agenttesla | 8d3fe61298bc4342e3c45b69015271807db0e851b6f34800b37435cc8867179c

General

Target

Doc-94220990687845334878-109.exe
Size

612KB
MD5

369a4d5f137e2aaf60e20d636f77b743
SHA1

8cbdcc5df2d74e92a3f18138303af8a789e44ecc
SHA256

f9cdc89e99a471146ead33ee9c93bca0ecc286e65cf326c4450a9d6d8597153b
SHA512

b0a2ad49496de1cadb9b181ec263fa76cafbea3e7b4c221237ab07e7ad8b71f1c2d382d6843005d01a7f993b25fd685eb15ea499439303fb894a4f710856fff0

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.chenklins.com
Port:
587
Username:
kelv@chenklins.com
Password:
7AY8Uj[tEN)a

Signatures

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

AgentTesla Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4488-141-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

Processes:

chukwusystem.exeInstallUtil.exe

pid process

4532 chukwusystem.exe
4488 InstallUtil.exe

pid	process
4532	chukwusystem.exe
4488	InstallUtil.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

Processes:

Doc-94220990687845334878-109.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	Doc-94220990687845334878-109.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\chukwusystem = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\AppData\\Roaming\\chukwusystem.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

chukwusystem.exe

description pid process target process

PID 4532 set thread context of 4488 4532 chukwusystem.exe InstallUtil.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	pid	process	target process
PID 4532 set thread context of 4488	4532	chukwusystem.exe	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

Processes:

Doc-94220990687845334878-109.exechukwusystem.exeInstallUtil.exe

pid	process
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
3116	Doc-94220990687845334878-109.exe
4532	chukwusystem.exe
4532	chukwusystem.exe
4532	chukwusystem.exe
4488	InstallUtil.exe
4488	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Doc-94220990687845334878-109.exechukwusystem.exeInstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	3116	Doc-94220990687845334878-109.exe
Token: SeDebugPrivilege	4532	chukwusystem.exe
Token: SeDebugPrivilege	4488	InstallUtil.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

Doc-94220990687845334878-109.execmd.exechukwusystem.exe

description	pid	process	target process
PID 3116 wrote to memory of 4956	3116	Doc-94220990687845334878-109.exe	cmd.exe
PID 3116 wrote to memory of 4956	3116	Doc-94220990687845334878-109.exe	cmd.exe
PID 3116 wrote to memory of 4956	3116	Doc-94220990687845334878-109.exe	cmd.exe
PID 4956 wrote to memory of 4288	4956	cmd.exe	reg.exe
PID 4956 wrote to memory of 4288	4956	cmd.exe	reg.exe
PID 4956 wrote to memory of 4288	4956	cmd.exe	reg.exe
PID 3116 wrote to memory of 4532	3116	Doc-94220990687845334878-109.exe	chukwusystem.exe
PID 3116 wrote to memory of 4532	3116	Doc-94220990687845334878-109.exe	chukwusystem.exe
PID 3116 wrote to memory of 4532	3116	Doc-94220990687845334878-109.exe	chukwusystem.exe
PID 4532 wrote to memory of 4488	4532	chukwusystem.exe	InstallUtil.exe
PID 4532 wrote to memory of 4488	4532	chukwusystem.exe	InstallUtil.exe
PID 4532 wrote to memory of 4488	4532	chukwusystem.exe	InstallUtil.exe
PID 4532 wrote to memory of 4488	4532	chukwusystem.exe	InstallUtil.exe
PID 4532 wrote to memory of 4488	4532	chukwusystem.exe	InstallUtil.exe
PID 4532 wrote to memory of 4488	4532	chukwusystem.exe	InstallUtil.exe
PID 4532 wrote to memory of 4488	4532	chukwusystem.exe	InstallUtil.exe
PID 4532 wrote to memory of 4488	4532	chukwusystem.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\Doc-94220990687845334878-109.exe
"C:\Users\Admin\AppData\Local\Temp\Doc-94220990687845334878-109.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3116

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v chukwusystem /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\chukwusystem.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:4956

C:\Windows\SysWOW64\reg.exe
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v chukwusystem /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\chukwusystem.exe"
3⤵
- Adds Run key to start application
PID:4288

C:\Users\Admin\AppData\Roaming\chukwusystem.exe
"C:\Users\Admin\AppData\Roaming\chukwusystem.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4532

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4488

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Filesize
41KB

MD5
5d4073b2eb6d217c19f2b22f21bf8d57

SHA1
f0209900fbf08d004b886a0b3ba33ea2b0bf9da8

SHA256
ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3

SHA512
9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159

Download Submit
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
Filesize
41KB

MD5
5d4073b2eb6d217c19f2b22f21bf8d57

SHA1
f0209900fbf08d004b886a0b3ba33ea2b0bf9da8

SHA256
ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3

SHA512
9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159

Download Submit
C:\Users\Admin\AppData\Roaming\chukwusystem.exe
Filesize
612KB

MD5
369a4d5f137e2aaf60e20d636f77b743

SHA1
8cbdcc5df2d74e92a3f18138303af8a789e44ecc

SHA256
f9cdc89e99a471146ead33ee9c93bca0ecc286e65cf326c4450a9d6d8597153b

SHA512
b0a2ad49496de1cadb9b181ec263fa76cafbea3e7b4c221237ab07e7ad8b71f1c2d382d6843005d01a7f993b25fd685eb15ea499439303fb894a4f710856fff0

Download Submit
C:\Users\Admin\AppData\Roaming\chukwusystem.exe
Filesize
612KB

MD5
369a4d5f137e2aaf60e20d636f77b743

SHA1
8cbdcc5df2d74e92a3f18138303af8a789e44ecc

SHA256
f9cdc89e99a471146ead33ee9c93bca0ecc286e65cf326c4450a9d6d8597153b

SHA512
b0a2ad49496de1cadb9b181ec263fa76cafbea3e7b4c221237ab07e7ad8b71f1c2d382d6843005d01a7f993b25fd685eb15ea499439303fb894a4f710856fff0

Download Submit
memory/3116-133-0x0000000005B60000-0x0000000005BA4000-memory.dmp

Filesize
272KB

Download
memory/3116-130-0x0000000000E50000-0x0000000000EF0000-memory.dmp

Filesize
640KB

Download
memory/3116-132-0x00000000058A0000-0x0000000005932000-memory.dmp

Filesize
584KB

Download
memory/3116-131-0x0000000005D70000-0x0000000006314000-memory.dmp

Filesize
5.6MB

Download
memory/4288-135-0x0000000000000000-mapping.dmp

Download
memory/4488-140-0x0000000000000000-mapping.dmp

Download
memory/4488-141-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4488-144-0x0000000005890000-0x000000000592C000-memory.dmp

Filesize
624KB

Download
memory/4488-145-0x0000000006520000-0x0000000006586000-memory.dmp

Filesize
408KB

Download
memory/4532-136-0x0000000000000000-mapping.dmp

Download
memory/4532-139-0x0000000006120000-0x0000000006142000-memory.dmp

Filesize
136KB

Download
memory/4956-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads