cycbot | 4d841be30baeac58cce53882da63938c22cb125413cb9f33c90c3082b275b617

General

Target

JaffaCakes118_5117fbcd0183e295cabb023a91d042f9.exe
Size

165KB
MD5

5117fbcd0183e295cabb023a91d042f9
SHA1

058e6e685816ebe67e75e46e6417dc74dc3516d4
SHA256

4d841be30baeac58cce53882da63938c22cb125413cb9f33c90c3082b275b617
SHA512

c6990713179133d433a7ed33a8c5eee57954a31875bd32054630fd68e39b67db447fe88c04d5b5eb242bcee6c6c60c925331492ed4e8c3ac5402c62782e264ad
SSDEEP

3072:ftec/ahkaBnTFaByG6OLeYAVOIiyzy7qTvGmZkiYi/HlGm046yBP:Ac/aCUnMYGNCdOIiyzyGQ+x

Score

10^/10

cycbot backdoor discovery persistence rat upx

Malware Config

Signatures

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

Detects Cycbot payload 6 IoCs

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

resource	yara_rule
behavioral2/memory/4600-13-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral2/memory/740-14-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral2/memory/3440-84-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral2/memory/740-85-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral2/memory/740-178-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot
behavioral2/memory/740-179-0x0000000000400000-0x0000000000444000-memory.dmp	family_cycbot

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_5117fbcd0183e295cabb023a91d042f9.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/740-2-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/4600-13-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/740-14-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/3440-83-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/3440-84-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/740-85-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/740-178-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/740-179-0x0000000000400000-0x0000000000444000-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_5117fbcd0183e295cabb023a91d042f9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5117fbcd0183e295cabb023a91d042f9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5117fbcd0183e295cabb023a91d042f9.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 740 wrote to memory of 4600	740	JaffaCakes118_5117fbcd0183e295cabb023a91d042f9.exe	83
PID 740 wrote to memory of 4600	740	JaffaCakes118_5117fbcd0183e295cabb023a91d042f9.exe	83
PID 740 wrote to memory of 4600	740	JaffaCakes118_5117fbcd0183e295cabb023a91d042f9.exe	83
PID 740 wrote to memory of 3440	740	JaffaCakes118_5117fbcd0183e295cabb023a91d042f9.exe	92
PID 740 wrote to memory of 3440	740	JaffaCakes118_5117fbcd0183e295cabb023a91d042f9.exe	92
PID 740 wrote to memory of 3440	740	JaffaCakes118_5117fbcd0183e295cabb023a91d042f9.exe	92

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5117fbcd0183e295cabb023a91d042f9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5117fbcd0183e295cabb023a91d042f9.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:740
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5117fbcd0183e295cabb023a91d042f9.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5117fbcd0183e295cabb023a91d042f9.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4600
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5117fbcd0183e295cabb023a91d042f9.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5117fbcd0183e295cabb023a91d042f9.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3440

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

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\7E3C.197

Filesize
1KB

MD5
beaef6758dff2b1606e607b23ce1ae60

SHA1
6a73daf34c703992d6404898219998d2da8c6adc

SHA256
441401113e1c80469018c37ddbb70e6a8cff4f70b4a2139bd5e5696692bd4924

SHA512
e1615b2d43b6cbca936d2b4e421484a4a5fd318979015a383c07f863ffdcbffedad4d4ff842f1086ff7e9fee42e112f894ad9ab083b4695cf88e86cb268decf5

Download Submit
C:\Users\Admin\AppData\Roaming\7E3C.197

Filesize
600B

MD5
f3335e8c646e20bc549371c7db31bf1c

SHA1
a311e698131ca64f1c753c02da73084ac5ea136b

SHA256
f55a13526abb5579b61c53fee31e56bfc9b3adb73f8f80d670439b69f8358f2a

SHA512
c6799653e6a835d41f8fece53792b2e5fd7099c749421aad6fac4df363170225e0cb32d0de82a72f4a5dbb8ce25c431e51530da2d99cfd03ab7078903ae46040

Download Submit
C:\Users\Admin\AppData\Roaming\7E3C.197

Filesize
996B

MD5
0e17cca8ed8494a1a4eaefd0dd413104

SHA1
31e64c56ce969675cd2e9acfa84e6593bef667c3

SHA256
cac10cf9857f7e04c55a28c691b2529e0bee98b68d3eb0b079d0fa75cbb29b5f

SHA512
d1271c047891a45342d70f66ba87d1ef7c23593a0905cb5a9a02ec8d1b85348c26dfff23edbf11ec6f317ee5660384714fa04d78be4aeb45a30f2f2587851af6

Download Submit
memory/740-1-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/740-179-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/740-178-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/740-14-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/740-2-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/740-85-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3440-83-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/3440-84-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4600-12-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4600-13-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads