cycbot | 93974daf245cf75829a16fd39adb7b8555ff9b319c07759c7393d4994e6a0168

General

Target

d809c8711fc3d906b79a0d80e3b10461_JaffaCakes118.exe
Size

167KB
MD5

d809c8711fc3d906b79a0d80e3b10461
SHA1

c9d5781376f572f7f0c06d6048bbeef76f853187
SHA256

93974daf245cf75829a16fd39adb7b8555ff9b319c07759c7393d4994e6a0168
SHA512

b14badbfb2fffcfc0e74ee7cd421ca01f4ddfd0e3431e544a12f63993474d803930cbbdd954f4c530be037278a424fd75f7387fac1a33f2dc9392c3f40535c61
SSDEEP

3072:lxOvJRcE0srzPNzoS0duNOx7ksl5oyAvEyIIWXIpRe6gta:IJRcsrezdu0x7km5oyAvEjxcgt

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 7 IoCs

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

resource	yara_rule
behavioral2/memory/1532-14-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/3440-15-0x0000000000400000-0x000000000048D000-memory.dmp	family_cycbot
behavioral2/memory/3440-16-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/3440-79-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/1700-83-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/3440-185-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/3440-186-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\7EF7C\\6D852.exe"	d809c8711fc3d906b79a0d80e3b10461_JaffaCakes118.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3440-2-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1532-12-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1532-14-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3440-15-0x0000000000400000-0x000000000048D000-memory.dmp	upx
behavioral2/memory/3440-16-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3440-79-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1700-82-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1700-83-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3440-185-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3440-186-0x0000000000400000-0x0000000000490000-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	d809c8711fc3d906b79a0d80e3b10461_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3440 wrote to memory of 1532	3440	d809c8711fc3d906b79a0d80e3b10461_JaffaCakes118.exe	83
PID 3440 wrote to memory of 1532	3440	d809c8711fc3d906b79a0d80e3b10461_JaffaCakes118.exe	83
PID 3440 wrote to memory of 1532	3440	d809c8711fc3d906b79a0d80e3b10461_JaffaCakes118.exe	83
PID 3440 wrote to memory of 1700	3440	d809c8711fc3d906b79a0d80e3b10461_JaffaCakes118.exe	93
PID 3440 wrote to memory of 1700	3440	d809c8711fc3d906b79a0d80e3b10461_JaffaCakes118.exe	93
PID 3440 wrote to memory of 1700	3440	d809c8711fc3d906b79a0d80e3b10461_JaffaCakes118.exe	93

C:\Users\Admin\AppData\Local\Temp\d809c8711fc3d906b79a0d80e3b10461_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d809c8711fc3d906b79a0d80e3b10461_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3440
- C:\Users\Admin\AppData\Local\Temp\d809c8711fc3d906b79a0d80e3b10461_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d809c8711fc3d906b79a0d80e3b10461_JaffaCakes118.exe startC:\Program Files (x86)\LP\5287\9D9.exe%C:\Program Files (x86)\LP\5287
  2⤵
  PID:1532
- C:\Users\Admin\AppData\Local\Temp\d809c8711fc3d906b79a0d80e3b10461_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\d809c8711fc3d906b79a0d80e3b10461_JaffaCakes118.exe startC:\Program Files (x86)\7CE4A\lvvm.exe%C:\Program Files (x86)\7CE4A
  2⤵
  PID:1700

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Winlogon Helper DLL

1

T1547.004

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\7EF7C\CE4A.EF7

Filesize
1KB

MD5
76ef62f91b25fb2e0103cde5315f3dc9

SHA1
2c590ae5cf657090c676dc33cc801f7915fef02b

SHA256
b50726a7837b4cb8094bcf050330e674e84b22ab0229d603f291d0724b6fceb9

SHA512
2dc456f69251e3a9874c6192a3a7be79fd680b5d2ebaa3688f16616f695d4df1fe9d4e1ebaa873eeae4451229d09ceb69925d36ad6c046365a37e7205a6f92ce

Download Submit
C:\Users\Admin\AppData\Roaming\7EF7C\CE4A.EF7

Filesize
600B

MD5
2876ee78a24ecd7433707962274332b5

SHA1
01ea8b107f85a75585aca8a70b2dddc3aa00dd27

SHA256
2075ed44389dd3fe719cc1802e5469f6f07499bf5f4e465ceca30efb61b74ad6

SHA512
080ee5588c7182c556a1dc88b6b61ddd33c5b246c26fd3cc7245fcf28f355ebbda41603ef3e95cc8cb9b7104ad9afbca3eac1e02d50d9c4faede12376d64e960

Download Submit
C:\Users\Admin\AppData\Roaming\7EF7C\CE4A.EF7

Filesize
996B

MD5
32aaed1e7960abf3f1d44ee2f87533f4

SHA1
47a0fc9c429b07ea19be7e2ac96e40bf7b33772b

SHA256
b160a9b2ee8897e4fea9ea6dd754e13047b89d172e64d263c06416d875e52fc4

SHA512
deb9b0e60446120d79d11288d2604bf6855d364476420717e575dc724887d7364a6c2010b63f8c094d67626e15d90e203eccec8418f37a07b2851b9a808099fd

Download Submit
memory/1532-14-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1532-12-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1700-81-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1700-82-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/1700-83-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3440-15-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3440-16-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3440-1-0x0000000000400000-0x000000000048D000-memory.dmp

Filesize
564KB

Download
memory/3440-79-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3440-2-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3440-185-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3440-186-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads