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/4996-18-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/4720-19-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/4720-80-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/1052-84-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/4720-202-0x0000000000400000-0x0000000000445000-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/4720-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4996-16-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4996-18-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4720-19-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4720-80-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/1052-84-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4720-202-0x0000000000400000-0x0000000000445000-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 4720 wrote to memory of 4996	4720	eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe	82
PID 4720 wrote to memory of 4996	4720	eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe	82
PID 4720 wrote to memory of 4996	4720	eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe	82
PID 4720 wrote to memory of 1052	4720	eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe	85
PID 4720 wrote to memory of 1052	4720	eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe	85
PID 4720 wrote to memory of 1052	4720	eef10866ceedb9811123abf82db5941f7284367ced6460d04900f9dd5ceb22af.exe	85

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:4720
- 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:4996
- 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:1052

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\BBF7.C3A

Filesize
1KB

MD5
6bb987e2e51bb26e2f6a4a997ffa4a34

SHA1
9292a373c6a224d26abfcf26deabe6d33f339ae1

SHA256
2327f8b8da9258c41f7c9ac8e814f272295796478746e64f80aafb3f984fbb45

SHA512
03b510b30b1e23cf15b481d5cded96de6bf2706a66b9cabbbb48a11e352bbf3f723f05c765b6e44d7d36b3bb3e7369ac760840192262233bd1f511ca90196a9b

Download Submit
C:\Users\Admin\AppData\Roaming\BBF7.C3A

Filesize
897B

MD5
14b19880e81f2aab4923ef88d4d46766

SHA1
535c84421f8d81cdcc02e05b0050553595f3c92e

SHA256
edfaa7236b27d92d061daf2a6ee1921956ac82dd62b0af880302d91864d746eb

SHA512
860745b2eefe2dad4128ea5f9252ef40542b2459238240c814e6fbe1945aea3ec582077b1fac30fae2cb9db923533d435a66afe68e674cad7d41287354a3ef2f

Download Submit
C:\Users\Admin\AppData\Roaming\BBF7.C3A

Filesize
1KB

MD5
f4197551b7fcd57e9c17595e03fe42ab

SHA1
1f4b186b40f3b97d2a7ffe21322908cd62196cd7

SHA256
08ced71bb7f570e6e97ce1fc8f0823ceffb195d92f78464c279e6a0c8e489dc3

SHA512
6732b5aca2a558f4d589570c859cafbab37a43db00baf49e3ac6d6f03107301b6167e27897acfcd3011c0eebc69c113ced0e626abf65a7d956b2b2a88d1f4b78

Download Submit
C:\Users\Admin\AppData\Roaming\BBF7.C3A

Filesize
597B

MD5
6fca33cbf7f0839834adede921ec4449

SHA1
833812743d440b0bc4b92d83751547157d94cd0f

SHA256
f2d5c72f24a491e7f8ccd7d8df7bf73de78b4b7b5bf39dfae7d21cb2e687529d

SHA512
470ce1592f161fe0b17fcb73d21d16d0fd057457cc2e785b2ba3f8bcca13ee263bb50b2e7c75996db1883a8d5a9ec3b5a500ca4af29a104295c19318d6f81afc

Download Submit
memory/1052-82-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1052-84-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4720-19-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4720-80-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4720-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4720-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4720-202-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4996-18-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4996-16-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads