cycbot | 2a4f139ae32411cde4e425548e11e4a46776d293e20d00419294d1c01b99660e

General

Target

JaffaCakes118_4a2382be6137670d049e1832d46270ce.exe
Size

164KB
MD5

4a2382be6137670d049e1832d46270ce
SHA1

3d9d2e8d8fe8c3e34e3cddb30041f23accc51957
SHA256

2a4f139ae32411cde4e425548e11e4a46776d293e20d00419294d1c01b99660e
SHA512

84b34fd76511889b218762fce24f62c6e889f48847c43098482dcb13bf47e26db89eaf1f6b82620d74fbcc9073ca813582e6d77ce8d3f12986ef09754996388e
SSDEEP

3072:3EGqYpw1b88tkrBTdCi387r4msKitgYCh+LuBwwolI56:3y1w8tQCGCr4m7H+DI5

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 6 IoCs

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

resource	yara_rule
behavioral2/memory/3920-14-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/532-16-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/532-15-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/3620-127-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/532-128-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/532-298-0x0000000000400000-0x0000000000490000-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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\96C72\\BAF6A.exe"	JaffaCakes118_4a2382be6137670d049e1832d46270ce.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/532-2-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3920-13-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3920-14-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/532-16-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/532-15-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3620-125-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/3620-127-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/532-128-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/532-298-0x0000000000400000-0x0000000000490000-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	JaffaCakes118_4a2382be6137670d049e1832d46270ce.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 532 wrote to memory of 3920	532	JaffaCakes118_4a2382be6137670d049e1832d46270ce.exe	83
PID 532 wrote to memory of 3920	532	JaffaCakes118_4a2382be6137670d049e1832d46270ce.exe	83
PID 532 wrote to memory of 3920	532	JaffaCakes118_4a2382be6137670d049e1832d46270ce.exe	83
PID 532 wrote to memory of 3620	532	JaffaCakes118_4a2382be6137670d049e1832d46270ce.exe	98
PID 532 wrote to memory of 3620	532	JaffaCakes118_4a2382be6137670d049e1832d46270ce.exe	98
PID 532 wrote to memory of 3620	532	JaffaCakes118_4a2382be6137670d049e1832d46270ce.exe	98

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4a2382be6137670d049e1832d46270ce.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4a2382be6137670d049e1832d46270ce.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:532
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4a2382be6137670d049e1832d46270ce.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4a2382be6137670d049e1832d46270ce.exe startC:\Program Files (x86)\LP\6A39\222.exe%C:\Program Files (x86)\LP\6A39
  2⤵
  PID:3920
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4a2382be6137670d049e1832d46270ce.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4a2382be6137670d049e1832d46270ce.exe startC:\Program Files (x86)\72132\lvvm.exe%C:\Program Files (x86)\72132
  2⤵
  PID:3620

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\96C72\2132.6C7

Filesize
996B

MD5
570132ddcceec7a63a16498feca4d598

SHA1
2d1c262bffb270436b7c44025b35f8bf461e0c8b

SHA256
3f7d581062c8cf38aafb14b18f0dd48a5105b5155cccaeefb755742b2eac022a

SHA512
f60d4dc06fdc3a2475e8f90f8c35440f4fd226d6209dd9a43195f1798055f88bc564f42ca991bb57a1ad8f945b3b5d45de399f418129207b742f8662f94a64dd

Download Submit
C:\Users\Admin\AppData\Roaming\96C72\2132.6C7

Filesize
600B

MD5
525b7ec5f7a9cf1204d469c2cbefc938

SHA1
3c2169dd72c15d9cb97e620f64a6834140f3d693

SHA256
4cdc0e4dd7698f7dae0f61850b59d79b0ed493a87be904eb8d82d21c66734ed9

SHA512
2981f611786d85cb4242a37db3da6005ac12eca6b8971cac7e209a86fdc5d35d3e1fdceaba8535be0e48148dd7ac7124d4f14365a37edfdb25e040a56fed2d11

Download Submit
C:\Users\Admin\AppData\Roaming\96C72\2132.6C7

Filesize
1KB

MD5
35c503d8167c938a8886ec6d5eed3ffd

SHA1
2ec1b4298eb7addef020a86727231f27ae70de53

SHA256
1b3b96ea5284926cee6332e7a3df0c7b91ca3d79a7ec00fce441da1250d10cbd

SHA512
c44d6231f7561da35922aa873eb5ab629162dc8a0368686fffe0ed07d632a5088b7b0dcd1a05ad9e3eaa32be2106055258fa8181204548f753264a98f2a65907

Download Submit
memory/532-1-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/532-2-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/532-298-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/532-16-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/532-15-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/532-128-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3620-127-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3620-125-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3920-14-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3920-13-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/3920-12-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads