cycbot | eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af

General

Target

eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe
Size

165KB
MD5

7285ebc9e86eda0cfa0d013fe2a0053d
SHA1

f484a8cf7d833ea31c8a3a6718d477be35eda989
SHA256

eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af
SHA512

84af41f32ed12ad46cbbfbb2334ba208621adbd9fe3fa1f4901c168f13fcdac5b2c34f3165f9ac9365e40c28183241b12f9760d094931e1684d5d7b1620c27b5
SSDEEP

3072:EfkfcHxa/ZrtSBnZ+k2/d7V2g855t1dRTvydaDgA+XtZ4XV:akfcHxaRhS7+kId/85zLRxgAiZ4F

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/4912-19-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/2708-20-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/2708-86-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/3944-90-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/2708-194-0x0000000000400000-0x0000000000445000-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"	eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2708-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4912-17-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4912-19-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/2708-20-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/2708-86-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/3944-90-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/2708-194-0x0000000000400000-0x0000000000445000-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	eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 4912	2708	eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe	83
PID 2708 wrote to memory of 4912	2708	eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe	83
PID 2708 wrote to memory of 4912	2708	eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe	83
PID 2708 wrote to memory of 3944	2708	eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe	93
PID 2708 wrote to memory of 3944	2708	eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe	93
PID 2708 wrote to memory of 3944	2708	eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe	93

C:\Users\Admin\AppData\Local\Temp\eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe
"C:\Users\Admin\AppData\Local\Temp\eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2708
- C:\Users\Admin\AppData\Local\Temp\eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe
  C:\Users\Admin\AppData\Local\Temp\eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4912
- C:\Users\Admin\AppData\Local\Temp\eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe
  C:\Users\Admin\AppData\Local\Temp\eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3944

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\0FE5.D80

Filesize
597B

MD5
d66f5e132ded69e40ea50d27da2e18de

SHA1
b28d005bacbf0cbcc96c2410c6b2a52996b102fb

SHA256
2786a26b6f84a61b837adb08a95d5d7c3a100a10464cc30bcaef4a72b15ea84c

SHA512
fdc28b0e851f981badce44addc26f2099137eaff34f9c382af0053c819e2cba6ba03aacb73d7ed66b264f6542e4bc6627936a535e09bc8bfdbf0853ddd383a95

Download Submit
C:\Users\Admin\AppData\Roaming\0FE5.D80

Filesize
1KB

MD5
2e7b69193013bb9340b2ad6dd3e70093

SHA1
db1bc0ecd2b2622c39b95571ac46a6db361282f0

SHA256
48a2b3297c3c19de675ee6805def2601a91375505b37410485f33c089d5e83f5

SHA512
34caafd3ef02fef41410f88abba1b4a014767e3b27fba81065aab59da3ef65440d71e49ccf47907dd5e6b98ed5604db7197afbe5d9c8183630102c0b9a1c5fc8

Download Submit
C:\Users\Admin\AppData\Roaming\0FE5.D80

Filesize
897B

MD5
c1bf60e9a501e686f48c69ff8947023a

SHA1
32cc27837869cb7f7e84b812e354e86c3c4337fd

SHA256
2d81cf9d8331d00bbce90babe2ff6eb6de375ccee217dca2fc9d357332185cf8

SHA512
751d8a709e26a6e777c512eb84addea801963e874bf66cd947f3c436bfa91d5f28772a8396747d8cf09a0cdfe78ddac8a5032a29b721e4b27fce3d1e622af63f

Download Submit
C:\Users\Admin\AppData\Roaming\0FE5.D80

Filesize
1KB

MD5
f111db8ba77a13475b454a135ed70c96

SHA1
638c3285cd60f2402a22008bf3469e339421104e

SHA256
d5219199f818abdd4b65e64cc6af07a0044a159e89425e4404bcec662db45f39

SHA512
cbf8d4ab353529114aa0ca67c3ce50a3006ea3905782915f0dd7d732fc29f0d1b2e80c55571e17cedd7a436b32ee5c4947d18e31d7e170ec8db72d756980a819

Download Submit
memory/2708-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2708-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2708-194-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2708-20-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2708-86-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3944-90-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3944-88-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4912-19-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4912-17-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads