cycbot | 257ecc779d14a601ec0815b0c033137c9cbe4a450385c0bbdc989549cb41a76b

General

Target

JaffaCakes118_0c0d20280c10e0d9974a125903dfceb3.exe
Size

164KB
MD5

0c0d20280c10e0d9974a125903dfceb3
SHA1

a92aba188f4d5500230d9789e17189d6b389d904
SHA256

257ecc779d14a601ec0815b0c033137c9cbe4a450385c0bbdc989549cb41a76b
SHA512

880e11c0a2b3d29638a2d5caef6cef631044a74ba86f46b62f56102fba9942c697c44eec8c5e2bfc11d8a81cd4f0563d6e103445322d908055454a3328b7ea66
SSDEEP

3072:uJFzJVA/H2HlLiPxewbim34iXRSG+sZZDb5f/0T133NV9K1FmH:K1JO/WQdbim3bScZt/g33NnK

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/4648-17-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/4308-19-0x0000000000400000-0x000000000048E000-memory.dmp	family_cycbot
behavioral2/memory/4308-20-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/4308-140-0x0000000000400000-0x0000000000490000-memory.dmp	family_cycbot
behavioral2/memory/4308-310-0x0000000000400000-0x0000000000490000-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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\96EAD\\58F2D.exe"	JaffaCakes118_0c0d20280c10e0d9974a125903dfceb3.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4308-4-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4648-16-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4648-17-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4308-19-0x0000000000400000-0x000000000048E000-memory.dmp	upx
behavioral2/memory/4308-20-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4308-140-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/4308-310-0x0000000000400000-0x0000000000490000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3136	448	WerFault.exe	99

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	JaffaCakes118_0c0d20280c10e0d9974a125903dfceb3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0c0d20280c10e0d9974a125903dfceb3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0c0d20280c10e0d9974a125903dfceb3.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4308 wrote to memory of 4648	4308	JaffaCakes118_0c0d20280c10e0d9974a125903dfceb3.exe	84
PID 4308 wrote to memory of 4648	4308	JaffaCakes118_0c0d20280c10e0d9974a125903dfceb3.exe	84
PID 4308 wrote to memory of 4648	4308	JaffaCakes118_0c0d20280c10e0d9974a125903dfceb3.exe	84
PID 4308 wrote to memory of 448	4308	JaffaCakes118_0c0d20280c10e0d9974a125903dfceb3.exe	99
PID 4308 wrote to memory of 448	4308	JaffaCakes118_0c0d20280c10e0d9974a125903dfceb3.exe	99
PID 4308 wrote to memory of 448	4308	JaffaCakes118_0c0d20280c10e0d9974a125903dfceb3.exe	99

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0c0d20280c10e0d9974a125903dfceb3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0c0d20280c10e0d9974a125903dfceb3.exe"
1⤵
- Modifies WinLogon for persistence
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4308
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0c0d20280c10e0d9974a125903dfceb3.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0c0d20280c10e0d9974a125903dfceb3.exe startC:\Program Files (x86)\LP\2D99\7CD.exe%C:\Program Files (x86)\LP\2D99
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4648
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0c0d20280c10e0d9974a125903dfceb3.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0c0d20280c10e0d9974a125903dfceb3.exe startC:\Program Files (x86)\AD3A0\lvvm.exe%C:\Program Files (x86)\AD3A0
  2⤵
  - System Location Discovery: System Language Discovery
  PID:448
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 448 -s 440
    3⤵
    - Program crash
    PID:3136

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 448 -ip 448
1⤵
PID:4824

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\96EAD\D3A0.6EA

Filesize
600B

MD5
8f814ab489497cd840d468eb8944ac43

SHA1
37c2751ccfb4f5a20fc7bfccbf2d06fa488e33e5

SHA256
1ae2caf104d61c597d0f71e34d39271ce112ca8bb01f6ff0c0d0e527d09a48a0

SHA512
da809bb55d15860cd8895fa41b4dd264df957d2182d8be902bb1e74e39c6b1c533fc242652b5e600bdf48226628fb1917d237c141c1b1b1e470c106a3a9703fb

Download Submit
C:\Users\Admin\AppData\Roaming\96EAD\D3A0.6EA

Filesize
996B

MD5
c1ac65539d2228493448f1fc6f3f85e2

SHA1
1c1fdc01ce14dd4ead9b218f79fdeca835638fe7

SHA256
35e3aa5234100a668d770a7397dfa5f3da7ca70ee243351aba91f24c867bba2f

SHA512
7161598a579f54803e381857f628bcaf5df25ee4e0ed30bd982333cd966573afe7aa13eda5dd810624d6de564c8e1b7fb79a6dcf834e5171c030cb0c846586b9

Download Submit
C:\Users\Admin\AppData\Roaming\96EAD\D3A0.6EA

Filesize
1KB

MD5
7fd405badbf156d78a51e189db5694c1

SHA1
bbb4598fc795a30a33471049eff83474934744fa

SHA256
f4abaf1f1f7cc3125199e50632a8d06a59570cba247844fb2207e13a98f2765f

SHA512
8cd2d09297b4c33d54bb50b67cd2add542e92bfba86c25cb81841da778b86fa28072cf62be9f6d1f0cd8c7522765cbf268406f519edf8da0cdc316ff1e896a6a

Download Submit
memory/448-139-0x0000000075700000-0x0000000075739000-memory.dmp

Filesize
228KB

Download
memory/448-137-0x0000000075700000-0x0000000075739000-memory.dmp

Filesize
228KB

Download
memory/4308-140-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4308-19-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/4308-20-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4308-0-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4308-4-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4308-3-0x0000000000400000-0x000000000048E000-memory.dmp

Filesize
568KB

Download
memory/4308-1-0x0000000075700000-0x0000000075739000-memory.dmp

Filesize
228KB

Download
memory/4308-310-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4308-311-0x0000000075700000-0x0000000075739000-memory.dmp

Filesize
228KB

Download
memory/4648-16-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4648-17-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4648-18-0x0000000075700000-0x0000000075739000-memory.dmp

Filesize
228KB

Download
memory/4648-14-0x0000000075700000-0x0000000075739000-memory.dmp

Filesize
228KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads