bitrat | a2e53e31a6d4e81b4df4572ff9d41278b8c48c2387ba84075ae58f3d10c4884b

General

Target

RKS7D5D6F_ETRANSFER_RECEIPT.exe
Size

300.0MB
MD5

7298a9ef42c45144a0caab46893fc9e3
SHA1

809492d6628db6cb0af75ceb861ca209079029af
SHA256

cd4000e6ed2eeeb0af7509cc6c74ea8d2ef08d5d6f6551aeebad6a96de57d7cd
SHA512

ac95e369ed001e74b5c32cb94ac109f3b7c76b9c9dd82fd92c0569682589ccd94521599a7b03921a633c4668905a73ba87c9c7d5e31935d047f61c1284dd4459

Score

10^/10

bitrat suricata trojan upx

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

bitrat9300.duckdns.org:9300

Attributes

communication_password
e10adc3949ba59abbe56e057f20f883e
tor_process
tor

Signatures

BitRAT
BitRAT is a remote access tool written in C++ and uses leaked source code from other families.
trojan bitrat
suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)
suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)
suricata
Executes dropped EXE 2 IoCs

Processes:

nhbyg.exenhbyg.exe

pid process

2840 nhbyg.exe
936 nhbyg.exe

pid	process
2840	nhbyg.exe
936	nhbyg.exe

UPX packed file 8 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4316-138-0x0000000000610000-0x00000000009F4000-memory.dmp	upx
behavioral2/memory/4316-137-0x0000000000610000-0x00000000009F4000-memory.dmp	upx
behavioral2/memory/4060-145-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4060-146-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4060-147-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4060-148-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4060-149-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4060-152-0x0000000000400000-0x00000000007E4000-memory.dmp	upx

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

Processes:

RegAsm.exe

pid process

4060 RegAsm.exe
4060 RegAsm.exe
4060 RegAsm.exe
4060 RegAsm.exe
4060 RegAsm.exe

pid	process
4060	RegAsm.exe
4060	RegAsm.exe
4060	RegAsm.exe
4060	RegAsm.exe
4060	RegAsm.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

RKS7D5D6F_ETRANSFER_RECEIPT.exenhbyg.exe

description	pid	process	target process
PID 880 set thread context of 4316	880	RKS7D5D6F_ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 2840 set thread context of 4060	2840	nhbyg.exe	RegAsm.exe

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

1360 4316 WerFault.exe RegAsm.exe
4680 4316 WerFault.exe RegAsm.exe
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

3568 schtasks.exe
520 schtasks.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeShutdownPrivilege 4060 RegAsm.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

RegAsm.exe

pid process

4060 RegAsm.exe
4060 RegAsm.exe

pid	pid_target	process	target process
1360	4316	WerFault.exe	RegAsm.exe
4680	4316	WerFault.exe	RegAsm.exe

pid	process
3568	schtasks.exe
520	schtasks.exe

description	pid	process
Token: SeShutdownPrivilege	4060	RegAsm.exe

pid	process
4060	RegAsm.exe
4060	RegAsm.exe

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

RKS7D5D6F_ETRANSFER_RECEIPT.execmd.exenhbyg.execmd.exe

description	pid	process	target process
PID 880 wrote to memory of 1912	880	RKS7D5D6F_ETRANSFER_RECEIPT.exe	cmd.exe
PID 880 wrote to memory of 1912	880	RKS7D5D6F_ETRANSFER_RECEIPT.exe	cmd.exe
PID 880 wrote to memory of 1912	880	RKS7D5D6F_ETRANSFER_RECEIPT.exe	cmd.exe
PID 1912 wrote to memory of 3568	1912	cmd.exe	schtasks.exe
PID 1912 wrote to memory of 3568	1912	cmd.exe	schtasks.exe
PID 1912 wrote to memory of 3568	1912	cmd.exe	schtasks.exe
PID 880 wrote to memory of 3388	880	RKS7D5D6F_ETRANSFER_RECEIPT.exe	cmd.exe
PID 880 wrote to memory of 3388	880	RKS7D5D6F_ETRANSFER_RECEIPT.exe	cmd.exe
PID 880 wrote to memory of 3388	880	RKS7D5D6F_ETRANSFER_RECEIPT.exe	cmd.exe
PID 880 wrote to memory of 4316	880	RKS7D5D6F_ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 880 wrote to memory of 4316	880	RKS7D5D6F_ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 880 wrote to memory of 4316	880	RKS7D5D6F_ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 880 wrote to memory of 4316	880	RKS7D5D6F_ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 880 wrote to memory of 4316	880	RKS7D5D6F_ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 880 wrote to memory of 4316	880	RKS7D5D6F_ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 880 wrote to memory of 4316	880	RKS7D5D6F_ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 2840 wrote to memory of 1732	2840	nhbyg.exe	cmd.exe
PID 2840 wrote to memory of 1732	2840	nhbyg.exe	cmd.exe
PID 2840 wrote to memory of 1732	2840	nhbyg.exe	cmd.exe
PID 1732 wrote to memory of 520	1732	cmd.exe	schtasks.exe
PID 1732 wrote to memory of 520	1732	cmd.exe	schtasks.exe
PID 1732 wrote to memory of 520	1732	cmd.exe	schtasks.exe
PID 2840 wrote to memory of 1304	2840	nhbyg.exe	cmd.exe
PID 2840 wrote to memory of 1304	2840	nhbyg.exe	cmd.exe
PID 2840 wrote to memory of 1304	2840	nhbyg.exe	cmd.exe
PID 2840 wrote to memory of 4060	2840	nhbyg.exe	RegAsm.exe
PID 2840 wrote to memory of 4060	2840	nhbyg.exe	RegAsm.exe
PID 2840 wrote to memory of 4060	2840	nhbyg.exe	RegAsm.exe
PID 2840 wrote to memory of 4060	2840	nhbyg.exe	RegAsm.exe
PID 2840 wrote to memory of 4060	2840	nhbyg.exe	RegAsm.exe
PID 2840 wrote to memory of 4060	2840	nhbyg.exe	RegAsm.exe
PID 2840 wrote to memory of 4060	2840	nhbyg.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\RKS7D5D6F_ETRANSFER_RECEIPT.exe
"C:\Users\Admin\AppData\Local\Temp\RKS7D5D6F_ETRANSFER_RECEIPT.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:880

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafdnasia" /tr "'C:\Users\Admin\AppData\Roaming\nhbyg.exe'" /f
2⤵
- Suspicious use of WriteProcessMemory
PID:1912

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /sc minute /mo 1 /tn "Nafdnasia" /tr "'C:\Users\Admin\AppData\Roaming\nhbyg.exe'" /f
3⤵
- Creates scheduled task(s)
PID:3568

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C copy "C:\Users\Admin\AppData\Local\Temp\RKS7D5D6F_ETRANSFER_RECEIPT.exe" "C:\Users\Admin\AppData\Roaming\nhbyg.exe"
2⤵
PID:3388

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
PID:4316

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4316 -s 536
3⤵
- Program crash
PID:1360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4316 -s 540
3⤵
- Program crash
PID:4680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4316 -ip 4316
1⤵
PID:4852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4316 -ip 4316
1⤵
PID:2640

C:\Users\Admin\AppData\Roaming\nhbyg.exe
C:\Users\Admin\AppData\Roaming\nhbyg.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2840

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafdnasia" /tr "'C:\Users\Admin\AppData\Roaming\nhbyg.exe'" /f
2⤵
- Suspicious use of WriteProcessMemory
PID:1732

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /sc minute /mo 1 /tn "Nafdnasia" /tr "'C:\Users\Admin\AppData\Roaming\nhbyg.exe'" /f
3⤵
- Creates scheduled task(s)
PID:520

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C copy "C:\Users\Admin\AppData\Roaming\nhbyg.exe" "C:\Users\Admin\AppData\Roaming\nhbyg.exe"
2⤵
PID:1304

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4060

C:\Users\Admin\AppData\Roaming\nhbyg.exe
C:\Users\Admin\AppData\Roaming\nhbyg.exe
1⤵
- Executes dropped EXE
PID:936

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\nhbyg.exe.log
Filesize
520B

MD5
41c37de2b4598f7759f865817dba5f80

SHA1
884ccf344bc2dd409425dc5ace0fd909a5f8cce4

SHA256
427235491a8da3fc8770ed60d30af731835c94585cd08d4d81fca9f703b283bc

SHA512
a8f3c74916623de100e4cf22e05df9cdf541b1e32443aab0434f35fb9c4a7fa950b997ce589b532e65731ae471a1f152cd5c00ea1df4bd7a6b57eb27c93c54bd

Download Submit
C:\Users\Admin\AppData\Roaming\nhbyg.exe
Filesize
300.0MB

MD5
7298a9ef42c45144a0caab46893fc9e3

SHA1
809492d6628db6cb0af75ceb861ca209079029af

SHA256
cd4000e6ed2eeeb0af7509cc6c74ea8d2ef08d5d6f6551aeebad6a96de57d7cd

SHA512
ac95e369ed001e74b5c32cb94ac109f3b7c76b9c9dd82fd92c0569682589ccd94521599a7b03921a633c4668905a73ba87c9c7d5e31935d047f61c1284dd4459

Download Submit
C:\Users\Admin\AppData\Roaming\nhbyg.exe
Filesize
300.0MB

MD5
7298a9ef42c45144a0caab46893fc9e3

SHA1
809492d6628db6cb0af75ceb861ca209079029af

SHA256
cd4000e6ed2eeeb0af7509cc6c74ea8d2ef08d5d6f6551aeebad6a96de57d7cd

SHA512
ac95e369ed001e74b5c32cb94ac109f3b7c76b9c9dd82fd92c0569682589ccd94521599a7b03921a633c4668905a73ba87c9c7d5e31935d047f61c1284dd4459

Download Submit
C:\Users\Admin\AppData\Roaming\nhbyg.exe
Filesize
178.9MB

MD5
f808580d25c2b7be6cc1eeded41fa089

SHA1
469a536ec985b22bb2d619409e5372044e934f13

SHA256
70cfbc21b846a3cc272bdef136f832aa6d5376335d099f12d6e0091eed89c259

SHA512
f135eb05f47d445c0af10a0c8f095c367f339ed2255dbe5a34c1841a4957a497df571b86d157a44cf93437c816b9bea04aa676a32df98dcf59840a3631b37968

Download Submit
memory/520-142-0x0000000000000000-mapping.dmp

Download
memory/880-133-0x00000000063B0000-0x0000000006954000-memory.dmp

Filesize
5.6MB

Download
memory/880-130-0x0000000000DA0000-0x0000000000F34000-memory.dmp

Filesize
1.6MB

Download
memory/1304-143-0x0000000000000000-mapping.dmp

Download
memory/1732-141-0x0000000000000000-mapping.dmp

Download
memory/1912-131-0x0000000000000000-mapping.dmp

Download
memory/3388-134-0x0000000000000000-mapping.dmp

Download
memory/3568-132-0x0000000000000000-mapping.dmp

Download
memory/4060-149-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/4060-144-0x0000000000000000-mapping.dmp

Download
memory/4060-145-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/4060-146-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/4060-147-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/4060-148-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/4060-150-0x0000000074BF0000-0x0000000074C29000-memory.dmp

Filesize
228KB

Download
memory/4060-151-0x0000000074F90000-0x0000000074FC9000-memory.dmp

Filesize
228KB

Download
memory/4060-152-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/4316-137-0x0000000000610000-0x00000000009F4000-memory.dmp

Filesize
3.9MB

Download
memory/4316-138-0x0000000000610000-0x00000000009F4000-memory.dmp

Filesize
3.9MB

Download
memory/4316-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads