nymaim | 154e50241d9ae6604723723a64c54cbbcadf17fae607f6412cd16092f6050752

General

Target

154e50241d9ae6604723723a64c54cbbcadf17fae607f6412cd16092f6050752.exe
Size

2.9MB
MD5

824b746eb3b9055b7167c3add3809e00
SHA1

71367077c12f3267dd89a0e66a1743739ea789b9
SHA256

154e50241d9ae6604723723a64c54cbbcadf17fae607f6412cd16092f6050752
SHA512

a21b3f0925d0443daa564b6dcfea9b14bcad3fc786f82587261ece3356448dc8ac1be2bfa7fe6e8d368ce91704f9f4ddd29a5cf7118c6e3b29a02b11e2462c93
SSDEEP

49152:Z2caaCcrjmxLxFQGGv/50cANRsxz6bSe+cQAB9BLQCmI1PIta7A5hq:Mg5Pm5h250c3hKzLQIMDq

Score

10^/10

nymaim discovery trojan

Malware Config

Extracted

Family

nymaim

C2

45.139.105.171

85.31.46.167

Signatures

NyMaim
NyMaim is a malware with various capabilities written in C++ and first seen in 2013.
trojan nymaim

Executes dropped EXE 3 IoCs

pid	Process
2524	is-OMTNG.tmp
4068	fpsearcher69.exe
3488	a5PVEOSwiu.exe

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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	fpsearcher69.exe

Loads dropped DLL 1 IoCs

pid	Process
2524	is-OMTNG.tmp

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Program Files directory 12 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\fpSearcher\is-QU79R.tmp	is-OMTNG.tmp
File created	C:\Program Files (x86)\fpSearcher\is-2292V.tmp	is-OMTNG.tmp
File created	C:\Program Files (x86)\fpSearcher\is-TSACR.tmp	is-OMTNG.tmp
File opened for modification	C:\Program Files (x86)\fpSearcher\unins000.dat	is-OMTNG.tmp
File opened for modification	C:\Program Files (x86)\fpSearcher\fpsearcher69.exe	is-OMTNG.tmp
File created	C:\Program Files (x86)\fpSearcher\is-EQM3M.tmp	is-OMTNG.tmp
File created	C:\Program Files (x86)\fpSearcher\is-5GTRD.tmp	is-OMTNG.tmp
File created	C:\Program Files (x86)\fpSearcher\is-GSQQD.tmp	is-OMTNG.tmp
File created	C:\Program Files (x86)\fpSearcher\is-QHQPB.tmp	is-OMTNG.tmp
File created	C:\Program Files (x86)\fpSearcher\is-N3NHL.tmp	is-OMTNG.tmp
File created	C:\Program Files (x86)\fpSearcher\is-J08UE.tmp	is-OMTNG.tmp
File created	C:\Program Files (x86)\fpSearcher\unins000.dat	is-OMTNG.tmp

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

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
5008	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4068	fpsearcher69.exe
4068	fpsearcher69.exe
4068	fpsearcher69.exe
4068	fpsearcher69.exe
4068	fpsearcher69.exe
4068	fpsearcher69.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5008	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2524	2236	154e50241d9ae6604723723a64c54cbbcadf17fae607f6412cd16092f6050752.exe	76
PID 2236 wrote to memory of 2524	2236	154e50241d9ae6604723723a64c54cbbcadf17fae607f6412cd16092f6050752.exe	76
PID 2236 wrote to memory of 2524	2236	154e50241d9ae6604723723a64c54cbbcadf17fae607f6412cd16092f6050752.exe	76
PID 2524 wrote to memory of 4068	2524	is-OMTNG.tmp	77
PID 2524 wrote to memory of 4068	2524	is-OMTNG.tmp	77
PID 2524 wrote to memory of 4068	2524	is-OMTNG.tmp	77
PID 4068 wrote to memory of 3488	4068	fpsearcher69.exe	78
PID 4068 wrote to memory of 3488	4068	fpsearcher69.exe	78
PID 4068 wrote to memory of 3488	4068	fpsearcher69.exe	78
PID 4068 wrote to memory of 1136	4068	fpsearcher69.exe	81
PID 4068 wrote to memory of 1136	4068	fpsearcher69.exe	81
PID 4068 wrote to memory of 1136	4068	fpsearcher69.exe	81
PID 1136 wrote to memory of 5008	1136	cmd.exe	83
PID 1136 wrote to memory of 5008	1136	cmd.exe	83
PID 1136 wrote to memory of 5008	1136	cmd.exe	83

C:\Users\Admin\AppData\Local\Temp\154e50241d9ae6604723723a64c54cbbcadf17fae607f6412cd16092f6050752.exe
"C:\Users\Admin\AppData\Local\Temp\154e50241d9ae6604723723a64c54cbbcadf17fae607f6412cd16092f6050752.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Users\Admin\AppData\Local\Temp\is-NR6MD.tmp\is-OMTNG.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-NR6MD.tmp\is-OMTNG.tmp" /SL4 $80032 "C:\Users\Admin\AppData\Local\Temp\154e50241d9ae6604723723a64c54cbbcadf17fae607f6412cd16092f6050752.exe" 2764190 52736
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2524
- - C:\Program Files (x86)\fpSearcher\fpsearcher69.exe
    "C:\Program Files (x86)\fpSearcher\fpsearcher69.exe"
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:4068
  - - C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\a5PVEOSwiu.exe
      4⤵
      Executes dropped EXE
      PID:3488
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "fpsearcher69.exe" /f & erase "C:\Program Files (x86)\fpSearcher\fpsearcher69.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1136
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "fpsearcher69.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:5008

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\fpSearcher\fpsearcher69.exe

Filesize
4.3MB

MD5
17590aeadcb59384a1a29b5ff1e4c851

SHA1
8ed6a03a68376ecbbbb8a6b60f76fbab51b04023

SHA256
66916e1fde70e45d47a16e2bc58acd0b3c998cffb452b1b57dd2b74bde7e517f

SHA512
ad6af345ef9661fbf07743a3bd4b42dde768d77da4f284bcb73a32ce74b00c8f5439b2ef9059f82d0c4c6a894b1f693ad1bbd5c2d7f660709016ea3440199872

Download Submit
C:\Program Files (x86)\fpSearcher\fpsearcher69.exe

Filesize
4.3MB

MD5
17590aeadcb59384a1a29b5ff1e4c851

SHA1
8ed6a03a68376ecbbbb8a6b60f76fbab51b04023

SHA256
66916e1fde70e45d47a16e2bc58acd0b3c998cffb452b1b57dd2b74bde7e517f

SHA512
ad6af345ef9661fbf07743a3bd4b42dde768d77da4f284bcb73a32ce74b00c8f5439b2ef9059f82d0c4c6a894b1f693ad1bbd5c2d7f660709016ea3440199872

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-0F7GL.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-NR6MD.tmp\is-OMTNG.tmp

Filesize
657KB

MD5
7cd12c54a9751ca6eee6ab0c85fb68f5

SHA1
76562e9b7888b6d20d67addb5a90b68b54a51987

SHA256
e82cabb027db8846c3430be760f137afa164c36f9e1b93a6e34c96de0b2c5a5f

SHA512
27ba5d2f719aaac2ead6fb42f23af3aa866f75026be897cd2f561f3e383904e89e6043bd22b4ae24f69787bd258a68ff696c09c03d656cbf7c79c2a52d8d82cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-NR6MD.tmp\is-OMTNG.tmp

Filesize
657KB

MD5
7cd12c54a9751ca6eee6ab0c85fb68f5

SHA1
76562e9b7888b6d20d67addb5a90b68b54a51987

SHA256
e82cabb027db8846c3430be760f137afa164c36f9e1b93a6e34c96de0b2c5a5f

SHA512
27ba5d2f719aaac2ead6fb42f23af3aa866f75026be897cd2f561f3e383904e89e6043bd22b4ae24f69787bd258a68ff696c09c03d656cbf7c79c2a52d8d82cc

Download Submit
C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\a5PVEOSwiu.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
C:\Users\Admin\AppData\Roaming\{cd0d74c0-1ab4-11ed-b686-806e6f6e6963}\a5PVEOSwiu.exe

Filesize
72KB

MD5
3fb36cb0b7172e5298d2992d42984d06

SHA1
439827777df4a337cbb9fa4a4640d0d3fa1738b7

SHA256
27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6

SHA512
6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c

Download Submit
memory/2236-151-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2236-132-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2236-134-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2236-156-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4068-142-0x0000000000400000-0x0000000001656000-memory.dmp

Filesize
18.3MB

Download
memory/4068-143-0x0000000000400000-0x0000000001656000-memory.dmp

Filesize
18.3MB

Download
memory/4068-147-0x0000000010000000-0x000000001001B000-memory.dmp

Filesize
108KB

Download
memory/4068-152-0x0000000000400000-0x0000000001656000-memory.dmp

Filesize
18.3MB

Download
memory/4068-155-0x0000000000400000-0x0000000001656000-memory.dmp

Filesize
18.3MB

Download

Analysis

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