a2359309d16be094bde84b356d09a145042e57403d6ce77f406f0dabc5a9ad26

General

Target

a2359309d16be094bde84b356d09a145042e57403d6ce77f406f0dabc5a9ad26N.exe
Size

78KB
MD5

b5e5cc450ce24bb3ebce0a58805094c0
SHA1

d4324325761bb6c36b0695ecab77118e55192ba6
SHA256

a2359309d16be094bde84b356d09a145042e57403d6ce77f406f0dabc5a9ad26
SHA512

975dadfed33aad6ea427a05df3fac95f2a2070417aa7451167fdf868a99ff2f304353919973eeb93da901b35b47d1f06d9f8eb5989d6acc0c816df07016b5fa6
SSDEEP

1536:tCHF3M3xXT0XRhyRjVf3znOJTv3lcUK/+dWzCP7oYTcSQth9/C1xg:tCHF83xSyRxvY3md+dWWZyh9/5

Score

7^/10

discovery persistence

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	a2359309d16be094bde84b356d09a145042e57403d6ce77f406f0dabc5a9ad26N.exe

Deletes itself 1 IoCs

pid	Process
1220	tmp8C04.tmp.exe

Executes dropped EXE 1 IoCs

pid	Process
1220	tmp8C04.tmp.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ShFusRes = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\big5.exe\""	tmp8C04.tmp.exe

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 4 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	a2359309d16be094bde84b356d09a145042e57403d6ce77f406f0dabc5a9ad26N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cvtres.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tmp8C04.tmp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4856	a2359309d16be094bde84b356d09a145042e57403d6ce77f406f0dabc5a9ad26N.exe
Token: SeDebugPrivilege	1220	tmp8C04.tmp.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4856 wrote to memory of 4908	4856	a2359309d16be094bde84b356d09a145042e57403d6ce77f406f0dabc5a9ad26N.exe	82
PID 4856 wrote to memory of 4908	4856	a2359309d16be094bde84b356d09a145042e57403d6ce77f406f0dabc5a9ad26N.exe	82
PID 4856 wrote to memory of 4908	4856	a2359309d16be094bde84b356d09a145042e57403d6ce77f406f0dabc5a9ad26N.exe	82
PID 4908 wrote to memory of 2820	4908	vbc.exe	84
PID 4908 wrote to memory of 2820	4908	vbc.exe	84
PID 4908 wrote to memory of 2820	4908	vbc.exe	84
PID 4856 wrote to memory of 1220	4856	a2359309d16be094bde84b356d09a145042e57403d6ce77f406f0dabc5a9ad26N.exe	85
PID 4856 wrote to memory of 1220	4856	a2359309d16be094bde84b356d09a145042e57403d6ce77f406f0dabc5a9ad26N.exe	85
PID 4856 wrote to memory of 1220	4856	a2359309d16be094bde84b356d09a145042e57403d6ce77f406f0dabc5a9ad26N.exe	85

C:\Users\Admin\AppData\Local\Temp\a2359309d16be094bde84b356d09a145042e57403d6ce77f406f0dabc5a9ad26N.exe
"C:\Users\Admin\AppData\Local\Temp\a2359309d16be094bde84b356d09a145042e57403d6ce77f406f0dabc5a9ad26N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4856
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /noconfig @"C:\Users\Admin\AppData\Local\Temp\bomyj-uy.cmdline"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4908
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
    C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES8CDE.tmp" "C:\Users\Admin\AppData\Local\Temp\vbc351F56EE7B70472B9049AB6FC433C1CF.TMP"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2820
- C:\Users\Admin\AppData\Local\Temp\tmp8C04.tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp8C04.tmp.exe" C:\Users\Admin\AppData\Local\Temp\a2359309d16be094bde84b356d09a145042e57403d6ce77f406f0dabc5a9ad26N.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1220

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\RES8CDE.tmp

Filesize
1KB

MD5
08df5cf07f78bdb69e352bb8fefc2def

SHA1
f482267b03888ec3636c2e56a214910875824633

SHA256
44a4d813de7b3289586861eb921d8a2f9f1db21d86194dc47d5433cf2648d8c1

SHA512
cf69a1199051e094191ce068959f1ff9b8b0dbfde2eeaf6ca436915bda920dea523a108384ef34fffe6268756f5504701f47cb352993fcd320ff3e7847e1cee1

Download Submit
C:\Users\Admin\AppData\Local\Temp\bomyj-uy.0.vb

Filesize
15KB

MD5
63e07fb1b308f050ab257ac86b4109a2

SHA1
51f365d59d75181dc64bcf8f19ee7059a336a2a6

SHA256
db49ebadda1901dbccb4c8d5e6e476a21388c8daf85e2cda6f2e4b8a4b957d6f

SHA512
1f06c64c7bb8e27403d08136c967b1f8c4ad0e94fe1771244ccc4953cf6045d8d8d179ce3fd28674dbb44c51383415add42a06ef6d4be9763ae5b969f39f4066

Download Submit
C:\Users\Admin\AppData\Local\Temp\bomyj-uy.cmdline

Filesize
266B

MD5
1c670a6b8e668c0a3ea4747418a0c219

SHA1
27d49a57e798dc5e23d55b16360f745399838763

SHA256
f77ff67b75a651df5c252ff7f98991d284e6bac8bab47138ee881d6622badee4

SHA512
9e5af1ccb9d61ed7ed606b18af57cd9d7837ee8faf16bd2c910901e5d4af809b8a179e81af75b84c53ae05e71903fcb8ac9e63406cc03a482a77f8afdfb8516b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8C04.tmp.exe

Filesize
78KB

MD5
23fd4aa76219866b35a1679b145ef2fd

SHA1
c185f788222096d6e625caf2315bb96282031638

SHA256
b05637718d4c67f9884b6d69b60fef581b244511821ec2e17e85d7b81463f2f4

SHA512
a582a05ccaa28871b90da03935f4c3ba42f64092a150782390b210c1f0e6d33faac561a3f6414c616ca2c1f68cbf856b52131f4ff8ff3d857cc3e332e521ada6

Download Submit
C:\Users\Admin\AppData\Local\Temp\vbc351F56EE7B70472B9049AB6FC433C1CF.TMP

Filesize
660B

MD5
da787b0c7848c445118ae15e799b0c89

SHA1
1a5ae1a1ea2ea0d37719e5baa5b7dec8a96646c3

SHA256
41f53bd1f4c7495fc0a6d36bb813308e876dc45227d95ab5ee6f6c59f1d7a371

SHA512
f5e916affd3a6d429c741c93dd8dd99345fbc878dfee1419528f835afed0aaa2de790937730bc89f78c3b4329ea8f40e58572b92e728ca3d253b0f8188667e9b

Download Submit
C:\Users\Admin\AppData\Local\Temp\zCom.resources

Filesize
62KB

MD5
4f0e8cf79edb6cd381474b21cabfdf4a

SHA1
7018c96b4c5dab7957d4bcdc82c1e7bb3a4f80c4

SHA256
e54a257fa391065c120f55841de8c11116ea0e601d90fe1a35dcd340c5dd9cd5

SHA512
2451a59d09464e30d0df822d9322dbecb83faa92c5a5b71b7b9db62330c40cc7570d66235f137290074a3c4a9f3d8b3447067ed135f1bb60ea9e18d0df39a107

Download Submit
memory/1220-23-0x0000000074860000-0x0000000074E11000-memory.dmp

Filesize
5.7MB

Download
memory/1220-24-0x0000000074860000-0x0000000074E11000-memory.dmp

Filesize
5.7MB

Download
memory/1220-26-0x0000000074860000-0x0000000074E11000-memory.dmp

Filesize
5.7MB

Download
memory/1220-27-0x0000000074860000-0x0000000074E11000-memory.dmp

Filesize
5.7MB

Download
memory/1220-28-0x0000000074860000-0x0000000074E11000-memory.dmp

Filesize
5.7MB

Download
memory/1220-29-0x0000000074860000-0x0000000074E11000-memory.dmp

Filesize
5.7MB

Download
memory/1220-30-0x0000000074860000-0x0000000074E11000-memory.dmp

Filesize
5.7MB

Download
memory/4856-2-0x0000000074860000-0x0000000074E11000-memory.dmp

Filesize
5.7MB

Download
memory/4856-1-0x0000000074860000-0x0000000074E11000-memory.dmp

Filesize
5.7MB

Download
memory/4856-22-0x0000000074860000-0x0000000074E11000-memory.dmp

Filesize
5.7MB

Download
memory/4856-0-0x0000000074862000-0x0000000074863000-memory.dmp

Filesize
4KB

Download
memory/4908-8-0x0000000074860000-0x0000000074E11000-memory.dmp

Filesize
5.7MB

Download
memory/4908-18-0x0000000074860000-0x0000000074E11000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads