agenttesla | 6dc8a34aece4d4250886f68c18a406e216a82886e2e34d8d8c6983bb9989591d

Analysis

max time kernel
121s
max time network
112s
platform
windows10_x64
resource
win10v20201028
submitted
10/04/2021, 08:54

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General

Target
4d8903ccb1d29a139177913312c3030c.exe
Size 540KB
Sample210410-9dmdmgv51e
SHA256 6dc8a34aece4d4250886f68c18a406e216a82886e2e34d8d8c6983bb9989591d
MD5 4d8903ccb1d29a139177913312c3030c
SHA1 5742ba48287969ff4ba8add680314f002514b3b2
SHA512 ef9411567dedda53681bc61d20124f174e01ff9f62662b825703bd603db1fb9b2221a02e627ef1fdfddcd9759293f8b23fd0b14e933ff7b046fe363310ed51c6
MD5 SHA1 SHA512

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
smtp.yandex.com
Port
587
Username
[email protected]
Password
browse9ja

Signatures

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

AgentTesla Payload 3 IoCs

resource	yara_rule
behavioral2/memory/1152-129-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/1152-130-0x00000000004375DE-mapping.dmp	family_agenttesla
behavioral2/memory/1152-136-0x0000000005060000-0x000000000555E000-memory.dmp	family_agenttesla

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 672 set thread context of 1152	672	4d8903ccb1d29a139177913312c3030c.exe	80

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

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

T1053

pid	Process
644	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
672	4d8903ccb1d29a139177913312c3030c.exe
672	4d8903ccb1d29a139177913312c3030c.exe
672	4d8903ccb1d29a139177913312c3030c.exe
1152	4d8903ccb1d29a139177913312c3030c.exe
1152	4d8903ccb1d29a139177913312c3030c.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	672	4d8903ccb1d29a139177913312c3030c.exe
Token: SeDebugPrivilege	1152	4d8903ccb1d29a139177913312c3030c.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 672 wrote to memory of 644	672	4d8903ccb1d29a139177913312c3030c.exe	78
PID 672 wrote to memory of 644	672	4d8903ccb1d29a139177913312c3030c.exe	78
PID 672 wrote to memory of 644	672	4d8903ccb1d29a139177913312c3030c.exe	78
PID 672 wrote to memory of 1152	672	4d8903ccb1d29a139177913312c3030c.exe	80
PID 672 wrote to memory of 1152	672	4d8903ccb1d29a139177913312c3030c.exe	80
PID 672 wrote to memory of 1152	672	4d8903ccb1d29a139177913312c3030c.exe	80
PID 672 wrote to memory of 1152	672	4d8903ccb1d29a139177913312c3030c.exe	80
PID 672 wrote to memory of 1152	672	4d8903ccb1d29a139177913312c3030c.exe	80
PID 672 wrote to memory of 1152	672	4d8903ccb1d29a139177913312c3030c.exe	80
PID 672 wrote to memory of 1152	672	4d8903ccb1d29a139177913312c3030c.exe	80
PID 672 wrote to memory of 1152	672	4d8903ccb1d29a139177913312c3030c.exe	80

C:\Users\Admin\AppData\Local\Temp\4d8903ccb1d29a139177913312c3030c.exe
"C:\Users\Admin\AppData\Local\Temp\4d8903ccb1d29a139177913312c3030c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:672
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GKmOwbttRhcK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp69.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:644
- C:\Users\Admin\AppData\Local\Temp\4d8903ccb1d29a139177913312c3030c.exe
  "C:\Users\Admin\AppData\Local\Temp\4d8903ccb1d29a139177913312c3030c.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1152

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/672-125-0x00000000008F0000-0x0000000000969000-memory.dmp

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memory/672-118-0x0000000004AD0000-0x0000000004AD1000-memory.dmp

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memory/672-120-0x0000000004930000-0x0000000004931000-memory.dmp

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memory/672-121-0x0000000004C60000-0x0000000004C61000-memory.dmp

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memory/672-122-0x000000007F610000-0x000000007F611000-memory.dmp

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memory/672-123-0x0000000008210000-0x0000000008216000-memory.dmp

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memory/672-124-0x0000000004A30000-0x0000000004F2E000-memory.dmp

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memory/672-114-0x00000000000A0000-0x00000000000A1000-memory.dmp

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memory/672-126-0x0000000006770000-0x00000000067AE000-memory.dmp

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memory/672-119-0x0000000004A30000-0x0000000004F2E000-memory.dmp

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memory/672-117-0x0000000004F30000-0x0000000004F31000-memory.dmp

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memory/672-116-0x0000000004990000-0x0000000004991000-memory.dmp

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memory/1152-129-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/1152-136-0x0000000005060000-0x000000000555E000-memory.dmp

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memory/1152-137-0x0000000005520000-0x0000000005521000-memory.dmp

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memory/1152-138-0x0000000005CC0000-0x0000000005CC1000-memory.dmp

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