.exe
2688	powershell.exe
2548	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

MONTHLY OUTSTANDING DUES FEB-MAR.exeMONTHLY OUTSTANDING DUES FEB-MAR.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe
Token: SeDebugPrivilege	2436	MONTHLY OUTSTANDING DUES FEB-MAR.exe
Token: SeDebugPrivilege	2688	powershell.exe
Token: SeDebugPrivilege	2548	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

MONTHLY OUTSTANDING DUES FEB-MAR.exe

description	pid	process	target process
PID 768 wrote to memory of 2688	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe	powershell.exe
PID 768 wrote to memory of 2688	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe	powershell.exe
PID 768 wrote to memory of 2688	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe	powershell.exe
PID 768 wrote to memory of 2688	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe	powershell.exe
PID 768 wrote to memory of 2548	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe	powershell.exe
PID 768 wrote to memory of 2548	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe	powershell.exe
PID 768 wrote to memory of 2548	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe	powershell.exe
PID 768 wrote to memory of 2548	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe	powershell.exe
PID 768 wrote to memory of 2888	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe	schtasks.exe
PID 768 wrote to memory of 2888	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe	schtasks.exe
PID 768 wrote to memory of 2888	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe	schtasks.exe
PID 768 wrote to memory of 2888	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe	schtasks.exe
PID 768 wrote to memory of 2436	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe	MONTHLY OUTSTANDING DUES FEB-MAR.exe
PID 768 wrote to memory of 2436	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe	MONTHLY OUTSTANDING DUES FEB-MAR.exe
PID 768 wrote to memory of 2436	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe	MONTHLY OUTSTANDING DUES FEB-MAR.exe
PID 768 wrote to memory of 2436	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe	MONTHLY OUTSTANDING DUES FEB-MAR.exe
PID 768 wrote to memory of 2436	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe	MONTHLY OUTSTANDING DUES FEB-MAR.exe
PID 768 wrote to memory of 2436	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe	MONTHLY OUTSTANDING DUES FEB-MAR.exe
PID 768 wrote to memory of 2436	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe	MONTHLY OUTSTANDING DUES FEB-MAR.exe
PID 768 wrote to memory of 2436	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe	MONTHLY OUTSTANDING DUES FEB-MAR.exe
PID 768 wrote to memory of 2436	768	MONTHLY OUTSTANDING DUES FEB-MAR.exe	MONTHLY OUTSTANDING DUES FEB-MAR.exe

C:\Users\Admin\AppData\Local\Temp\MONTHLY OUTSTANDING DUES FEB-MAR.exe
"C:\Users\Admin\AppData\Local\Temp\MONTHLY OUTSTANDING DUES FEB-MAR.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:768

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\MONTHLY OUTSTANDING DUES FEB-MAR.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2688

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nyhygjNEpXXE.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2548

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nyhygjNEpXXE" /XML "C:\Users\Admin\AppData\Local\Temp\tmp80F3.tmp"
2⤵
- Creates scheduled task(s)
PID:2888

C:\Users\Admin\AppData\Local\Temp\MONTHLY OUTSTANDING DUES FEB-MAR.exe
"C:\Users\Admin\AppData\Local\Temp\MONTHLY OUTSTANDING DUES FEB-MAR.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2436

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

4

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp80F3.tmp
Filesize
1KB

MD5
6e6a6707a2547d2cb3861866513cd3dd

SHA1
05b09f6421795f743ee75102725a4d95307cd31d

SHA256
5a30a896850acb6de3a501c77d802434deace73b53dabe1cb087907e8495153e

SHA512
2f9c65fdeea470713a4f7dc4a0d40cac2acd2410f5243f231f01330c13d770428a0c5b43e0d608fe9943a84be6592e0c2f0feaeece2d699cd1ff06cccad77f83

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\GGD0DDNOJCMDJGLBQFS5.temp
Filesize
7KB

MD5
ae44ab802be52298b4da0f5be57908a6

SHA1
99e4bb7fac219a8c4394b702f2c17527b4235ae9

SHA256
9670be6d51516b0f4c8916e6e66c86fbf56e685e1e9b0b575737f979f580cf86

SHA512
c0eaf7a11f14eb2ce6c881438775f516e904131dbcbddebfaaa6808a7fa83bb9d0c3698f4b6076db76235e6d2b398bb19b922f29d52facb39849a82957dc2d2b

Download Submit
memory/768-32-0x0000000074C30000-0x000000007531E000-memory.dmp

Filesize
6.9MB

Download
memory/768-3-0x0000000000220000-0x0000000000232000-memory.dmp

Filesize
72KB

Download
memory/768-2-0x00000000003F0000-0x0000000000430000-memory.dmp

Filesize
256KB

Download
memory/768-5-0x0000000004F80000-0x0000000005002000-memory.dmp

Filesize
520KB

Download
memory/768-0-0x0000000000B80000-0x0000000000C28000-memory.dmp

Filesize
672KB

Download
memory/768-1-0x0000000074C30000-0x000000007531E000-memory.dmp

Filesize
6.9MB

Download
memory/768-4-0x0000000000240000-0x000000000024C000-memory.dmp

Filesize
48KB

Download
memory/2436-30-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2436-20-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2436-22-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2436-24-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2436-26-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2436-18-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2436-28-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2436-19-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2548-37-0x00000000026A0000-0x00000000026E0000-memory.dmp

Filesize
256KB

Download
memory/2548-33-0x000000006F7D0000-0x000000006FD7B000-memory.dmp

Filesize
5.7MB

Download
memory/2548-35-0x000000006F7D0000-0x000000006FD7B000-memory.dmp

Filesize
5.7MB

Download
memory/2548-39-0x00000000026A0000-0x00000000026E0000-memory.dmp

Filesize
256KB

Download
memory/2548-41-0x000000006F7D0000-0x000000006FD7B000-memory.dmp

Filesize
5.7MB

Download
memory/2688-34-0x0000000002140000-0x0000000002180000-memory.dmp

Filesize
256KB

Download
memory/2688-31-0x000000006F7D0000-0x000000006FD7B000-memory.dmp

Filesize
5.7MB

Download
memory/2688-38-0x0000000002140000-0x0000000002180000-memory.dmp

Filesize
256KB

Download
memory/2688-36-0x000000006F7D0000-0x000000006FD7B000-memory.dmp

Filesize
5.7MB

Download
memory/2688-40-0x000000006F7D0000-0x000000006FD7B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads