bitrat | 79f721fce9ff531d55a30dca577a8c55790d9a5b88158654e1daee60e4ed014a | Triage

Analysis

max time kernel
146s
max time network
146s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
13/03/2024, 15:20 UTC

Sharing

Report Analysis Logs

General

Target

c63582cc8c24d69e4bb0829e71f395f3.exe
Size

2.5MB
MD5

c63582cc8c24d69e4bb0829e71f395f3
SHA1

b789bcd4020aa3bd35ad11a2fbe023772b98a648
SHA256

79f721fce9ff531d55a30dca577a8c55790d9a5b88158654e1daee60e4ed014a
SHA512

170c288927099f254a16ad52155e1ebba2067bab3e8b9e771a81b9946ce3c854ff7275b74911ab8e111e32efd667bcd2359aca3effca41d59447fa57df3beaad
SSDEEP

49152:zb30Hlkz8scuXSG6sIr4ulgbRYfbSVfbpQxLK/SejMqzMgJKl:JoBuXL6sIUueFYfb0f1hMqQgUl

Score

10^/10

bitrat persistence trojan upx

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

jairoandresotalvarorend.linkpc.net:9084

Attributes

communication_password
bfdba24ee3d61f0260c4dc1034c3ee43
install_dir
winlogomdefenerec
install_file
winlogomdefenerec.exe
tor_process
tor

Signatures

BitRAT
BitRAT is a remote access tool written in C++ and uses leaked source code from other families.
trojan bitrat

UPX packed file 20 IoCs

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

resource	yara_rule
behavioral1/memory/2732-10-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2732-12-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2732-16-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2732-17-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2732-19-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2732-21-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2732-22-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2732-23-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2732-24-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2732-26-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2732-28-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2732-29-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2732-30-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2732-31-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2732-32-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2732-33-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2732-34-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2732-35-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2732-36-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2732-37-0x0000000000400000-0x00000000007E4000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlogomdefenerec = "C:\\Users\\Admin\\AppData\\Local\\winlogomdefenerec\\winlogomdefenerec.exe"	c63582cc8c24d69e4bb0829e71f395f3.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2932 set thread context of 2732	2932	c63582cc8c24d69e4bb0829e71f395f3.exe	28

Suspicious behavior: RenamesItself 21 IoCs

pid	Process
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2732	c63582cc8c24d69e4bb0829e71f395f3.exe
Token: SeShutdownPrivilege	2732	c63582cc8c24d69e4bb0829e71f395f3.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2732	c63582cc8c24d69e4bb0829e71f395f3.exe
2732	c63582cc8c24d69e4bb0829e71f395f3.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2932 wrote to memory of 2732	2932	c63582cc8c24d69e4bb0829e71f395f3.exe	28
PID 2932 wrote to memory of 2732	2932	c63582cc8c24d69e4bb0829e71f395f3.exe	28
PID 2932 wrote to memory of 2732	2932	c63582cc8c24d69e4bb0829e71f395f3.exe	28
PID 2932 wrote to memory of 2732	2932	c63582cc8c24d69e4bb0829e71f395f3.exe	28
PID 2932 wrote to memory of 2732	2932	c63582cc8c24d69e4bb0829e71f395f3.exe	28
PID 2932 wrote to memory of 2732	2932	c63582cc8c24d69e4bb0829e71f395f3.exe	28
PID 2932 wrote to memory of 2732	2932	c63582cc8c24d69e4bb0829e71f395f3.exe	28
PID 2932 wrote to memory of 2732	2932	c63582cc8c24d69e4bb0829e71f395f3.exe	28

C:\Users\Admin\AppData\Local\Temp\c63582cc8c24d69e4bb0829e71f395f3.exe
"C:\Users\Admin\AppData\Local\Temp\c63582cc8c24d69e4bb0829e71f395f3.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Users\Admin\AppData\Local\Temp\c63582cc8c24d69e4bb0829e71f395f3.exe
  "C:\Users\Admin\AppData\Local\Temp\c63582cc8c24d69e4bb0829e71f395f3.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2732

Network

DNS

jairoandresotalvarorend.linkpc.net

c63582cc8c24d69e4bb0829e71f395f3.exe

Remote address:

8.8.8.8:53

Request

jairoandresotalvarorend.linkpc.net

IN A

Response

jairoandresotalvarorend.linkpc.net

IN CNAME

linkpc.net

linkpc.net

IN A

139.99.66.103

139.99.66.103:9084

jairoandresotalvarorend.linkpc.net

c63582cc8c24d69e4bb0829e71f395f3.exe

152 B
3
139.99.66.103:9084

jairoandresotalvarorend.linkpc.net

c63582cc8c24d69e4bb0829e71f395f3.exe

152 B
3
139.99.66.103:9084

jairoandresotalvarorend.linkpc.net

c63582cc8c24d69e4bb0829e71f395f3.exe

152 B
3
139.99.66.103:9084

jairoandresotalvarorend.linkpc.net

c63582cc8c24d69e4bb0829e71f395f3.exe

104 B
2

8.8.8.8:53

jairoandresotalvarorend.linkpc.net

dns

c63582cc8c24d69e4bb0829e71f395f3.exe

80 B
110 B
1
1

DNS Request

jairoandresotalvarorend.linkpc.net

DNS Response

139.99.66.103

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Defense Evasion

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2732-28-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2732-21-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2732-37-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2732-36-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2732-35-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2732-34-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2732-33-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2732-32-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2732-8-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2732-10-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2732-12-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2732-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2732-16-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2732-31-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2732-30-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2732-17-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2732-23-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2732-22-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2732-19-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2732-24-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2732-26-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2732-29-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2932-0-0x0000000000E10000-0x000000000108E000-memory.dmp

Filesize
2.5MB

Download
memory/2932-1-0x0000000074260000-0x000000007494E000-memory.dmp

Filesize
6.9MB

Download
memory/2932-18-0x0000000074260000-0x000000007494E000-memory.dmp

Filesize
6.9MB

Download
memory/2932-7-0x000000000C660000-0x000000000C7D8000-memory.dmp

Filesize
1.5MB

Download
memory/2932-6-0x00000000070D0000-0x00000000072C0000-memory.dmp

Filesize
1.9MB

Download
memory/2932-5-0x0000000004F70000-0x0000000004FB0000-memory.dmp

Filesize
256KB

Download
memory/2932-4-0x0000000074260000-0x000000007494E000-memory.dmp

Filesize
6.9MB

Download
memory/2932-3-0x0000000000680000-0x000000000069A000-memory.dmp

Filesize
104KB

Download
memory/2932-2-0x0000000004F70000-0x0000000004FB0000-memory.dmp

Filesize
256KB

Download