revengerat | 81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8df

General

Target

81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe
Size

1.4MB
MD5

8d61b160122f042623818b6b04a75330
SHA1

3db6b0029721bb9d8ef8171cd9247e107802ce5d
SHA256

81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8df
SHA512

92874240826994b6126305df63299041405258342e70d0956274e3460e807b52b57e0aa758c44fa6943ec794b074ef803e2a0f91d4bfeb1735f527b3a69dc539
SSDEEP

24576:2q5TfcdHj4fmbqOw2qdS0smVkVMyvLlnhWEzKJ9TtLvgl/piakl3Jro0zQJ9TtDT:2UTsamVwxUlC53akl325/

Score

10^/10

revengerat discovery stealer trojan upx

Malware Config

Signatures

RevengeRAT
Remote-access trojan with a wide range of capabilities.
trojan revengerat
Revengerat family
revengerat

RevengeRat Executable 1 IoCs

stealer

resource	yara_rule
behavioral1/files/0x0008000000016d0b-4.dat	revengerat

Executes dropped EXE 1 IoCs

pid	Process
2260	dmr_72.exe

Loads dropped DLL 4 IoCs

pid	Process
1048	81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe
1048	81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe
1048	81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe
1048	81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/1048-23-0x00000000000F0000-0x00000000003E9000-memory.dmp	autoit_exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1048-0-0x00000000000F0000-0x00000000003E9000-memory.dmp	upx
behavioral1/memory/1048-23-0x00000000000F0000-0x00000000003E9000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Nls\Language	81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Nls\Language\InstallLanguage	81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1048	81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2260	dmr_72.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1048	81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe
1048	81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe
1048	81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
1048	81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe
1048	81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe
1048	81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2260	dmr_72.exe
2260	dmr_72.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1048 wrote to memory of 2260	1048	81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe	28
PID 1048 wrote to memory of 2260	1048	81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe	28
PID 1048 wrote to memory of 2260	1048	81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe	28
PID 1048 wrote to memory of 2260	1048	81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe	28

C:\Users\Admin\AppData\Local\Temp\81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe
"C:\Users\Admin\AppData\Local\Temp\81bb81260c6182c6209baa19c4c6b0fc852c7db66850d10bc442f923f43be8dfN.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1048
- C:\Users\Admin\AppData\Local\Temp\DMR\dmr_72.exe
  "C:\Users\Admin\AppData\Local\Temp\DMR\dmr_72.exe" -install -54458834 -chipderedesign -30b3a4f7f5aa457aa22c7c289e14df87 - -BLUB2 -hkoqpgvhdmjybysc -1048
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2260

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\DMR\hkoqpgvhdmjybysc.dat

Filesize
159B

MD5
a33b52a6f0de169aa48c8cad63a9bb68

SHA1
9f0ea39425fc5006543255becb8a96e46972aab8

SHA256
80920af8710cb61b7764b31328d550b3dd9b5aa817b083477983ff9eda016549

SHA512
88042f7771ac76c937fdf5448312f261d5fd28e1d26497d8aa2b2ded1884e41b7bf66a875097173c45b736f8940b124cfb635ca7d4ccb31beff4dae900fadaee

Download Submit
\Users\Admin\AppData\Local\Temp\DMR\dmr_72.exe

Filesize
504KB

MD5
25bbe781403dbd685377647a982df817

SHA1
5b5ea2f5cec496f99d245a68c884c09f5849e037

SHA256
ca718f45191351cdda8ed5ca2c8074c899d32837dd019d325c72e4123b5edbfc

SHA512
595644e2542194371d2f3acb27932717464aa9b6e661bc71e5058b8189a433cd1938b49a9c3f241c3a6a675e93cfed97b336a125e2437358a37b0fb6f9714aa2

Download Submit
memory/1048-0-0x00000000000F0000-0x00000000003E9000-memory.dmp

Filesize
3.0MB

Download
memory/1048-23-0x00000000000F0000-0x00000000003E9000-memory.dmp

Filesize
3.0MB

Download
memory/2260-16-0x000007FEF5493000-0x000007FEF5494000-memory.dmp

Filesize
4KB

Download
memory/2260-17-0x0000000000100000-0x0000000000182000-memory.dmp

Filesize
520KB

Download
memory/2260-19-0x000007FEF5490000-0x000007FEF5E7C000-memory.dmp

Filesize
9.9MB

Download
memory/2260-20-0x000007FEF5490000-0x000007FEF5E7C000-memory.dmp

Filesize
9.9MB

Download
memory/2260-22-0x000007FEF5490000-0x000007FEF5E7C000-memory.dmp

Filesize
9.9MB

Download
memory/2260-21-0x000007FEF5490000-0x000007FEF5E7C000-memory.dmp

Filesize
9.9MB

Download
memory/2260-24-0x000007FEF5490000-0x000007FEF5E7C000-memory.dmp

Filesize
9.9MB

Download

Analysis

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