cycbot | b1cb6eecb0a98d7a71ce720e19f949627958842c902404b145cffd60b005c8ea

General

Target

9d55b2dd2b9a54a36a7eca1a9b99322b_JaffaCakes118.exe
Size

176KB
MD5

9d55b2dd2b9a54a36a7eca1a9b99322b
SHA1

d53ebbbf5b63224a2e7eed6227ee3ae615271b08
SHA256

b1cb6eecb0a98d7a71ce720e19f949627958842c902404b145cffd60b005c8ea
SHA512

e545634c0a4f398b3c49a437b730fc6216f308d4998b92102574eb829e34dfa61588717c5cd99716cb4c635f065e425e2844972c97f18f713bc9dad326393253
SSDEEP

3072:GJ4ujspDuTsIDV/gWtgapfGOLxJUgi9WSV4x7KEigdG:GJtwSsIJ/g9apeOLjb6VV4M

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/4148-14-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/3932-15-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/3932-76-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/3420-79-0x0000000000400000-0x0000000000445000-memory.dmp	family_cycbot
behavioral2/memory/3932-190-0x0000000000400000-0x0000000000445000-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"	9d55b2dd2b9a54a36a7eca1a9b99322b_JaffaCakes118.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3932-2-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4148-12-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/4148-14-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/3932-15-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/3932-76-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/3420-78-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/3420-79-0x0000000000400000-0x0000000000445000-memory.dmp	upx
behavioral2/memory/3932-190-0x0000000000400000-0x0000000000445000-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	9d55b2dd2b9a54a36a7eca1a9b99322b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9d55b2dd2b9a54a36a7eca1a9b99322b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9d55b2dd2b9a54a36a7eca1a9b99322b_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3932 wrote to memory of 4148	3932	9d55b2dd2b9a54a36a7eca1a9b99322b_JaffaCakes118.exe	83
PID 3932 wrote to memory of 4148	3932	9d55b2dd2b9a54a36a7eca1a9b99322b_JaffaCakes118.exe	83
PID 3932 wrote to memory of 4148	3932	9d55b2dd2b9a54a36a7eca1a9b99322b_JaffaCakes118.exe	83
PID 3932 wrote to memory of 3420	3932	9d55b2dd2b9a54a36a7eca1a9b99322b_JaffaCakes118.exe	96
PID 3932 wrote to memory of 3420	3932	9d55b2dd2b9a54a36a7eca1a9b99322b_JaffaCakes118.exe	96
PID 3932 wrote to memory of 3420	3932	9d55b2dd2b9a54a36a7eca1a9b99322b_JaffaCakes118.exe	96

C:\Users\Admin\AppData\Local\Temp\9d55b2dd2b9a54a36a7eca1a9b99322b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9d55b2dd2b9a54a36a7eca1a9b99322b_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3932
- C:\Users\Admin\AppData\Local\Temp\9d55b2dd2b9a54a36a7eca1a9b99322b_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\9d55b2dd2b9a54a36a7eca1a9b99322b_JaffaCakes118.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4148
- C:\Users\Admin\AppData\Local\Temp\9d55b2dd2b9a54a36a7eca1a9b99322b_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\9d55b2dd2b9a54a36a7eca1a9b99322b_JaffaCakes118.exe startC:\Users\Admin\AppData\Local\Temp\csrss.exe%C:\Users\Admin\AppData\Local\Temp
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3420

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\9F1C.8B5

Filesize
1KB

MD5
e130cc82615706fbcb81efb53b8d645a

SHA1
64b566d5c2a28daf2895fa370ca6107df15e2f6d

SHA256
b16bc15cb1770c621874bf6417f9797c94361c98cba89186c1376adc0ff4a4ec

SHA512
8eb669196599b6c6cbec99940a640d5f4537bb70c80ef43a1b10d99be368decd690da91d75f2fa0ca64d485be97208704698f2079832958e7b78340b5900f9b2

Download Submit
C:\Users\Admin\AppData\Roaming\9F1C.8B5

Filesize
600B

MD5
8701b441a66a36fac1eeb59b24e708fc

SHA1
8752964f725f1750ac75e0f9b8e1591ac7c2ce03

SHA256
1c37db4575883556fc534d41185403c7a95c5f0dde484d61b122164dd4ed5d4c

SHA512
b11f76cc1a6adf2b0744f1fb78d31b8cd99ce2a9888c81b76616b109f5a3b0c8d8b904334df14ef6bc52f2b14dacb80a787e650260904f19875437cb39d467e8

Download Submit
C:\Users\Admin\AppData\Roaming\9F1C.8B5

Filesize
996B

MD5
de7798773e3cba59e2f81757201004f2

SHA1
f02c57bdf908c1e9bbc19c8985972c3ca86ae44d

SHA256
88a772eb59d032e1cd70f8279d138960aed1fd0f40b4f7a3f0d859b7bdc5b323

SHA512
a0bfaaceb4721917f4f99301b08e69894fb9a80978171764c7f1ab93e189a5076626c3f9a382631ce6f15673496d14b6e26fa9c0b0fe43a7fe54adefc648d2ca

Download Submit
memory/3420-78-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3420-79-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3932-1-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3932-2-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3932-15-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3932-76-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3932-190-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4148-12-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/4148-14-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads