bitrat | 6f6c56d0e723796b5f60dfd53fe0370cc6b33e0f61d3356213b689ea402fdab5

General

Target

ETRANSFER_RECEIPT.exe
Size

300.0MB
MD5

8dac8b61bf8c23264873a3f3bee260f5
SHA1

ba581c38574794324ea714a48671fad7f2384dbe
SHA256

7e4a1f93d53d3962a913e000524344bdcccd6d36d0856b3df38df57d4a8e1df3
SHA512

65ef0b281583e1f8303ff470dc134d8d35ccc394521fd93294cd251220af501137b17d39af91829efe0191e395c2494e1652565895647bf04a46b56fe0eae163

Score

10^/10

bitrat 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
Executes dropped EXE 1 IoCs

Processes:

olkij.exe

pid process

904 olkij.exe

pid	process
904	olkij.exe

UPX packed file 9 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1612-59-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1612-61-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1612-62-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1612-65-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1612-64-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1612-68-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1612-69-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1612-70-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1612-71-0x0000000000400000-0x00000000007E4000-memory.dmp	upx

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

RegAsm.exe

pid process

1612 RegAsm.exe
1612 RegAsm.exe
1612 RegAsm.exe
1612 RegAsm.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

ETRANSFER_RECEIPT.exe

description pid process target process

PID 1148 set thread context of 1612 1148 ETRANSFER_RECEIPT.exe RegAsm.exe
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

368 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 1612 RegAsm.exe
Token: SeShutdownPrivilege 1612 RegAsm.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

RegAsm.exe

pid process

1612 RegAsm.exe
1612 RegAsm.exe

pid	process
1612	RegAsm.exe
1612	RegAsm.exe
1612	RegAsm.exe
1612	RegAsm.exe

description	pid	process	target process
PID 1148 set thread context of 1612	1148	ETRANSFER_RECEIPT.exe	RegAsm.exe

pid	process
368	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	1612	RegAsm.exe
Token: SeShutdownPrivilege	1612	RegAsm.exe

pid	process
1612	RegAsm.exe
1612	RegAsm.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

ETRANSFER_RECEIPT.execmd.exetaskeng.exe

description	pid	process	target process
PID 1148 wrote to memory of 976	1148	ETRANSFER_RECEIPT.exe	cmd.exe
PID 1148 wrote to memory of 976	1148	ETRANSFER_RECEIPT.exe	cmd.exe
PID 1148 wrote to memory of 976	1148	ETRANSFER_RECEIPT.exe	cmd.exe
PID 1148 wrote to memory of 976	1148	ETRANSFER_RECEIPT.exe	cmd.exe
PID 1148 wrote to memory of 896	1148	ETRANSFER_RECEIPT.exe	cmd.exe
PID 1148 wrote to memory of 896	1148	ETRANSFER_RECEIPT.exe	cmd.exe
PID 1148 wrote to memory of 896	1148	ETRANSFER_RECEIPT.exe	cmd.exe
PID 1148 wrote to memory of 896	1148	ETRANSFER_RECEIPT.exe	cmd.exe
PID 976 wrote to memory of 368	976	cmd.exe	schtasks.exe
PID 976 wrote to memory of 368	976	cmd.exe	schtasks.exe
PID 976 wrote to memory of 368	976	cmd.exe	schtasks.exe
PID 976 wrote to memory of 368	976	cmd.exe	schtasks.exe
PID 1148 wrote to memory of 1612	1148	ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 1148 wrote to memory of 1612	1148	ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 1148 wrote to memory of 1612	1148	ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 1148 wrote to memory of 1612	1148	ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 1148 wrote to memory of 1612	1148	ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 1148 wrote to memory of 1612	1148	ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 1148 wrote to memory of 1612	1148	ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 1148 wrote to memory of 1612	1148	ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 1148 wrote to memory of 1612	1148	ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 1148 wrote to memory of 1612	1148	ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 1148 wrote to memory of 1612	1148	ETRANSFER_RECEIPT.exe	RegAsm.exe
PID 1980 wrote to memory of 904	1980	taskeng.exe	olkij.exe
PID 1980 wrote to memory of 904	1980	taskeng.exe	olkij.exe
PID 1980 wrote to memory of 904	1980	taskeng.exe	olkij.exe
PID 1980 wrote to memory of 904	1980	taskeng.exe	olkij.exe

C:\Users\Admin\AppData\Local\Temp\ETRANSFER_RECEIPT.exe
"C:\Users\Admin\AppData\Local\Temp\ETRANSFER_RECEIPT.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1148
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Local\Temp\olkij.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:976
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Local\Temp\olkij.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:368
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\ETRANSFER_RECEIPT.exe" "C:\Users\Admin\AppData\Local\Temp\olkij.exe"
  2⤵
  PID:896
- 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:1612

C:\Windows\system32\taskeng.exe
taskeng.exe {4F15B8A4-4414-4759-940F-E1A037E5EDF4} S-1-5-21-4084403625-2215941253-1760665084-1000:LDLTPJLN\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Users\Admin\AppData\Local\Temp\olkij.exe
  C:\Users\Admin\AppData\Local\Temp\olkij.exe
  2⤵
  - Executes dropped EXE
  PID:904

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\olkij.exe

Filesize
234.2MB

MD5
80d52e07bb4a1c67332e79446872543d

SHA1
293aee909b3f9dd4cc7452837bd43f66d486ef9e

SHA256
f0a9d9ff79135b19fe1954921be39b51f59ccc85a57a8c6f171d7c35a1b08aa0

SHA512
29d4f58255bc24806d0197657b7849351f1fbeb71ee36f97ff307301b18988920ed0490971a53bf9ae86b1a3fb7e57d51be46246baa71f29679b3130cd95fb43

Download Submit
C:\Users\Admin\AppData\Local\Temp\olkij.exe

Filesize
234.6MB

MD5
85add4fbfe08f33ddb54465c3f09606c

SHA1
8d199b769de4e5cc69aa3127366238dfaba163be

SHA256
32b712fa8be19cd10e6a6188a60fafb52d4dac8cd0e86b5d63954d901d88e75e

SHA512
92022732d69f7e45bfcb08a2b89646b99f18a80866bd21556d01f91f84ba7f16ae5145f5229e545d80b1063bacec0530ea533afc9b5b0c5871c3f686b1e8e3c2

Download Submit
memory/368-57-0x0000000000000000-mapping.dmp

Download
memory/896-56-0x0000000000000000-mapping.dmp

Download
memory/904-75-0x00000000002B0000-0x000000000043A000-memory.dmp

Filesize
1.5MB

Download
memory/904-73-0x0000000000000000-mapping.dmp

Download
memory/976-55-0x0000000000000000-mapping.dmp

Download
memory/1148-54-0x0000000000C80000-0x0000000000E0A000-memory.dmp

Filesize
1.5MB

Download
memory/1612-64-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1612-65-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1612-62-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1612-66-0x00000000750B1000-0x00000000750B3000-memory.dmp

Filesize
8KB

Download
memory/1612-68-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1612-69-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1612-70-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1612-71-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1612-63-0x00000000007E2730-mapping.dmp

Download
memory/1612-61-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1612-59-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1612-58-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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