bitrat | 3bdd75cf5a2b26bbf10f298f3071b2d7c7a79b33f880eb3f26c3276baceaac1f

General

Target

7.exe
Size

267KB
MD5

088ef2cfabd6e8b52832f5e358bfff6b
SHA1

4c389ccc2ac9809b315b5ba1b3d3fe3edcf9876d
SHA256

3bdd75cf5a2b26bbf10f298f3071b2d7c7a79b33f880eb3f26c3276baceaac1f
SHA512

0101392d09c48ab7d70582f267dc86d765c77161cfc34ec8cc0ff0a527a46178b4c487a0810a946caab28c4ae6d03cb7134dad0dee13e5563a53135b1c1f992c

Score

10^/10

bitrat persistence trojan upx

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

severdops.ddns.net:3071

Attributes

communication_password
29ef52e7563626a96cea7f4b4085c124
install_dir
msWORLD
install_file
excel.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
Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

4qMBcu5m4UB5qv7u.exe

pid process

512 4qMBcu5m4UB5qv7u.exe

pid	process
512	4qMBcu5m4UB5qv7u.exe

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/3988-131-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/3988-133-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/3988-134-0x0000000000400000-0x00000000007E4000-memory.dmp	upx

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

aspnet_compiler.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Windows\CurrentVersion\Run\excel = "C:\\Users\\Admin\\AppData\\Local\\msWORLD\\excel.exe\uff00"	aspnet_compiler.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Windows\CurrentVersion\Run\excel = "C:\\Users\\Admin\\AppData\\Local\\msWORLD\\excel.exe"	aspnet_compiler.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Windows\CurrentVersion\Run\excel = "C:\\Users\\Admin\\AppData\\Local\\msWORLD\\excel.exe\ue300"	aspnet_compiler.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

Processes:

aspnet_compiler.exe

pid process

3988 aspnet_compiler.exe
3988 aspnet_compiler.exe
3988 aspnet_compiler.exe
3988 aspnet_compiler.exe
3988 aspnet_compiler.exe

pid	process
3988	aspnet_compiler.exe
3988	aspnet_compiler.exe
3988	aspnet_compiler.exe
3988	aspnet_compiler.exe
3988	aspnet_compiler.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

7.exe4qMBcu5m4UB5qv7u.exe

description	pid	process	target process
PID 2688 set thread context of 2792	2688	7.exe	aspnet_compiler.exe
PID 512 set thread context of 3988	512	4qMBcu5m4UB5qv7u.exe	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

7.exe4qMBcu5m4UB5qv7u.exeaspnet_compiler.exe

description pid process

Token: SeDebugPrivilege 2688 7.exe
Token: SeDebugPrivilege 512 4qMBcu5m4UB5qv7u.exe
Token: SeShutdownPrivilege 3988 aspnet_compiler.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

aspnet_compiler.exe

pid process

3988 aspnet_compiler.exe
3988 aspnet_compiler.exe

description	pid	process
Token: SeDebugPrivilege	2688	7.exe
Token: SeDebugPrivilege	512	4qMBcu5m4UB5qv7u.exe
Token: SeShutdownPrivilege	3988	aspnet_compiler.exe

pid	process
3988	aspnet_compiler.exe
3988	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

7.exeaspnet_compiler.exe4qMBcu5m4UB5qv7u.exe

description	pid	process	target process
PID 2688 wrote to memory of 2792	2688	7.exe	aspnet_compiler.exe
PID 2688 wrote to memory of 2792	2688	7.exe	aspnet_compiler.exe
PID 2688 wrote to memory of 2792	2688	7.exe	aspnet_compiler.exe
PID 2688 wrote to memory of 2792	2688	7.exe	aspnet_compiler.exe
PID 2688 wrote to memory of 2792	2688	7.exe	aspnet_compiler.exe
PID 2688 wrote to memory of 2792	2688	7.exe	aspnet_compiler.exe
PID 2688 wrote to memory of 2792	2688	7.exe	aspnet_compiler.exe
PID 2688 wrote to memory of 2792	2688	7.exe	aspnet_compiler.exe
PID 2688 wrote to memory of 2792	2688	7.exe	aspnet_compiler.exe
PID 2688 wrote to memory of 2792	2688	7.exe	aspnet_compiler.exe
PID 2688 wrote to memory of 2792	2688	7.exe	aspnet_compiler.exe
PID 2792 wrote to memory of 512	2792	aspnet_compiler.exe	4qMBcu5m4UB5qv7u.exe
PID 2792 wrote to memory of 512	2792	aspnet_compiler.exe	4qMBcu5m4UB5qv7u.exe
PID 512 wrote to memory of 3988	512	4qMBcu5m4UB5qv7u.exe	aspnet_compiler.exe
PID 512 wrote to memory of 3988	512	4qMBcu5m4UB5qv7u.exe	aspnet_compiler.exe
PID 512 wrote to memory of 3988	512	4qMBcu5m4UB5qv7u.exe	aspnet_compiler.exe
PID 512 wrote to memory of 3988	512	4qMBcu5m4UB5qv7u.exe	aspnet_compiler.exe
PID 512 wrote to memory of 3988	512	4qMBcu5m4UB5qv7u.exe	aspnet_compiler.exe
PID 512 wrote to memory of 3988	512	4qMBcu5m4UB5qv7u.exe	aspnet_compiler.exe
PID 512 wrote to memory of 3988	512	4qMBcu5m4UB5qv7u.exe	aspnet_compiler.exe

C:\Users\Admin\AppData\Local\Temp\7.exe
"C:\Users\Admin\AppData\Local\Temp\7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2688

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2792

C:\Users\Admin\AppData\Local\Temp\4qMBcu5m4UB5qv7u.exe
"C:\Users\Admin\AppData\Local\Temp\4qMBcu5m4UB5qv7u.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:512

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
4⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3988

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\4qMBcu5m4UB5qv7u.exe
MD5
a65b75567794b4d9f2558c672bd07dd5

SHA1
e217c9fde4b32680a11adf2200e673519f595bd3

SHA256
cc7d7321cd0e93fb312ea39c0124256fa60b3335cd6632ec0e83ffb4bf2b3dc9

SHA512
4388fc585cd542df150f427b2d7b4bea03de0cd51ce634dea5935215582990b55546f3e39ae172a6c142b0b96d83a659a6b14a336a622978c5d0a9de23062ccb

Download Submit
C:\Users\Admin\AppData\Local\Temp\4qMBcu5m4UB5qv7u.exe
MD5
a65b75567794b4d9f2558c672bd07dd5

SHA1
e217c9fde4b32680a11adf2200e673519f595bd3

SHA256
cc7d7321cd0e93fb312ea39c0124256fa60b3335cd6632ec0e83ffb4bf2b3dc9

SHA512
4388fc585cd542df150f427b2d7b4bea03de0cd51ce634dea5935215582990b55546f3e39ae172a6c142b0b96d83a659a6b14a336a622978c5d0a9de23062ccb

Download Submit
memory/512-130-0x0000000000AB0000-0x0000000000ABE000-memory.dmp

Filesize
56KB

Download
memory/512-123-0x0000000000000000-mapping.dmp

Download
memory/512-129-0x000000001B2D0000-0x000000001B4BE000-memory.dmp

Filesize
1.9MB

Download
memory/512-128-0x0000000000AE0000-0x0000000000AE2000-memory.dmp

Filesize
8KB

Download
memory/512-127-0x00000000003D0000-0x00000000005C2000-memory.dmp

Filesize
1.9MB

Download
memory/512-126-0x00000000003D0000-0x00000000005C2000-memory.dmp

Filesize
1.9MB

Download
memory/2688-115-0x0000000000330000-0x0000000000374000-memory.dmp

Filesize
272KB

Download
memory/2688-117-0x000000001ADE0000-0x000000001AE20000-memory.dmp

Filesize
256KB

Download
memory/2688-116-0x0000000000330000-0x0000000000374000-memory.dmp

Filesize
272KB

Download
memory/2688-121-0x0000000002340000-0x0000000002342000-memory.dmp

Filesize
8KB

Download
memory/2688-118-0x0000000002320000-0x000000000232E000-memory.dmp

Filesize
56KB

Download
memory/2792-122-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/2792-120-0x000000000040AE9E-mapping.dmp

Download
memory/2792-119-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/3988-132-0x00000000007E2750-mapping.dmp

Download
memory/3988-131-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/3988-133-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/3988-134-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads