cycbot | 28ba9c5739e19baf5dc58f5ce8669bc18786865c476565430e29d55474d23973

General

Target

JaffaCakes118_04450caf764bd461dcd0ccb198c1b55d.exe
Size

187KB
MD5

04450caf764bd461dcd0ccb198c1b55d
SHA1

15366f466350b8b98dade6488e3b5a9f0214aa79
SHA256

28ba9c5739e19baf5dc58f5ce8669bc18786865c476565430e29d55474d23973
SHA512

8d0c6919444303accbc3891c073d19503c4c3ecadf2527e83ac14b1d6563d5324c2886b3de0263eb1ef2f0964568e0caaefea9ad7fbb2e65bbf44bf16e03866c
SSDEEP

3072:yAuWzkD8lxQzuXPO5zdtVXvWKGUp3pyQX1yCMFrxjIW8Q+WhdakYleB6hYM5zCrd:NhkobQzuX2lfV/WOp34QjMPsW+SdakYa

Score

10^/10

cycbot backdoor discovery rat upx

Malware Config

Signatures

Cycbot
Cycbot is a backdoor and trojan written in C++..
backdoor rat cycbot
Cycbot family
cycbot

Detects Cycbot payload 4 IoCs

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

resource	yara_rule
behavioral2/memory/452-14-0x0000000000400000-0x0000000000471000-memory.dmp	family_cycbot
behavioral2/memory/1896-15-0x0000000000400000-0x0000000000471000-memory.dmp	family_cycbot
behavioral2/memory/1896-180-0x0000000000400000-0x0000000000471000-memory.dmp	family_cycbot
behavioral2/memory/1896-182-0x0000000000400000-0x0000000000471000-memory.dmp	family_cycbot

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1896-1-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral2/memory/452-12-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral2/memory/452-14-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral2/memory/452-11-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral2/memory/1896-15-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral2/memory/1896-180-0x0000000000400000-0x0000000000471000-memory.dmp	upx
behavioral2/memory/1896-182-0x0000000000400000-0x0000000000471000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3408	1848	WerFault.exe	84

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_04450caf764bd461dcd0ccb198c1b55d.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1896 wrote to memory of 452	1896	JaffaCakes118_04450caf764bd461dcd0ccb198c1b55d.exe	83
PID 1896 wrote to memory of 452	1896	JaffaCakes118_04450caf764bd461dcd0ccb198c1b55d.exe	83
PID 1896 wrote to memory of 452	1896	JaffaCakes118_04450caf764bd461dcd0ccb198c1b55d.exe	83
PID 1896 wrote to memory of 1848	1896	JaffaCakes118_04450caf764bd461dcd0ccb198c1b55d.exe	84
PID 1896 wrote to memory of 1848	1896	JaffaCakes118_04450caf764bd461dcd0ccb198c1b55d.exe	84
PID 1896 wrote to memory of 1848	1896	JaffaCakes118_04450caf764bd461dcd0ccb198c1b55d.exe	84

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04450caf764bd461dcd0ccb198c1b55d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04450caf764bd461dcd0ccb198c1b55d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1896
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04450caf764bd461dcd0ccb198c1b55d.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04450caf764bd461dcd0ccb198c1b55d.exe startC:\Users\Admin\AppData\Roaming\Microsoft\conhost.exe%C:\Users\Admin\AppData\Roaming\Microsoft
  2⤵
  PID:452
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04450caf764bd461dcd0ccb198c1b55d.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04450caf764bd461dcd0ccb198c1b55d.exe startC:\Users\Admin\AppData\Roaming\dwm.exe%C:\Users\Admin\AppData\Roaming
  2⤵
  PID:1848
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1848 -s 416
    3⤵
    - Program crash
    PID:3408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1848 -ip 1848
1⤵
PID:1940

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\F3CF.03D

Filesize
1KB

MD5
f70cd89d9993e9de3182e28855d83b47

SHA1
610fcdf753305f2d9ad2232977897dae1be72d99

SHA256
163dbfeda320d4a0bf98ae225b69148ab5073c336033a3cc37c1a30e31eaddf1

SHA512
4489519655056e7fa4ca8a3a7951ab34d5c5a224d9821aa7532fc8b25e00ea645f52eaf17ddad8131a832be59a302210ad5d953446cf95e46273a62fd6ced1f0

Download Submit
C:\Users\Admin\AppData\Roaming\F3CF.03D

Filesize
600B

MD5
36e008baa9abc082a2898d5b73f5ea49

SHA1
9f9122c254404c974e7307f66e99dd0b4de472bc

SHA256
56bfb608fa6c1a5dfac1a10985690443a01c9a7c4756629346076fd542f89211

SHA512
b2efa33724d6814c7642334e921a24ed9d9439883cdb1afb4d0530235bebacc84e425f9a9cac76084c882c55d4b9019b07c5fd2743bd892a3a57bdf81dd43dd4

Download Submit
C:\Users\Admin\AppData\Roaming\F3CF.03D

Filesize
996B

MD5
1c170011e46fe408eaa2905fb6adba58

SHA1
8e3f07b06b6565a744b32809006876543c7385d0

SHA256
b929ee7ed48e77b7c55af915655c1f35490270a7f97ce9dc0f41795e788cc0b6

SHA512
2d07d04b0eb71a0fadc2f41cfbaae0bde8cce79720fd2e0694f84a4342014e646fed8d97d9118279a5b3e2b14a2833c47cec8e7f5a92b7bf896f9611154ac6ec

Download Submit
memory/452-12-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/452-14-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/452-11-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1848-76-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1896-1-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1896-15-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1896-180-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download
memory/1896-182-0x0000000000400000-0x0000000000471000-memory.dmp

Filesize
452KB

Download

Analysis

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