cycbot | aed03500ea174b94cd4382ddf03af3fdbf45df423f3099c9be69cf76abb588c2

General

Target

JaffaCakes118_8888145b33aa163e5735260c9ee4059c.exe
Size

172KB
MD5

8888145b33aa163e5735260c9ee4059c
SHA1

d9745a72ba82507e6ce9013367aa93a89eec03c9
SHA256

aed03500ea174b94cd4382ddf03af3fdbf45df423f3099c9be69cf76abb588c2
SHA512

7bd1c54dc88eece2bd6c3f3b5cdf9c985a531d1429714d7b533cfc0b5b2a57beb71d00a5c865536bee7847e0abee61107ee31c5acb3cc09f3f15142682738273
SSDEEP

3072:boqDGUf0RRfoJLDw76Ixeki38ETjMqcE:boqY0LO6IxekisEa

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/2248-12-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2084-13-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2084-78-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2848-80-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral1/memory/2084-185-0x0000000000400000-0x0000000000445000-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_8888145b33aa163e5735260c9ee4059c.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2084-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2248-12-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2084-13-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2084-78-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2848-80-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral1/memory/2084-185-0x0000000000400000-0x0000000000445000-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_8888145b33aa163e5735260c9ee4059c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8888145b33aa163e5735260c9ee4059c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8888145b33aa163e5735260c9ee4059c.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2248	2084	JaffaCakes118_8888145b33aa163e5735260c9ee4059c.exe	31
PID 2084 wrote to memory of 2248	2084	JaffaCakes118_8888145b33aa163e5735260c9ee4059c.exe	31
PID 2084 wrote to memory of 2248	2084	JaffaCakes118_8888145b33aa163e5735260c9ee4059c.exe	31
PID 2084 wrote to memory of 2248	2084	JaffaCakes118_8888145b33aa163e5735260c9ee4059c.exe	31
PID 2084 wrote to memory of 2848	2084	JaffaCakes118_8888145b33aa163e5735260c9ee4059c.exe	33
PID 2084 wrote to memory of 2848	2084	JaffaCakes118_8888145b33aa163e5735260c9ee4059c.exe	33
PID 2084 wrote to memory of 2848	2084	JaffaCakes118_8888145b33aa163e5735260c9ee4059c.exe	33
PID 2084 wrote to memory of 2848	2084	JaffaCakes118_8888145b33aa163e5735260c9ee4059c.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8888145b33aa163e5735260c9ee4059c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8888145b33aa163e5735260c9ee4059c.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8888145b33aa163e5735260c9ee4059c.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8888145b33aa163e5735260c9ee4059c.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2248
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8888145b33aa163e5735260c9ee4059c.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8888145b33aa163e5735260c9ee4059c.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2848

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\472A.55D

Filesize
1KB

MD5
771cc0ffc51d3e4f23e5f2bd9f67848b

SHA1
b590e3b3c455e7e3b2b05a07c756ac3b63e4a6cd

SHA256
c7d25fa193323e5410534782218d801ae38c39893bbd80450b6c31f75f542dfe

SHA512
b9c53083331991ef6ba2b5f911278923ff37186520c2582c5fee24c98626f80f3c4a22b0ef626b5d14e2b6180f3cf06d388f6e24b51f2692507d864cb43842b0

Download Submit
C:\Users\Admin\AppData\Roaming\472A.55D

Filesize
600B

MD5
6a181eb41895b92504a15e0082982a53

SHA1
bf36dd00f8f9e255d711da459d300f73196b3c59

SHA256
e5c4c8082e86936c42876aabc65f4c6ff7d986702a0afdde38cf19123ebf071c

SHA512
70d0ee0db379a8a2c9d5616232cc9bad098241e38efda7ff9f009b16114f783dcfd1387bdf3e3982fab86006e807ba84a82f5aba4e15ac5e9a1231cd480d0d43

Download Submit
C:\Users\Admin\AppData\Roaming\472A.55D

Filesize
996B

MD5
73d91d9ff438449c70ba2c1222ae4787

SHA1
07e04a43e0914a7243f767a31d859971902481fd

SHA256
ae5a218139498a23e3105e6db38e406d3204b1b0b151966a8813b45f66409ffa

SHA512
91f15fa55990283c67e4b965a08b4ba3046976fa7f23a71c3355b92a1895506e950d4a8f69e742e9b8858cf9faef7807a86eb3564dc2f10aba45ad206c6e388f

Download Submit
memory/2084-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2084-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2084-13-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2084-78-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2084-185-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2248-12-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2848-80-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads