agenttesla | e17431ad6de18342227a9f66762fe58d98d2c563ff70702487374f2cdb784ab6

General

Target

f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe
Size

635KB
MD5

f8dcb65b454009ba6b476be734554418
SHA1

cb6040314dbbeda2d354cecbe922de717cfb3f8d
SHA256

e17431ad6de18342227a9f66762fe58d98d2c563ff70702487374f2cdb784ab6
SHA512

37e2729d8b625e43067386f635157ea98dd2dca9118c7017045cf2111f7a0481e5a0731eb6e5477151219323221be4f9cc0b08de76040536430bb8e4f75df52b
SSDEEP

12288:Ap203crPe0z/UX44AYb1j3v617Wr7piXQB/dQU/BjVR2gF:i3crG0LilFb1mgrtKQBF/h2g

Score

10^/10

agenttesla discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.wowwow.com.sg
Port:
587
Username:
[email protected]
Password:
$$wow_5405*
Email To:
[email protected]

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/4536-17-0x0000000000400000-0x000000000043C000-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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4924 set thread context of 4536	4924	f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe	93

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 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f8dcb65b454009ba6b476be734554418_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
1356	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4536	f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe
4536	f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4924	f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe
Token: SeDebugPrivilege	4536	f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4924 wrote to memory of 1356	4924	f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe	91
PID 4924 wrote to memory of 1356	4924	f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe	91
PID 4924 wrote to memory of 1356	4924	f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe	91
PID 4924 wrote to memory of 4536	4924	f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe	93
PID 4924 wrote to memory of 4536	4924	f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe	93
PID 4924 wrote to memory of 4536	4924	f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe	93
PID 4924 wrote to memory of 4536	4924	f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe	93
PID 4924 wrote to memory of 4536	4924	f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe	93
PID 4924 wrote to memory of 4536	4924	f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe	93
PID 4924 wrote to memory of 4536	4924	f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe	93
PID 4924 wrote to memory of 4536	4924	f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe	93

C:\Users\Admin\AppData\Local\Temp\f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4924
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DPTQAYxHbUub" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8D85.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1356
- C:\Users\Admin\AppData\Local\Temp\f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

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\f8dcb65b454009ba6b476be734554418_JaffaCakes118.exe.log

Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8D85.tmp

Filesize
1KB

MD5
47cc403c4d2fdfa19b2b62315fd571c8

SHA1
5e14f419bd238b12c67ea9fe7daf64a1b096959e

SHA256
5cae1fe698adc1c3408185c7eee43c5b1baefca2580db858054c1b9efd4d8220

SHA512
5a37c98b44f79d2448d2e4c3e19b1b363e5944118f241d357db5246e3018bc609fe4618e3ec6e1ece8f39fa0a95dd75d6b767a9949c57f4a48fb57a351eb35b8

Download Submit
memory/4536-26-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/4536-25-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/4536-24-0x0000000005CD0000-0x0000000005D36000-memory.dmp

Filesize
408KB

Download
memory/4536-23-0x0000000005C30000-0x0000000005C48000-memory.dmp

Filesize
96KB

Download
memory/4536-22-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/4536-21-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/4536-17-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4924-5-0x0000000004C90000-0x0000000004C9A000-memory.dmp

Filesize
40KB

Download
memory/4924-10-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/4924-11-0x0000000005C10000-0x0000000005C7E000-memory.dmp

Filesize
440KB

Download
memory/4924-9-0x0000000074F2E000-0x0000000074F2F000-memory.dmp

Filesize
4KB

Download
memory/4924-8-0x0000000004CF0000-0x0000000004CFA000-memory.dmp

Filesize
40KB

Download
memory/4924-20-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/4924-7-0x0000000004F40000-0x0000000004F96000-memory.dmp

Filesize
344KB

Download
memory/4924-6-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/4924-0-0x0000000074F2E000-0x0000000074F2F000-memory.dmp

Filesize
4KB

Download
memory/4924-4-0x0000000004D10000-0x0000000004DA2000-memory.dmp

Filesize
584KB

Download
memory/4924-3-0x0000000005220000-0x00000000057C4000-memory.dmp

Filesize
5.6MB

Download
memory/4924-2-0x0000000004BD0000-0x0000000004C6C000-memory.dmp

Filesize
624KB

Download
memory/4924-1-0x0000000000190000-0x0000000000236000-memory.dmp

Filesize
664KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads