31e6d2713b38077f672c1b423d38761924a67bd72ab183afc5c8202a82af1dd8

Analysis

max time kernel
141s
max time network
128s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 20:16

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

31e6d2713b38077f672c1b423d38761924a67bd72ab183afc5c8202a82af1dd8.exe
Size

74KB
MD5

a561990ae7d8cc08741a9353a1259815
SHA1

014f707e3c14c0248458a401b1af98880cae48df
SHA256

31e6d2713b38077f672c1b423d38761924a67bd72ab183afc5c8202a82af1dd8
SHA512

dc312afa669f04dbbc357c7891fff12f8929de0270d23ad09dac4488538714f4b592ec9f081041c7b60b8bfa803e012afdf92ba123665253781c03692135fe3d
SSDEEP

384:+41DuuOFZyUVpULCgDb2prxVTn24X/m7Q6Al6z+yXpI5555Rq:fDcZyUpULCgo24T96ayXx

Score

9^/10

evasion

Malware Config

Signatures

Detects Windows executables referencing non-Windows User-Agents 5 IoCs

resource	yara_rule
behavioral1/memory/2020-0-0x0000000000400000-0x0000000000413000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/files/0x000b00000001227b-3.dat	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/2604-5-0x0000000000400000-0x0000000000413000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/2020-6-0x0000000000400000-0x0000000000413000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/2604-7-0x0000000000400000-0x0000000000413000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

Sets file to hidden 1 TTPs 1 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
2472	attrib.exe

Deletes itself 1 IoCs

pid	Process
2612	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2604	rwmhost.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Debug\rwmhost.exe	31e6d2713b38077f672c1b423d38761924a67bd72ab183afc5c8202a82af1dd8.exe
File opened for modification	C:\Windows\Debug\rwmhost.exe	31e6d2713b38077f672c1b423d38761924a67bd72ab183afc5c8202a82af1dd8.exe
File opened for modification	C:\Windows\Debug\rwmhost.exe	attrib.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2020	31e6d2713b38077f672c1b423d38761924a67bd72ab183afc5c8202a82af1dd8.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2020 wrote to memory of 2472	2020	31e6d2713b38077f672c1b423d38761924a67bd72ab183afc5c8202a82af1dd8.exe	28
PID 2020 wrote to memory of 2472	2020	31e6d2713b38077f672c1b423d38761924a67bd72ab183afc5c8202a82af1dd8.exe	28
PID 2020 wrote to memory of 2472	2020	31e6d2713b38077f672c1b423d38761924a67bd72ab183afc5c8202a82af1dd8.exe	28
PID 2020 wrote to memory of 2472	2020	31e6d2713b38077f672c1b423d38761924a67bd72ab183afc5c8202a82af1dd8.exe	28
PID 2020 wrote to memory of 2612	2020	31e6d2713b38077f672c1b423d38761924a67bd72ab183afc5c8202a82af1dd8.exe	31
PID 2020 wrote to memory of 2612	2020	31e6d2713b38077f672c1b423d38761924a67bd72ab183afc5c8202a82af1dd8.exe	31
PID 2020 wrote to memory of 2612	2020	31e6d2713b38077f672c1b423d38761924a67bd72ab183afc5c8202a82af1dd8.exe	31
PID 2020 wrote to memory of 2612	2020	31e6d2713b38077f672c1b423d38761924a67bd72ab183afc5c8202a82af1dd8.exe	31

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2472	attrib.exe

C:\Users\Admin\AppData\Local\Temp\31e6d2713b38077f672c1b423d38761924a67bd72ab183afc5c8202a82af1dd8.exe
"C:\Users\Admin\AppData\Local\Temp\31e6d2713b38077f672c1b423d38761924a67bd72ab183afc5c8202a82af1dd8.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2020
- C:\Windows\SysWOW64\attrib.exe
  attrib +a +s +h +r C:\Windows\Debug\rwmhost.exe
  2⤵
  - Sets file to hidden
  - Drops file in Windows directory
  - Views/modifies file attributes
  PID:2472
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\31E6D2~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2612

C:\Windows\Debug\rwmhost.exe
C:\Windows\Debug\rwmhost.exe
1⤵
- Executes dropped EXE
PID:2604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\Debug\rwmhost.exe

Filesize
75KB

MD5
5ac1df826894b8a54360950207959b09

SHA1
e26f1989767fa2eb2272919a918f7df06a6d24f0

SHA256
397bce4c35a7ccebc40e68940453cae687364e2310d3eb761786b815c7ff7a43

SHA512
a41030f06c7afdd9c60b4215f3711bd86eef84825252fc6b215e67b6bb6735fead6db5187440b403edf60e60847e2e56b2777eeeaeb4a8012829a4552cb90e08

Download Submit
memory/2020-0-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2020-6-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2604-5-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2604-7-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads