cycbot | 4ffa2714749a783ce2b5aaefdf26845b145a1631b2c0c027e8406e838a1cf5ab

General

Target

JaffaCakes118_68732f9345efdf593a745212d567d526.exe
Size

166KB
MD5

68732f9345efdf593a745212d567d526
SHA1

ef06f9e1a835ee10b901dfa7709fc1ca16553800
SHA256

4ffa2714749a783ce2b5aaefdf26845b145a1631b2c0c027e8406e838a1cf5ab
SHA512

9769036dd81365d4b0bda27bdc7cb2a0024682089a2a96b1f2c1bcb72e0b1b7e86a76d2b8a20a8811be25fcd61771a66b17c7d9b570cfa9e502fc68538c8fc98
SSDEEP

3072:NKv0qrbcezlnFcv5VgT4+YPTSHXY/bufobOAKQTKxDJnHI/K/:NW0EjmGlYPTSHXerbbKFx

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/2040-9-0x0000000000400000-0x0000000000446000-memory.dmp	family_cycbot
behavioral1/memory/1732-14-0x0000000000400000-0x0000000000446000-memory.dmp	family_cycbot
behavioral1/memory/1732-74-0x0000000000400000-0x0000000000446000-memory.dmp	family_cycbot
behavioral1/memory/2312-78-0x0000000000400000-0x0000000000446000-memory.dmp	family_cycbot
behavioral1/memory/1732-171-0x0000000000400000-0x0000000000446000-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"	JaffaCakes118_68732f9345efdf593a745212d567d526.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1732-2-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/2040-9-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/1732-14-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/1732-74-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/2312-76-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/2312-78-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral1/memory/1732-171-0x0000000000400000-0x0000000000446000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 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_68732f9345efdf593a745212d567d526.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 2040	1732	JaffaCakes118_68732f9345efdf593a745212d567d526.exe	30
PID 1732 wrote to memory of 2040	1732	JaffaCakes118_68732f9345efdf593a745212d567d526.exe	30
PID 1732 wrote to memory of 2040	1732	JaffaCakes118_68732f9345efdf593a745212d567d526.exe	30
PID 1732 wrote to memory of 2040	1732	JaffaCakes118_68732f9345efdf593a745212d567d526.exe	30
PID 1732 wrote to memory of 2312	1732	JaffaCakes118_68732f9345efdf593a745212d567d526.exe	33
PID 1732 wrote to memory of 2312	1732	JaffaCakes118_68732f9345efdf593a745212d567d526.exe	33
PID 1732 wrote to memory of 2312	1732	JaffaCakes118_68732f9345efdf593a745212d567d526.exe	33
PID 1732 wrote to memory of 2312	1732	JaffaCakes118_68732f9345efdf593a745212d567d526.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68732f9345efdf593a745212d567d526.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68732f9345efdf593a745212d567d526.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68732f9345efdf593a745212d567d526.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68732f9345efdf593a745212d567d526.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  PID:2040
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68732f9345efdf593a745212d567d526.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68732f9345efdf593a745212d567d526.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  PID:2312

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\EA90.C55

Filesize
1KB

MD5
3a838fc6e4074ecd2be28de43961cced

SHA1
9f02059c2d4026c1cfda7e37c73508d2509af0b8

SHA256
174cbf2b4d8dc7999197c5a6cbc694e0c122365bd4ce855fa55c84e09b667fc9

SHA512
36a87af0acbd3cd26044d45c50697859e516cb5d38c049da78fb8aee702ee3c17eb2874d424c9be4ba79a6e1d4583347cd9fa3e2a598c58e120e004018b333d0

Download Submit
C:\Users\Admin\AppData\Roaming\EA90.C55

Filesize
600B

MD5
ecb7f67c03a49133245e3f8f4e561042

SHA1
d73627d05cd5e898767d179c593709eb7534d5a4

SHA256
4cc9a1eae65b8a60234cb65d605c2743d028841184bdc7d22b5b3cf9f16b014b

SHA512
fdb331f09d1e84949ebece6213176387705632f1c6a862737993d3ceb95b4696e71dd1b8b998f33a4e6ebac5cb45b40f8bd733a111f673daa138be6b0864dee4

Download Submit
C:\Users\Admin\AppData\Roaming\EA90.C55

Filesize
996B

MD5
54d6dce6ebd903d9a7eebff2e148257e

SHA1
f0a3742ca73f265e63af294362a223d5d086ea5c

SHA256
c03c2928d48924935a8f00d0ff9681bb13177a98a6852d23159f2d48843bcd59

SHA512
1eb30f581b7f3971fb7777a214af3cca1895beb3a8f1abf39076f717440652bf156845640bbde52d6bf2bcb32bd5487dd5f0b76b558b2dbb2b8a87633e41aa33

Download Submit
memory/1732-1-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/1732-2-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/1732-14-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/1732-74-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/1732-171-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2040-9-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2312-76-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2312-78-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads