cycbot | 1f82895292fd0f9becfb08bcf6ce3a09799a60d0a81f61160152d35798b2c2e7

General

Target

JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe
Size

181KB
MD5

96977cff64d6d4f4d9269f5d876ee8a1
SHA1

a3342d71ae672c2a6b0e89a5d1ee959a0499f9e1
SHA256

1f82895292fd0f9becfb08bcf6ce3a09799a60d0a81f61160152d35798b2c2e7
SHA512

69a9938e7a6fd83f2e842298f377af077a0f6274bc248c11f96509aabf47659296353156cd33e0cf03ad52377d928ace442f25a84e639e15addae9462c983ab7
SSDEEP

3072:8YZ1KP0tYNpCv5GUS1z/IZ6+rNALY3bflCtGcKg0I57Inpm92yL5CeO:ectYNpW5GxrIZ6xuj7u7IpByty

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 5 IoCs

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

resource	yara_rule
behavioral2/memory/2440-14-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral2/memory/2964-15-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral2/memory/2964-79-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral2/memory/2676-83-0x0000000000400000-0x000000000044B000-memory.dmp	family_cycbot
behavioral2/memory/2964-190-0x0000000000400000-0x000000000044B000-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_96977cff64d6d4f4d9269f5d876ee8a1.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2964-2-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/2440-13-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/2440-12-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/2440-14-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/2964-15-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/2964-79-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/2676-82-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/2676-83-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/2964-190-0x0000000000400000-0x000000000044B000-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_96977cff64d6d4f4d9269f5d876ee8a1.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2964 wrote to memory of 2440	2964	JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe	83
PID 2964 wrote to memory of 2440	2964	JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe	83
PID 2964 wrote to memory of 2440	2964	JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe	83
PID 2964 wrote to memory of 2676	2964	JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe	91
PID 2964 wrote to memory of 2676	2964	JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe	91
PID 2964 wrote to memory of 2676	2964	JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe	91

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2964
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  PID:2440
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_96977cff64d6d4f4d9269f5d876ee8a1.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  PID:2676

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

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Downloads

C:\Users\Admin\AppData\Roaming\8753.910

Filesize
1KB

MD5
7308fc9a9a81c7395f431a63345a086a

SHA1
176c6988d188d3e9607195a69ee349e76818058c

SHA256
b1a3979cde31c1ef338c660e81c480ad69cfc322cf9b2c408349bb1d62eddbb7

SHA512
28782ca583ba75fc430256fa11e13f64cf972b891cc0dedcc4c2f172523cb5e5b9dbde1d621b384fe9f76a4ffcf1c98468743f849672f418262fc8a721105c91

Download Submit
C:\Users\Admin\AppData\Roaming\8753.910

Filesize
1KB

MD5
190cc24bbeb8a161e6a93d966bf06a2f

SHA1
6893423c8ecf4c033478a8b62164481e3502f073

SHA256
698b31a0ce7630cf14b458a82ffcea244fa3f1a2b07dd95f9c71035e71e7a449

SHA512
2a0c11c1c2511e5ad54206cb86a772ae44878dd9902409ad490a4b1c5ddd3248d9b9130d4283852b1a8eda63e275f9f327c39823ea03cc9188a0047262d5dfea

Download Submit
C:\Users\Admin\AppData\Roaming\8753.910

Filesize
600B

MD5
2af36b03521682ef97475cf5e5ec9b91

SHA1
7e0251091ee9a7bae29ff0dac5c7996820230800

SHA256
53ac9ec216b891837c5b7961eaa36a5ad640c16200de6dbad361a5097d3362eb

SHA512
4d84a5c82468d2748fbc9a05bbc07dc8432deadbe29a5083a148c87f212a6dd31ad62282b453e0d250bba659a23acdb99487489e788d947b1e718fd046984412

Download Submit
C:\Users\Admin\AppData\Roaming\8753.910

Filesize
996B

MD5
65fb458088d1171efb83f207eb35223f

SHA1
ef4f85a32dae3e965f4b7d5c257e22d7dcb009fe

SHA256
79ec9e070b6122e2ab91e6aedababc9e92398f1809dd27601ef7bf6f0419f1c8

SHA512
a5925d3834725e02195c90a841b974a4615ba09e3788627d554bbb343ce2d482ccc562ceb071e5f37f256e4b23127aa8c7703583f5e5043ffd76f6d73c8cfc82

Download Submit
memory/2440-12-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2440-14-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2440-13-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2676-82-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2676-81-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2676-83-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2964-15-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2964-2-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2964-79-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2964-1-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2964-190-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads