d1cd51ae6f229e7c23020511e2bee93c2a4710051a3e135942322a0a3262f131

General

Target

d1cd51ae6f229e7c23020511e2bee93c2a4710051a3e135942322a0a3262f131.exe
Size

80KB
MD5

9d5bc026c11ab9664e0feb53d3dc77e7
SHA1

34355e5e8a3f775c0e761f1bf6bb542d1077f9ac
SHA256

d1cd51ae6f229e7c23020511e2bee93c2a4710051a3e135942322a0a3262f131
SHA512

09211b69adaf649a0cf3957f760ed7b99906f68a7e61e4178fefe3468b7aade32bf6882d13d0edaed9299727394fb31b567db26aef0242bb060bd5f565d8472c
SSDEEP

1536:bDcWLfIbgEp10gyX/dtnTHNWnnn62222292:bDXL0n0gyX/d1re222292

Score

9^/10

evasion

Malware Config

Signatures

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

resource	yara_rule
behavioral1/memory/1028-0-0x0000000000400000-0x0000000000410000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/files/0x000c000000012253-3.dat	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/2512-5-0x0000000000400000-0x0000000000410000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/1028-6-0x0000000000400000-0x0000000000410000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/2512-7-0x0000000000400000-0x0000000000410000-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
2956	attrib.exe

Deletes itself 1 IoCs

pid	Process
2648	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2512	rwmhost.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Debug\rwmhost.exe	d1cd51ae6f229e7c23020511e2bee93c2a4710051a3e135942322a0a3262f131.exe
File opened for modification	C:\Windows\Debug\rwmhost.exe	d1cd51ae6f229e7c23020511e2bee93c2a4710051a3e135942322a0a3262f131.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

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rwmhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	rwmhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1028	d1cd51ae6f229e7c23020511e2bee93c2a4710051a3e135942322a0a3262f131.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1028 wrote to memory of 2956	1028	d1cd51ae6f229e7c23020511e2bee93c2a4710051a3e135942322a0a3262f131.exe	28
PID 1028 wrote to memory of 2956	1028	d1cd51ae6f229e7c23020511e2bee93c2a4710051a3e135942322a0a3262f131.exe	28
PID 1028 wrote to memory of 2956	1028	d1cd51ae6f229e7c23020511e2bee93c2a4710051a3e135942322a0a3262f131.exe	28
PID 1028 wrote to memory of 2956	1028	d1cd51ae6f229e7c23020511e2bee93c2a4710051a3e135942322a0a3262f131.exe	28
PID 1028 wrote to memory of 2648	1028	d1cd51ae6f229e7c23020511e2bee93c2a4710051a3e135942322a0a3262f131.exe	31
PID 1028 wrote to memory of 2648	1028	d1cd51ae6f229e7c23020511e2bee93c2a4710051a3e135942322a0a3262f131.exe	31
PID 1028 wrote to memory of 2648	1028	d1cd51ae6f229e7c23020511e2bee93c2a4710051a3e135942322a0a3262f131.exe	31
PID 1028 wrote to memory of 2648	1028	d1cd51ae6f229e7c23020511e2bee93c2a4710051a3e135942322a0a3262f131.exe	31

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2956	attrib.exe

C:\Users\Admin\AppData\Local\Temp\d1cd51ae6f229e7c23020511e2bee93c2a4710051a3e135942322a0a3262f131.exe
"C:\Users\Admin\AppData\Local\Temp\d1cd51ae6f229e7c23020511e2bee93c2a4710051a3e135942322a0a3262f131.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1028
- 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:2956
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\D1CD51~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2648

C:\Windows\Debug\rwmhost.exe
C:\Windows\Debug\rwmhost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:2512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

2

T1564

Hidden Files and Directories

2

T1564.001

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\Debug\rwmhost.exe

Filesize
80KB

MD5
464f56b026d9ee104c03224f4dc6e885

SHA1
05680ee4b2a9081259668baa3a99d25207702baa

SHA256
fd9e15c251a995e797a21b7bf11e868acdd7e546684c05b43778421349a25cfb

SHA512
57a5bf10b92583b670e6ee7a8b71f6d9800225ae86c6cb1236d952cf9e5c49a4b6b192f4cb2d4fa20f111bc0c6866c481fde9a44b43ee199b36479ffe9882f59

Download Submit
memory/1028-0-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/1028-6-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2512-5-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2512-7-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads