agenttesla | 7aa9168ac939fe52cad38ab87124d3afc732d0ab32ae872731e92fce2bf8e856

General

Target

357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe
Size

676KB
MD5

357067685a8a687795276a45aad7d4cc
SHA1

25c1e94ce37ee39b254d08cfdcd7207a35e5650c
SHA256

7aa9168ac939fe52cad38ab87124d3afc732d0ab32ae872731e92fce2bf8e856
SHA512

ea29bd39d081dbcd1d702d46e6391ce2f4ed2819a3083f929f9bff27f87b9f5f7706b0be132dddd98401e89ffebef6dfb7b736bd507f988af8a32f1b768fa592
SSDEEP

12288:fB8QkRRoGkpFPRfVFnyYV7+Zh5YQkBtB6L:f2QkRmGeFPRtjV7+X5YQyB6L

Score

10^/10

agenttesla discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.chamundeshwari.com
Port:
587
Username:
[email protected]
Password:
5>KPDhsW

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/3868-15-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jtWJkNI = "C:\\Users\\Admin\\AppData\\Roaming\\jtWJkNI\\jtWJkNI.exe"	357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2616 set thread context of 3868	2616	357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe	91

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4636	3868	WerFault.exe	91

System Location Discovery: System Language Discovery 1 TTPs 3 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	357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	357067685a8a687795276a45aad7d4cc_JaffaCakes118.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
1716	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2616	357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe
3868	357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe
3868	357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2616	357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe
Token: SeDebugPrivilege	3868	357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2616 wrote to memory of 1716	2616	357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe	89
PID 2616 wrote to memory of 1716	2616	357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe	89
PID 2616 wrote to memory of 1716	2616	357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe	89
PID 2616 wrote to memory of 3868	2616	357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe	91
PID 2616 wrote to memory of 3868	2616	357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe	91
PID 2616 wrote to memory of 3868	2616	357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe	91
PID 2616 wrote to memory of 3868	2616	357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe	91
PID 2616 wrote to memory of 3868	2616	357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe	91
PID 2616 wrote to memory of 3868	2616	357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe	91
PID 2616 wrote to memory of 3868	2616	357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe	91
PID 2616 wrote to memory of 3868	2616	357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe	91

C:\Users\Admin\AppData\Local\Temp\357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2616
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GrjsXhs" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3311.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1716
- C:\Users\Admin\AppData\Local\Temp\357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe
  "{path}"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3868
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3868 -s 1524
    3⤵
    - Program crash
    PID:4636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 372 -p 3868 -ip 3868
1⤵
PID:4036

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\357067685a8a687795276a45aad7d4cc_JaffaCakes118.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp3311.tmp

Filesize
1KB

MD5
950616e466c3d3c9edba391180bd6af5

SHA1
c8771f3f5c87b99c927ac5b545710258e2c63ac4

SHA256
89282ce7c629717b510e5cda32042fe3536988931bed6c6fb324df2169cf2826

SHA512
57b16c8cd45ff207e5f28c5690f06cb7cab3ad42c1f55e18a18eee0e1d41658c7353750b1e40618068213115a91311f450e63444cfd580f7bf2db5d3bfa6d026

Download Submit
memory/2616-10-0x0000000006E40000-0x0000000006EF6000-memory.dmp

Filesize
728KB

Download
memory/2616-19-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/2616-4-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/2616-5-0x0000000005370000-0x000000000537A000-memory.dmp

Filesize
40KB

Download
memory/2616-6-0x0000000006CA0000-0x0000000006D3C000-memory.dmp

Filesize
624KB

Download
memory/2616-7-0x0000000006790000-0x0000000006798000-memory.dmp

Filesize
32KB

Download
memory/2616-8-0x00000000751AE000-0x00000000751AF000-memory.dmp

Filesize
4KB

Download
memory/2616-9-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/2616-0-0x00000000751AE000-0x00000000751AF000-memory.dmp

Filesize
4KB

Download
memory/2616-11-0x0000000007070000-0x00000000070EC000-memory.dmp

Filesize
496KB

Download
memory/2616-2-0x00000000059B0000-0x0000000005F54000-memory.dmp

Filesize
5.6MB

Download
memory/2616-3-0x0000000005400000-0x0000000005492000-memory.dmp

Filesize
584KB

Download
memory/2616-1-0x0000000000910000-0x00000000009C0000-memory.dmp

Filesize
704KB

Download
memory/3868-15-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3868-18-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/3868-20-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/3868-21-0x0000000005960000-0x0000000005978000-memory.dmp

Filesize
96KB

Download
memory/3868-22-0x00000000065F0000-0x0000000006656000-memory.dmp

Filesize
408KB

Download
memory/3868-23-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/3868-24-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/3868-26-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads