cycbot | 1b974a29763600ad330e8afa71cc3b00fa5e1b8a94ce02b4215b841f8c74df87

General

Target

JaffaCakes118_27d1639875727974db376290fd391d54.exe
Size

179KB
MD5

27d1639875727974db376290fd391d54
SHA1

45c0a5f21abbaa6c0dce67816fdab9bcf4fd693d
SHA256

1b974a29763600ad330e8afa71cc3b00fa5e1b8a94ce02b4215b841f8c74df87
SHA512

a5580a527a6db51bd7d47f6abd6982061f0cd894ec1b1f153343dc2adea583930c06e6f4d87e39613ebae3376ea7dae09f2b78f306356691013ef530223a22af
SSDEEP

3072:u20pFVLHzjIDVZ1vvtFh1AgH+dXzglLnZPIm1wu6Ufk2JDHwDm1b3HsRZ:nYdHPa5R+gH+dE7PImBk2Nam1bWZ

Score

10^/10

cycbot backdoor discovery rat upx

Malware Config

Signatures

Cycbot
Cycbot is a backdoor and trojan written in C++..
backdoor rat cycbot
Cycbot family
cycbot

Detects Cycbot payload 5 IoCs

Cycbot is a backdoor and trojan written in C++.

resource	yara_rule
behavioral2/memory/4224-13-0x0000000000400000-0x0000000000455000-memory.dmp	family_cycbot
behavioral2/memory/4580-15-0x0000000000400000-0x0000000000452000-memory.dmp	family_cycbot
behavioral2/memory/4580-16-0x0000000000400000-0x0000000000455000-memory.dmp	family_cycbot
behavioral2/memory/3468-128-0x0000000000400000-0x0000000000455000-memory.dmp	family_cycbot
behavioral2/memory/4580-328-0x0000000000400000-0x0000000000455000-memory.dmp	family_cycbot

UPX packed file 9 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4580-4-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/4224-12-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/4224-11-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/4224-13-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/4580-15-0x0000000000400000-0x0000000000452000-memory.dmp	upx
behavioral2/memory/4580-16-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/3468-127-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/3468-128-0x0000000000400000-0x0000000000455000-memory.dmp	upx
behavioral2/memory/4580-328-0x0000000000400000-0x0000000000455000-memory.dmp	upx

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	JaffaCakes118_27d1639875727974db376290fd391d54.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_27d1639875727974db376290fd391d54.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_27d1639875727974db376290fd391d54.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4580 wrote to memory of 4224	4580	JaffaCakes118_27d1639875727974db376290fd391d54.exe	83
PID 4580 wrote to memory of 4224	4580	JaffaCakes118_27d1639875727974db376290fd391d54.exe	83
PID 4580 wrote to memory of 4224	4580	JaffaCakes118_27d1639875727974db376290fd391d54.exe	83
PID 4580 wrote to memory of 3468	4580	JaffaCakes118_27d1639875727974db376290fd391d54.exe	91
PID 4580 wrote to memory of 3468	4580	JaffaCakes118_27d1639875727974db376290fd391d54.exe	91
PID 4580 wrote to memory of 3468	4580	JaffaCakes118_27d1639875727974db376290fd391d54.exe	91

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27d1639875727974db376290fd391d54.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27d1639875727974db376290fd391d54.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4580
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27d1639875727974db376290fd391d54.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27d1639875727974db376290fd391d54.exe startC:\Program Files (x86)\LP\298A\E92.exe%C:\Program Files (x86)\LP\298A
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4224
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27d1639875727974db376290fd391d54.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27d1639875727974db376290fd391d54.exe startC:\Users\Admin\AppData\Roaming\A4056\B5429.exe%C:\Users\Admin\AppData\Roaming\A4056
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3468

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\A4056\6EC2.405

Filesize
696B

MD5
0fca2f01c51217b246ff93786b2409b1

SHA1
2a3bf9eb95df2d36f93f810734625b7cbba664ac

SHA256
fcb54edce1b52b1de009ba733cd1eb23d49a1829b5ffb8a69fe7f25ec1f2aeac

SHA512
66291174a0a7d2b65c19def6b9f418d4be408cea6f2c42f1cbc0b58d7d731f34ea2713106c5a733e52b951fc226bdc00e2783ad3f55dbd53c832300f94daa16f

Download Submit
C:\Users\Admin\AppData\Roaming\A4056\6EC2.405

Filesize
300B

MD5
0fb3b0416add8ad69be2bf60e07f1785

SHA1
8f80dc791c4e34f894948a3015ca3ab047d195b1

SHA256
888b36130f49c74478c7946f61a4856410bd90ff642bf14f85979c9e3de7d7bd

SHA512
6833e2e40872144d9995688eb10a7d8e51c650b679506a5502f0d0632f924f2ac8dec33b00be2587d08ef558b2cfe243b892f3b4aef90ef69957d6f15fabf05b

Download Submit
C:\Users\Admin\AppData\Roaming\A4056\6EC2.405

Filesize
1KB

MD5
c238dd359d83a9dc0adf8747b84b30d3

SHA1
433ffd904456d15f0c146f0a03f67a63c0d74dc7

SHA256
603d38134297c235ba837d2203892f925e32a556fe1439bc931665a9a1ba8b2a

SHA512
156bc1324ada52feeab1df9a91379385ec56ec5fe19a8f4159f5be8e80a49f38f47b5a9e23bae304eed34e21463b5e08e365cbf93aa8e13d14fe6f70713e2b41

Download Submit
memory/3468-129-0x0000000075210000-0x0000000075249000-memory.dmp

Filesize
228KB

Download
memory/3468-128-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/3468-127-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/3468-125-0x0000000075210000-0x0000000075249000-memory.dmp

Filesize
228KB

Download
memory/4224-12-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4224-14-0x0000000075210000-0x0000000075249000-memory.dmp

Filesize
228KB

Download
memory/4224-13-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4224-11-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4224-9-0x0000000075210000-0x0000000075249000-memory.dmp

Filesize
228KB

Download
memory/4580-15-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/4580-16-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4580-0-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4580-4-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4580-3-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/4580-1-0x0000000075210000-0x0000000075249000-memory.dmp

Filesize
228KB

Download
memory/4580-328-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/4580-329-0x0000000075210000-0x0000000075249000-memory.dmp

Filesize
228KB

Download

Analysis

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