bitrat | d45b7cb0d3670b2d8a0191ddb50c96346c69ce3635d7e187270652b1c6398547

General

Target

C8D6C4G3_ETRANSFER_RECEIPT.exe
Size

300.0MB
MD5

bfabfe78aa78696e50b54618f8b828e6
SHA1

10444cddc6fd263a1b4a3ee8fa477a3a1e673f81
SHA256

5d40878b671c96e0c31b04b38d416c808fe231b1eaade5b4e1bdf5345b371a2b
SHA512

75b739af5a7a84b740175bdb0d95a6c91ff38f6c52aacfaf82f61da2edb491bbf38494a21f09a83706509d7bdf1bcaaa14707bb61dcc1f32e7bc73fa8033a3b5

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 3 IoCs

Processes:

retwvs.exeretwvs.exeretwvs.exe

pid process

1820 retwvs.exe
1848 retwvs.exe
3960 retwvs.exe

pid	process
1820	retwvs.exe
1848	retwvs.exe
3960	retwvs.exe

UPX packed file 8 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/3628-136-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/3628-139-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/3628-138-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/3628-137-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/3628-140-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/3628-143-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/1848-152-0x0000000000A10000-0x0000000000DF4000-memory.dmp	upx
behavioral2/memory/1848-153-0x0000000000A10000-0x0000000000DF4000-memory.dmp	upx

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

Processes:

C8D6C4G3_ETRANSFER_RECEIPT.exe

pid	process
3628	C8D6C4G3_ETRANSFER_RECEIPT.exe
3628	C8D6C4G3_ETRANSFER_RECEIPT.exe
3628	C8D6C4G3_ETRANSFER_RECEIPT.exe
3628	C8D6C4G3_ETRANSFER_RECEIPT.exe
3628	C8D6C4G3_ETRANSFER_RECEIPT.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

C8D6C4G3_ETRANSFER_RECEIPT.exeretwvs.exe

description	pid	process	target process
PID 1048 set thread context of 3628	1048	C8D6C4G3_ETRANSFER_RECEIPT.exe	C8D6C4G3_ETRANSFER_RECEIPT.exe
PID 1820 set thread context of 1848	1820	retwvs.exe	retwvs.exe

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

1356 1848 WerFault.exe retwvs.exe
3724 1848 WerFault.exe retwvs.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

2676 schtasks.exe
3756 schtasks.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

C8D6C4G3_ETRANSFER_RECEIPT.exe

description pid process

Token: SeShutdownPrivilege 3628 C8D6C4G3_ETRANSFER_RECEIPT.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

C8D6C4G3_ETRANSFER_RECEIPT.exe

pid process

3628 C8D6C4G3_ETRANSFER_RECEIPT.exe
3628 C8D6C4G3_ETRANSFER_RECEIPT.exe

pid	pid_target	process	target process
1356	1848	WerFault.exe	retwvs.exe
3724	1848	WerFault.exe	retwvs.exe

pid	process
2676	schtasks.exe
3756	schtasks.exe

description	pid	process
Token: SeShutdownPrivilege	3628	C8D6C4G3_ETRANSFER_RECEIPT.exe

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

C8D6C4G3_ETRANSFER_RECEIPT.execmd.exeretwvs.execmd.exe

description	pid	process	target process
PID 1048 wrote to memory of 212	1048	C8D6C4G3_ETRANSFER_RECEIPT.exe	cmd.exe
PID 1048 wrote to memory of 212	1048	C8D6C4G3_ETRANSFER_RECEIPT.exe	cmd.exe
PID 1048 wrote to memory of 212	1048	C8D6C4G3_ETRANSFER_RECEIPT.exe	cmd.exe
PID 212 wrote to memory of 2676	212	cmd.exe	schtasks.exe
PID 212 wrote to memory of 2676	212	cmd.exe	schtasks.exe
PID 212 wrote to memory of 2676	212	cmd.exe	schtasks.exe
PID 1048 wrote to memory of 4136	1048	C8D6C4G3_ETRANSFER_RECEIPT.exe	cmd.exe
PID 1048 wrote to memory of 4136	1048	C8D6C4G3_ETRANSFER_RECEIPT.exe	cmd.exe
PID 1048 wrote to memory of 4136	1048	C8D6C4G3_ETRANSFER_RECEIPT.exe	cmd.exe
PID 1048 wrote to memory of 3628	1048	C8D6C4G3_ETRANSFER_RECEIPT.exe	C8D6C4G3_ETRANSFER_RECEIPT.exe
PID 1048 wrote to memory of 3628	1048	C8D6C4G3_ETRANSFER_RECEIPT.exe	C8D6C4G3_ETRANSFER_RECEIPT.exe
PID 1048 wrote to memory of 3628	1048	C8D6C4G3_ETRANSFER_RECEIPT.exe	C8D6C4G3_ETRANSFER_RECEIPT.exe
PID 1048 wrote to memory of 3628	1048	C8D6C4G3_ETRANSFER_RECEIPT.exe	C8D6C4G3_ETRANSFER_RECEIPT.exe
PID 1048 wrote to memory of 3628	1048	C8D6C4G3_ETRANSFER_RECEIPT.exe	C8D6C4G3_ETRANSFER_RECEIPT.exe
PID 1048 wrote to memory of 3628	1048	C8D6C4G3_ETRANSFER_RECEIPT.exe	C8D6C4G3_ETRANSFER_RECEIPT.exe
PID 1048 wrote to memory of 3628	1048	C8D6C4G3_ETRANSFER_RECEIPT.exe	C8D6C4G3_ETRANSFER_RECEIPT.exe
PID 1820 wrote to memory of 4232	1820	retwvs.exe	cmd.exe
PID 1820 wrote to memory of 4232	1820	retwvs.exe	cmd.exe
PID 1820 wrote to memory of 4232	1820	retwvs.exe	cmd.exe
PID 4232 wrote to memory of 3756	4232	cmd.exe	schtasks.exe
PID 4232 wrote to memory of 3756	4232	cmd.exe	schtasks.exe
PID 4232 wrote to memory of 3756	4232	cmd.exe	schtasks.exe
PID 1820 wrote to memory of 1936	1820	retwvs.exe	cmd.exe
PID 1820 wrote to memory of 1936	1820	retwvs.exe	cmd.exe
PID 1820 wrote to memory of 1936	1820	retwvs.exe	cmd.exe
PID 1820 wrote to memory of 1848	1820	retwvs.exe	retwvs.exe
PID 1820 wrote to memory of 1848	1820	retwvs.exe	retwvs.exe
PID 1820 wrote to memory of 1848	1820	retwvs.exe	retwvs.exe
PID 1820 wrote to memory of 1848	1820	retwvs.exe	retwvs.exe
PID 1820 wrote to memory of 1848	1820	retwvs.exe	retwvs.exe
PID 1820 wrote to memory of 1848	1820	retwvs.exe	retwvs.exe
PID 1820 wrote to memory of 1848	1820	retwvs.exe	retwvs.exe

C:\Users\Admin\AppData\Local\Temp\C8D6C4G3_ETRANSFER_RECEIPT.exe
"C:\Users\Admin\AppData\Local\Temp\C8D6C4G3_ETRANSFER_RECEIPT.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1048

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafdnasia" /tr "'C:\Users\Admin\AppData\Roaming\retwvs.exe'" /f
2⤵
- Suspicious use of WriteProcessMemory
PID:212

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /sc minute /mo 1 /tn "Nafdnasia" /tr "'C:\Users\Admin\AppData\Roaming\retwvs.exe'" /f
3⤵
- Creates scheduled task(s)
PID:2676

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C copy "C:\Users\Admin\AppData\Local\Temp\C8D6C4G3_ETRANSFER_RECEIPT.exe" "C:\Users\Admin\AppData\Roaming\retwvs.exe"
2⤵
PID:4136

C:\Users\Admin\AppData\Local\Temp\C8D6C4G3_ETRANSFER_RECEIPT.exe
"C:\Users\Admin\AppData\Local\Temp\C8D6C4G3_ETRANSFER_RECEIPT.exe"
2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3628

C:\Users\Admin\AppData\Roaming\retwvs.exe
C:\Users\Admin\AppData\Roaming\retwvs.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1820

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafdnasia" /tr "'C:\Users\Admin\AppData\Roaming\retwvs.exe'" /f
2⤵
- Suspicious use of WriteProcessMemory
PID:4232

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /sc minute /mo 1 /tn "Nafdnasia" /tr "'C:\Users\Admin\AppData\Roaming\retwvs.exe'" /f
3⤵
- Creates scheduled task(s)
PID:3756

C:\Windows\SysWOW64\cmd.exe
"cmd.exe" /C copy "C:\Users\Admin\AppData\Roaming\retwvs.exe" "C:\Users\Admin\AppData\Roaming\retwvs.exe"
2⤵
PID:1936

C:\Users\Admin\AppData\Roaming\retwvs.exe
"C:\Users\Admin\AppData\Roaming\retwvs.exe"
2⤵
- Executes dropped EXE
PID:1848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1848 -s 184
3⤵
- Program crash
PID:1356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1848 -s 188
3⤵
- Program crash
PID:3724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1848 -ip 1848
1⤵
PID:572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1848 -ip 1848
1⤵
PID:3208

C:\Users\Admin\AppData\Roaming\retwvs.exe
C:\Users\Admin\AppData\Roaming\retwvs.exe
1⤵
- Executes dropped EXE
PID:3960

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\retwvs.exe.log
Filesize
520B

MD5
03febbff58da1d3318c31657d89c8542

SHA1
c9e017bd9d0a4fe533795b227c855935d86c2092

SHA256
5164770a37b199a79ccd23b399bb3309228973d9f74c589bc2623dc613b37ac4

SHA512
3750c372bbca1892e9c1b34681d592c693e725a8b149c3d6938079cd467628cec42c4293b0d886b57a786abf45f5e7229247b3445001774e3e793ff5a3accfa3

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

MD5
bfabfe78aa78696e50b54618f8b828e6

SHA1
10444cddc6fd263a1b4a3ee8fa477a3a1e673f81

SHA256
5d40878b671c96e0c31b04b38d416c808fe231b1eaade5b4e1bdf5345b371a2b

SHA512
75b739af5a7a84b740175bdb0d95a6c91ff38f6c52aacfaf82f61da2edb491bbf38494a21f09a83706509d7bdf1bcaaa14707bb61dcc1f32e7bc73fa8033a3b5

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

MD5
bfabfe78aa78696e50b54618f8b828e6

SHA1
10444cddc6fd263a1b4a3ee8fa477a3a1e673f81

SHA256
5d40878b671c96e0c31b04b38d416c808fe231b1eaade5b4e1bdf5345b371a2b

SHA512
75b739af5a7a84b740175bdb0d95a6c91ff38f6c52aacfaf82f61da2edb491bbf38494a21f09a83706509d7bdf1bcaaa14707bb61dcc1f32e7bc73fa8033a3b5

Download Submit
C:\Users\Admin\AppData\Roaming\retwvs.exe
Filesize
290.9MB

MD5
4cba9c5c4e7566c9ecd08d8af3b66fc1

SHA1
00a920c13a95813d3af3b0953a91e85b60c2c24c

SHA256
808c3c89f14114bbd0a43390689426c1e23624993c70c31a0a4e9e2baa5f87aa

SHA512
d4501968bbd5b281e2b6a3433573820bc0d53606a3822f9b1ce40eee79b7c2e806cd4efd0922028bc5df5d29d34cd1995f4f5feeb281fb8b44301e25e2ff6f8a

Download Submit
C:\Users\Admin\AppData\Roaming\retwvs.exe
Filesize
102.6MB

MD5
3c4eda5f977bd92605af1d37a70e2918

SHA1
a22f8c53406123dd356e270ff2f80b40219fb27b

SHA256
234a637e373418471caa81b888775f1fb5f65788b6d8e2cb4b156c9c1d7f4999

SHA512
7a11bd71bfcbda5b07355cb48bcfad5efc2d003b361599ac759794223cee17cb2b8b3f24113790bee150c117dfc4dcb9a8014a400280f2947a1799d7e70545ee

Download Submit
memory/212-132-0x0000000000000000-mapping.dmp

Download
memory/1048-130-0x0000000000060000-0x00000000001F4000-memory.dmp

Filesize
1.6MB

Download
memory/1048-131-0x00000000051D0000-0x0000000005774000-memory.dmp

Filesize
5.6MB

Download
memory/1848-153-0x0000000000A10000-0x0000000000DF4000-memory.dmp

Filesize
3.9MB

Download
memory/1848-152-0x0000000000A10000-0x0000000000DF4000-memory.dmp

Filesize
3.9MB

Download
memory/1848-149-0x0000000000000000-mapping.dmp

Download
memory/1936-148-0x0000000000000000-mapping.dmp

Download
memory/2676-133-0x0000000000000000-mapping.dmp

Download
memory/3628-136-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/3628-143-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/3628-142-0x0000000074A80000-0x0000000074AB9000-memory.dmp

Filesize
228KB

Download
memory/3628-141-0x00000000746E0000-0x0000000074719000-memory.dmp

Filesize
228KB

Download
memory/3628-140-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/3628-137-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/3628-138-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/3628-139-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/3628-135-0x0000000000000000-mapping.dmp

Download
memory/3756-147-0x0000000000000000-mapping.dmp

Download
memory/4136-134-0x0000000000000000-mapping.dmp

Download
memory/4232-146-0x0000000000000000-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