cycbot | 92c9f76f1bb05aea7b1f68f37d44740eb55c1b8c0985eda6a9b0125221a12ec3

General

Target

92c9f76f1bb05aea7b1f68f37d44740eb55c1b8c0985eda6a9b0125221a12ec3.exe
Size

181KB
MD5

2c5680f68e9c3629ea1847b3816a5253
SHA1

0f305bdd70b83a966fc1a94f357d2016fc63ee68
SHA256

92c9f76f1bb05aea7b1f68f37d44740eb55c1b8c0985eda6a9b0125221a12ec3
SHA512

063b03de926d31e9261a4293cec7983d657a2c3a5a4b0c2d753f4b78a62d7f93849911c5b998b41ee1afab4a52df65fe360efdfd348098c7c75bbc8a50bfe09d
SSDEEP

3072:fMyMzQw6ScvdO6gJKYpzKM/zB0E9IGOvNcbTt+vZu9MA4L9oMzy:fM+SMgJppnzKIbTt+s9MAI9oAy

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 5 IoCs

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

resource	yara_rule
behavioral2/memory/436-15-0x0000000000400000-0x0000000000454000-memory.dmp	family_cycbot
behavioral2/memory/4740-16-0x0000000000400000-0x0000000000454000-memory.dmp	family_cycbot
behavioral2/memory/4740-17-0x0000000000400000-0x0000000000452000-memory.dmp	family_cycbot
behavioral2/memory/3784-135-0x0000000000400000-0x0000000000454000-memory.dmp	family_cycbot
behavioral2/memory/4740-314-0x0000000000400000-0x0000000000454000-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/4740-3-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/436-13-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/436-15-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4740-16-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4740-17-0x0000000000400000-0x0000000000452000-memory.dmp	upx
behavioral2/memory/3784-135-0x0000000000400000-0x0000000000454000-memory.dmp	upx
behavioral2/memory/4740-314-0x0000000000400000-0x0000000000454000-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	92c9f76f1bb05aea7b1f68f37d44740eb55c1b8c0985eda6a9b0125221a12ec3.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4740 wrote to memory of 436	4740	92c9f76f1bb05aea7b1f68f37d44740eb55c1b8c0985eda6a9b0125221a12ec3.exe	82
PID 4740 wrote to memory of 436	4740	92c9f76f1bb05aea7b1f68f37d44740eb55c1b8c0985eda6a9b0125221a12ec3.exe	82
PID 4740 wrote to memory of 436	4740	92c9f76f1bb05aea7b1f68f37d44740eb55c1b8c0985eda6a9b0125221a12ec3.exe	82
PID 4740 wrote to memory of 3784	4740	92c9f76f1bb05aea7b1f68f37d44740eb55c1b8c0985eda6a9b0125221a12ec3.exe	87
PID 4740 wrote to memory of 3784	4740	92c9f76f1bb05aea7b1f68f37d44740eb55c1b8c0985eda6a9b0125221a12ec3.exe	87
PID 4740 wrote to memory of 3784	4740	92c9f76f1bb05aea7b1f68f37d44740eb55c1b8c0985eda6a9b0125221a12ec3.exe	87

C:\Users\Admin\AppData\Local\Temp\92c9f76f1bb05aea7b1f68f37d44740eb55c1b8c0985eda6a9b0125221a12ec3.exe
"C:\Users\Admin\AppData\Local\Temp\92c9f76f1bb05aea7b1f68f37d44740eb55c1b8c0985eda6a9b0125221a12ec3.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4740
- C:\Users\Admin\AppData\Local\Temp\92c9f76f1bb05aea7b1f68f37d44740eb55c1b8c0985eda6a9b0125221a12ec3.exe
  C:\Users\Admin\AppData\Local\Temp\92c9f76f1bb05aea7b1f68f37d44740eb55c1b8c0985eda6a9b0125221a12ec3.exe startC:\Program Files (x86)\LP\24BD\C25.exe%C:\Program Files (x86)\LP\24BD
  2⤵
  PID:436
- C:\Users\Admin\AppData\Local\Temp\92c9f76f1bb05aea7b1f68f37d44740eb55c1b8c0985eda6a9b0125221a12ec3.exe
  C:\Users\Admin\AppData\Local\Temp\92c9f76f1bb05aea7b1f68f37d44740eb55c1b8c0985eda6a9b0125221a12ec3.exe startC:\Users\Admin\AppData\Roaming\D55F5\FCE24.exe%C:\Users\Admin\AppData\Roaming\D55F5
  2⤵
  PID:3784

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\D55F5\5FDD.55F

Filesize
600B

MD5
6ad6e10a610c1d172923c369296539d7

SHA1
1f1f343011ad7ecb0c07cd1b968c5fa449abab80

SHA256
9e58c7c0c3b616b44454e55ae3b3a17c7616dbccf1b89c1cef03d7c75506887a

SHA512
ff9884a4f6bafd0e31ed6f007564394af52484c743a8eba9f7d934fe3c5600c071db2054ddb366f252a85c0a0da90ae8611a613c384c37cd7a7297fd012d29f2

Download Submit
C:\Users\Admin\AppData\Roaming\D55F5\5FDD.55F

Filesize
996B

MD5
684ae5bde1355853bbd6e0196ae2a216

SHA1
0ab1cd2d58605ac6425d95f6b85fce0c5acef0c4

SHA256
8a98335ea08ad4741591e040c24fc98b87e9003e24ec54d56ca0c74d64cfd9d4

SHA512
c4e1db626a8c0ee02103b8c97b96576e4a45604fe0f95b6d4def34f2ec34a63c07355b63091d4e79c094b6598a2f9a880d973e69c25e57e96c739c787408ea77

Download Submit
C:\Users\Admin\AppData\Roaming\D55F5\5FDD.55F

Filesize
1KB

MD5
368d26dc37a04755810395771d94fdf1

SHA1
7fdee50ae60386bb30954e098bb43f032b5895b5

SHA256
69f80f8d45c300b6dbe03755b16a9d5fe8aadbee458c164adc89b7cb0df57091

SHA512
03c0358364c4d19f7da31952aecae4a877471c7c314c45e023f9b517b77b5b4459b2d65be2832c4e8ca66d24e639c650ba2aab687170c9fd03634d27bf31b2f6

Download Submit
memory/436-13-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/436-15-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/3784-135-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4740-0-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4740-2-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/4740-3-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4740-16-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download
memory/4740-17-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/4740-314-0x0000000000400000-0x0000000000454000-memory.dmp

Filesize
336KB

Download

Analysis

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