cycbot | 91be895fabca0f6b9920b743a16051cb18129e67bad60359f98127654ea97dfd

General

Target

d5c24860ba344a30d5e45fd02b6207ad_JaffaCakes118.exe
Size

158KB
MD5

d5c24860ba344a30d5e45fd02b6207ad
SHA1

48a64c133ed4c23323d060815d113347213a9ee1
SHA256

91be895fabca0f6b9920b743a16051cb18129e67bad60359f98127654ea97dfd
SHA512

f38441a54f542c097ce5ddcd54f168ac444ca81a82c03817a200679c9ae4f9874d163868b0464d2afe87e10af092fc0149010ca22ac15d8bb8f55e0a12002a32
SSDEEP

3072:X+E1qWnse9mYtUM6aQKQB2k0Tjng/mn7rUqG/stfGtmtdTE5hhiHQO4k:6+BwYJtNM/ir3GUt+tcCV

Score

10^/10

cycbot backdoor discovery persistence rat spyware stealer 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
behavioral1/memory/2396-7-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2120-15-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2120-81-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/1928-84-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot
behavioral1/memory/2120-203-0x0000000000400000-0x0000000000442000-memory.dmp	family_cycbot

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\conhost = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\conhost.exe"	d5c24860ba344a30d5e45fd02b6207ad_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2120-2-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2396-6-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2396-7-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2120-15-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2120-81-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1928-83-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/1928-84-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral1/memory/2120-203-0x0000000000400000-0x0000000000442000-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	d5c24860ba344a30d5e45fd02b6207ad_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d5c24860ba344a30d5e45fd02b6207ad_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d5c24860ba344a30d5e45fd02b6207ad_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 2396	2120	d5c24860ba344a30d5e45fd02b6207ad_JaffaCakes118.exe	30
PID 2120 wrote to memory of 2396	2120	d5c24860ba344a30d5e45fd02b6207ad_JaffaCakes118.exe	30
PID 2120 wrote to memory of 2396	2120	d5c24860ba344a30d5e45fd02b6207ad_JaffaCakes118.exe	30
PID 2120 wrote to memory of 2396	2120	d5c24860ba344a30d5e45fd02b6207ad_JaffaCakes118.exe	30
PID 2120 wrote to memory of 1928	2120	d5c24860ba344a30d5e45fd02b6207ad_JaffaCakes118.exe	33
PID 2120 wrote to memory of 1928	2120	d5c24860ba344a30d5e45fd02b6207ad_JaffaCakes118.exe	33
PID 2120 wrote to memory of 1928	2120	d5c24860ba344a30d5e45fd02b6207ad_JaffaCakes118.exe	33
PID 2120 wrote to memory of 1928	2120	d5c24860ba344a30d5e45fd02b6207ad_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\d5c24860ba344a30d5e45fd02b6207ad_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d5c24860ba344a30d5e45fd02b6207ad_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Users\Admin\AppData\Local\Temp\d5c24860ba344a30d5e45fd02b6207ad_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d5c24860ba344a30d5e45fd02b6207ad_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2396
- C:\Users\Admin\AppData\Local\Temp\d5c24860ba344a30d5e45fd02b6207ad_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d5c24860ba344a30d5e45fd02b6207ad_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1928

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\EC48.5E3

Filesize
1KB

MD5
be549a8c76a840e9ddc6d7e39e8e1477

SHA1
1f7941a9092429596b596cc12571ff608952217d

SHA256
f95e088c8a68d180467cfaf9f2dc8e4561e0c727446cad493fe48d6ce861e440

SHA512
118088d41b51646dd074723771862e2022ed3860cbd989d11f996eb90c5325f214df306f48318ab579da90636eecf63c28a16c9519743e46ee8fed190d1ccdfc

Download Submit
C:\Users\Admin\AppData\Roaming\EC48.5E3

Filesize
600B

MD5
c3007a275271133fdab434a6439e19ef

SHA1
c02aa4515da745ff437001822de474ab0653fe75

SHA256
257375b3f01b530b55f4c2a52cc83fe78f00911abb0145e059db18b31cff2c5b

SHA512
da44b0fbd7209985c8d373317b16bc434d21134b0f2206b2da5d55796fbe5831fee05cba96b6026b7c4926d0bd2fa8ddbde9cda6b649f53dd40f2baa1872cd4c

Download Submit
C:\Users\Admin\AppData\Roaming\EC48.5E3

Filesize
996B

MD5
3e0646a2090cb6be1ed7785f886d6b0b

SHA1
341e47c624831f7a253bdb66001e56077a88a938

SHA256
81bb9bf7b7caf6f7ed707043de8c7dae6ccb32cdc9e5f6b79f868f9aedab5ea0

SHA512
6841a813f41f0fe7b5c2a31f5bdf9c466d5d2dd61e20dba54410e7a4f55d55a6359a175c0d6ec49b3599d27a7232d66a545ddb4ee01cdfd7220d1d0f69ff7d01

Download Submit
memory/1928-84-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1928-83-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2120-15-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2120-81-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2120-1-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2120-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2120-203-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2396-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2396-6-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/2396-5-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads